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Commit | Line | Data |
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9aaf880e | 1 | /* |
3efc2fa3 VZ |
2 | * DesignWare High-Definition Multimedia Interface (HDMI) driver |
3 | * | |
4 | * Copyright (C) 2013-2015 Mentor Graphics Inc. | |
9aaf880e | 5 | * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. |
3efc2fa3 | 6 | * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> |
9aaf880e FE |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
9aaf880e | 13 | */ |
b21f4b65 | 14 | #include <linux/module.h> |
9aaf880e FE |
15 | #include <linux/irq.h> |
16 | #include <linux/delay.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/clk.h> | |
5a819ed6 | 19 | #include <linux/hdmi.h> |
6bcf4953 | 20 | #include <linux/mutex.h> |
9aaf880e | 21 | #include <linux/of_device.h> |
80e2f979 | 22 | #include <linux/regmap.h> |
b90120a9 | 23 | #include <linux/spinlock.h> |
9aaf880e | 24 | |
3d1b35a3 | 25 | #include <drm/drm_of.h> |
9aaf880e | 26 | #include <drm/drmP.h> |
2c5b2ccc | 27 | #include <drm/drm_atomic_helper.h> |
9aaf880e FE |
28 | #include <drm/drm_crtc_helper.h> |
29 | #include <drm/drm_edid.h> | |
30 | #include <drm/drm_encoder_slave.h> | |
b21f4b65 | 31 | #include <drm/bridge/dw_hdmi.h> |
9aaf880e | 32 | |
def23aa7 NA |
33 | #include <uapi/linux/media-bus-format.h> |
34 | #include <uapi/linux/videodev2.h> | |
35 | ||
248a86fc TR |
36 | #include "dw-hdmi.h" |
37 | #include "dw-hdmi-audio.h" | |
a616e63c | 38 | #include "dw-hdmi-cec.h" |
9aaf880e | 39 | |
e84b8d75 RK |
40 | #include <media/cec-notifier.h> |
41 | ||
94bb4dc1 | 42 | #define DDC_SEGMENT_ADDR 0x30 |
e84b8d75 | 43 | |
9aaf880e FE |
44 | #define HDMI_EDID_LEN 512 |
45 | ||
9aaf880e FE |
46 | enum hdmi_datamap { |
47 | RGB444_8B = 0x01, | |
48 | RGB444_10B = 0x03, | |
49 | RGB444_12B = 0x05, | |
50 | RGB444_16B = 0x07, | |
51 | YCbCr444_8B = 0x09, | |
52 | YCbCr444_10B = 0x0B, | |
53 | YCbCr444_12B = 0x0D, | |
54 | YCbCr444_16B = 0x0F, | |
55 | YCbCr422_8B = 0x16, | |
56 | YCbCr422_10B = 0x14, | |
57 | YCbCr422_12B = 0x12, | |
58 | }; | |
59 | ||
9aaf880e FE |
60 | static const u16 csc_coeff_default[3][4] = { |
61 | { 0x2000, 0x0000, 0x0000, 0x0000 }, | |
62 | { 0x0000, 0x2000, 0x0000, 0x0000 }, | |
63 | { 0x0000, 0x0000, 0x2000, 0x0000 } | |
64 | }; | |
65 | ||
66 | static const u16 csc_coeff_rgb_out_eitu601[3][4] = { | |
67 | { 0x2000, 0x6926, 0x74fd, 0x010e }, | |
68 | { 0x2000, 0x2cdd, 0x0000, 0x7e9a }, | |
69 | { 0x2000, 0x0000, 0x38b4, 0x7e3b } | |
70 | }; | |
71 | ||
72 | static const u16 csc_coeff_rgb_out_eitu709[3][4] = { | |
73 | { 0x2000, 0x7106, 0x7a02, 0x00a7 }, | |
74 | { 0x2000, 0x3264, 0x0000, 0x7e6d }, | |
75 | { 0x2000, 0x0000, 0x3b61, 0x7e25 } | |
76 | }; | |
77 | ||
78 | static const u16 csc_coeff_rgb_in_eitu601[3][4] = { | |
79 | { 0x2591, 0x1322, 0x074b, 0x0000 }, | |
80 | { 0x6535, 0x2000, 0x7acc, 0x0200 }, | |
81 | { 0x6acd, 0x7534, 0x2000, 0x0200 } | |
82 | }; | |
83 | ||
84 | static const u16 csc_coeff_rgb_in_eitu709[3][4] = { | |
85 | { 0x2dc5, 0x0d9b, 0x049e, 0x0000 }, | |
86 | { 0x62f0, 0x2000, 0x7d11, 0x0200 }, | |
87 | { 0x6756, 0x78ab, 0x2000, 0x0200 } | |
88 | }; | |
89 | ||
90 | struct hdmi_vmode { | |
9aaf880e FE |
91 | bool mdataenablepolarity; |
92 | ||
93 | unsigned int mpixelclock; | |
94 | unsigned int mpixelrepetitioninput; | |
95 | unsigned int mpixelrepetitionoutput; | |
96 | }; | |
97 | ||
98 | struct hdmi_data_info { | |
def23aa7 NA |
99 | unsigned int enc_in_bus_format; |
100 | unsigned int enc_out_bus_format; | |
101 | unsigned int enc_in_encoding; | |
102 | unsigned int enc_out_encoding; | |
9aaf880e FE |
103 | unsigned int pix_repet_factor; |
104 | unsigned int hdcp_enable; | |
105 | struct hdmi_vmode video_mode; | |
106 | }; | |
107 | ||
3efc2fa3 VZ |
108 | struct dw_hdmi_i2c { |
109 | struct i2c_adapter adap; | |
110 | ||
111 | struct mutex lock; /* used to serialize data transfers */ | |
112 | struct completion cmp; | |
113 | u8 stat; | |
114 | ||
115 | u8 slave_reg; | |
116 | bool is_regaddr; | |
94bb4dc1 | 117 | bool is_segment; |
3efc2fa3 VZ |
118 | }; |
119 | ||
faba6c3c LP |
120 | struct dw_hdmi_phy_data { |
121 | enum dw_hdmi_phy_type type; | |
122 | const char *name; | |
b0e583e5 | 123 | unsigned int gen; |
faba6c3c | 124 | bool has_svsret; |
2ef9dfed KB |
125 | int (*configure)(struct dw_hdmi *hdmi, |
126 | const struct dw_hdmi_plat_data *pdata, | |
127 | unsigned long mpixelclock); | |
faba6c3c LP |
128 | }; |
129 | ||
b21f4b65 | 130 | struct dw_hdmi { |
9aaf880e | 131 | struct drm_connector connector; |
70c963ec | 132 | struct drm_bridge bridge; |
9aaf880e | 133 | |
be41fc55 LP |
134 | unsigned int version; |
135 | ||
136 | struct platform_device *audio; | |
a616e63c | 137 | struct platform_device *cec; |
9aaf880e FE |
138 | struct device *dev; |
139 | struct clk *isfr_clk; | |
140 | struct clk *iahb_clk; | |
ebe32c3e | 141 | struct clk *cec_clk; |
3efc2fa3 | 142 | struct dw_hdmi_i2c *i2c; |
9aaf880e FE |
143 | |
144 | struct hdmi_data_info hdmi_data; | |
b21f4b65 AY |
145 | const struct dw_hdmi_plat_data *plat_data; |
146 | ||
9aaf880e FE |
147 | int vic; |
148 | ||
149 | u8 edid[HDMI_EDID_LEN]; | |
150 | bool cable_plugin; | |
151 | ||
f1585f6e LP |
152 | struct { |
153 | const struct dw_hdmi_phy_ops *ops; | |
154 | const char *name; | |
155 | void *data; | |
156 | bool enabled; | |
157 | } phy; | |
faba6c3c | 158 | |
9aaf880e FE |
159 | struct drm_display_mode previous_mode; |
160 | ||
9aaf880e FE |
161 | struct i2c_adapter *ddc; |
162 | void __iomem *regs; | |
05b1342f | 163 | bool sink_is_hdmi; |
f709ec07 | 164 | bool sink_has_audio; |
9aaf880e | 165 | |
b872a8e1 | 166 | struct mutex mutex; /* for state below and previous_mode */ |
381f05a7 | 167 | enum drm_connector_force force; /* mutex-protected force state */ |
b872a8e1 | 168 | bool disabled; /* DRM has disabled our bridge */ |
381f05a7 | 169 | bool bridge_is_on; /* indicates the bridge is on */ |
aeac23bd RK |
170 | bool rxsense; /* rxsense state */ |
171 | u8 phy_mask; /* desired phy int mask settings */ | |
7cc4ab22 | 172 | u8 mc_clkdis; /* clock disable register */ |
b872a8e1 | 173 | |
b90120a9 | 174 | spinlock_t audio_lock; |
6bcf4953 | 175 | struct mutex audio_mutex; |
9aaf880e | 176 | unsigned int sample_rate; |
b90120a9 RK |
177 | unsigned int audio_cts; |
178 | unsigned int audio_n; | |
179 | bool audio_enable; | |
0cd9d142 | 180 | |
80e2f979 NA |
181 | unsigned int reg_shift; |
182 | struct regmap *regm; | |
a7d555d2 RP |
183 | void (*enable_audio)(struct dw_hdmi *hdmi); |
184 | void (*disable_audio)(struct dw_hdmi *hdmi); | |
e84b8d75 RK |
185 | |
186 | struct cec_notifier *cec_notifier; | |
9aaf880e FE |
187 | }; |
188 | ||
aeac23bd RK |
189 | #define HDMI_IH_PHY_STAT0_RX_SENSE \ |
190 | (HDMI_IH_PHY_STAT0_RX_SENSE0 | HDMI_IH_PHY_STAT0_RX_SENSE1 | \ | |
191 | HDMI_IH_PHY_STAT0_RX_SENSE2 | HDMI_IH_PHY_STAT0_RX_SENSE3) | |
192 | ||
193 | #define HDMI_PHY_RX_SENSE \ | |
194 | (HDMI_PHY_RX_SENSE0 | HDMI_PHY_RX_SENSE1 | \ | |
195 | HDMI_PHY_RX_SENSE2 | HDMI_PHY_RX_SENSE3) | |
196 | ||
0cd9d142 AY |
197 | static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset) |
198 | { | |
80e2f979 | 199 | regmap_write(hdmi->regm, offset << hdmi->reg_shift, val); |
0cd9d142 AY |
200 | } |
201 | ||
202 | static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset) | |
203 | { | |
80e2f979 NA |
204 | unsigned int val = 0; |
205 | ||
206 | regmap_read(hdmi->regm, offset << hdmi->reg_shift, &val); | |
207 | ||
208 | return val; | |
0cd9d142 AY |
209 | } |
210 | ||
b21f4b65 | 211 | static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg) |
812bc615 | 212 | { |
80e2f979 | 213 | regmap_update_bits(hdmi->regm, reg << hdmi->reg_shift, mask, data); |
812bc615 RK |
214 | } |
215 | ||
b21f4b65 | 216 | static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg, |
b5878339 | 217 | u8 shift, u8 mask) |
9aaf880e | 218 | { |
812bc615 | 219 | hdmi_modb(hdmi, data << shift, mask, reg); |
9aaf880e FE |
220 | } |
221 | ||
3efc2fa3 VZ |
222 | static void dw_hdmi_i2c_init(struct dw_hdmi *hdmi) |
223 | { | |
224 | /* Software reset */ | |
225 | hdmi_writeb(hdmi, 0x00, HDMI_I2CM_SOFTRSTZ); | |
226 | ||
227 | /* Set Standard Mode speed (determined to be 100KHz on iMX6) */ | |
228 | hdmi_writeb(hdmi, 0x00, HDMI_I2CM_DIV); | |
229 | ||
230 | /* Set done, not acknowledged and arbitration interrupt polarities */ | |
231 | hdmi_writeb(hdmi, HDMI_I2CM_INT_DONE_POL, HDMI_I2CM_INT); | |
232 | hdmi_writeb(hdmi, HDMI_I2CM_CTLINT_NAC_POL | HDMI_I2CM_CTLINT_ARB_POL, | |
233 | HDMI_I2CM_CTLINT); | |
234 | ||
235 | /* Clear DONE and ERROR interrupts */ | |
236 | hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, | |
237 | HDMI_IH_I2CM_STAT0); | |
238 | ||
239 | /* Mute DONE and ERROR interrupts */ | |
240 | hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, | |
241 | HDMI_IH_MUTE_I2CM_STAT0); | |
242 | } | |
243 | ||
244 | static int dw_hdmi_i2c_read(struct dw_hdmi *hdmi, | |
245 | unsigned char *buf, unsigned int length) | |
246 | { | |
247 | struct dw_hdmi_i2c *i2c = hdmi->i2c; | |
248 | int stat; | |
249 | ||
250 | if (!i2c->is_regaddr) { | |
251 | dev_dbg(hdmi->dev, "set read register address to 0\n"); | |
252 | i2c->slave_reg = 0x00; | |
253 | i2c->is_regaddr = true; | |
254 | } | |
255 | ||
256 | while (length--) { | |
257 | reinit_completion(&i2c->cmp); | |
258 | ||
259 | hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS); | |
94bb4dc1 NY |
260 | if (i2c->is_segment) |
261 | hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ_EXT, | |
262 | HDMI_I2CM_OPERATION); | |
263 | else | |
264 | hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ, | |
265 | HDMI_I2CM_OPERATION); | |
3efc2fa3 VZ |
266 | |
267 | stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10); | |
268 | if (!stat) | |
269 | return -EAGAIN; | |
270 | ||
271 | /* Check for error condition on the bus */ | |
272 | if (i2c->stat & HDMI_IH_I2CM_STAT0_ERROR) | |
273 | return -EIO; | |
274 | ||
275 | *buf++ = hdmi_readb(hdmi, HDMI_I2CM_DATAI); | |
276 | } | |
94bb4dc1 | 277 | i2c->is_segment = false; |
3efc2fa3 VZ |
278 | |
279 | return 0; | |
280 | } | |
281 | ||
282 | static int dw_hdmi_i2c_write(struct dw_hdmi *hdmi, | |
283 | unsigned char *buf, unsigned int length) | |
284 | { | |
285 | struct dw_hdmi_i2c *i2c = hdmi->i2c; | |
286 | int stat; | |
287 | ||
288 | if (!i2c->is_regaddr) { | |
289 | /* Use the first write byte as register address */ | |
290 | i2c->slave_reg = buf[0]; | |
291 | length--; | |
292 | buf++; | |
293 | i2c->is_regaddr = true; | |
294 | } | |
295 | ||
296 | while (length--) { | |
297 | reinit_completion(&i2c->cmp); | |
298 | ||
299 | hdmi_writeb(hdmi, *buf++, HDMI_I2CM_DATAO); | |
300 | hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS); | |
301 | hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_WRITE, | |
302 | HDMI_I2CM_OPERATION); | |
303 | ||
304 | stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10); | |
305 | if (!stat) | |
306 | return -EAGAIN; | |
307 | ||
308 | /* Check for error condition on the bus */ | |
309 | if (i2c->stat & HDMI_IH_I2CM_STAT0_ERROR) | |
310 | return -EIO; | |
311 | } | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | static int dw_hdmi_i2c_xfer(struct i2c_adapter *adap, | |
317 | struct i2c_msg *msgs, int num) | |
318 | { | |
319 | struct dw_hdmi *hdmi = i2c_get_adapdata(adap); | |
320 | struct dw_hdmi_i2c *i2c = hdmi->i2c; | |
321 | u8 addr = msgs[0].addr; | |
322 | int i, ret = 0; | |
323 | ||
324 | dev_dbg(hdmi->dev, "xfer: num: %d, addr: %#x\n", num, addr); | |
325 | ||
326 | for (i = 0; i < num; i++) { | |
3efc2fa3 VZ |
327 | if (msgs[i].len == 0) { |
328 | dev_dbg(hdmi->dev, | |
329 | "unsupported transfer %d/%d, no data\n", | |
330 | i + 1, num); | |
331 | return -EOPNOTSUPP; | |
332 | } | |
333 | } | |
334 | ||
335 | mutex_lock(&i2c->lock); | |
336 | ||
337 | /* Unmute DONE and ERROR interrupts */ | |
338 | hdmi_writeb(hdmi, 0x00, HDMI_IH_MUTE_I2CM_STAT0); | |
339 | ||
340 | /* Set slave device address taken from the first I2C message */ | |
341 | hdmi_writeb(hdmi, addr, HDMI_I2CM_SLAVE); | |
342 | ||
343 | /* Set slave device register address on transfer */ | |
344 | i2c->is_regaddr = false; | |
345 | ||
94bb4dc1 NY |
346 | /* Set segment pointer for I2C extended read mode operation */ |
347 | i2c->is_segment = false; | |
348 | ||
3efc2fa3 VZ |
349 | for (i = 0; i < num; i++) { |
350 | dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n", | |
351 | i + 1, num, msgs[i].len, msgs[i].flags); | |
94bb4dc1 NY |
352 | if (msgs[i].addr == DDC_SEGMENT_ADDR && msgs[i].len == 1) { |
353 | i2c->is_segment = true; | |
354 | hdmi_writeb(hdmi, DDC_SEGMENT_ADDR, HDMI_I2CM_SEGADDR); | |
355 | hdmi_writeb(hdmi, *msgs[i].buf, HDMI_I2CM_SEGPTR); | |
356 | } else { | |
357 | if (msgs[i].flags & I2C_M_RD) | |
358 | ret = dw_hdmi_i2c_read(hdmi, msgs[i].buf, | |
359 | msgs[i].len); | |
360 | else | |
361 | ret = dw_hdmi_i2c_write(hdmi, msgs[i].buf, | |
362 | msgs[i].len); | |
363 | } | |
3efc2fa3 VZ |
364 | if (ret < 0) |
365 | break; | |
366 | } | |
367 | ||
368 | if (!ret) | |
369 | ret = num; | |
370 | ||
371 | /* Mute DONE and ERROR interrupts */ | |
372 | hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE, | |
373 | HDMI_IH_MUTE_I2CM_STAT0); | |
374 | ||
375 | mutex_unlock(&i2c->lock); | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | static u32 dw_hdmi_i2c_func(struct i2c_adapter *adapter) | |
381 | { | |
382 | return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; | |
383 | } | |
384 | ||
385 | static const struct i2c_algorithm dw_hdmi_algorithm = { | |
386 | .master_xfer = dw_hdmi_i2c_xfer, | |
387 | .functionality = dw_hdmi_i2c_func, | |
388 | }; | |
389 | ||
390 | static struct i2c_adapter *dw_hdmi_i2c_adapter(struct dw_hdmi *hdmi) | |
391 | { | |
392 | struct i2c_adapter *adap; | |
393 | struct dw_hdmi_i2c *i2c; | |
394 | int ret; | |
395 | ||
396 | i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL); | |
397 | if (!i2c) | |
398 | return ERR_PTR(-ENOMEM); | |
399 | ||
400 | mutex_init(&i2c->lock); | |
401 | init_completion(&i2c->cmp); | |
402 | ||
403 | adap = &i2c->adap; | |
404 | adap->class = I2C_CLASS_DDC; | |
405 | adap->owner = THIS_MODULE; | |
406 | adap->dev.parent = hdmi->dev; | |
407 | adap->algo = &dw_hdmi_algorithm; | |
408 | strlcpy(adap->name, "DesignWare HDMI", sizeof(adap->name)); | |
409 | i2c_set_adapdata(adap, hdmi); | |
410 | ||
411 | ret = i2c_add_adapter(adap); | |
412 | if (ret) { | |
413 | dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name); | |
414 | devm_kfree(hdmi->dev, i2c); | |
415 | return ERR_PTR(ret); | |
416 | } | |
417 | ||
418 | hdmi->i2c = i2c; | |
419 | ||
420 | dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name); | |
421 | ||
422 | return adap; | |
423 | } | |
424 | ||
351e1354 RK |
425 | static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts, |
426 | unsigned int n) | |
9aaf880e | 427 | { |
622494a3 RK |
428 | /* Must be set/cleared first */ |
429 | hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); | |
9aaf880e FE |
430 | |
431 | /* nshift factor = 0 */ | |
812bc615 | 432 | hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3); |
9aaf880e | 433 | |
9aaf880e FE |
434 | hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) | |
435 | HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3); | |
622494a3 RK |
436 | hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2); |
437 | hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1); | |
438 | ||
439 | hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3); | |
440 | hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2); | |
441 | hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1); | |
9aaf880e FE |
442 | } |
443 | ||
b195fbdb | 444 | static unsigned int hdmi_compute_n(unsigned int freq, unsigned long pixel_clk) |
9aaf880e FE |
445 | { |
446 | unsigned int n = (128 * freq) / 1000; | |
d0c96d16 RK |
447 | unsigned int mult = 1; |
448 | ||
449 | while (freq > 48000) { | |
450 | mult *= 2; | |
451 | freq /= 2; | |
452 | } | |
9aaf880e FE |
453 | |
454 | switch (freq) { | |
455 | case 32000: | |
426701d0 | 456 | if (pixel_clk == 25175000) |
b195fbdb | 457 | n = 4576; |
426701d0 | 458 | else if (pixel_clk == 27027000) |
b195fbdb | 459 | n = 4096; |
426701d0 | 460 | else if (pixel_clk == 74176000 || pixel_clk == 148352000) |
9aaf880e FE |
461 | n = 11648; |
462 | else | |
463 | n = 4096; | |
d0c96d16 | 464 | n *= mult; |
9aaf880e FE |
465 | break; |
466 | ||
467 | case 44100: | |
426701d0 | 468 | if (pixel_clk == 25175000) |
9aaf880e | 469 | n = 7007; |
426701d0 | 470 | else if (pixel_clk == 74176000) |
9aaf880e | 471 | n = 17836; |
426701d0 | 472 | else if (pixel_clk == 148352000) |
b195fbdb | 473 | n = 8918; |
9aaf880e FE |
474 | else |
475 | n = 6272; | |
d0c96d16 | 476 | n *= mult; |
9aaf880e FE |
477 | break; |
478 | ||
479 | case 48000: | |
426701d0 | 480 | if (pixel_clk == 25175000) |
b195fbdb | 481 | n = 6864; |
426701d0 | 482 | else if (pixel_clk == 27027000) |
b195fbdb | 483 | n = 6144; |
426701d0 | 484 | else if (pixel_clk == 74176000) |
9aaf880e | 485 | n = 11648; |
426701d0 | 486 | else if (pixel_clk == 148352000) |
b195fbdb | 487 | n = 5824; |
9aaf880e FE |
488 | else |
489 | n = 6144; | |
d0c96d16 | 490 | n *= mult; |
9aaf880e FE |
491 | break; |
492 | ||
493 | default: | |
494 | break; | |
495 | } | |
496 | ||
497 | return n; | |
498 | } | |
499 | ||
b21f4b65 | 500 | static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi, |
b195fbdb | 501 | unsigned long pixel_clk, unsigned int sample_rate) |
9aaf880e | 502 | { |
dfbdaf50 | 503 | unsigned long ftdms = pixel_clk; |
f879b38f | 504 | unsigned int n, cts; |
dfbdaf50 | 505 | u64 tmp; |
9aaf880e | 506 | |
b195fbdb | 507 | n = hdmi_compute_n(sample_rate, pixel_clk); |
9aaf880e | 508 | |
dfbdaf50 RK |
509 | /* |
510 | * Compute the CTS value from the N value. Note that CTS and N | |
511 | * can be up to 20 bits in total, so we need 64-bit math. Also | |
512 | * note that our TDMS clock is not fully accurate; it is accurate | |
513 | * to kHz. This can introduce an unnecessary remainder in the | |
514 | * calculation below, so we don't try to warn about that. | |
515 | */ | |
516 | tmp = (u64)ftdms * n; | |
517 | do_div(tmp, 128 * sample_rate); | |
518 | cts = tmp; | |
519 | ||
520 | dev_dbg(hdmi->dev, "%s: fs=%uHz ftdms=%lu.%03luMHz N=%d cts=%d\n", | |
521 | __func__, sample_rate, ftdms / 1000000, (ftdms / 1000) % 1000, | |
522 | n, cts); | |
9aaf880e | 523 | |
b90120a9 RK |
524 | spin_lock_irq(&hdmi->audio_lock); |
525 | hdmi->audio_n = n; | |
526 | hdmi->audio_cts = cts; | |
527 | hdmi_set_cts_n(hdmi, cts, hdmi->audio_enable ? n : 0); | |
528 | spin_unlock_irq(&hdmi->audio_lock); | |
9aaf880e FE |
529 | } |
530 | ||
b21f4b65 | 531 | static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi) |
9aaf880e | 532 | { |
6bcf4953 | 533 | mutex_lock(&hdmi->audio_mutex); |
b195fbdb | 534 | hdmi_set_clk_regenerator(hdmi, 74250000, hdmi->sample_rate); |
6bcf4953 | 535 | mutex_unlock(&hdmi->audio_mutex); |
9aaf880e FE |
536 | } |
537 | ||
b21f4b65 | 538 | static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi) |
9aaf880e | 539 | { |
6bcf4953 | 540 | mutex_lock(&hdmi->audio_mutex); |
f879b38f | 541 | hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock, |
b195fbdb | 542 | hdmi->sample_rate); |
6bcf4953 | 543 | mutex_unlock(&hdmi->audio_mutex); |
9aaf880e FE |
544 | } |
545 | ||
b5814fff RK |
546 | void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate) |
547 | { | |
548 | mutex_lock(&hdmi->audio_mutex); | |
549 | hdmi->sample_rate = rate; | |
550 | hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock, | |
b195fbdb | 551 | hdmi->sample_rate); |
b5814fff RK |
552 | mutex_unlock(&hdmi->audio_mutex); |
553 | } | |
554 | EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_rate); | |
555 | ||
57fbc055 RP |
556 | static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi, bool enable) |
557 | { | |
7cc4ab22 RK |
558 | if (enable) |
559 | hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_AUDCLK_DISABLE; | |
560 | else | |
561 | hdmi->mc_clkdis |= HDMI_MC_CLKDIS_AUDCLK_DISABLE; | |
562 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
57fbc055 RP |
563 | } |
564 | ||
a7d555d2 RP |
565 | static void dw_hdmi_ahb_audio_enable(struct dw_hdmi *hdmi) |
566 | { | |
567 | hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n); | |
568 | } | |
569 | ||
570 | static void dw_hdmi_ahb_audio_disable(struct dw_hdmi *hdmi) | |
571 | { | |
572 | hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0); | |
573 | } | |
574 | ||
575 | static void dw_hdmi_i2s_audio_enable(struct dw_hdmi *hdmi) | |
576 | { | |
577 | hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n); | |
57fbc055 RP |
578 | hdmi_enable_audio_clk(hdmi, true); |
579 | } | |
580 | ||
581 | static void dw_hdmi_i2s_audio_disable(struct dw_hdmi *hdmi) | |
582 | { | |
583 | hdmi_enable_audio_clk(hdmi, false); | |
a7d555d2 RP |
584 | } |
585 | ||
b90120a9 RK |
586 | void dw_hdmi_audio_enable(struct dw_hdmi *hdmi) |
587 | { | |
588 | unsigned long flags; | |
589 | ||
590 | spin_lock_irqsave(&hdmi->audio_lock, flags); | |
591 | hdmi->audio_enable = true; | |
a7d555d2 RP |
592 | if (hdmi->enable_audio) |
593 | hdmi->enable_audio(hdmi); | |
b90120a9 RK |
594 | spin_unlock_irqrestore(&hdmi->audio_lock, flags); |
595 | } | |
596 | EXPORT_SYMBOL_GPL(dw_hdmi_audio_enable); | |
597 | ||
598 | void dw_hdmi_audio_disable(struct dw_hdmi *hdmi) | |
599 | { | |
600 | unsigned long flags; | |
601 | ||
602 | spin_lock_irqsave(&hdmi->audio_lock, flags); | |
603 | hdmi->audio_enable = false; | |
a7d555d2 RP |
604 | if (hdmi->disable_audio) |
605 | hdmi->disable_audio(hdmi); | |
b90120a9 RK |
606 | spin_unlock_irqrestore(&hdmi->audio_lock, flags); |
607 | } | |
608 | EXPORT_SYMBOL_GPL(dw_hdmi_audio_disable); | |
609 | ||
def23aa7 NA |
610 | static bool hdmi_bus_fmt_is_rgb(unsigned int bus_format) |
611 | { | |
612 | switch (bus_format) { | |
613 | case MEDIA_BUS_FMT_RGB888_1X24: | |
614 | case MEDIA_BUS_FMT_RGB101010_1X30: | |
615 | case MEDIA_BUS_FMT_RGB121212_1X36: | |
616 | case MEDIA_BUS_FMT_RGB161616_1X48: | |
617 | return true; | |
618 | ||
619 | default: | |
620 | return false; | |
621 | } | |
622 | } | |
623 | ||
624 | static bool hdmi_bus_fmt_is_yuv444(unsigned int bus_format) | |
625 | { | |
626 | switch (bus_format) { | |
627 | case MEDIA_BUS_FMT_YUV8_1X24: | |
628 | case MEDIA_BUS_FMT_YUV10_1X30: | |
629 | case MEDIA_BUS_FMT_YUV12_1X36: | |
630 | case MEDIA_BUS_FMT_YUV16_1X48: | |
631 | return true; | |
632 | ||
633 | default: | |
634 | return false; | |
635 | } | |
636 | } | |
637 | ||
638 | static bool hdmi_bus_fmt_is_yuv422(unsigned int bus_format) | |
639 | { | |
640 | switch (bus_format) { | |
641 | case MEDIA_BUS_FMT_UYVY8_1X16: | |
642 | case MEDIA_BUS_FMT_UYVY10_1X20: | |
643 | case MEDIA_BUS_FMT_UYVY12_1X24: | |
644 | return true; | |
645 | ||
646 | default: | |
647 | return false; | |
648 | } | |
649 | } | |
650 | ||
def23aa7 NA |
651 | static int hdmi_bus_fmt_color_depth(unsigned int bus_format) |
652 | { | |
653 | switch (bus_format) { | |
654 | case MEDIA_BUS_FMT_RGB888_1X24: | |
655 | case MEDIA_BUS_FMT_YUV8_1X24: | |
656 | case MEDIA_BUS_FMT_UYVY8_1X16: | |
657 | case MEDIA_BUS_FMT_UYYVYY8_0_5X24: | |
658 | return 8; | |
659 | ||
660 | case MEDIA_BUS_FMT_RGB101010_1X30: | |
661 | case MEDIA_BUS_FMT_YUV10_1X30: | |
662 | case MEDIA_BUS_FMT_UYVY10_1X20: | |
663 | case MEDIA_BUS_FMT_UYYVYY10_0_5X30: | |
664 | return 10; | |
665 | ||
666 | case MEDIA_BUS_FMT_RGB121212_1X36: | |
667 | case MEDIA_BUS_FMT_YUV12_1X36: | |
668 | case MEDIA_BUS_FMT_UYVY12_1X24: | |
669 | case MEDIA_BUS_FMT_UYYVYY12_0_5X36: | |
670 | return 12; | |
671 | ||
672 | case MEDIA_BUS_FMT_RGB161616_1X48: | |
673 | case MEDIA_BUS_FMT_YUV16_1X48: | |
674 | case MEDIA_BUS_FMT_UYYVYY16_0_5X48: | |
675 | return 16; | |
676 | ||
677 | default: | |
678 | return 0; | |
679 | } | |
680 | } | |
681 | ||
9aaf880e FE |
682 | /* |
683 | * this submodule is responsible for the video data synchronization. | |
684 | * for example, for RGB 4:4:4 input, the data map is defined as | |
685 | * pin{47~40} <==> R[7:0] | |
686 | * pin{31~24} <==> G[7:0] | |
687 | * pin{15~8} <==> B[7:0] | |
688 | */ | |
b21f4b65 | 689 | static void hdmi_video_sample(struct dw_hdmi *hdmi) |
9aaf880e FE |
690 | { |
691 | int color_format = 0; | |
692 | u8 val; | |
693 | ||
def23aa7 NA |
694 | switch (hdmi->hdmi_data.enc_in_bus_format) { |
695 | case MEDIA_BUS_FMT_RGB888_1X24: | |
696 | color_format = 0x01; | |
697 | break; | |
698 | case MEDIA_BUS_FMT_RGB101010_1X30: | |
699 | color_format = 0x03; | |
700 | break; | |
701 | case MEDIA_BUS_FMT_RGB121212_1X36: | |
702 | color_format = 0x05; | |
703 | break; | |
704 | case MEDIA_BUS_FMT_RGB161616_1X48: | |
705 | color_format = 0x07; | |
706 | break; | |
707 | ||
708 | case MEDIA_BUS_FMT_YUV8_1X24: | |
709 | case MEDIA_BUS_FMT_UYYVYY8_0_5X24: | |
710 | color_format = 0x09; | |
711 | break; | |
712 | case MEDIA_BUS_FMT_YUV10_1X30: | |
713 | case MEDIA_BUS_FMT_UYYVYY10_0_5X30: | |
714 | color_format = 0x0B; | |
715 | break; | |
716 | case MEDIA_BUS_FMT_YUV12_1X36: | |
717 | case MEDIA_BUS_FMT_UYYVYY12_0_5X36: | |
718 | color_format = 0x0D; | |
719 | break; | |
720 | case MEDIA_BUS_FMT_YUV16_1X48: | |
721 | case MEDIA_BUS_FMT_UYYVYY16_0_5X48: | |
722 | color_format = 0x0F; | |
723 | break; | |
724 | ||
725 | case MEDIA_BUS_FMT_UYVY8_1X16: | |
726 | color_format = 0x16; | |
727 | break; | |
728 | case MEDIA_BUS_FMT_UYVY10_1X20: | |
729 | color_format = 0x14; | |
730 | break; | |
731 | case MEDIA_BUS_FMT_UYVY12_1X24: | |
732 | color_format = 0x12; | |
733 | break; | |
734 | ||
735 | default: | |
736 | return; | |
9aaf880e FE |
737 | } |
738 | ||
739 | val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE | | |
740 | ((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) & | |
741 | HDMI_TX_INVID0_VIDEO_MAPPING_MASK); | |
742 | hdmi_writeb(hdmi, val, HDMI_TX_INVID0); | |
743 | ||
744 | /* Enable TX stuffing: When DE is inactive, fix the output data to 0 */ | |
745 | val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE | | |
746 | HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE | | |
747 | HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE; | |
748 | hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING); | |
749 | hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0); | |
750 | hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1); | |
751 | hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0); | |
752 | hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1); | |
753 | hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0); | |
754 | hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1); | |
755 | } | |
756 | ||
b21f4b65 | 757 | static int is_color_space_conversion(struct dw_hdmi *hdmi) |
9aaf880e | 758 | { |
def23aa7 | 759 | return hdmi->hdmi_data.enc_in_bus_format != hdmi->hdmi_data.enc_out_bus_format; |
9aaf880e FE |
760 | } |
761 | ||
b21f4b65 | 762 | static int is_color_space_decimation(struct dw_hdmi *hdmi) |
9aaf880e | 763 | { |
def23aa7 | 764 | if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) |
ba92b225 | 765 | return 0; |
def23aa7 NA |
766 | |
767 | if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format) || | |
768 | hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_in_bus_format)) | |
ba92b225 | 769 | return 1; |
def23aa7 | 770 | |
ba92b225 | 771 | return 0; |
9aaf880e FE |
772 | } |
773 | ||
b21f4b65 | 774 | static int is_color_space_interpolation(struct dw_hdmi *hdmi) |
9aaf880e | 775 | { |
def23aa7 | 776 | if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_in_bus_format)) |
ba92b225 | 777 | return 0; |
def23aa7 NA |
778 | |
779 | if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) || | |
780 | hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format)) | |
ba92b225 | 781 | return 1; |
def23aa7 | 782 | |
ba92b225 | 783 | return 0; |
9aaf880e FE |
784 | } |
785 | ||
b21f4b65 | 786 | static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi) |
9aaf880e FE |
787 | { |
788 | const u16 (*csc_coeff)[3][4] = &csc_coeff_default; | |
c082f9d7 | 789 | unsigned i; |
9aaf880e | 790 | u32 csc_scale = 1; |
9aaf880e FE |
791 | |
792 | if (is_color_space_conversion(hdmi)) { | |
def23aa7 NA |
793 | if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) { |
794 | if (hdmi->hdmi_data.enc_out_encoding == | |
795 | V4L2_YCBCR_ENC_601) | |
9aaf880e FE |
796 | csc_coeff = &csc_coeff_rgb_out_eitu601; |
797 | else | |
798 | csc_coeff = &csc_coeff_rgb_out_eitu709; | |
def23aa7 NA |
799 | } else if (hdmi_bus_fmt_is_rgb( |
800 | hdmi->hdmi_data.enc_in_bus_format)) { | |
801 | if (hdmi->hdmi_data.enc_out_encoding == | |
802 | V4L2_YCBCR_ENC_601) | |
9aaf880e FE |
803 | csc_coeff = &csc_coeff_rgb_in_eitu601; |
804 | else | |
805 | csc_coeff = &csc_coeff_rgb_in_eitu709; | |
806 | csc_scale = 0; | |
807 | } | |
808 | } | |
809 | ||
c082f9d7 RK |
810 | /* The CSC registers are sequential, alternating MSB then LSB */ |
811 | for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) { | |
812 | u16 coeff_a = (*csc_coeff)[0][i]; | |
813 | u16 coeff_b = (*csc_coeff)[1][i]; | |
814 | u16 coeff_c = (*csc_coeff)[2][i]; | |
815 | ||
b5878339 | 816 | hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2); |
c082f9d7 RK |
817 | hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2); |
818 | hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2); | |
819 | hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2); | |
b5878339 | 820 | hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2); |
c082f9d7 RK |
821 | hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2); |
822 | } | |
9aaf880e | 823 | |
812bc615 RK |
824 | hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK, |
825 | HDMI_CSC_SCALE); | |
9aaf880e FE |
826 | } |
827 | ||
b21f4b65 | 828 | static void hdmi_video_csc(struct dw_hdmi *hdmi) |
9aaf880e FE |
829 | { |
830 | int color_depth = 0; | |
831 | int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE; | |
832 | int decimation = 0; | |
9aaf880e FE |
833 | |
834 | /* YCC422 interpolation to 444 mode */ | |
835 | if (is_color_space_interpolation(hdmi)) | |
836 | interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1; | |
837 | else if (is_color_space_decimation(hdmi)) | |
838 | decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3; | |
839 | ||
def23aa7 NA |
840 | switch (hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format)) { |
841 | case 8: | |
9aaf880e | 842 | color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP; |
def23aa7 NA |
843 | break; |
844 | case 10: | |
9aaf880e | 845 | color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP; |
def23aa7 NA |
846 | break; |
847 | case 12: | |
9aaf880e | 848 | color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP; |
def23aa7 NA |
849 | break; |
850 | case 16: | |
9aaf880e | 851 | color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP; |
def23aa7 NA |
852 | break; |
853 | ||
854 | default: | |
9aaf880e | 855 | return; |
def23aa7 | 856 | } |
9aaf880e FE |
857 | |
858 | /* Configure the CSC registers */ | |
859 | hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG); | |
812bc615 RK |
860 | hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK, |
861 | HDMI_CSC_SCALE); | |
9aaf880e | 862 | |
b21f4b65 | 863 | dw_hdmi_update_csc_coeffs(hdmi); |
9aaf880e FE |
864 | } |
865 | ||
866 | /* | |
867 | * HDMI video packetizer is used to packetize the data. | |
868 | * for example, if input is YCC422 mode or repeater is used, | |
869 | * data should be repacked this module can be bypassed. | |
870 | */ | |
b21f4b65 | 871 | static void hdmi_video_packetize(struct dw_hdmi *hdmi) |
9aaf880e FE |
872 | { |
873 | unsigned int color_depth = 0; | |
874 | unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit; | |
875 | unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP; | |
876 | struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data; | |
bebdf664 | 877 | u8 val, vp_conf; |
9aaf880e | 878 | |
def23aa7 NA |
879 | if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) || |
880 | hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format)) { | |
881 | switch (hdmi_bus_fmt_color_depth( | |
882 | hdmi->hdmi_data.enc_out_bus_format)) { | |
883 | case 8: | |
9aaf880e FE |
884 | color_depth = 4; |
885 | output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS; | |
def23aa7 NA |
886 | break; |
887 | case 10: | |
9aaf880e | 888 | color_depth = 5; |
def23aa7 NA |
889 | break; |
890 | case 12: | |
9aaf880e | 891 | color_depth = 6; |
def23aa7 NA |
892 | break; |
893 | case 16: | |
9aaf880e | 894 | color_depth = 7; |
def23aa7 NA |
895 | break; |
896 | default: | |
897 | output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS; | |
b5878339 | 898 | } |
def23aa7 NA |
899 | } else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) { |
900 | switch (hdmi_bus_fmt_color_depth( | |
901 | hdmi->hdmi_data.enc_out_bus_format)) { | |
902 | case 0: | |
903 | case 8: | |
9aaf880e | 904 | remap_size = HDMI_VP_REMAP_YCC422_16bit; |
def23aa7 NA |
905 | break; |
906 | case 10: | |
9aaf880e | 907 | remap_size = HDMI_VP_REMAP_YCC422_20bit; |
def23aa7 NA |
908 | break; |
909 | case 12: | |
9aaf880e | 910 | remap_size = HDMI_VP_REMAP_YCC422_24bit; |
def23aa7 NA |
911 | break; |
912 | ||
913 | default: | |
9aaf880e | 914 | return; |
def23aa7 | 915 | } |
9aaf880e | 916 | output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422; |
b5878339 | 917 | } else { |
9aaf880e | 918 | return; |
b5878339 | 919 | } |
9aaf880e FE |
920 | |
921 | /* set the packetizer registers */ | |
922 | val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) & | |
923 | HDMI_VP_PR_CD_COLOR_DEPTH_MASK) | | |
924 | ((hdmi_data->pix_repet_factor << | |
925 | HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET) & | |
926 | HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK); | |
927 | hdmi_writeb(hdmi, val, HDMI_VP_PR_CD); | |
928 | ||
812bc615 RK |
929 | hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE, |
930 | HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF); | |
9aaf880e FE |
931 | |
932 | /* Data from pixel repeater block */ | |
933 | if (hdmi_data->pix_repet_factor > 1) { | |
bebdf664 RK |
934 | vp_conf = HDMI_VP_CONF_PR_EN_ENABLE | |
935 | HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER; | |
9aaf880e | 936 | } else { /* data from packetizer block */ |
bebdf664 RK |
937 | vp_conf = HDMI_VP_CONF_PR_EN_DISABLE | |
938 | HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER; | |
9aaf880e FE |
939 | } |
940 | ||
bebdf664 RK |
941 | hdmi_modb(hdmi, vp_conf, |
942 | HDMI_VP_CONF_PR_EN_MASK | | |
943 | HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF); | |
944 | ||
812bc615 RK |
945 | hdmi_modb(hdmi, 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET, |
946 | HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, HDMI_VP_STUFF); | |
9aaf880e FE |
947 | |
948 | hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP); | |
949 | ||
950 | if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) { | |
bebdf664 RK |
951 | vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE | |
952 | HDMI_VP_CONF_PP_EN_ENABLE | | |
953 | HDMI_VP_CONF_YCC422_EN_DISABLE; | |
9aaf880e | 954 | } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) { |
bebdf664 RK |
955 | vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE | |
956 | HDMI_VP_CONF_PP_EN_DISABLE | | |
957 | HDMI_VP_CONF_YCC422_EN_ENABLE; | |
9aaf880e | 958 | } else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) { |
bebdf664 RK |
959 | vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE | |
960 | HDMI_VP_CONF_PP_EN_DISABLE | | |
961 | HDMI_VP_CONF_YCC422_EN_DISABLE; | |
9aaf880e FE |
962 | } else { |
963 | return; | |
964 | } | |
965 | ||
bebdf664 RK |
966 | hdmi_modb(hdmi, vp_conf, |
967 | HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK | | |
968 | HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF); | |
969 | ||
812bc615 RK |
970 | hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE | |
971 | HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE, | |
972 | HDMI_VP_STUFF_PP_STUFFING_MASK | | |
973 | HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF); | |
9aaf880e | 974 | |
812bc615 RK |
975 | hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK, |
976 | HDMI_VP_CONF); | |
9aaf880e FE |
977 | } |
978 | ||
f1585f6e LP |
979 | /* ----------------------------------------------------------------------------- |
980 | * Synopsys PHY Handling | |
981 | */ | |
982 | ||
b21f4b65 | 983 | static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi, |
b5878339 | 984 | unsigned char bit) |
9aaf880e | 985 | { |
812bc615 RK |
986 | hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET, |
987 | HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0); | |
9aaf880e FE |
988 | } |
989 | ||
b21f4b65 | 990 | static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec) |
9aaf880e | 991 | { |
a4d3b8b0 AY |
992 | u32 val; |
993 | ||
994 | while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) { | |
9aaf880e FE |
995 | if (msec-- == 0) |
996 | return false; | |
0e6bcf3a | 997 | udelay(1000); |
9aaf880e | 998 | } |
a4d3b8b0 AY |
999 | hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0); |
1000 | ||
9aaf880e FE |
1001 | return true; |
1002 | } | |
1003 | ||
2ef9dfed KB |
1004 | void dw_hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data, |
1005 | unsigned char addr) | |
9aaf880e FE |
1006 | { |
1007 | hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0); | |
1008 | hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR); | |
1009 | hdmi_writeb(hdmi, (unsigned char)(data >> 8), | |
b5878339 | 1010 | HDMI_PHY_I2CM_DATAO_1_ADDR); |
9aaf880e | 1011 | hdmi_writeb(hdmi, (unsigned char)(data >> 0), |
b5878339 | 1012 | HDMI_PHY_I2CM_DATAO_0_ADDR); |
9aaf880e | 1013 | hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE, |
b5878339 | 1014 | HDMI_PHY_I2CM_OPERATION_ADDR); |
9aaf880e FE |
1015 | hdmi_phy_wait_i2c_done(hdmi, 1000); |
1016 | } | |
2ef9dfed | 1017 | EXPORT_SYMBOL_GPL(dw_hdmi_phy_i2c_write); |
9aaf880e | 1018 | |
2fada109 | 1019 | static void dw_hdmi_phy_enable_powerdown(struct dw_hdmi *hdmi, bool enable) |
9aaf880e | 1020 | { |
2fada109 | 1021 | hdmi_mask_writeb(hdmi, !enable, HDMI_PHY_CONF0, |
9aaf880e FE |
1022 | HDMI_PHY_CONF0_PDZ_OFFSET, |
1023 | HDMI_PHY_CONF0_PDZ_MASK); | |
1024 | } | |
1025 | ||
b21f4b65 | 1026 | static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable) |
9aaf880e FE |
1027 | { |
1028 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
1029 | HDMI_PHY_CONF0_ENTMDS_OFFSET, | |
1030 | HDMI_PHY_CONF0_ENTMDS_MASK); | |
1031 | } | |
1032 | ||
f4104e8f | 1033 | static void dw_hdmi_phy_enable_svsret(struct dw_hdmi *hdmi, u8 enable) |
d346c14e AY |
1034 | { |
1035 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
f4104e8f LP |
1036 | HDMI_PHY_CONF0_SVSRET_OFFSET, |
1037 | HDMI_PHY_CONF0_SVSRET_MASK); | |
d346c14e AY |
1038 | } |
1039 | ||
b21f4b65 | 1040 | static void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable) |
9aaf880e FE |
1041 | { |
1042 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
1043 | HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET, | |
1044 | HDMI_PHY_CONF0_GEN2_PDDQ_MASK); | |
1045 | } | |
1046 | ||
b21f4b65 | 1047 | static void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable) |
9aaf880e FE |
1048 | { |
1049 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
1050 | HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET, | |
1051 | HDMI_PHY_CONF0_GEN2_TXPWRON_MASK); | |
1052 | } | |
1053 | ||
b21f4b65 | 1054 | static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable) |
9aaf880e FE |
1055 | { |
1056 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
1057 | HDMI_PHY_CONF0_SELDATAENPOL_OFFSET, | |
1058 | HDMI_PHY_CONF0_SELDATAENPOL_MASK); | |
1059 | } | |
1060 | ||
b21f4b65 | 1061 | static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable) |
9aaf880e FE |
1062 | { |
1063 | hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0, | |
1064 | HDMI_PHY_CONF0_SELDIPIF_OFFSET, | |
1065 | HDMI_PHY_CONF0_SELDIPIF_MASK); | |
1066 | } | |
1067 | ||
b0e583e5 LP |
1068 | static void dw_hdmi_phy_power_off(struct dw_hdmi *hdmi) |
1069 | { | |
f1585f6e | 1070 | const struct dw_hdmi_phy_data *phy = hdmi->phy.data; |
b0e583e5 LP |
1071 | unsigned int i; |
1072 | u16 val; | |
1073 | ||
1074 | if (phy->gen == 1) { | |
1075 | dw_hdmi_phy_enable_tmds(hdmi, 0); | |
1076 | dw_hdmi_phy_enable_powerdown(hdmi, true); | |
1077 | return; | |
1078 | } | |
1079 | ||
1080 | dw_hdmi_phy_gen2_txpwron(hdmi, 0); | |
1081 | ||
1082 | /* | |
1083 | * Wait for TX_PHY_LOCK to be deasserted to indicate that the PHY went | |
1084 | * to low power mode. | |
1085 | */ | |
1086 | for (i = 0; i < 5; ++i) { | |
1087 | val = hdmi_readb(hdmi, HDMI_PHY_STAT0); | |
1088 | if (!(val & HDMI_PHY_TX_PHY_LOCK)) | |
1089 | break; | |
1090 | ||
1091 | usleep_range(1000, 2000); | |
1092 | } | |
1093 | ||
1094 | if (val & HDMI_PHY_TX_PHY_LOCK) | |
1095 | dev_warn(hdmi->dev, "PHY failed to power down\n"); | |
1096 | else | |
1097 | dev_dbg(hdmi->dev, "PHY powered down in %u iterations\n", i); | |
1098 | ||
1099 | dw_hdmi_phy_gen2_pddq(hdmi, 1); | |
1100 | } | |
1101 | ||
181e0ef0 LP |
1102 | static int dw_hdmi_phy_power_on(struct dw_hdmi *hdmi) |
1103 | { | |
f1585f6e | 1104 | const struct dw_hdmi_phy_data *phy = hdmi->phy.data; |
181e0ef0 LP |
1105 | unsigned int i; |
1106 | u8 val; | |
1107 | ||
1108 | if (phy->gen == 1) { | |
1109 | dw_hdmi_phy_enable_powerdown(hdmi, false); | |
1110 | ||
1111 | /* Toggle TMDS enable. */ | |
1112 | dw_hdmi_phy_enable_tmds(hdmi, 0); | |
1113 | dw_hdmi_phy_enable_tmds(hdmi, 1); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | dw_hdmi_phy_gen2_txpwron(hdmi, 1); | |
1118 | dw_hdmi_phy_gen2_pddq(hdmi, 0); | |
1119 | ||
1120 | /* Wait for PHY PLL lock */ | |
1121 | for (i = 0; i < 5; ++i) { | |
1122 | val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK; | |
1123 | if (val) | |
1124 | break; | |
1125 | ||
1126 | usleep_range(1000, 2000); | |
1127 | } | |
1128 | ||
1129 | if (!val) { | |
1130 | dev_err(hdmi->dev, "PHY PLL failed to lock\n"); | |
1131 | return -ETIMEDOUT; | |
1132 | } | |
1133 | ||
1134 | dev_dbg(hdmi->dev, "PHY PLL locked %u iterations\n", i); | |
1135 | return 0; | |
1136 | } | |
1137 | ||
2ef9dfed KB |
1138 | /* |
1139 | * PHY configuration function for the DWC HDMI 3D TX PHY. Based on the available | |
1140 | * information the DWC MHL PHY has the same register layout and is thus also | |
1141 | * supported by this function. | |
1142 | */ | |
1143 | static int hdmi_phy_configure_dwc_hdmi_3d_tx(struct dw_hdmi *hdmi, | |
1144 | const struct dw_hdmi_plat_data *pdata, | |
1145 | unsigned long mpixelclock) | |
9aaf880e | 1146 | { |
39cc1535 RK |
1147 | const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg; |
1148 | const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr; | |
1149 | const struct dw_hdmi_phy_config *phy_config = pdata->phy_config; | |
9aaf880e | 1150 | |
39cc1535 RK |
1151 | /* PLL/MPLL Cfg - always match on final entry */ |
1152 | for (; mpll_config->mpixelclock != ~0UL; mpll_config++) | |
2ef9dfed | 1153 | if (mpixelclock <= mpll_config->mpixelclock) |
39cc1535 RK |
1154 | break; |
1155 | ||
1156 | for (; curr_ctrl->mpixelclock != ~0UL; curr_ctrl++) | |
2ef9dfed | 1157 | if (mpixelclock <= curr_ctrl->mpixelclock) |
39cc1535 RK |
1158 | break; |
1159 | ||
1160 | for (; phy_config->mpixelclock != ~0UL; phy_config++) | |
2ef9dfed | 1161 | if (mpixelclock <= phy_config->mpixelclock) |
39cc1535 RK |
1162 | break; |
1163 | ||
1164 | if (mpll_config->mpixelclock == ~0UL || | |
1165 | curr_ctrl->mpixelclock == ~0UL || | |
2ef9dfed | 1166 | phy_config->mpixelclock == ~0UL) |
39cc1535 | 1167 | return -EINVAL; |
2ef9dfed KB |
1168 | |
1169 | dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[0].cpce, | |
1170 | HDMI_3D_TX_PHY_CPCE_CTRL); | |
1171 | dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[0].gmp, | |
1172 | HDMI_3D_TX_PHY_GMPCTRL); | |
1173 | dw_hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[0], | |
1174 | HDMI_3D_TX_PHY_CURRCTRL); | |
1175 | ||
1176 | dw_hdmi_phy_i2c_write(hdmi, 0, HDMI_3D_TX_PHY_PLLPHBYCTRL); | |
1177 | dw_hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK, | |
1178 | HDMI_3D_TX_PHY_MSM_CTRL); | |
1179 | ||
1180 | dw_hdmi_phy_i2c_write(hdmi, phy_config->term, HDMI_3D_TX_PHY_TXTERM); | |
1181 | dw_hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr, | |
1182 | HDMI_3D_TX_PHY_CKSYMTXCTRL); | |
1183 | dw_hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr, | |
1184 | HDMI_3D_TX_PHY_VLEVCTRL); | |
1185 | ||
1186 | /* Override and disable clock termination. */ | |
1187 | dw_hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_CKCALCTRL_OVERRIDE, | |
1188 | HDMI_3D_TX_PHY_CKCALCTRL); | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
1193 | static int hdmi_phy_configure(struct dw_hdmi *hdmi) | |
1194 | { | |
1195 | const struct dw_hdmi_phy_data *phy = hdmi->phy.data; | |
1196 | const struct dw_hdmi_plat_data *pdata = hdmi->plat_data; | |
1197 | unsigned long mpixelclock = hdmi->hdmi_data.video_mode.mpixelclock; | |
1198 | int ret; | |
39cc1535 | 1199 | |
b0e583e5 | 1200 | dw_hdmi_phy_power_off(hdmi); |
9aaf880e | 1201 | |
2668db37 | 1202 | /* Leave low power consumption mode by asserting SVSRET. */ |
f1585f6e | 1203 | if (phy->has_svsret) |
2668db37 LP |
1204 | dw_hdmi_phy_enable_svsret(hdmi, 1); |
1205 | ||
54d72737 LP |
1206 | /* PHY reset. The reset signal is active high on Gen2 PHYs. */ |
1207 | hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_PHYRSTZ, HDMI_MC_PHYRSTZ); | |
1208 | hdmi_writeb(hdmi, 0, HDMI_MC_PHYRSTZ); | |
9aaf880e FE |
1209 | |
1210 | hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST); | |
1211 | ||
1212 | hdmi_phy_test_clear(hdmi, 1); | |
1213 | hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2, | |
b5878339 | 1214 | HDMI_PHY_I2CM_SLAVE_ADDR); |
9aaf880e FE |
1215 | hdmi_phy_test_clear(hdmi, 0); |
1216 | ||
2ef9dfed KB |
1217 | /* Write to the PHY as configured by the platform */ |
1218 | if (pdata->configure_phy) | |
1219 | ret = pdata->configure_phy(hdmi, pdata, mpixelclock); | |
1220 | else | |
1221 | ret = phy->configure(hdmi, pdata, mpixelclock); | |
1222 | if (ret) { | |
1223 | dev_err(hdmi->dev, "PHY configuration failed (clock %lu)\n", | |
1224 | mpixelclock); | |
1225 | return ret; | |
1226 | } | |
9aaf880e | 1227 | |
181e0ef0 | 1228 | return dw_hdmi_phy_power_on(hdmi); |
9aaf880e FE |
1229 | } |
1230 | ||
f1585f6e LP |
1231 | static int dw_hdmi_phy_init(struct dw_hdmi *hdmi, void *data, |
1232 | struct drm_display_mode *mode) | |
9aaf880e FE |
1233 | { |
1234 | int i, ret; | |
9aaf880e FE |
1235 | |
1236 | /* HDMI Phy spec says to do the phy initialization sequence twice */ | |
1237 | for (i = 0; i < 2; i++) { | |
b21f4b65 AY |
1238 | dw_hdmi_phy_sel_data_en_pol(hdmi, 1); |
1239 | dw_hdmi_phy_sel_interface_control(hdmi, 0); | |
9aaf880e | 1240 | |
8b9e1c0d | 1241 | ret = hdmi_phy_configure(hdmi); |
9aaf880e FE |
1242 | if (ret) |
1243 | return ret; | |
1244 | } | |
1245 | ||
9aaf880e FE |
1246 | return 0; |
1247 | } | |
1248 | ||
f1585f6e LP |
1249 | static void dw_hdmi_phy_disable(struct dw_hdmi *hdmi, void *data) |
1250 | { | |
1251 | dw_hdmi_phy_power_off(hdmi); | |
1252 | } | |
1253 | ||
1254 | static enum drm_connector_status dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi, | |
1255 | void *data) | |
1256 | { | |
1257 | return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ? | |
1258 | connector_status_connected : connector_status_disconnected; | |
1259 | } | |
1260 | ||
386d3299 NA |
1261 | static void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data, |
1262 | bool force, bool disabled, bool rxsense) | |
1263 | { | |
1264 | u8 old_mask = hdmi->phy_mask; | |
1265 | ||
1266 | if (force || disabled || !rxsense) | |
1267 | hdmi->phy_mask |= HDMI_PHY_RX_SENSE; | |
1268 | else | |
1269 | hdmi->phy_mask &= ~HDMI_PHY_RX_SENSE; | |
1270 | ||
1271 | if (old_mask != hdmi->phy_mask) | |
1272 | hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0); | |
1273 | } | |
1274 | ||
1275 | static void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data) | |
1276 | { | |
1277 | /* | |
1278 | * Configure the PHY RX SENSE and HPD interrupts polarities and clear | |
1279 | * any pending interrupt. | |
1280 | */ | |
1281 | hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0); | |
1282 | hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, | |
1283 | HDMI_IH_PHY_STAT0); | |
1284 | ||
1285 | /* Enable cable hot plug irq. */ | |
1286 | hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0); | |
1287 | ||
1288 | /* Clear and unmute interrupts. */ | |
1289 | hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE, | |
1290 | HDMI_IH_PHY_STAT0); | |
1291 | hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE), | |
1292 | HDMI_IH_MUTE_PHY_STAT0); | |
1293 | } | |
1294 | ||
f1585f6e LP |
1295 | static const struct dw_hdmi_phy_ops dw_hdmi_synopsys_phy_ops = { |
1296 | .init = dw_hdmi_phy_init, | |
1297 | .disable = dw_hdmi_phy_disable, | |
1298 | .read_hpd = dw_hdmi_phy_read_hpd, | |
386d3299 NA |
1299 | .update_hpd = dw_hdmi_phy_update_hpd, |
1300 | .setup_hpd = dw_hdmi_phy_setup_hpd, | |
f1585f6e LP |
1301 | }; |
1302 | ||
1303 | /* ----------------------------------------------------------------------------- | |
1304 | * HDMI TX Setup | |
1305 | */ | |
1306 | ||
b21f4b65 | 1307 | static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi) |
9aaf880e | 1308 | { |
812bc615 | 1309 | u8 de; |
9aaf880e FE |
1310 | |
1311 | if (hdmi->hdmi_data.video_mode.mdataenablepolarity) | |
1312 | de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH; | |
1313 | else | |
1314 | de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW; | |
1315 | ||
1316 | /* disable rx detect */ | |
812bc615 RK |
1317 | hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_DISABLE, |
1318 | HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0); | |
9aaf880e | 1319 | |
812bc615 | 1320 | hdmi_modb(hdmi, de, HDMI_A_VIDPOLCFG_DATAENPOL_MASK, HDMI_A_VIDPOLCFG); |
9aaf880e | 1321 | |
812bc615 RK |
1322 | hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE, |
1323 | HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1); | |
9aaf880e FE |
1324 | } |
1325 | ||
d4ac4cb6 | 1326 | static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode) |
9aaf880e | 1327 | { |
d4ac4cb6 RK |
1328 | struct hdmi_avi_infoframe frame; |
1329 | u8 val; | |
9aaf880e | 1330 | |
d4ac4cb6 | 1331 | /* Initialise info frame from DRM mode */ |
0c1f528c | 1332 | drm_hdmi_avi_infoframe_from_display_mode(&frame, mode, false); |
9aaf880e | 1333 | |
def23aa7 | 1334 | if (hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format)) |
d4ac4cb6 | 1335 | frame.colorspace = HDMI_COLORSPACE_YUV444; |
def23aa7 | 1336 | else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) |
d4ac4cb6 | 1337 | frame.colorspace = HDMI_COLORSPACE_YUV422; |
9aaf880e | 1338 | else |
d4ac4cb6 | 1339 | frame.colorspace = HDMI_COLORSPACE_RGB; |
9aaf880e FE |
1340 | |
1341 | /* Set up colorimetry */ | |
def23aa7 NA |
1342 | switch (hdmi->hdmi_data.enc_out_encoding) { |
1343 | case V4L2_YCBCR_ENC_601: | |
1344 | if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601) | |
1345 | frame.colorimetry = HDMI_COLORIMETRY_EXTENDED; | |
1346 | else | |
1347 | frame.colorimetry = HDMI_COLORIMETRY_ITU_601; | |
1348 | frame.extended_colorimetry = | |
d4ac4cb6 | 1349 | HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; |
f40d6560 | 1350 | break; |
def23aa7 NA |
1351 | case V4L2_YCBCR_ENC_709: |
1352 | if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709) | |
1353 | frame.colorimetry = HDMI_COLORIMETRY_EXTENDED; | |
1354 | else | |
1355 | frame.colorimetry = HDMI_COLORIMETRY_ITU_709; | |
1356 | frame.extended_colorimetry = | |
d4ac4cb6 | 1357 | HDMI_EXTENDED_COLORIMETRY_XV_YCC_709; |
def23aa7 NA |
1358 | break; |
1359 | default: /* Carries no data */ | |
1360 | frame.colorimetry = HDMI_COLORIMETRY_ITU_601; | |
1361 | frame.extended_colorimetry = | |
1362 | HDMI_EXTENDED_COLORIMETRY_XV_YCC_601; | |
1363 | break; | |
9aaf880e FE |
1364 | } |
1365 | ||
d4ac4cb6 RK |
1366 | frame.scan_mode = HDMI_SCAN_MODE_NONE; |
1367 | ||
1368 | /* | |
1369 | * The Designware IP uses a different byte format from standard | |
1370 | * AVI info frames, though generally the bits are in the correct | |
1371 | * bytes. | |
1372 | */ | |
1373 | ||
1374 | /* | |
b0118e7d JA |
1375 | * AVI data byte 1 differences: Colorspace in bits 0,1 rather than 5,6, |
1376 | * scan info in bits 4,5 rather than 0,1 and active aspect present in | |
1377 | * bit 6 rather than 4. | |
d4ac4cb6 | 1378 | */ |
b0118e7d | 1379 | val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 3); |
d4ac4cb6 RK |
1380 | if (frame.active_aspect & 15) |
1381 | val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT; | |
1382 | if (frame.top_bar || frame.bottom_bar) | |
1383 | val |= HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR; | |
1384 | if (frame.left_bar || frame.right_bar) | |
1385 | val |= HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR; | |
1386 | hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0); | |
1387 | ||
1388 | /* AVI data byte 2 differences: none */ | |
1389 | val = ((frame.colorimetry & 0x3) << 6) | | |
1390 | ((frame.picture_aspect & 0x3) << 4) | | |
1391 | (frame.active_aspect & 0xf); | |
9aaf880e FE |
1392 | hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1); |
1393 | ||
d4ac4cb6 RK |
1394 | /* AVI data byte 3 differences: none */ |
1395 | val = ((frame.extended_colorimetry & 0x7) << 4) | | |
1396 | ((frame.quantization_range & 0x3) << 2) | | |
1397 | (frame.nups & 0x3); | |
1398 | if (frame.itc) | |
1399 | val |= HDMI_FC_AVICONF2_IT_CONTENT_VALID; | |
9aaf880e FE |
1400 | hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2); |
1401 | ||
d4ac4cb6 RK |
1402 | /* AVI data byte 4 differences: none */ |
1403 | val = frame.video_code & 0x7f; | |
1404 | hdmi_writeb(hdmi, val, HDMI_FC_AVIVID); | |
9aaf880e FE |
1405 | |
1406 | /* AVI Data Byte 5- set up input and output pixel repetition */ | |
1407 | val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) << | |
1408 | HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) & | |
1409 | HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) | | |
1410 | ((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput << | |
1411 | HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) & | |
1412 | HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK); | |
1413 | hdmi_writeb(hdmi, val, HDMI_FC_PRCONF); | |
1414 | ||
d4ac4cb6 RK |
1415 | /* |
1416 | * AVI data byte 5 differences: content type in 0,1 rather than 4,5, | |
1417 | * ycc range in bits 2,3 rather than 6,7 | |
1418 | */ | |
1419 | val = ((frame.ycc_quantization_range & 0x3) << 2) | | |
1420 | (frame.content_type & 0x3); | |
9aaf880e FE |
1421 | hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3); |
1422 | ||
1423 | /* AVI Data Bytes 6-13 */ | |
d4ac4cb6 RK |
1424 | hdmi_writeb(hdmi, frame.top_bar & 0xff, HDMI_FC_AVIETB0); |
1425 | hdmi_writeb(hdmi, (frame.top_bar >> 8) & 0xff, HDMI_FC_AVIETB1); | |
1426 | hdmi_writeb(hdmi, frame.bottom_bar & 0xff, HDMI_FC_AVISBB0); | |
1427 | hdmi_writeb(hdmi, (frame.bottom_bar >> 8) & 0xff, HDMI_FC_AVISBB1); | |
1428 | hdmi_writeb(hdmi, frame.left_bar & 0xff, HDMI_FC_AVIELB0); | |
1429 | hdmi_writeb(hdmi, (frame.left_bar >> 8) & 0xff, HDMI_FC_AVIELB1); | |
1430 | hdmi_writeb(hdmi, frame.right_bar & 0xff, HDMI_FC_AVISRB0); | |
1431 | hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1); | |
9aaf880e FE |
1432 | } |
1433 | ||
9aa1eca0 NY |
1434 | static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi, |
1435 | struct drm_display_mode *mode) | |
1436 | { | |
1437 | struct hdmi_vendor_infoframe frame; | |
1438 | u8 buffer[10]; | |
1439 | ssize_t err; | |
1440 | ||
1441 | err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode); | |
1442 | if (err < 0) | |
1443 | /* | |
1444 | * Going into that statement does not means vendor infoframe | |
1445 | * fails. It just informed us that vendor infoframe is not | |
1446 | * needed for the selected mode. Only 4k or stereoscopic 3D | |
1447 | * mode requires vendor infoframe. So just simply return. | |
1448 | */ | |
1449 | return; | |
1450 | ||
1451 | err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer)); | |
1452 | if (err < 0) { | |
1453 | dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n", | |
1454 | err); | |
1455 | return; | |
1456 | } | |
1457 | hdmi_mask_writeb(hdmi, 0, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET, | |
1458 | HDMI_FC_DATAUTO0_VSD_MASK); | |
1459 | ||
1460 | /* Set the length of HDMI vendor specific InfoFrame payload */ | |
1461 | hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE); | |
1462 | ||
1463 | /* Set 24bit IEEE Registration Identifier */ | |
1464 | hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0); | |
1465 | hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1); | |
1466 | hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2); | |
1467 | ||
1468 | /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */ | |
1469 | hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0); | |
1470 | hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1); | |
1471 | ||
1472 | if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF) | |
1473 | hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2); | |
1474 | ||
1475 | /* Packet frame interpolation */ | |
1476 | hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1); | |
1477 | ||
1478 | /* Auto packets per frame and line spacing */ | |
1479 | hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2); | |
1480 | ||
1481 | /* Configures the Frame Composer On RDRB mode */ | |
1482 | hdmi_mask_writeb(hdmi, 1, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET, | |
1483 | HDMI_FC_DATAUTO0_VSD_MASK); | |
1484 | } | |
1485 | ||
b21f4b65 | 1486 | static void hdmi_av_composer(struct dw_hdmi *hdmi, |
9aaf880e FE |
1487 | const struct drm_display_mode *mode) |
1488 | { | |
1489 | u8 inv_val; | |
1490 | struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode; | |
1491 | int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len; | |
e80b9f4e | 1492 | unsigned int vdisplay; |
9aaf880e | 1493 | |
9aaf880e FE |
1494 | vmode->mpixelclock = mode->clock * 1000; |
1495 | ||
1496 | dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock); | |
1497 | ||
1498 | /* Set up HDMI_FC_INVIDCONF */ | |
1499 | inv_val = (hdmi->hdmi_data.hdcp_enable ? | |
1500 | HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE : | |
1501 | HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE); | |
1502 | ||
b91eee8c | 1503 | inv_val |= mode->flags & DRM_MODE_FLAG_PVSYNC ? |
9aaf880e | 1504 | HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH : |
b91eee8c | 1505 | HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW; |
9aaf880e | 1506 | |
b91eee8c | 1507 | inv_val |= mode->flags & DRM_MODE_FLAG_PHSYNC ? |
9aaf880e | 1508 | HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH : |
b91eee8c | 1509 | HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW; |
9aaf880e FE |
1510 | |
1511 | inv_val |= (vmode->mdataenablepolarity ? | |
1512 | HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH : | |
1513 | HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW); | |
1514 | ||
1515 | if (hdmi->vic == 39) | |
1516 | inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH; | |
1517 | else | |
b91eee8c | 1518 | inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ? |
9aaf880e | 1519 | HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH : |
b91eee8c | 1520 | HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW; |
9aaf880e | 1521 | |
b91eee8c | 1522 | inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ? |
9aaf880e | 1523 | HDMI_FC_INVIDCONF_IN_I_P_INTERLACED : |
b91eee8c | 1524 | HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE; |
9aaf880e | 1525 | |
05b1342f RK |
1526 | inv_val |= hdmi->sink_is_hdmi ? |
1527 | HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE : | |
1528 | HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE; | |
9aaf880e FE |
1529 | |
1530 | hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF); | |
1531 | ||
e80b9f4e RK |
1532 | vdisplay = mode->vdisplay; |
1533 | vblank = mode->vtotal - mode->vdisplay; | |
1534 | v_de_vs = mode->vsync_start - mode->vdisplay; | |
1535 | vsync_len = mode->vsync_end - mode->vsync_start; | |
1536 | ||
1537 | /* | |
1538 | * When we're setting an interlaced mode, we need | |
1539 | * to adjust the vertical timing to suit. | |
1540 | */ | |
1541 | if (mode->flags & DRM_MODE_FLAG_INTERLACE) { | |
1542 | vdisplay /= 2; | |
1543 | vblank /= 2; | |
1544 | v_de_vs /= 2; | |
1545 | vsync_len /= 2; | |
1546 | } | |
1547 | ||
9aaf880e FE |
1548 | /* Set up horizontal active pixel width */ |
1549 | hdmi_writeb(hdmi, mode->hdisplay >> 8, HDMI_FC_INHACTV1); | |
1550 | hdmi_writeb(hdmi, mode->hdisplay, HDMI_FC_INHACTV0); | |
1551 | ||
1552 | /* Set up vertical active lines */ | |
e80b9f4e RK |
1553 | hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1); |
1554 | hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0); | |
9aaf880e FE |
1555 | |
1556 | /* Set up horizontal blanking pixel region width */ | |
1557 | hblank = mode->htotal - mode->hdisplay; | |
1558 | hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1); | |
1559 | hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0); | |
1560 | ||
1561 | /* Set up vertical blanking pixel region width */ | |
9aaf880e FE |
1562 | hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK); |
1563 | ||
1564 | /* Set up HSYNC active edge delay width (in pixel clks) */ | |
1565 | h_de_hs = mode->hsync_start - mode->hdisplay; | |
1566 | hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1); | |
1567 | hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0); | |
1568 | ||
1569 | /* Set up VSYNC active edge delay (in lines) */ | |
9aaf880e FE |
1570 | hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY); |
1571 | ||
1572 | /* Set up HSYNC active pulse width (in pixel clks) */ | |
1573 | hsync_len = mode->hsync_end - mode->hsync_start; | |
1574 | hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1); | |
1575 | hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0); | |
1576 | ||
1577 | /* Set up VSYNC active edge delay (in lines) */ | |
9aaf880e FE |
1578 | hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH); |
1579 | } | |
1580 | ||
9aaf880e | 1581 | /* HDMI Initialization Step B.4 */ |
b21f4b65 | 1582 | static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi) |
9aaf880e | 1583 | { |
9aaf880e FE |
1584 | /* control period minimum duration */ |
1585 | hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR); | |
1586 | hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR); | |
1587 | hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC); | |
1588 | ||
1589 | /* Set to fill TMDS data channels */ | |
1590 | hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM); | |
1591 | hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM); | |
1592 | hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM); | |
1593 | ||
1594 | /* Enable pixel clock and tmds data path */ | |
7cc4ab22 RK |
1595 | hdmi->mc_clkdis |= HDMI_MC_CLKDIS_HDCPCLK_DISABLE | |
1596 | HDMI_MC_CLKDIS_CSCCLK_DISABLE | | |
1597 | HDMI_MC_CLKDIS_AUDCLK_DISABLE | | |
1598 | HDMI_MC_CLKDIS_PREPCLK_DISABLE | | |
1599 | HDMI_MC_CLKDIS_TMDSCLK_DISABLE; | |
1600 | hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE; | |
1601 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
9aaf880e | 1602 | |
7cc4ab22 RK |
1603 | hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE; |
1604 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
9aaf880e FE |
1605 | |
1606 | /* Enable csc path */ | |
1607 | if (is_color_space_conversion(hdmi)) { | |
7cc4ab22 RK |
1608 | hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE; |
1609 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
9aaf880e | 1610 | } |
8b9e1c0d | 1611 | |
14247d7c NA |
1612 | /* Enable color space conversion if needed */ |
1613 | if (is_color_space_conversion(hdmi)) | |
8b9e1c0d LP |
1614 | hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH, |
1615 | HDMI_MC_FLOWCTRL); | |
1616 | else | |
1617 | hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS, | |
1618 | HDMI_MC_FLOWCTRL); | |
9aaf880e FE |
1619 | } |
1620 | ||
9aaf880e | 1621 | /* Workaround to clear the overflow condition */ |
b21f4b65 | 1622 | static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi) |
9aaf880e | 1623 | { |
be41fc55 LP |
1624 | unsigned int count; |
1625 | unsigned int i; | |
9aaf880e FE |
1626 | u8 val; |
1627 | ||
be41fc55 LP |
1628 | /* |
1629 | * Under some circumstances the Frame Composer arithmetic unit can miss | |
1630 | * an FC register write due to being busy processing the previous one. | |
1631 | * The issue can be worked around by issuing a TMDS software reset and | |
1632 | * then write one of the FC registers several times. | |
1633 | * | |
1634 | * The number of iterations matters and depends on the HDMI TX revision | |
1635 | * (and possibly on the platform). So far only i.MX6Q (v1.30a) and | |
1636 | * i.MX6DL (v1.31a) have been identified as needing the workaround, with | |
1637 | * 4 and 1 iterations respectively. | |
1638 | */ | |
9aaf880e | 1639 | |
be41fc55 LP |
1640 | switch (hdmi->version) { |
1641 | case 0x130a: | |
1642 | count = 4; | |
1643 | break; | |
1644 | case 0x131a: | |
1645 | count = 1; | |
1646 | break; | |
1647 | default: | |
9aaf880e FE |
1648 | return; |
1649 | } | |
1650 | ||
be41fc55 LP |
1651 | /* TMDS software reset */ |
1652 | hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ); | |
1653 | ||
1654 | val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF); | |
1655 | for (i = 0; i < count; i++) | |
9aaf880e FE |
1656 | hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF); |
1657 | } | |
1658 | ||
b21f4b65 | 1659 | static void hdmi_enable_overflow_interrupts(struct dw_hdmi *hdmi) |
9aaf880e FE |
1660 | { |
1661 | hdmi_writeb(hdmi, 0, HDMI_FC_MASK2); | |
1662 | hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2); | |
1663 | } | |
1664 | ||
b21f4b65 | 1665 | static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi) |
9aaf880e FE |
1666 | { |
1667 | hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK, | |
1668 | HDMI_IH_MUTE_FC_STAT2); | |
1669 | } | |
1670 | ||
b21f4b65 | 1671 | static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode) |
9aaf880e FE |
1672 | { |
1673 | int ret; | |
1674 | ||
1675 | hdmi_disable_overflow_interrupts(hdmi); | |
1676 | ||
1677 | hdmi->vic = drm_match_cea_mode(mode); | |
1678 | ||
1679 | if (!hdmi->vic) { | |
1680 | dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n"); | |
9aaf880e FE |
1681 | } else { |
1682 | dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic); | |
9aaf880e FE |
1683 | } |
1684 | ||
1685 | if ((hdmi->vic == 6) || (hdmi->vic == 7) || | |
b5878339 AY |
1686 | (hdmi->vic == 21) || (hdmi->vic == 22) || |
1687 | (hdmi->vic == 2) || (hdmi->vic == 3) || | |
1688 | (hdmi->vic == 17) || (hdmi->vic == 18)) | |
def23aa7 | 1689 | hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_601; |
9aaf880e | 1690 | else |
def23aa7 | 1691 | hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_709; |
9aaf880e | 1692 | |
d10ca826 | 1693 | hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0; |
9aaf880e FE |
1694 | hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0; |
1695 | ||
def23aa7 | 1696 | /* TOFIX: Get input format from plat data or fallback to RGB888 */ |
e20c29aa | 1697 | if (hdmi->plat_data->input_bus_format) |
def23aa7 NA |
1698 | hdmi->hdmi_data.enc_in_bus_format = |
1699 | hdmi->plat_data->input_bus_format; | |
1700 | else | |
1701 | hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_RGB888_1X24; | |
1702 | ||
1703 | /* TOFIX: Get input encoding from plat data or fallback to none */ | |
e20c29aa | 1704 | if (hdmi->plat_data->input_bus_encoding) |
def23aa7 NA |
1705 | hdmi->hdmi_data.enc_in_encoding = |
1706 | hdmi->plat_data->input_bus_encoding; | |
1707 | else | |
1708 | hdmi->hdmi_data.enc_in_encoding = V4L2_YCBCR_ENC_DEFAULT; | |
9aaf880e | 1709 | |
def23aa7 NA |
1710 | /* TOFIX: Default to RGB888 output format */ |
1711 | hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_RGB888_1X24; | |
9aaf880e | 1712 | |
9aaf880e FE |
1713 | hdmi->hdmi_data.pix_repet_factor = 0; |
1714 | hdmi->hdmi_data.hdcp_enable = 0; | |
1715 | hdmi->hdmi_data.video_mode.mdataenablepolarity = true; | |
1716 | ||
1717 | /* HDMI Initialization Step B.1 */ | |
1718 | hdmi_av_composer(hdmi, mode); | |
1719 | ||
1720 | /* HDMI Initializateion Step B.2 */ | |
f1585f6e | 1721 | ret = hdmi->phy.ops->init(hdmi, hdmi->phy.data, &hdmi->previous_mode); |
9aaf880e FE |
1722 | if (ret) |
1723 | return ret; | |
f1585f6e | 1724 | hdmi->phy.enabled = true; |
9aaf880e FE |
1725 | |
1726 | /* HDMI Initialization Step B.3 */ | |
b21f4b65 | 1727 | dw_hdmi_enable_video_path(hdmi); |
9aaf880e | 1728 | |
f709ec07 RK |
1729 | if (hdmi->sink_has_audio) { |
1730 | dev_dbg(hdmi->dev, "sink has audio support\n"); | |
9aaf880e FE |
1731 | |
1732 | /* HDMI Initialization Step E - Configure audio */ | |
1733 | hdmi_clk_regenerator_update_pixel_clock(hdmi); | |
57fbc055 | 1734 | hdmi_enable_audio_clk(hdmi, true); |
f709ec07 RK |
1735 | } |
1736 | ||
1737 | /* not for DVI mode */ | |
1738 | if (hdmi->sink_is_hdmi) { | |
1739 | dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__); | |
9aaf880e FE |
1740 | |
1741 | /* HDMI Initialization Step F - Configure AVI InfoFrame */ | |
d4ac4cb6 | 1742 | hdmi_config_AVI(hdmi, mode); |
9aa1eca0 | 1743 | hdmi_config_vendor_specific_infoframe(hdmi, mode); |
05b1342f RK |
1744 | } else { |
1745 | dev_dbg(hdmi->dev, "%s DVI mode\n", __func__); | |
9aaf880e FE |
1746 | } |
1747 | ||
1748 | hdmi_video_packetize(hdmi); | |
1749 | hdmi_video_csc(hdmi); | |
1750 | hdmi_video_sample(hdmi); | |
1751 | hdmi_tx_hdcp_config(hdmi); | |
1752 | ||
b21f4b65 | 1753 | dw_hdmi_clear_overflow(hdmi); |
05b1342f | 1754 | if (hdmi->cable_plugin && hdmi->sink_is_hdmi) |
9aaf880e FE |
1755 | hdmi_enable_overflow_interrupts(hdmi); |
1756 | ||
1757 | return 0; | |
1758 | } | |
1759 | ||
a23d6265 | 1760 | static void dw_hdmi_setup_i2c(struct dw_hdmi *hdmi) |
9aaf880e FE |
1761 | { |
1762 | hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL, | |
1763 | HDMI_PHY_I2CM_INT_ADDR); | |
1764 | ||
1765 | hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL | | |
1766 | HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL, | |
1767 | HDMI_PHY_I2CM_CTLINT_ADDR); | |
9aaf880e FE |
1768 | } |
1769 | ||
b21f4b65 | 1770 | static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi) |
9aaf880e FE |
1771 | { |
1772 | u8 ih_mute; | |
1773 | ||
1774 | /* | |
1775 | * Boot up defaults are: | |
1776 | * HDMI_IH_MUTE = 0x03 (disabled) | |
1777 | * HDMI_IH_MUTE_* = 0x00 (enabled) | |
1778 | * | |
1779 | * Disable top level interrupt bits in HDMI block | |
1780 | */ | |
1781 | ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) | | |
1782 | HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT | | |
1783 | HDMI_IH_MUTE_MUTE_ALL_INTERRUPT; | |
1784 | ||
1785 | hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE); | |
1786 | ||
1787 | /* by default mask all interrupts */ | |
1788 | hdmi_writeb(hdmi, 0xff, HDMI_VP_MASK); | |
1789 | hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0); | |
1790 | hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1); | |
1791 | hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2); | |
1792 | hdmi_writeb(hdmi, 0xff, HDMI_PHY_MASK0); | |
1793 | hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_INT_ADDR); | |
1794 | hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_CTLINT_ADDR); | |
1795 | hdmi_writeb(hdmi, 0xff, HDMI_AUD_INT); | |
1796 | hdmi_writeb(hdmi, 0xff, HDMI_AUD_SPDIFINT); | |
1797 | hdmi_writeb(hdmi, 0xff, HDMI_AUD_HBR_MASK); | |
1798 | hdmi_writeb(hdmi, 0xff, HDMI_GP_MASK); | |
1799 | hdmi_writeb(hdmi, 0xff, HDMI_A_APIINTMSK); | |
9aaf880e FE |
1800 | hdmi_writeb(hdmi, 0xff, HDMI_I2CM_INT); |
1801 | hdmi_writeb(hdmi, 0xff, HDMI_I2CM_CTLINT); | |
1802 | ||
1803 | /* Disable interrupts in the IH_MUTE_* registers */ | |
1804 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0); | |
1805 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1); | |
1806 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2); | |
1807 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0); | |
1808 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_PHY_STAT0); | |
1809 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0); | |
1810 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0); | |
1811 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0); | |
1812 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0); | |
1813 | hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0); | |
1814 | ||
1815 | /* Enable top level interrupt bits in HDMI block */ | |
1816 | ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT | | |
1817 | HDMI_IH_MUTE_MUTE_ALL_INTERRUPT); | |
1818 | hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE); | |
1819 | } | |
1820 | ||
b21f4b65 | 1821 | static void dw_hdmi_poweron(struct dw_hdmi *hdmi) |
9aaf880e | 1822 | { |
381f05a7 | 1823 | hdmi->bridge_is_on = true; |
b21f4b65 | 1824 | dw_hdmi_setup(hdmi, &hdmi->previous_mode); |
9aaf880e FE |
1825 | } |
1826 | ||
b21f4b65 | 1827 | static void dw_hdmi_poweroff(struct dw_hdmi *hdmi) |
9aaf880e | 1828 | { |
f1585f6e LP |
1829 | if (hdmi->phy.enabled) { |
1830 | hdmi->phy.ops->disable(hdmi, hdmi->phy.data); | |
1831 | hdmi->phy.enabled = false; | |
1832 | } | |
1833 | ||
381f05a7 RK |
1834 | hdmi->bridge_is_on = false; |
1835 | } | |
1836 | ||
1837 | static void dw_hdmi_update_power(struct dw_hdmi *hdmi) | |
1838 | { | |
1839 | int force = hdmi->force; | |
1840 | ||
1841 | if (hdmi->disabled) { | |
1842 | force = DRM_FORCE_OFF; | |
1843 | } else if (force == DRM_FORCE_UNSPECIFIED) { | |
aeac23bd | 1844 | if (hdmi->rxsense) |
381f05a7 RK |
1845 | force = DRM_FORCE_ON; |
1846 | else | |
1847 | force = DRM_FORCE_OFF; | |
1848 | } | |
1849 | ||
1850 | if (force == DRM_FORCE_OFF) { | |
1851 | if (hdmi->bridge_is_on) | |
1852 | dw_hdmi_poweroff(hdmi); | |
1853 | } else { | |
1854 | if (!hdmi->bridge_is_on) | |
1855 | dw_hdmi_poweron(hdmi); | |
1856 | } | |
9aaf880e FE |
1857 | } |
1858 | ||
aeac23bd RK |
1859 | /* |
1860 | * Adjust the detection of RXSENSE according to whether we have a forced | |
1861 | * connection mode enabled, or whether we have been disabled. There is | |
1862 | * no point processing RXSENSE interrupts if we have a forced connection | |
1863 | * state, or DRM has us disabled. | |
1864 | * | |
1865 | * We also disable rxsense interrupts when we think we're disconnected | |
1866 | * to avoid floating TDMS signals giving false rxsense interrupts. | |
1867 | * | |
1868 | * Note: we still need to listen for HPD interrupts even when DRM has us | |
1869 | * disabled so that we can detect a connect event. | |
1870 | */ | |
1871 | static void dw_hdmi_update_phy_mask(struct dw_hdmi *hdmi) | |
1872 | { | |
386d3299 NA |
1873 | if (hdmi->phy.ops->update_hpd) |
1874 | hdmi->phy.ops->update_hpd(hdmi, hdmi->phy.data, | |
1875 | hdmi->force, hdmi->disabled, | |
1876 | hdmi->rxsense); | |
a23d6265 LP |
1877 | } |
1878 | ||
b21f4b65 AY |
1879 | static enum drm_connector_status |
1880 | dw_hdmi_connector_detect(struct drm_connector *connector, bool force) | |
9aaf880e | 1881 | { |
b21f4b65 | 1882 | struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi, |
d94905e0 | 1883 | connector); |
98dbeada | 1884 | |
381f05a7 RK |
1885 | mutex_lock(&hdmi->mutex); |
1886 | hdmi->force = DRM_FORCE_UNSPECIFIED; | |
1887 | dw_hdmi_update_power(hdmi); | |
aeac23bd | 1888 | dw_hdmi_update_phy_mask(hdmi); |
381f05a7 RK |
1889 | mutex_unlock(&hdmi->mutex); |
1890 | ||
f1585f6e | 1891 | return hdmi->phy.ops->read_hpd(hdmi, hdmi->phy.data); |
9aaf880e FE |
1892 | } |
1893 | ||
b21f4b65 | 1894 | static int dw_hdmi_connector_get_modes(struct drm_connector *connector) |
9aaf880e | 1895 | { |
b21f4b65 | 1896 | struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi, |
9aaf880e FE |
1897 | connector); |
1898 | struct edid *edid; | |
6c7e66e6 | 1899 | int ret = 0; |
9aaf880e FE |
1900 | |
1901 | if (!hdmi->ddc) | |
1902 | return 0; | |
1903 | ||
1904 | edid = drm_get_edid(connector, hdmi->ddc); | |
1905 | if (edid) { | |
1906 | dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n", | |
1907 | edid->width_cm, edid->height_cm); | |
1908 | ||
05b1342f | 1909 | hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid); |
f709ec07 | 1910 | hdmi->sink_has_audio = drm_detect_monitor_audio(edid); |
9aaf880e | 1911 | drm_mode_connector_update_edid_property(connector, edid); |
e84b8d75 | 1912 | cec_notifier_set_phys_addr_from_edid(hdmi->cec_notifier, edid); |
9aaf880e | 1913 | ret = drm_add_edid_modes(connector, edid); |
f5ce4057 RK |
1914 | /* Store the ELD */ |
1915 | drm_edid_to_eld(connector, edid); | |
9aaf880e FE |
1916 | kfree(edid); |
1917 | } else { | |
1918 | dev_dbg(hdmi->dev, "failed to get edid\n"); | |
1919 | } | |
1920 | ||
6c7e66e6 | 1921 | return ret; |
9aaf880e FE |
1922 | } |
1923 | ||
381f05a7 RK |
1924 | static void dw_hdmi_connector_force(struct drm_connector *connector) |
1925 | { | |
1926 | struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi, | |
1927 | connector); | |
1928 | ||
1929 | mutex_lock(&hdmi->mutex); | |
1930 | hdmi->force = connector->force; | |
1931 | dw_hdmi_update_power(hdmi); | |
aeac23bd | 1932 | dw_hdmi_update_phy_mask(hdmi); |
381f05a7 RK |
1933 | mutex_unlock(&hdmi->mutex); |
1934 | } | |
1935 | ||
dae91e4d | 1936 | static const struct drm_connector_funcs dw_hdmi_connector_funcs = { |
2c5b2ccc MY |
1937 | .fill_modes = drm_helper_probe_single_connector_modes, |
1938 | .detect = dw_hdmi_connector_detect, | |
fdd8326a | 1939 | .destroy = drm_connector_cleanup, |
2c5b2ccc MY |
1940 | .force = dw_hdmi_connector_force, |
1941 | .reset = drm_atomic_helper_connector_reset, | |
1942 | .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, | |
1943 | .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, | |
1944 | }; | |
1945 | ||
dae91e4d | 1946 | static const struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = { |
b21f4b65 | 1947 | .get_modes = dw_hdmi_connector_get_modes, |
c2a441fe | 1948 | .best_encoder = drm_atomic_helper_best_encoder, |
9aaf880e FE |
1949 | }; |
1950 | ||
d2ae94ae LP |
1951 | static int dw_hdmi_bridge_attach(struct drm_bridge *bridge) |
1952 | { | |
1953 | struct dw_hdmi *hdmi = bridge->driver_private; | |
1954 | struct drm_encoder *encoder = bridge->encoder; | |
1955 | struct drm_connector *connector = &hdmi->connector; | |
1956 | ||
1957 | connector->interlace_allowed = 1; | |
1958 | connector->polled = DRM_CONNECTOR_POLL_HPD; | |
1959 | ||
1960 | drm_connector_helper_add(connector, &dw_hdmi_connector_helper_funcs); | |
1961 | ||
1962 | drm_connector_init(bridge->dev, connector, &dw_hdmi_connector_funcs, | |
1963 | DRM_MODE_CONNECTOR_HDMIA); | |
1964 | ||
1965 | drm_mode_connector_attach_encoder(connector, encoder); | |
1966 | ||
1967 | return 0; | |
1968 | } | |
1969 | ||
b0febde7 JA |
1970 | static enum drm_mode_status |
1971 | dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge, | |
1972 | const struct drm_display_mode *mode) | |
6ce2ca58 RP |
1973 | { |
1974 | struct dw_hdmi *hdmi = bridge->driver_private; | |
1975 | struct drm_connector *connector = &hdmi->connector; | |
b0febde7 | 1976 | enum drm_mode_status mode_status = MODE_OK; |
6ce2ca58 | 1977 | |
b0febde7 JA |
1978 | /* We don't support double-clocked modes */ |
1979 | if (mode->flags & DRM_MODE_FLAG_DBLCLK) | |
1980 | return MODE_BAD; | |
1981 | ||
1982 | if (hdmi->plat_data->mode_valid) | |
1983 | mode_status = hdmi->plat_data->mode_valid(connector, mode); | |
1984 | ||
1985 | return mode_status; | |
6ce2ca58 RP |
1986 | } |
1987 | ||
fd30b38c LP |
1988 | static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge, |
1989 | struct drm_display_mode *orig_mode, | |
1990 | struct drm_display_mode *mode) | |
1991 | { | |
1992 | struct dw_hdmi *hdmi = bridge->driver_private; | |
1993 | ||
1994 | mutex_lock(&hdmi->mutex); | |
1995 | ||
1996 | /* Store the display mode for plugin/DKMS poweron events */ | |
1997 | memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode)); | |
1998 | ||
1999 | mutex_unlock(&hdmi->mutex); | |
2000 | } | |
2001 | ||
2002 | static void dw_hdmi_bridge_disable(struct drm_bridge *bridge) | |
2003 | { | |
2004 | struct dw_hdmi *hdmi = bridge->driver_private; | |
2005 | ||
2006 | mutex_lock(&hdmi->mutex); | |
2007 | hdmi->disabled = true; | |
2008 | dw_hdmi_update_power(hdmi); | |
2009 | dw_hdmi_update_phy_mask(hdmi); | |
2010 | mutex_unlock(&hdmi->mutex); | |
2011 | } | |
2012 | ||
2013 | static void dw_hdmi_bridge_enable(struct drm_bridge *bridge) | |
2014 | { | |
2015 | struct dw_hdmi *hdmi = bridge->driver_private; | |
2016 | ||
2017 | mutex_lock(&hdmi->mutex); | |
2018 | hdmi->disabled = false; | |
2019 | dw_hdmi_update_power(hdmi); | |
2020 | dw_hdmi_update_phy_mask(hdmi); | |
2021 | mutex_unlock(&hdmi->mutex); | |
2022 | } | |
2023 | ||
dae91e4d | 2024 | static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = { |
d2ae94ae | 2025 | .attach = dw_hdmi_bridge_attach, |
b21f4b65 AY |
2026 | .enable = dw_hdmi_bridge_enable, |
2027 | .disable = dw_hdmi_bridge_disable, | |
b21f4b65 | 2028 | .mode_set = dw_hdmi_bridge_mode_set, |
b0febde7 | 2029 | .mode_valid = dw_hdmi_bridge_mode_valid, |
3d1b35a3 AY |
2030 | }; |
2031 | ||
3efc2fa3 VZ |
2032 | static irqreturn_t dw_hdmi_i2c_irq(struct dw_hdmi *hdmi) |
2033 | { | |
2034 | struct dw_hdmi_i2c *i2c = hdmi->i2c; | |
2035 | unsigned int stat; | |
2036 | ||
2037 | stat = hdmi_readb(hdmi, HDMI_IH_I2CM_STAT0); | |
2038 | if (!stat) | |
2039 | return IRQ_NONE; | |
2040 | ||
2041 | hdmi_writeb(hdmi, stat, HDMI_IH_I2CM_STAT0); | |
2042 | ||
2043 | i2c->stat = stat; | |
2044 | ||
2045 | complete(&i2c->cmp); | |
2046 | ||
2047 | return IRQ_HANDLED; | |
2048 | } | |
2049 | ||
b21f4b65 | 2050 | static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id) |
d94905e0 | 2051 | { |
b21f4b65 | 2052 | struct dw_hdmi *hdmi = dev_id; |
d94905e0 | 2053 | u8 intr_stat; |
3efc2fa3 VZ |
2054 | irqreturn_t ret = IRQ_NONE; |
2055 | ||
2056 | if (hdmi->i2c) | |
2057 | ret = dw_hdmi_i2c_irq(hdmi); | |
d94905e0 RK |
2058 | |
2059 | intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0); | |
3efc2fa3 | 2060 | if (intr_stat) { |
d94905e0 | 2061 | hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); |
3efc2fa3 VZ |
2062 | return IRQ_WAKE_THREAD; |
2063 | } | |
d94905e0 | 2064 | |
3efc2fa3 | 2065 | return ret; |
d94905e0 RK |
2066 | } |
2067 | ||
386d3299 NA |
2068 | void __dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense) |
2069 | { | |
2070 | mutex_lock(&hdmi->mutex); | |
2071 | ||
2072 | if (!hdmi->force) { | |
2073 | /* | |
2074 | * If the RX sense status indicates we're disconnected, | |
2075 | * clear the software rxsense status. | |
2076 | */ | |
2077 | if (!rx_sense) | |
2078 | hdmi->rxsense = false; | |
2079 | ||
2080 | /* | |
2081 | * Only set the software rxsense status when both | |
2082 | * rxsense and hpd indicates we're connected. | |
2083 | * This avoids what seems to be bad behaviour in | |
2084 | * at least iMX6S versions of the phy. | |
2085 | */ | |
2086 | if (hpd) | |
2087 | hdmi->rxsense = true; | |
2088 | ||
2089 | dw_hdmi_update_power(hdmi); | |
2090 | dw_hdmi_update_phy_mask(hdmi); | |
2091 | } | |
2092 | mutex_unlock(&hdmi->mutex); | |
2093 | } | |
2094 | ||
2095 | void dw_hdmi_setup_rx_sense(struct device *dev, bool hpd, bool rx_sense) | |
2096 | { | |
2097 | struct dw_hdmi *hdmi = dev_get_drvdata(dev); | |
2098 | ||
2099 | __dw_hdmi_setup_rx_sense(hdmi, hpd, rx_sense); | |
2100 | } | |
2101 | EXPORT_SYMBOL_GPL(dw_hdmi_setup_rx_sense); | |
2102 | ||
b21f4b65 | 2103 | static irqreturn_t dw_hdmi_irq(int irq, void *dev_id) |
9aaf880e | 2104 | { |
b21f4b65 | 2105 | struct dw_hdmi *hdmi = dev_id; |
aeac23bd | 2106 | u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat; |
9aaf880e FE |
2107 | |
2108 | intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0); | |
9aaf880e | 2109 | phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0); |
aeac23bd RK |
2110 | phy_stat = hdmi_readb(hdmi, HDMI_PHY_STAT0); |
2111 | ||
2112 | phy_pol_mask = 0; | |
2113 | if (intr_stat & HDMI_IH_PHY_STAT0_HPD) | |
2114 | phy_pol_mask |= HDMI_PHY_HPD; | |
2115 | if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE0) | |
2116 | phy_pol_mask |= HDMI_PHY_RX_SENSE0; | |
2117 | if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE1) | |
2118 | phy_pol_mask |= HDMI_PHY_RX_SENSE1; | |
2119 | if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE2) | |
2120 | phy_pol_mask |= HDMI_PHY_RX_SENSE2; | |
2121 | if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE3) | |
2122 | phy_pol_mask |= HDMI_PHY_RX_SENSE3; | |
2123 | ||
2124 | if (phy_pol_mask) | |
2125 | hdmi_modb(hdmi, ~phy_int_pol, phy_pol_mask, HDMI_PHY_POL0); | |
9aaf880e | 2126 | |
aeac23bd RK |
2127 | /* |
2128 | * RX sense tells us whether the TDMS transmitters are detecting | |
2129 | * load - in other words, there's something listening on the | |
2130 | * other end of the link. Use this to decide whether we should | |
2131 | * power on the phy as HPD may be toggled by the sink to merely | |
2132 | * ask the source to re-read the EDID. | |
2133 | */ | |
2134 | if (intr_stat & | |
e84b8d75 | 2135 | (HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_IH_PHY_STAT0_HPD)) { |
386d3299 NA |
2136 | __dw_hdmi_setup_rx_sense(hdmi, |
2137 | phy_stat & HDMI_PHY_HPD, | |
2138 | phy_stat & HDMI_PHY_RX_SENSE); | |
aeac23bd | 2139 | |
e84b8d75 RK |
2140 | if ((phy_stat & (HDMI_PHY_RX_SENSE | HDMI_PHY_HPD)) == 0) |
2141 | cec_notifier_set_phys_addr(hdmi->cec_notifier, | |
2142 | CEC_PHYS_ADDR_INVALID); | |
2143 | } | |
2144 | ||
aeac23bd RK |
2145 | if (intr_stat & HDMI_IH_PHY_STAT0_HPD) { |
2146 | dev_dbg(hdmi->dev, "EVENT=%s\n", | |
2147 | phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout"); | |
ba5d7e61 LP |
2148 | if (hdmi->bridge.dev) |
2149 | drm_helper_hpd_irq_event(hdmi->bridge.dev); | |
9aaf880e FE |
2150 | } |
2151 | ||
2152 | hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0); | |
aeac23bd RK |
2153 | hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE), |
2154 | HDMI_IH_MUTE_PHY_STAT0); | |
9aaf880e FE |
2155 | |
2156 | return IRQ_HANDLED; | |
2157 | } | |
2158 | ||
faba6c3c LP |
2159 | static const struct dw_hdmi_phy_data dw_hdmi_phys[] = { |
2160 | { | |
2161 | .type = DW_HDMI_PHY_DWC_HDMI_TX_PHY, | |
2162 | .name = "DWC HDMI TX PHY", | |
b0e583e5 | 2163 | .gen = 1, |
faba6c3c LP |
2164 | }, { |
2165 | .type = DW_HDMI_PHY_DWC_MHL_PHY_HEAC, | |
2166 | .name = "DWC MHL PHY + HEAC PHY", | |
b0e583e5 | 2167 | .gen = 2, |
faba6c3c | 2168 | .has_svsret = true, |
2ef9dfed | 2169 | .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, |
faba6c3c LP |
2170 | }, { |
2171 | .type = DW_HDMI_PHY_DWC_MHL_PHY, | |
2172 | .name = "DWC MHL PHY", | |
b0e583e5 | 2173 | .gen = 2, |
faba6c3c | 2174 | .has_svsret = true, |
2ef9dfed | 2175 | .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, |
faba6c3c LP |
2176 | }, { |
2177 | .type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY_HEAC, | |
2178 | .name = "DWC HDMI 3D TX PHY + HEAC PHY", | |
b0e583e5 | 2179 | .gen = 2, |
2ef9dfed | 2180 | .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, |
faba6c3c LP |
2181 | }, { |
2182 | .type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY, | |
2183 | .name = "DWC HDMI 3D TX PHY", | |
b0e583e5 | 2184 | .gen = 2, |
2ef9dfed | 2185 | .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, |
faba6c3c LP |
2186 | }, { |
2187 | .type = DW_HDMI_PHY_DWC_HDMI20_TX_PHY, | |
2188 | .name = "DWC HDMI 2.0 TX PHY", | |
b0e583e5 | 2189 | .gen = 2, |
faba6c3c | 2190 | .has_svsret = true, |
c93f6092 | 2191 | .configure = hdmi_phy_configure_dwc_hdmi_3d_tx, |
2ef9dfed KB |
2192 | }, { |
2193 | .type = DW_HDMI_PHY_VENDOR_PHY, | |
2194 | .name = "Vendor PHY", | |
faba6c3c LP |
2195 | } |
2196 | }; | |
2197 | ||
2198 | static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi) | |
2199 | { | |
2200 | unsigned int i; | |
2201 | u8 phy_type; | |
2202 | ||
2203 | phy_type = hdmi_readb(hdmi, HDMI_CONFIG2_ID); | |
2204 | ||
f1585f6e LP |
2205 | if (phy_type == DW_HDMI_PHY_VENDOR_PHY) { |
2206 | /* Vendor PHYs require support from the glue layer. */ | |
2207 | if (!hdmi->plat_data->phy_ops || !hdmi->plat_data->phy_name) { | |
2208 | dev_err(hdmi->dev, | |
2209 | "Vendor HDMI PHY not supported by glue layer\n"); | |
2210 | return -ENODEV; | |
2211 | } | |
2212 | ||
2213 | hdmi->phy.ops = hdmi->plat_data->phy_ops; | |
2214 | hdmi->phy.data = hdmi->plat_data->phy_data; | |
2215 | hdmi->phy.name = hdmi->plat_data->phy_name; | |
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | /* Synopsys PHYs are handled internally. */ | |
faba6c3c LP |
2220 | for (i = 0; i < ARRAY_SIZE(dw_hdmi_phys); ++i) { |
2221 | if (dw_hdmi_phys[i].type == phy_type) { | |
f1585f6e LP |
2222 | hdmi->phy.ops = &dw_hdmi_synopsys_phy_ops; |
2223 | hdmi->phy.name = dw_hdmi_phys[i].name; | |
2224 | hdmi->phy.data = (void *)&dw_hdmi_phys[i]; | |
2ef9dfed KB |
2225 | |
2226 | if (!dw_hdmi_phys[i].configure && | |
2227 | !hdmi->plat_data->configure_phy) { | |
2228 | dev_err(hdmi->dev, "%s requires platform support\n", | |
2229 | hdmi->phy.name); | |
2230 | return -ENODEV; | |
2231 | } | |
2232 | ||
faba6c3c LP |
2233 | return 0; |
2234 | } | |
2235 | } | |
2236 | ||
f1585f6e | 2237 | dev_err(hdmi->dev, "Unsupported HDMI PHY type (%02x)\n", phy_type); |
faba6c3c LP |
2238 | return -ENODEV; |
2239 | } | |
2240 | ||
a616e63c RK |
2241 | static void dw_hdmi_cec_enable(struct dw_hdmi *hdmi) |
2242 | { | |
2243 | mutex_lock(&hdmi->mutex); | |
2244 | hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_CECCLK_DISABLE; | |
2245 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
2246 | mutex_unlock(&hdmi->mutex); | |
2247 | } | |
2248 | ||
2249 | static void dw_hdmi_cec_disable(struct dw_hdmi *hdmi) | |
2250 | { | |
2251 | mutex_lock(&hdmi->mutex); | |
2252 | hdmi->mc_clkdis |= HDMI_MC_CLKDIS_CECCLK_DISABLE; | |
2253 | hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS); | |
2254 | mutex_unlock(&hdmi->mutex); | |
2255 | } | |
2256 | ||
2257 | static const struct dw_hdmi_cec_ops dw_hdmi_cec_ops = { | |
2258 | .write = hdmi_writeb, | |
2259 | .read = hdmi_readb, | |
2260 | .enable = dw_hdmi_cec_enable, | |
2261 | .disable = dw_hdmi_cec_disable, | |
2262 | }; | |
2263 | ||
80e2f979 NA |
2264 | static const struct regmap_config hdmi_regmap_8bit_config = { |
2265 | .reg_bits = 32, | |
2266 | .val_bits = 8, | |
2267 | .reg_stride = 1, | |
2268 | .max_register = HDMI_I2CM_FS_SCL_LCNT_0_ADDR, | |
2269 | }; | |
2270 | ||
2271 | static const struct regmap_config hdmi_regmap_32bit_config = { | |
2272 | .reg_bits = 32, | |
2273 | .val_bits = 32, | |
2274 | .reg_stride = 4, | |
2275 | .max_register = HDMI_I2CM_FS_SCL_LCNT_0_ADDR << 2, | |
2276 | }; | |
2277 | ||
69497eb9 LP |
2278 | static struct dw_hdmi * |
2279 | __dw_hdmi_probe(struct platform_device *pdev, | |
2280 | const struct dw_hdmi_plat_data *plat_data) | |
9aaf880e | 2281 | { |
c608119d | 2282 | struct device *dev = &pdev->dev; |
17b5001b | 2283 | struct device_node *np = dev->of_node; |
7ed6c665 | 2284 | struct platform_device_info pdevinfo; |
9aaf880e | 2285 | struct device_node *ddc_node; |
a616e63c | 2286 | struct dw_hdmi_cec_data cec; |
b21f4b65 | 2287 | struct dw_hdmi *hdmi; |
80e2f979 | 2288 | struct resource *iores = NULL; |
c608119d | 2289 | int irq; |
3d1b35a3 | 2290 | int ret; |
0cd9d142 | 2291 | u32 val = 1; |
0527e12e LP |
2292 | u8 prod_id0; |
2293 | u8 prod_id1; | |
2761ba6c | 2294 | u8 config0; |
0c674948 | 2295 | u8 config3; |
9aaf880e | 2296 | |
17b5001b | 2297 | hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL); |
9aaf880e | 2298 | if (!hdmi) |
69497eb9 | 2299 | return ERR_PTR(-ENOMEM); |
9aaf880e | 2300 | |
3d1b35a3 | 2301 | hdmi->plat_data = plat_data; |
17b5001b | 2302 | hdmi->dev = dev; |
40678388 | 2303 | hdmi->sample_rate = 48000; |
b872a8e1 | 2304 | hdmi->disabled = true; |
aeac23bd RK |
2305 | hdmi->rxsense = true; |
2306 | hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE); | |
7cc4ab22 | 2307 | hdmi->mc_clkdis = 0x7f; |
9aaf880e | 2308 | |
b872a8e1 | 2309 | mutex_init(&hdmi->mutex); |
6bcf4953 | 2310 | mutex_init(&hdmi->audio_mutex); |
b90120a9 | 2311 | spin_lock_init(&hdmi->audio_lock); |
6bcf4953 | 2312 | |
b5d45901 | 2313 | ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0); |
9aaf880e | 2314 | if (ddc_node) { |
9f04a1f2 | 2315 | hdmi->ddc = of_get_i2c_adapter_by_node(ddc_node); |
c2c38488 AY |
2316 | of_node_put(ddc_node); |
2317 | if (!hdmi->ddc) { | |
9aaf880e | 2318 | dev_dbg(hdmi->dev, "failed to read ddc node\n"); |
69497eb9 | 2319 | return ERR_PTR(-EPROBE_DEFER); |
c2c38488 | 2320 | } |
9aaf880e | 2321 | |
9aaf880e FE |
2322 | } else { |
2323 | dev_dbg(hdmi->dev, "no ddc property found\n"); | |
2324 | } | |
2325 | ||
80e2f979 NA |
2326 | if (!plat_data->regm) { |
2327 | const struct regmap_config *reg_config; | |
2328 | ||
2329 | of_property_read_u32(np, "reg-io-width", &val); | |
2330 | switch (val) { | |
2331 | case 4: | |
2332 | reg_config = &hdmi_regmap_32bit_config; | |
2333 | hdmi->reg_shift = 2; | |
2334 | break; | |
2335 | case 1: | |
2336 | reg_config = &hdmi_regmap_8bit_config; | |
2337 | break; | |
2338 | default: | |
2339 | dev_err(dev, "reg-io-width must be 1 or 4\n"); | |
2340 | return ERR_PTR(-EINVAL); | |
2341 | } | |
2342 | ||
2343 | iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
2344 | hdmi->regs = devm_ioremap_resource(dev, iores); | |
2345 | if (IS_ERR(hdmi->regs)) { | |
2346 | ret = PTR_ERR(hdmi->regs); | |
2347 | goto err_res; | |
2348 | } | |
2349 | ||
2350 | hdmi->regm = devm_regmap_init_mmio(dev, hdmi->regs, reg_config); | |
2351 | if (IS_ERR(hdmi->regm)) { | |
2352 | dev_err(dev, "Failed to configure regmap\n"); | |
2353 | ret = PTR_ERR(hdmi->regm); | |
2354 | goto err_res; | |
2355 | } | |
2356 | } else { | |
2357 | hdmi->regm = plat_data->regm; | |
9f04a1f2 | 2358 | } |
9aaf880e | 2359 | |
9aaf880e FE |
2360 | hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr"); |
2361 | if (IS_ERR(hdmi->isfr_clk)) { | |
2362 | ret = PTR_ERR(hdmi->isfr_clk); | |
b5878339 | 2363 | dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret); |
9f04a1f2 | 2364 | goto err_res; |
9aaf880e FE |
2365 | } |
2366 | ||
2367 | ret = clk_prepare_enable(hdmi->isfr_clk); | |
2368 | if (ret) { | |
b5878339 | 2369 | dev_err(hdmi->dev, "Cannot enable HDMI isfr clock: %d\n", ret); |
9f04a1f2 | 2370 | goto err_res; |
9aaf880e FE |
2371 | } |
2372 | ||
2373 | hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb"); | |
2374 | if (IS_ERR(hdmi->iahb_clk)) { | |
2375 | ret = PTR_ERR(hdmi->iahb_clk); | |
b5878339 | 2376 | dev_err(hdmi->dev, "Unable to get HDMI iahb clk: %d\n", ret); |
9aaf880e FE |
2377 | goto err_isfr; |
2378 | } | |
2379 | ||
2380 | ret = clk_prepare_enable(hdmi->iahb_clk); | |
2381 | if (ret) { | |
b5878339 | 2382 | dev_err(hdmi->dev, "Cannot enable HDMI iahb clock: %d\n", ret); |
9aaf880e FE |
2383 | goto err_isfr; |
2384 | } | |
2385 | ||
ebe32c3e PHH |
2386 | hdmi->cec_clk = devm_clk_get(hdmi->dev, "cec"); |
2387 | if (PTR_ERR(hdmi->cec_clk) == -ENOENT) { | |
2388 | hdmi->cec_clk = NULL; | |
2389 | } else if (IS_ERR(hdmi->cec_clk)) { | |
2390 | ret = PTR_ERR(hdmi->cec_clk); | |
2391 | if (ret != -EPROBE_DEFER) | |
2392 | dev_err(hdmi->dev, "Cannot get HDMI cec clock: %d\n", | |
2393 | ret); | |
2394 | ||
2395 | hdmi->cec_clk = NULL; | |
2396 | goto err_iahb; | |
2397 | } else { | |
2398 | ret = clk_prepare_enable(hdmi->cec_clk); | |
2399 | if (ret) { | |
2400 | dev_err(hdmi->dev, "Cannot enable HDMI cec clock: %d\n", | |
2401 | ret); | |
2402 | goto err_iahb; | |
2403 | } | |
2404 | } | |
2405 | ||
9aaf880e | 2406 | /* Product and revision IDs */ |
be41fc55 LP |
2407 | hdmi->version = (hdmi_readb(hdmi, HDMI_DESIGN_ID) << 8) |
2408 | | (hdmi_readb(hdmi, HDMI_REVISION_ID) << 0); | |
0527e12e LP |
2409 | prod_id0 = hdmi_readb(hdmi, HDMI_PRODUCT_ID0); |
2410 | prod_id1 = hdmi_readb(hdmi, HDMI_PRODUCT_ID1); | |
2411 | ||
2412 | if (prod_id0 != HDMI_PRODUCT_ID0_HDMI_TX || | |
2413 | (prod_id1 & ~HDMI_PRODUCT_ID1_HDCP) != HDMI_PRODUCT_ID1_HDMI_TX) { | |
2414 | dev_err(dev, "Unsupported HDMI controller (%04x:%02x:%02x)\n", | |
be41fc55 | 2415 | hdmi->version, prod_id0, prod_id1); |
0527e12e LP |
2416 | ret = -ENODEV; |
2417 | goto err_iahb; | |
2418 | } | |
2419 | ||
faba6c3c LP |
2420 | ret = dw_hdmi_detect_phy(hdmi); |
2421 | if (ret < 0) | |
2422 | goto err_iahb; | |
2423 | ||
2424 | dev_info(dev, "Detected HDMI TX controller v%x.%03x %s HDCP (%s)\n", | |
be41fc55 | 2425 | hdmi->version >> 12, hdmi->version & 0xfff, |
faba6c3c | 2426 | prod_id1 & HDMI_PRODUCT_ID1_HDCP ? "with" : "without", |
f1585f6e | 2427 | hdmi->phy.name); |
9aaf880e FE |
2428 | |
2429 | initialize_hdmi_ih_mutes(hdmi); | |
2430 | ||
c608119d | 2431 | irq = platform_get_irq(pdev, 0); |
69497eb9 LP |
2432 | if (irq < 0) { |
2433 | ret = irq; | |
c608119d | 2434 | goto err_iahb; |
69497eb9 | 2435 | } |
c608119d | 2436 | |
639a202c PZ |
2437 | ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq, |
2438 | dw_hdmi_irq, IRQF_SHARED, | |
2439 | dev_name(dev), hdmi); | |
2440 | if (ret) | |
b33ef619 | 2441 | goto err_iahb; |
639a202c | 2442 | |
e84b8d75 RK |
2443 | hdmi->cec_notifier = cec_notifier_get(dev); |
2444 | if (!hdmi->cec_notifier) { | |
2445 | ret = -ENOMEM; | |
2446 | goto err_iahb; | |
2447 | } | |
2448 | ||
9aaf880e FE |
2449 | /* |
2450 | * To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator | |
2451 | * N and cts values before enabling phy | |
2452 | */ | |
2453 | hdmi_init_clk_regenerator(hdmi); | |
2454 | ||
3efc2fa3 VZ |
2455 | /* If DDC bus is not specified, try to register HDMI I2C bus */ |
2456 | if (!hdmi->ddc) { | |
2457 | hdmi->ddc = dw_hdmi_i2c_adapter(hdmi); | |
2458 | if (IS_ERR(hdmi->ddc)) | |
2459 | hdmi->ddc = NULL; | |
2460 | } | |
2461 | ||
69497eb9 LP |
2462 | hdmi->bridge.driver_private = hdmi; |
2463 | hdmi->bridge.funcs = &dw_hdmi_bridge_funcs; | |
d5ad7843 | 2464 | #ifdef CONFIG_OF |
69497eb9 | 2465 | hdmi->bridge.of_node = pdev->dev.of_node; |
d5ad7843 | 2466 | #endif |
9aaf880e | 2467 | |
a23d6265 | 2468 | dw_hdmi_setup_i2c(hdmi); |
386d3299 NA |
2469 | if (hdmi->phy.ops->setup_hpd) |
2470 | hdmi->phy.ops->setup_hpd(hdmi, hdmi->phy.data); | |
9aaf880e | 2471 | |
7ed6c665 RK |
2472 | memset(&pdevinfo, 0, sizeof(pdevinfo)); |
2473 | pdevinfo.parent = dev; | |
2474 | pdevinfo.id = PLATFORM_DEVID_AUTO; | |
2475 | ||
2761ba6c | 2476 | config0 = hdmi_readb(hdmi, HDMI_CONFIG0_ID); |
0c674948 | 2477 | config3 = hdmi_readb(hdmi, HDMI_CONFIG3_ID); |
2761ba6c | 2478 | |
80e2f979 | 2479 | if (iores && config3 & HDMI_CONFIG3_AHBAUDDMA) { |
2761ba6c KM |
2480 | struct dw_hdmi_audio_data audio; |
2481 | ||
7ed6c665 RK |
2482 | audio.phys = iores->start; |
2483 | audio.base = hdmi->regs; | |
2484 | audio.irq = irq; | |
2485 | audio.hdmi = hdmi; | |
f5ce4057 | 2486 | audio.eld = hdmi->connector.eld; |
a7d555d2 RP |
2487 | hdmi->enable_audio = dw_hdmi_ahb_audio_enable; |
2488 | hdmi->disable_audio = dw_hdmi_ahb_audio_disable; | |
7ed6c665 RK |
2489 | |
2490 | pdevinfo.name = "dw-hdmi-ahb-audio"; | |
2491 | pdevinfo.data = &audio; | |
2492 | pdevinfo.size_data = sizeof(audio); | |
2493 | pdevinfo.dma_mask = DMA_BIT_MASK(32); | |
2494 | hdmi->audio = platform_device_register_full(&pdevinfo); | |
2761ba6c KM |
2495 | } else if (config0 & HDMI_CONFIG0_I2S) { |
2496 | struct dw_hdmi_i2s_audio_data audio; | |
2497 | ||
2498 | audio.hdmi = hdmi; | |
2499 | audio.write = hdmi_writeb; | |
2500 | audio.read = hdmi_readb; | |
a7d555d2 | 2501 | hdmi->enable_audio = dw_hdmi_i2s_audio_enable; |
57fbc055 | 2502 | hdmi->disable_audio = dw_hdmi_i2s_audio_disable; |
2761ba6c KM |
2503 | |
2504 | pdevinfo.name = "dw-hdmi-i2s-audio"; | |
2505 | pdevinfo.data = &audio; | |
2506 | pdevinfo.size_data = sizeof(audio); | |
2507 | pdevinfo.dma_mask = DMA_BIT_MASK(32); | |
2508 | hdmi->audio = platform_device_register_full(&pdevinfo); | |
7ed6c665 RK |
2509 | } |
2510 | ||
a616e63c RK |
2511 | if (config0 & HDMI_CONFIG0_CEC) { |
2512 | cec.hdmi = hdmi; | |
2513 | cec.ops = &dw_hdmi_cec_ops; | |
2514 | cec.irq = irq; | |
2515 | ||
2516 | pdevinfo.name = "dw-hdmi-cec"; | |
2517 | pdevinfo.data = &cec; | |
2518 | pdevinfo.size_data = sizeof(cec); | |
2519 | pdevinfo.dma_mask = 0; | |
2520 | ||
2521 | hdmi->cec = platform_device_register_full(&pdevinfo); | |
2522 | } | |
2523 | ||
3efc2fa3 VZ |
2524 | /* Reset HDMI DDC I2C master controller and mute I2CM interrupts */ |
2525 | if (hdmi->i2c) | |
2526 | dw_hdmi_i2c_init(hdmi); | |
2527 | ||
c608119d | 2528 | platform_set_drvdata(pdev, hdmi); |
9aaf880e | 2529 | |
69497eb9 | 2530 | return hdmi; |
9aaf880e FE |
2531 | |
2532 | err_iahb: | |
3efc2fa3 VZ |
2533 | if (hdmi->i2c) { |
2534 | i2c_del_adapter(&hdmi->i2c->adap); | |
2535 | hdmi->ddc = NULL; | |
2536 | } | |
2537 | ||
e84b8d75 RK |
2538 | if (hdmi->cec_notifier) |
2539 | cec_notifier_put(hdmi->cec_notifier); | |
2540 | ||
9aaf880e | 2541 | clk_disable_unprepare(hdmi->iahb_clk); |
ebe32c3e PHH |
2542 | if (hdmi->cec_clk) |
2543 | clk_disable_unprepare(hdmi->cec_clk); | |
9aaf880e FE |
2544 | err_isfr: |
2545 | clk_disable_unprepare(hdmi->isfr_clk); | |
9f04a1f2 VZ |
2546 | err_res: |
2547 | i2c_put_adapter(hdmi->ddc); | |
9aaf880e | 2548 | |
69497eb9 | 2549 | return ERR_PTR(ret); |
9aaf880e FE |
2550 | } |
2551 | ||
69497eb9 | 2552 | static void __dw_hdmi_remove(struct dw_hdmi *hdmi) |
9aaf880e | 2553 | { |
7ed6c665 RK |
2554 | if (hdmi->audio && !IS_ERR(hdmi->audio)) |
2555 | platform_device_unregister(hdmi->audio); | |
a616e63c RK |
2556 | if (!IS_ERR(hdmi->cec)) |
2557 | platform_device_unregister(hdmi->cec); | |
7ed6c665 | 2558 | |
d94905e0 RK |
2559 | /* Disable all interrupts */ |
2560 | hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); | |
2561 | ||
e383bf85 HV |
2562 | if (hdmi->cec_notifier) |
2563 | cec_notifier_put(hdmi->cec_notifier); | |
2564 | ||
9aaf880e FE |
2565 | clk_disable_unprepare(hdmi->iahb_clk); |
2566 | clk_disable_unprepare(hdmi->isfr_clk); | |
ebe32c3e PHH |
2567 | if (hdmi->cec_clk) |
2568 | clk_disable_unprepare(hdmi->cec_clk); | |
3efc2fa3 VZ |
2569 | |
2570 | if (hdmi->i2c) | |
2571 | i2c_del_adapter(&hdmi->i2c->adap); | |
2572 | else | |
2573 | i2c_put_adapter(hdmi->ddc); | |
17b5001b | 2574 | } |
69497eb9 LP |
2575 | |
2576 | /* ----------------------------------------------------------------------------- | |
2577 | * Probe/remove API, used from platforms based on the DRM bridge API. | |
2578 | */ | |
2579 | int dw_hdmi_probe(struct platform_device *pdev, | |
2580 | const struct dw_hdmi_plat_data *plat_data) | |
2581 | { | |
2582 | struct dw_hdmi *hdmi; | |
69497eb9 LP |
2583 | |
2584 | hdmi = __dw_hdmi_probe(pdev, plat_data); | |
2585 | if (IS_ERR(hdmi)) | |
2586 | return PTR_ERR(hdmi); | |
2587 | ||
b678682e | 2588 | drm_bridge_add(&hdmi->bridge); |
69497eb9 LP |
2589 | |
2590 | return 0; | |
2591 | } | |
2592 | EXPORT_SYMBOL_GPL(dw_hdmi_probe); | |
2593 | ||
2594 | void dw_hdmi_remove(struct platform_device *pdev) | |
2595 | { | |
2596 | struct dw_hdmi *hdmi = platform_get_drvdata(pdev); | |
2597 | ||
2598 | drm_bridge_remove(&hdmi->bridge); | |
2599 | ||
2600 | __dw_hdmi_remove(hdmi); | |
2601 | } | |
2602 | EXPORT_SYMBOL_GPL(dw_hdmi_remove); | |
2603 | ||
2604 | /* ----------------------------------------------------------------------------- | |
2605 | * Bind/unbind API, used from platforms based on the component framework. | |
2606 | */ | |
2607 | int dw_hdmi_bind(struct platform_device *pdev, struct drm_encoder *encoder, | |
2608 | const struct dw_hdmi_plat_data *plat_data) | |
2609 | { | |
2610 | struct dw_hdmi *hdmi; | |
2611 | int ret; | |
2612 | ||
2613 | hdmi = __dw_hdmi_probe(pdev, plat_data); | |
2614 | if (IS_ERR(hdmi)) | |
2615 | return PTR_ERR(hdmi); | |
2616 | ||
2617 | ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL); | |
2618 | if (ret) { | |
2619 | dw_hdmi_remove(pdev); | |
2620 | DRM_ERROR("Failed to initialize bridge with drm\n"); | |
2621 | return ret; | |
2622 | } | |
2623 | ||
2624 | return 0; | |
2625 | } | |
2626 | EXPORT_SYMBOL_GPL(dw_hdmi_bind); | |
2627 | ||
2628 | void dw_hdmi_unbind(struct device *dev) | |
2629 | { | |
2630 | struct dw_hdmi *hdmi = dev_get_drvdata(dev); | |
2631 | ||
2632 | __dw_hdmi_remove(hdmi); | |
2633 | } | |
b21f4b65 | 2634 | EXPORT_SYMBOL_GPL(dw_hdmi_unbind); |
9aaf880e FE |
2635 | |
2636 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); | |
3d1b35a3 AY |
2637 | MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>"); |
2638 | MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>"); | |
3efc2fa3 | 2639 | MODULE_AUTHOR("Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>"); |
b21f4b65 | 2640 | MODULE_DESCRIPTION("DW HDMI transmitter driver"); |
9aaf880e | 2641 | MODULE_LICENSE("GPL"); |
b21f4b65 | 2642 | MODULE_ALIAS("platform:dw-hdmi"); |