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1 | /* | |
2 | * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd | |
3 | * Author:Mark Yao <mark.yao@rock-chips.com> | |
4 | * | |
5 | * This software is licensed under the terms of the GNU General Public | |
6 | * License version 2, as published by the Free Software Foundation, and | |
7 | * may be copied, distributed, and modified under those terms. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | */ | |
14 | ||
15 | #include <drm/drm.h> | |
16 | #include <drm/drmP.h> | |
17 | #include <drm/drm_atomic.h> | |
18 | #include <drm/drm_crtc.h> | |
19 | #include <drm/drm_crtc_helper.h> | |
20 | #include <drm/drm_flip_work.h> | |
21 | #include <drm/drm_plane_helper.h> | |
22 | #ifdef CONFIG_DRM_ANALOGIX_DP | |
23 | #include <drm/bridge/analogix_dp.h> | |
24 | #endif | |
25 | ||
26 | #include <linux/kernel.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/platform_device.h> | |
29 | #include <linux/clk.h> | |
30 | #include <linux/iopoll.h> | |
31 | #include <linux/of.h> | |
32 | #include <linux/of_device.h> | |
33 | #include <linux/pm_runtime.h> | |
34 | #include <linux/component.h> | |
35 | ||
36 | #include <linux/reset.h> | |
37 | #include <linux/delay.h> | |
38 | ||
39 | #include "rockchip_drm_drv.h" | |
40 | #include "rockchip_drm_gem.h" | |
41 | #include "rockchip_drm_fb.h" | |
42 | #include "rockchip_drm_psr.h" | |
43 | #include "rockchip_drm_vop.h" | |
44 | ||
45 | #define __REG_SET_RELAXED(x, off, mask, shift, v, write_mask) \ | |
46 | vop_mask_write(x, off, mask, shift, v, write_mask, true) | |
47 | ||
48 | #define __REG_SET_NORMAL(x, off, mask, shift, v, write_mask) \ | |
49 | vop_mask_write(x, off, mask, shift, v, write_mask, false) | |
50 | ||
51 | #define REG_SET(x, base, reg, v, mode) \ | |
52 | __REG_SET_##mode(x, base + reg.offset, \ | |
53 | reg.mask, reg.shift, v, reg.write_mask) | |
54 | #define REG_SET_MASK(x, base, reg, mask, v, mode) \ | |
55 | __REG_SET_##mode(x, base + reg.offset, \ | |
56 | mask, reg.shift, v, reg.write_mask) | |
57 | ||
58 | #define VOP_WIN_SET(x, win, name, v) \ | |
59 | REG_SET(x, win->base, win->phy->name, v, RELAXED) | |
60 | #define VOP_SCL_SET(x, win, name, v) \ | |
61 | REG_SET(x, win->base, win->phy->scl->name, v, RELAXED) | |
62 | #define VOP_SCL_SET_EXT(x, win, name, v) \ | |
63 | REG_SET(x, win->base, win->phy->scl->ext->name, v, RELAXED) | |
64 | #define VOP_CTRL_SET(x, name, v) \ | |
65 | REG_SET(x, 0, (x)->data->ctrl->name, v, NORMAL) | |
66 | ||
67 | #define VOP_INTR_GET(vop, name) \ | |
68 | vop_read_reg(vop, 0, &vop->data->ctrl->name) | |
69 | ||
70 | #define VOP_INTR_SET(vop, name, mask, v) \ | |
71 | REG_SET_MASK(vop, 0, vop->data->intr->name, mask, v, NORMAL) | |
72 | #define VOP_INTR_SET_TYPE(vop, name, type, v) \ | |
73 | do { \ | |
74 | int i, reg = 0, mask = 0; \ | |
75 | for (i = 0; i < vop->data->intr->nintrs; i++) { \ | |
76 | if (vop->data->intr->intrs[i] & type) { \ | |
77 | reg |= (v) << i; \ | |
78 | mask |= 1 << i; \ | |
79 | } \ | |
80 | } \ | |
81 | VOP_INTR_SET(vop, name, mask, reg); \ | |
82 | } while (0) | |
83 | #define VOP_INTR_GET_TYPE(vop, name, type) \ | |
84 | vop_get_intr_type(vop, &vop->data->intr->name, type) | |
85 | ||
86 | #define VOP_WIN_GET(x, win, name) \ | |
87 | vop_read_reg(x, win->base, &win->phy->name) | |
88 | ||
89 | #define VOP_WIN_GET_YRGBADDR(vop, win) \ | |
90 | vop_readl(vop, win->base + win->phy->yrgb_mst.offset) | |
91 | ||
92 | #define to_vop(x) container_of(x, struct vop, crtc) | |
93 | #define to_vop_win(x) container_of(x, struct vop_win, base) | |
94 | ||
95 | enum vop_pending { | |
96 | VOP_PENDING_FB_UNREF, | |
97 | }; | |
98 | ||
99 | struct vop_win { | |
100 | struct drm_plane base; | |
101 | const struct vop_win_data *data; | |
102 | struct vop *vop; | |
103 | }; | |
104 | ||
105 | struct vop { | |
106 | struct drm_crtc crtc; | |
107 | struct device *dev; | |
108 | struct drm_device *drm_dev; | |
109 | bool is_enabled; | |
110 | ||
111 | /* mutex vsync_ work */ | |
112 | struct mutex vsync_mutex; | |
113 | bool vsync_work_pending; | |
114 | struct completion dsp_hold_completion; | |
115 | ||
116 | /* protected by dev->event_lock */ | |
117 | struct drm_pending_vblank_event *event; | |
118 | ||
119 | struct drm_flip_work fb_unref_work; | |
120 | unsigned long pending; | |
121 | ||
122 | struct completion line_flag_completion; | |
123 | ||
124 | const struct vop_data *data; | |
125 | ||
126 | uint32_t *regsbak; | |
127 | void __iomem *regs; | |
128 | ||
129 | /* physical map length of vop register */ | |
130 | uint32_t len; | |
131 | ||
132 | /* one time only one process allowed to config the register */ | |
133 | spinlock_t reg_lock; | |
134 | /* lock vop irq reg */ | |
135 | spinlock_t irq_lock; | |
136 | ||
137 | unsigned int irq; | |
138 | ||
139 | /* vop AHP clk */ | |
140 | struct clk *hclk; | |
141 | /* vop dclk */ | |
142 | struct clk *dclk; | |
143 | /* vop share memory frequency */ | |
144 | struct clk *aclk; | |
145 | ||
146 | /* vop dclk reset */ | |
147 | struct reset_control *dclk_rst; | |
148 | ||
149 | struct vop_win win[]; | |
150 | }; | |
151 | ||
152 | static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v) | |
153 | { | |
154 | writel(v, vop->regs + offset); | |
155 | vop->regsbak[offset >> 2] = v; | |
156 | } | |
157 | ||
158 | static inline uint32_t vop_readl(struct vop *vop, uint32_t offset) | |
159 | { | |
160 | return readl(vop->regs + offset); | |
161 | } | |
162 | ||
163 | static inline uint32_t vop_read_reg(struct vop *vop, uint32_t base, | |
164 | const struct vop_reg *reg) | |
165 | { | |
166 | return (vop_readl(vop, base + reg->offset) >> reg->shift) & reg->mask; | |
167 | } | |
168 | ||
169 | static inline void vop_mask_write(struct vop *vop, uint32_t offset, | |
170 | uint32_t mask, uint32_t shift, uint32_t v, | |
171 | bool write_mask, bool relaxed) | |
172 | { | |
173 | if (!mask) | |
174 | return; | |
175 | ||
176 | if (write_mask) { | |
177 | v = ((v << shift) & 0xffff) | (mask << (shift + 16)); | |
178 | } else { | |
179 | uint32_t cached_val = vop->regsbak[offset >> 2]; | |
180 | ||
181 | v = (cached_val & ~(mask << shift)) | ((v & mask) << shift); | |
182 | vop->regsbak[offset >> 2] = v; | |
183 | } | |
184 | ||
185 | if (relaxed) | |
186 | writel_relaxed(v, vop->regs + offset); | |
187 | else | |
188 | writel(v, vop->regs + offset); | |
189 | } | |
190 | ||
191 | static inline uint32_t vop_get_intr_type(struct vop *vop, | |
192 | const struct vop_reg *reg, int type) | |
193 | { | |
194 | uint32_t i, ret = 0; | |
195 | uint32_t regs = vop_read_reg(vop, 0, reg); | |
196 | ||
197 | for (i = 0; i < vop->data->intr->nintrs; i++) { | |
198 | if ((type & vop->data->intr->intrs[i]) && (regs & 1 << i)) | |
199 | ret |= vop->data->intr->intrs[i]; | |
200 | } | |
201 | ||
202 | return ret; | |
203 | } | |
204 | ||
205 | static inline void vop_cfg_done(struct vop *vop) | |
206 | { | |
207 | VOP_CTRL_SET(vop, cfg_done, 1); | |
208 | } | |
209 | ||
210 | static bool has_rb_swapped(uint32_t format) | |
211 | { | |
212 | switch (format) { | |
213 | case DRM_FORMAT_XBGR8888: | |
214 | case DRM_FORMAT_ABGR8888: | |
215 | case DRM_FORMAT_BGR888: | |
216 | case DRM_FORMAT_BGR565: | |
217 | return true; | |
218 | default: | |
219 | return false; | |
220 | } | |
221 | } | |
222 | ||
223 | static enum vop_data_format vop_convert_format(uint32_t format) | |
224 | { | |
225 | switch (format) { | |
226 | case DRM_FORMAT_XRGB8888: | |
227 | case DRM_FORMAT_ARGB8888: | |
228 | case DRM_FORMAT_XBGR8888: | |
229 | case DRM_FORMAT_ABGR8888: | |
230 | return VOP_FMT_ARGB8888; | |
231 | case DRM_FORMAT_RGB888: | |
232 | case DRM_FORMAT_BGR888: | |
233 | return VOP_FMT_RGB888; | |
234 | case DRM_FORMAT_RGB565: | |
235 | case DRM_FORMAT_BGR565: | |
236 | return VOP_FMT_RGB565; | |
237 | case DRM_FORMAT_NV12: | |
238 | return VOP_FMT_YUV420SP; | |
239 | case DRM_FORMAT_NV16: | |
240 | return VOP_FMT_YUV422SP; | |
241 | case DRM_FORMAT_NV24: | |
242 | return VOP_FMT_YUV444SP; | |
243 | default: | |
244 | DRM_ERROR("unsupported format[%08x]\n", format); | |
245 | return -EINVAL; | |
246 | } | |
247 | } | |
248 | ||
249 | static bool is_yuv_support(uint32_t format) | |
250 | { | |
251 | switch (format) { | |
252 | case DRM_FORMAT_NV12: | |
253 | case DRM_FORMAT_NV16: | |
254 | case DRM_FORMAT_NV24: | |
255 | return true; | |
256 | default: | |
257 | return false; | |
258 | } | |
259 | } | |
260 | ||
261 | static bool is_alpha_support(uint32_t format) | |
262 | { | |
263 | switch (format) { | |
264 | case DRM_FORMAT_ARGB8888: | |
265 | case DRM_FORMAT_ABGR8888: | |
266 | return true; | |
267 | default: | |
268 | return false; | |
269 | } | |
270 | } | |
271 | ||
272 | static uint16_t scl_vop_cal_scale(enum scale_mode mode, uint32_t src, | |
273 | uint32_t dst, bool is_horizontal, | |
274 | int vsu_mode, int *vskiplines) | |
275 | { | |
276 | uint16_t val = 1 << SCL_FT_DEFAULT_FIXPOINT_SHIFT; | |
277 | ||
278 | if (is_horizontal) { | |
279 | if (mode == SCALE_UP) | |
280 | val = GET_SCL_FT_BIC(src, dst); | |
281 | else if (mode == SCALE_DOWN) | |
282 | val = GET_SCL_FT_BILI_DN(src, dst); | |
283 | } else { | |
284 | if (mode == SCALE_UP) { | |
285 | if (vsu_mode == SCALE_UP_BIL) | |
286 | val = GET_SCL_FT_BILI_UP(src, dst); | |
287 | else | |
288 | val = GET_SCL_FT_BIC(src, dst); | |
289 | } else if (mode == SCALE_DOWN) { | |
290 | if (vskiplines) { | |
291 | *vskiplines = scl_get_vskiplines(src, dst); | |
292 | val = scl_get_bili_dn_vskip(src, dst, | |
293 | *vskiplines); | |
294 | } else { | |
295 | val = GET_SCL_FT_BILI_DN(src, dst); | |
296 | } | |
297 | } | |
298 | } | |
299 | ||
300 | return val; | |
301 | } | |
302 | ||
303 | static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win, | |
304 | uint32_t src_w, uint32_t src_h, uint32_t dst_w, | |
305 | uint32_t dst_h, uint32_t pixel_format) | |
306 | { | |
307 | uint16_t yrgb_hor_scl_mode, yrgb_ver_scl_mode; | |
308 | uint16_t cbcr_hor_scl_mode = SCALE_NONE; | |
309 | uint16_t cbcr_ver_scl_mode = SCALE_NONE; | |
310 | int hsub = drm_format_horz_chroma_subsampling(pixel_format); | |
311 | int vsub = drm_format_vert_chroma_subsampling(pixel_format); | |
312 | bool is_yuv = is_yuv_support(pixel_format); | |
313 | uint16_t cbcr_src_w = src_w / hsub; | |
314 | uint16_t cbcr_src_h = src_h / vsub; | |
315 | uint16_t vsu_mode; | |
316 | uint16_t lb_mode; | |
317 | uint32_t val; | |
318 | int vskiplines = 0; | |
319 | ||
320 | if (dst_w > 3840) { | |
321 | DRM_DEV_ERROR(vop->dev, "Maximum dst width (3840) exceeded\n"); | |
322 | return; | |
323 | } | |
324 | ||
325 | if (!win->phy->scl->ext) { | |
326 | VOP_SCL_SET(vop, win, scale_yrgb_x, | |
327 | scl_cal_scale2(src_w, dst_w)); | |
328 | VOP_SCL_SET(vop, win, scale_yrgb_y, | |
329 | scl_cal_scale2(src_h, dst_h)); | |
330 | if (is_yuv) { | |
331 | VOP_SCL_SET(vop, win, scale_cbcr_x, | |
332 | scl_cal_scale2(cbcr_src_w, dst_w)); | |
333 | VOP_SCL_SET(vop, win, scale_cbcr_y, | |
334 | scl_cal_scale2(cbcr_src_h, dst_h)); | |
335 | } | |
336 | return; | |
337 | } | |
338 | ||
339 | yrgb_hor_scl_mode = scl_get_scl_mode(src_w, dst_w); | |
340 | yrgb_ver_scl_mode = scl_get_scl_mode(src_h, dst_h); | |
341 | ||
342 | if (is_yuv) { | |
343 | cbcr_hor_scl_mode = scl_get_scl_mode(cbcr_src_w, dst_w); | |
344 | cbcr_ver_scl_mode = scl_get_scl_mode(cbcr_src_h, dst_h); | |
345 | if (cbcr_hor_scl_mode == SCALE_DOWN) | |
346 | lb_mode = scl_vop_cal_lb_mode(dst_w, true); | |
347 | else | |
348 | lb_mode = scl_vop_cal_lb_mode(cbcr_src_w, true); | |
349 | } else { | |
350 | if (yrgb_hor_scl_mode == SCALE_DOWN) | |
351 | lb_mode = scl_vop_cal_lb_mode(dst_w, false); | |
352 | else | |
353 | lb_mode = scl_vop_cal_lb_mode(src_w, false); | |
354 | } | |
355 | ||
356 | VOP_SCL_SET_EXT(vop, win, lb_mode, lb_mode); | |
357 | if (lb_mode == LB_RGB_3840X2) { | |
358 | if (yrgb_ver_scl_mode != SCALE_NONE) { | |
359 | DRM_DEV_ERROR(vop->dev, "not allow yrgb ver scale\n"); | |
360 | return; | |
361 | } | |
362 | if (cbcr_ver_scl_mode != SCALE_NONE) { | |
363 | DRM_DEV_ERROR(vop->dev, "not allow cbcr ver scale\n"); | |
364 | return; | |
365 | } | |
366 | vsu_mode = SCALE_UP_BIL; | |
367 | } else if (lb_mode == LB_RGB_2560X4) { | |
368 | vsu_mode = SCALE_UP_BIL; | |
369 | } else { | |
370 | vsu_mode = SCALE_UP_BIC; | |
371 | } | |
372 | ||
373 | val = scl_vop_cal_scale(yrgb_hor_scl_mode, src_w, dst_w, | |
374 | true, 0, NULL); | |
375 | VOP_SCL_SET(vop, win, scale_yrgb_x, val); | |
376 | val = scl_vop_cal_scale(yrgb_ver_scl_mode, src_h, dst_h, | |
377 | false, vsu_mode, &vskiplines); | |
378 | VOP_SCL_SET(vop, win, scale_yrgb_y, val); | |
379 | ||
380 | VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt4, vskiplines == 4); | |
381 | VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt2, vskiplines == 2); | |
382 | ||
383 | VOP_SCL_SET_EXT(vop, win, yrgb_hor_scl_mode, yrgb_hor_scl_mode); | |
384 | VOP_SCL_SET_EXT(vop, win, yrgb_ver_scl_mode, yrgb_ver_scl_mode); | |
385 | VOP_SCL_SET_EXT(vop, win, yrgb_hsd_mode, SCALE_DOWN_BIL); | |
386 | VOP_SCL_SET_EXT(vop, win, yrgb_vsd_mode, SCALE_DOWN_BIL); | |
387 | VOP_SCL_SET_EXT(vop, win, yrgb_vsu_mode, vsu_mode); | |
388 | if (is_yuv) { | |
389 | val = scl_vop_cal_scale(cbcr_hor_scl_mode, cbcr_src_w, | |
390 | dst_w, true, 0, NULL); | |
391 | VOP_SCL_SET(vop, win, scale_cbcr_x, val); | |
392 | val = scl_vop_cal_scale(cbcr_ver_scl_mode, cbcr_src_h, | |
393 | dst_h, false, vsu_mode, &vskiplines); | |
394 | VOP_SCL_SET(vop, win, scale_cbcr_y, val); | |
395 | ||
396 | VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt4, vskiplines == 4); | |
397 | VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt2, vskiplines == 2); | |
398 | VOP_SCL_SET_EXT(vop, win, cbcr_hor_scl_mode, cbcr_hor_scl_mode); | |
399 | VOP_SCL_SET_EXT(vop, win, cbcr_ver_scl_mode, cbcr_ver_scl_mode); | |
400 | VOP_SCL_SET_EXT(vop, win, cbcr_hsd_mode, SCALE_DOWN_BIL); | |
401 | VOP_SCL_SET_EXT(vop, win, cbcr_vsd_mode, SCALE_DOWN_BIL); | |
402 | VOP_SCL_SET_EXT(vop, win, cbcr_vsu_mode, vsu_mode); | |
403 | } | |
404 | } | |
405 | ||
406 | static void vop_dsp_hold_valid_irq_enable(struct vop *vop) | |
407 | { | |
408 | unsigned long flags; | |
409 | ||
410 | if (WARN_ON(!vop->is_enabled)) | |
411 | return; | |
412 | ||
413 | spin_lock_irqsave(&vop->irq_lock, flags); | |
414 | ||
415 | VOP_INTR_SET_TYPE(vop, clear, DSP_HOLD_VALID_INTR, 1); | |
416 | VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 1); | |
417 | ||
418 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
419 | } | |
420 | ||
421 | static void vop_dsp_hold_valid_irq_disable(struct vop *vop) | |
422 | { | |
423 | unsigned long flags; | |
424 | ||
425 | if (WARN_ON(!vop->is_enabled)) | |
426 | return; | |
427 | ||
428 | spin_lock_irqsave(&vop->irq_lock, flags); | |
429 | ||
430 | VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 0); | |
431 | ||
432 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
433 | } | |
434 | ||
435 | /* | |
436 | * (1) each frame starts at the start of the Vsync pulse which is signaled by | |
437 | * the "FRAME_SYNC" interrupt. | |
438 | * (2) the active data region of each frame ends at dsp_vact_end | |
439 | * (3) we should program this same number (dsp_vact_end) into dsp_line_frag_num, | |
440 | * to get "LINE_FLAG" interrupt at the end of the active on screen data. | |
441 | * | |
442 | * VOP_INTR_CTRL0.dsp_line_frag_num = VOP_DSP_VACT_ST_END.dsp_vact_end | |
443 | * Interrupts | |
444 | * LINE_FLAG -------------------------------+ | |
445 | * FRAME_SYNC ----+ | | |
446 | * | | | |
447 | * v v | |
448 | * | Vsync | Vbp | Vactive | Vfp | | |
449 | * ^ ^ ^ ^ | |
450 | * | | | | | |
451 | * | | | | | |
452 | * dsp_vs_end ------------+ | | | VOP_DSP_VTOTAL_VS_END | |
453 | * dsp_vact_start --------------+ | | VOP_DSP_VACT_ST_END | |
454 | * dsp_vact_end ----------------------------+ | VOP_DSP_VACT_ST_END | |
455 | * dsp_total -------------------------------------+ VOP_DSP_VTOTAL_VS_END | |
456 | */ | |
457 | static bool vop_line_flag_irq_is_enabled(struct vop *vop) | |
458 | { | |
459 | uint32_t line_flag_irq; | |
460 | unsigned long flags; | |
461 | ||
462 | spin_lock_irqsave(&vop->irq_lock, flags); | |
463 | ||
464 | line_flag_irq = VOP_INTR_GET_TYPE(vop, enable, LINE_FLAG_INTR); | |
465 | ||
466 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
467 | ||
468 | return !!line_flag_irq; | |
469 | } | |
470 | ||
471 | static void vop_line_flag_irq_enable(struct vop *vop) | |
472 | { | |
473 | unsigned long flags; | |
474 | ||
475 | if (WARN_ON(!vop->is_enabled)) | |
476 | return; | |
477 | ||
478 | spin_lock_irqsave(&vop->irq_lock, flags); | |
479 | ||
480 | VOP_INTR_SET_TYPE(vop, clear, LINE_FLAG_INTR, 1); | |
481 | VOP_INTR_SET_TYPE(vop, enable, LINE_FLAG_INTR, 1); | |
482 | ||
483 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
484 | } | |
485 | ||
486 | static void vop_line_flag_irq_disable(struct vop *vop) | |
487 | { | |
488 | unsigned long flags; | |
489 | ||
490 | if (WARN_ON(!vop->is_enabled)) | |
491 | return; | |
492 | ||
493 | spin_lock_irqsave(&vop->irq_lock, flags); | |
494 | ||
495 | VOP_INTR_SET_TYPE(vop, enable, LINE_FLAG_INTR, 0); | |
496 | ||
497 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
498 | } | |
499 | ||
500 | static int vop_enable(struct drm_crtc *crtc) | |
501 | { | |
502 | struct vop *vop = to_vop(crtc); | |
503 | int ret, i; | |
504 | ||
505 | ret = pm_runtime_get_sync(vop->dev); | |
506 | if (ret < 0) { | |
507 | dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); | |
508 | return ret; | |
509 | } | |
510 | ||
511 | ret = clk_enable(vop->hclk); | |
512 | if (WARN_ON(ret < 0)) | |
513 | goto err_put_pm_runtime; | |
514 | ||
515 | ret = clk_enable(vop->dclk); | |
516 | if (WARN_ON(ret < 0)) | |
517 | goto err_disable_hclk; | |
518 | ||
519 | ret = clk_enable(vop->aclk); | |
520 | if (WARN_ON(ret < 0)) | |
521 | goto err_disable_dclk; | |
522 | ||
523 | /* | |
524 | * Slave iommu shares power, irq and clock with vop. It was associated | |
525 | * automatically with this master device via common driver code. | |
526 | * Now that we have enabled the clock we attach it to the shared drm | |
527 | * mapping. | |
528 | */ | |
529 | ret = rockchip_drm_dma_attach_device(vop->drm_dev, vop->dev); | |
530 | if (ret) { | |
531 | dev_err(vop->dev, "failed to attach dma mapping, %d\n", ret); | |
532 | goto err_disable_aclk; | |
533 | } | |
534 | ||
535 | memcpy(vop->regs, vop->regsbak, vop->len); | |
536 | /* | |
537 | * We need to make sure that all windows are disabled before we | |
538 | * enable the crtc. Otherwise we might try to scan from a destroyed | |
539 | * buffer later. | |
540 | */ | |
541 | for (i = 0; i < vop->data->win_size; i++) { | |
542 | struct vop_win *vop_win = &vop->win[i]; | |
543 | const struct vop_win_data *win = vop_win->data; | |
544 | ||
545 | spin_lock(&vop->reg_lock); | |
546 | VOP_WIN_SET(vop, win, enable, 0); | |
547 | spin_unlock(&vop->reg_lock); | |
548 | } | |
549 | ||
550 | vop_cfg_done(vop); | |
551 | ||
552 | /* | |
553 | * At here, vop clock & iommu is enable, R/W vop regs would be safe. | |
554 | */ | |
555 | vop->is_enabled = true; | |
556 | ||
557 | spin_lock(&vop->reg_lock); | |
558 | ||
559 | VOP_CTRL_SET(vop, standby, 0); | |
560 | ||
561 | spin_unlock(&vop->reg_lock); | |
562 | ||
563 | enable_irq(vop->irq); | |
564 | ||
565 | drm_crtc_vblank_on(crtc); | |
566 | ||
567 | return 0; | |
568 | ||
569 | err_disable_aclk: | |
570 | clk_disable(vop->aclk); | |
571 | err_disable_dclk: | |
572 | clk_disable(vop->dclk); | |
573 | err_disable_hclk: | |
574 | clk_disable(vop->hclk); | |
575 | err_put_pm_runtime: | |
576 | pm_runtime_put_sync(vop->dev); | |
577 | return ret; | |
578 | } | |
579 | ||
580 | static void vop_crtc_disable(struct drm_crtc *crtc) | |
581 | { | |
582 | struct vop *vop = to_vop(crtc); | |
583 | ||
584 | WARN_ON(vop->event); | |
585 | ||
586 | rockchip_drm_psr_deactivate(&vop->crtc); | |
587 | ||
588 | drm_crtc_vblank_off(crtc); | |
589 | ||
590 | /* | |
591 | * Vop standby will take effect at end of current frame, | |
592 | * if dsp hold valid irq happen, it means standby complete. | |
593 | * | |
594 | * we must wait standby complete when we want to disable aclk, | |
595 | * if not, memory bus maybe dead. | |
596 | */ | |
597 | reinit_completion(&vop->dsp_hold_completion); | |
598 | vop_dsp_hold_valid_irq_enable(vop); | |
599 | ||
600 | spin_lock(&vop->reg_lock); | |
601 | ||
602 | VOP_CTRL_SET(vop, standby, 1); | |
603 | ||
604 | spin_unlock(&vop->reg_lock); | |
605 | ||
606 | wait_for_completion(&vop->dsp_hold_completion); | |
607 | ||
608 | vop_dsp_hold_valid_irq_disable(vop); | |
609 | ||
610 | disable_irq(vop->irq); | |
611 | ||
612 | vop->is_enabled = false; | |
613 | ||
614 | /* | |
615 | * vop standby complete, so iommu detach is safe. | |
616 | */ | |
617 | rockchip_drm_dma_detach_device(vop->drm_dev, vop->dev); | |
618 | ||
619 | clk_disable(vop->dclk); | |
620 | clk_disable(vop->aclk); | |
621 | clk_disable(vop->hclk); | |
622 | pm_runtime_put(vop->dev); | |
623 | ||
624 | if (crtc->state->event && !crtc->state->active) { | |
625 | spin_lock_irq(&crtc->dev->event_lock); | |
626 | drm_crtc_send_vblank_event(crtc, crtc->state->event); | |
627 | spin_unlock_irq(&crtc->dev->event_lock); | |
628 | ||
629 | crtc->state->event = NULL; | |
630 | } | |
631 | } | |
632 | ||
633 | static void vop_plane_destroy(struct drm_plane *plane) | |
634 | { | |
635 | drm_plane_cleanup(plane); | |
636 | } | |
637 | ||
638 | static int vop_plane_atomic_check(struct drm_plane *plane, | |
639 | struct drm_plane_state *state) | |
640 | { | |
641 | struct drm_crtc *crtc = state->crtc; | |
642 | struct drm_crtc_state *crtc_state; | |
643 | struct drm_framebuffer *fb = state->fb; | |
644 | struct vop_win *vop_win = to_vop_win(plane); | |
645 | const struct vop_win_data *win = vop_win->data; | |
646 | int ret; | |
647 | struct drm_rect clip; | |
648 | int min_scale = win->phy->scl ? FRAC_16_16(1, 8) : | |
649 | DRM_PLANE_HELPER_NO_SCALING; | |
650 | int max_scale = win->phy->scl ? FRAC_16_16(8, 1) : | |
651 | DRM_PLANE_HELPER_NO_SCALING; | |
652 | ||
653 | if (!crtc || !fb) | |
654 | return 0; | |
655 | ||
656 | crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc); | |
657 | if (WARN_ON(!crtc_state)) | |
658 | return -EINVAL; | |
659 | ||
660 | clip.x1 = 0; | |
661 | clip.y1 = 0; | |
662 | clip.x2 = crtc_state->adjusted_mode.hdisplay; | |
663 | clip.y2 = crtc_state->adjusted_mode.vdisplay; | |
664 | ||
665 | ret = drm_plane_helper_check_state(state, &clip, | |
666 | min_scale, max_scale, | |
667 | true, true); | |
668 | if (ret) | |
669 | return ret; | |
670 | ||
671 | if (!state->visible) | |
672 | return 0; | |
673 | ||
674 | ret = vop_convert_format(fb->format->format); | |
675 | if (ret < 0) | |
676 | return ret; | |
677 | ||
678 | /* | |
679 | * Src.x1 can be odd when do clip, but yuv plane start point | |
680 | * need align with 2 pixel. | |
681 | */ | |
682 | if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2)) { | |
683 | DRM_ERROR("Invalid Source: Yuv format not support odd xpos\n"); | |
684 | return -EINVAL; | |
685 | } | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
690 | static void vop_plane_atomic_disable(struct drm_plane *plane, | |
691 | struct drm_plane_state *old_state) | |
692 | { | |
693 | struct vop_win *vop_win = to_vop_win(plane); | |
694 | const struct vop_win_data *win = vop_win->data; | |
695 | struct vop *vop = to_vop(old_state->crtc); | |
696 | ||
697 | if (!old_state->crtc) | |
698 | return; | |
699 | ||
700 | spin_lock(&vop->reg_lock); | |
701 | ||
702 | VOP_WIN_SET(vop, win, enable, 0); | |
703 | ||
704 | spin_unlock(&vop->reg_lock); | |
705 | } | |
706 | ||
707 | static void vop_plane_atomic_update(struct drm_plane *plane, | |
708 | struct drm_plane_state *old_state) | |
709 | { | |
710 | struct drm_plane_state *state = plane->state; | |
711 | struct drm_crtc *crtc = state->crtc; | |
712 | struct vop_win *vop_win = to_vop_win(plane); | |
713 | const struct vop_win_data *win = vop_win->data; | |
714 | struct vop *vop = to_vop(state->crtc); | |
715 | struct drm_framebuffer *fb = state->fb; | |
716 | unsigned int actual_w, actual_h; | |
717 | unsigned int dsp_stx, dsp_sty; | |
718 | uint32_t act_info, dsp_info, dsp_st; | |
719 | struct drm_rect *src = &state->src; | |
720 | struct drm_rect *dest = &state->dst; | |
721 | struct drm_gem_object *obj, *uv_obj; | |
722 | struct rockchip_gem_object *rk_obj, *rk_uv_obj; | |
723 | unsigned long offset; | |
724 | dma_addr_t dma_addr; | |
725 | uint32_t val; | |
726 | bool rb_swap; | |
727 | int format; | |
728 | ||
729 | /* | |
730 | * can't update plane when vop is disabled. | |
731 | */ | |
732 | if (WARN_ON(!crtc)) | |
733 | return; | |
734 | ||
735 | if (WARN_ON(!vop->is_enabled)) | |
736 | return; | |
737 | ||
738 | if (!state->visible) { | |
739 | vop_plane_atomic_disable(plane, old_state); | |
740 | return; | |
741 | } | |
742 | ||
743 | obj = rockchip_fb_get_gem_obj(fb, 0); | |
744 | rk_obj = to_rockchip_obj(obj); | |
745 | ||
746 | actual_w = drm_rect_width(src) >> 16; | |
747 | actual_h = drm_rect_height(src) >> 16; | |
748 | act_info = (actual_h - 1) << 16 | ((actual_w - 1) & 0xffff); | |
749 | ||
750 | dsp_info = (drm_rect_height(dest) - 1) << 16; | |
751 | dsp_info |= (drm_rect_width(dest) - 1) & 0xffff; | |
752 | ||
753 | dsp_stx = dest->x1 + crtc->mode.htotal - crtc->mode.hsync_start; | |
754 | dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start; | |
755 | dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff); | |
756 | ||
757 | offset = (src->x1 >> 16) * fb->format->cpp[0]; | |
758 | offset += (src->y1 >> 16) * fb->pitches[0]; | |
759 | dma_addr = rk_obj->dma_addr + offset + fb->offsets[0]; | |
760 | ||
761 | format = vop_convert_format(fb->format->format); | |
762 | ||
763 | spin_lock(&vop->reg_lock); | |
764 | ||
765 | VOP_WIN_SET(vop, win, format, format); | |
766 | VOP_WIN_SET(vop, win, yrgb_vir, DIV_ROUND_UP(fb->pitches[0], 4)); | |
767 | VOP_WIN_SET(vop, win, yrgb_mst, dma_addr); | |
768 | if (is_yuv_support(fb->format->format)) { | |
769 | int hsub = drm_format_horz_chroma_subsampling(fb->format->format); | |
770 | int vsub = drm_format_vert_chroma_subsampling(fb->format->format); | |
771 | int bpp = fb->format->cpp[1]; | |
772 | ||
773 | uv_obj = rockchip_fb_get_gem_obj(fb, 1); | |
774 | rk_uv_obj = to_rockchip_obj(uv_obj); | |
775 | ||
776 | offset = (src->x1 >> 16) * bpp / hsub; | |
777 | offset += (src->y1 >> 16) * fb->pitches[1] / vsub; | |
778 | ||
779 | dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1]; | |
780 | VOP_WIN_SET(vop, win, uv_vir, DIV_ROUND_UP(fb->pitches[1], 4)); | |
781 | VOP_WIN_SET(vop, win, uv_mst, dma_addr); | |
782 | } | |
783 | ||
784 | if (win->phy->scl) | |
785 | scl_vop_cal_scl_fac(vop, win, actual_w, actual_h, | |
786 | drm_rect_width(dest), drm_rect_height(dest), | |
787 | fb->format->format); | |
788 | ||
789 | VOP_WIN_SET(vop, win, act_info, act_info); | |
790 | VOP_WIN_SET(vop, win, dsp_info, dsp_info); | |
791 | VOP_WIN_SET(vop, win, dsp_st, dsp_st); | |
792 | ||
793 | rb_swap = has_rb_swapped(fb->format->format); | |
794 | VOP_WIN_SET(vop, win, rb_swap, rb_swap); | |
795 | ||
796 | if (is_alpha_support(fb->format->format)) { | |
797 | VOP_WIN_SET(vop, win, dst_alpha_ctl, | |
798 | DST_FACTOR_M0(ALPHA_SRC_INVERSE)); | |
799 | val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) | | |
800 | SRC_ALPHA_M0(ALPHA_STRAIGHT) | | |
801 | SRC_BLEND_M0(ALPHA_PER_PIX) | | |
802 | SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) | | |
803 | SRC_FACTOR_M0(ALPHA_ONE); | |
804 | VOP_WIN_SET(vop, win, src_alpha_ctl, val); | |
805 | } else { | |
806 | VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0)); | |
807 | } | |
808 | ||
809 | VOP_WIN_SET(vop, win, enable, 1); | |
810 | spin_unlock(&vop->reg_lock); | |
811 | } | |
812 | ||
813 | static const struct drm_plane_helper_funcs plane_helper_funcs = { | |
814 | .atomic_check = vop_plane_atomic_check, | |
815 | .atomic_update = vop_plane_atomic_update, | |
816 | .atomic_disable = vop_plane_atomic_disable, | |
817 | }; | |
818 | ||
819 | static const struct drm_plane_funcs vop_plane_funcs = { | |
820 | .update_plane = drm_atomic_helper_update_plane, | |
821 | .disable_plane = drm_atomic_helper_disable_plane, | |
822 | .destroy = vop_plane_destroy, | |
823 | .reset = drm_atomic_helper_plane_reset, | |
824 | .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, | |
825 | .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, | |
826 | }; | |
827 | ||
828 | static int vop_crtc_enable_vblank(struct drm_crtc *crtc) | |
829 | { | |
830 | struct vop *vop = to_vop(crtc); | |
831 | unsigned long flags; | |
832 | ||
833 | if (WARN_ON(!vop->is_enabled)) | |
834 | return -EPERM; | |
835 | ||
836 | spin_lock_irqsave(&vop->irq_lock, flags); | |
837 | ||
838 | VOP_INTR_SET_TYPE(vop, clear, FS_INTR, 1); | |
839 | VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 1); | |
840 | ||
841 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
842 | ||
843 | return 0; | |
844 | } | |
845 | ||
846 | static void vop_crtc_disable_vblank(struct drm_crtc *crtc) | |
847 | { | |
848 | struct vop *vop = to_vop(crtc); | |
849 | unsigned long flags; | |
850 | ||
851 | if (WARN_ON(!vop->is_enabled)) | |
852 | return; | |
853 | ||
854 | spin_lock_irqsave(&vop->irq_lock, flags); | |
855 | ||
856 | VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 0); | |
857 | ||
858 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
859 | } | |
860 | ||
861 | static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, | |
862 | const struct drm_display_mode *mode, | |
863 | struct drm_display_mode *adjusted_mode) | |
864 | { | |
865 | struct vop *vop = to_vop(crtc); | |
866 | ||
867 | adjusted_mode->clock = | |
868 | clk_round_rate(vop->dclk, mode->clock * 1000) / 1000; | |
869 | ||
870 | return true; | |
871 | } | |
872 | ||
873 | static void vop_crtc_enable(struct drm_crtc *crtc) | |
874 | { | |
875 | struct vop *vop = to_vop(crtc); | |
876 | const struct vop_data *vop_data = vop->data; | |
877 | struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state); | |
878 | struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode; | |
879 | u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start; | |
880 | u16 hdisplay = adjusted_mode->hdisplay; | |
881 | u16 htotal = adjusted_mode->htotal; | |
882 | u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start; | |
883 | u16 hact_end = hact_st + hdisplay; | |
884 | u16 vdisplay = adjusted_mode->vdisplay; | |
885 | u16 vtotal = adjusted_mode->vtotal; | |
886 | u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start; | |
887 | u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start; | |
888 | u16 vact_end = vact_st + vdisplay; | |
889 | uint32_t pin_pol, val; | |
890 | int ret; | |
891 | ||
892 | WARN_ON(vop->event); | |
893 | ||
894 | ret = vop_enable(crtc); | |
895 | if (ret) { | |
896 | DRM_DEV_ERROR(vop->dev, "Failed to enable vop (%d)\n", ret); | |
897 | return; | |
898 | } | |
899 | ||
900 | /* | |
901 | * If dclk rate is zero, mean that scanout is stop, | |
902 | * we don't need wait any more. | |
903 | */ | |
904 | if (clk_get_rate(vop->dclk)) { | |
905 | /* | |
906 | * Rk3288 vop timing register is immediately, when configure | |
907 | * display timing on display time, may cause tearing. | |
908 | * | |
909 | * Vop standby will take effect at end of current frame, | |
910 | * if dsp hold valid irq happen, it means standby complete. | |
911 | * | |
912 | * mode set: | |
913 | * standby and wait complete --> |---- | |
914 | * | display time | |
915 | * |---- | |
916 | * |---> dsp hold irq | |
917 | * configure display timing --> | | |
918 | * standby exit | | |
919 | * | new frame start. | |
920 | */ | |
921 | ||
922 | reinit_completion(&vop->dsp_hold_completion); | |
923 | vop_dsp_hold_valid_irq_enable(vop); | |
924 | ||
925 | spin_lock(&vop->reg_lock); | |
926 | ||
927 | VOP_CTRL_SET(vop, standby, 1); | |
928 | ||
929 | spin_unlock(&vop->reg_lock); | |
930 | ||
931 | wait_for_completion(&vop->dsp_hold_completion); | |
932 | ||
933 | vop_dsp_hold_valid_irq_disable(vop); | |
934 | } | |
935 | ||
936 | pin_pol = BIT(DCLK_INVERT); | |
937 | pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) ? | |
938 | BIT(HSYNC_POSITIVE) : 0; | |
939 | pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) ? | |
940 | BIT(VSYNC_POSITIVE) : 0; | |
941 | VOP_CTRL_SET(vop, pin_pol, pin_pol); | |
942 | ||
943 | switch (s->output_type) { | |
944 | case DRM_MODE_CONNECTOR_LVDS: | |
945 | VOP_CTRL_SET(vop, rgb_en, 1); | |
946 | VOP_CTRL_SET(vop, rgb_pin_pol, pin_pol); | |
947 | break; | |
948 | case DRM_MODE_CONNECTOR_eDP: | |
949 | VOP_CTRL_SET(vop, edp_pin_pol, pin_pol); | |
950 | VOP_CTRL_SET(vop, edp_en, 1); | |
951 | break; | |
952 | case DRM_MODE_CONNECTOR_HDMIA: | |
953 | VOP_CTRL_SET(vop, hdmi_pin_pol, pin_pol); | |
954 | VOP_CTRL_SET(vop, hdmi_en, 1); | |
955 | break; | |
956 | case DRM_MODE_CONNECTOR_DSI: | |
957 | VOP_CTRL_SET(vop, mipi_pin_pol, pin_pol); | |
958 | VOP_CTRL_SET(vop, mipi_en, 1); | |
959 | break; | |
960 | case DRM_MODE_CONNECTOR_DisplayPort: | |
961 | pin_pol &= ~BIT(DCLK_INVERT); | |
962 | VOP_CTRL_SET(vop, dp_pin_pol, pin_pol); | |
963 | VOP_CTRL_SET(vop, dp_en, 1); | |
964 | break; | |
965 | default: | |
966 | DRM_DEV_ERROR(vop->dev, "unsupported connector_type [%d]\n", | |
967 | s->output_type); | |
968 | } | |
969 | ||
970 | /* | |
971 | * if vop is not support RGB10 output, need force RGB10 to RGB888. | |
972 | */ | |
973 | if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA && | |
974 | !(vop_data->feature & VOP_FEATURE_OUTPUT_RGB10)) | |
975 | s->output_mode = ROCKCHIP_OUT_MODE_P888; | |
976 | VOP_CTRL_SET(vop, out_mode, s->output_mode); | |
977 | ||
978 | VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len); | |
979 | val = hact_st << 16; | |
980 | val |= hact_end; | |
981 | VOP_CTRL_SET(vop, hact_st_end, val); | |
982 | VOP_CTRL_SET(vop, hpost_st_end, val); | |
983 | ||
984 | VOP_CTRL_SET(vop, vtotal_pw, (vtotal << 16) | vsync_len); | |
985 | val = vact_st << 16; | |
986 | val |= vact_end; | |
987 | VOP_CTRL_SET(vop, vact_st_end, val); | |
988 | VOP_CTRL_SET(vop, vpost_st_end, val); | |
989 | ||
990 | VOP_CTRL_SET(vop, line_flag_num[0], vact_end); | |
991 | ||
992 | clk_set_rate(vop->dclk, adjusted_mode->clock * 1000); | |
993 | ||
994 | VOP_CTRL_SET(vop, standby, 0); | |
995 | ||
996 | rockchip_drm_psr_activate(&vop->crtc); | |
997 | } | |
998 | ||
999 | static bool vop_fs_irq_is_pending(struct vop *vop) | |
1000 | { | |
1001 | return VOP_INTR_GET_TYPE(vop, status, FS_INTR); | |
1002 | } | |
1003 | ||
1004 | static void vop_wait_for_irq_handler(struct vop *vop) | |
1005 | { | |
1006 | bool pending; | |
1007 | int ret; | |
1008 | ||
1009 | /* | |
1010 | * Spin until frame start interrupt status bit goes low, which means | |
1011 | * that interrupt handler was invoked and cleared it. The timeout of | |
1012 | * 10 msecs is really too long, but it is just a safety measure if | |
1013 | * something goes really wrong. The wait will only happen in the very | |
1014 | * unlikely case of a vblank happening exactly at the same time and | |
1015 | * shouldn't exceed microseconds range. | |
1016 | */ | |
1017 | ret = readx_poll_timeout_atomic(vop_fs_irq_is_pending, vop, pending, | |
1018 | !pending, 0, 10 * 1000); | |
1019 | if (ret) | |
1020 | DRM_DEV_ERROR(vop->dev, "VOP vblank IRQ stuck for 10 ms\n"); | |
1021 | ||
1022 | synchronize_irq(vop->irq); | |
1023 | } | |
1024 | ||
1025 | static void vop_crtc_atomic_flush(struct drm_crtc *crtc, | |
1026 | struct drm_crtc_state *old_crtc_state) | |
1027 | { | |
1028 | struct drm_atomic_state *old_state = old_crtc_state->state; | |
1029 | struct drm_plane_state *old_plane_state; | |
1030 | struct vop *vop = to_vop(crtc); | |
1031 | struct drm_plane *plane; | |
1032 | int i; | |
1033 | ||
1034 | if (WARN_ON(!vop->is_enabled)) | |
1035 | return; | |
1036 | ||
1037 | spin_lock(&vop->reg_lock); | |
1038 | ||
1039 | vop_cfg_done(vop); | |
1040 | ||
1041 | spin_unlock(&vop->reg_lock); | |
1042 | ||
1043 | /* | |
1044 | * There is a (rather unlikely) possiblity that a vblank interrupt | |
1045 | * fired before we set the cfg_done bit. To avoid spuriously | |
1046 | * signalling flip completion we need to wait for it to finish. | |
1047 | */ | |
1048 | vop_wait_for_irq_handler(vop); | |
1049 | ||
1050 | spin_lock_irq(&crtc->dev->event_lock); | |
1051 | if (crtc->state->event) { | |
1052 | WARN_ON(drm_crtc_vblank_get(crtc) != 0); | |
1053 | WARN_ON(vop->event); | |
1054 | ||
1055 | vop->event = crtc->state->event; | |
1056 | crtc->state->event = NULL; | |
1057 | } | |
1058 | spin_unlock_irq(&crtc->dev->event_lock); | |
1059 | ||
1060 | for_each_plane_in_state(old_state, plane, old_plane_state, i) { | |
1061 | if (!old_plane_state->fb) | |
1062 | continue; | |
1063 | ||
1064 | if (old_plane_state->fb == plane->state->fb) | |
1065 | continue; | |
1066 | ||
1067 | drm_framebuffer_reference(old_plane_state->fb); | |
1068 | drm_flip_work_queue(&vop->fb_unref_work, old_plane_state->fb); | |
1069 | set_bit(VOP_PENDING_FB_UNREF, &vop->pending); | |
1070 | WARN_ON(drm_crtc_vblank_get(crtc) != 0); | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | static void vop_crtc_atomic_begin(struct drm_crtc *crtc, | |
1075 | struct drm_crtc_state *old_crtc_state) | |
1076 | { | |
1077 | rockchip_drm_psr_flush(crtc); | |
1078 | } | |
1079 | ||
1080 | static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = { | |
1081 | .enable = vop_crtc_enable, | |
1082 | .disable = vop_crtc_disable, | |
1083 | .mode_fixup = vop_crtc_mode_fixup, | |
1084 | .atomic_flush = vop_crtc_atomic_flush, | |
1085 | .atomic_begin = vop_crtc_atomic_begin, | |
1086 | }; | |
1087 | ||
1088 | static void vop_crtc_destroy(struct drm_crtc *crtc) | |
1089 | { | |
1090 | drm_crtc_cleanup(crtc); | |
1091 | } | |
1092 | ||
1093 | static void vop_crtc_reset(struct drm_crtc *crtc) | |
1094 | { | |
1095 | if (crtc->state) | |
1096 | __drm_atomic_helper_crtc_destroy_state(crtc->state); | |
1097 | kfree(crtc->state); | |
1098 | ||
1099 | crtc->state = kzalloc(sizeof(struct rockchip_crtc_state), GFP_KERNEL); | |
1100 | if (crtc->state) | |
1101 | crtc->state->crtc = crtc; | |
1102 | } | |
1103 | ||
1104 | static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc) | |
1105 | { | |
1106 | struct rockchip_crtc_state *rockchip_state; | |
1107 | ||
1108 | rockchip_state = kzalloc(sizeof(*rockchip_state), GFP_KERNEL); | |
1109 | if (!rockchip_state) | |
1110 | return NULL; | |
1111 | ||
1112 | __drm_atomic_helper_crtc_duplicate_state(crtc, &rockchip_state->base); | |
1113 | return &rockchip_state->base; | |
1114 | } | |
1115 | ||
1116 | static void vop_crtc_destroy_state(struct drm_crtc *crtc, | |
1117 | struct drm_crtc_state *state) | |
1118 | { | |
1119 | struct rockchip_crtc_state *s = to_rockchip_crtc_state(state); | |
1120 | ||
1121 | __drm_atomic_helper_crtc_destroy_state(&s->base); | |
1122 | kfree(s); | |
1123 | } | |
1124 | ||
1125 | #ifdef CONFIG_DRM_ANALOGIX_DP | |
1126 | static struct drm_connector *vop_get_edp_connector(struct vop *vop) | |
1127 | { | |
1128 | struct drm_connector *connector; | |
1129 | struct drm_connector_list_iter conn_iter; | |
1130 | ||
1131 | drm_connector_list_iter_begin(vop->drm_dev, &conn_iter); | |
1132 | drm_for_each_connector_iter(connector, &conn_iter) { | |
1133 | if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { | |
1134 | drm_connector_list_iter_end(&conn_iter); | |
1135 | return connector; | |
1136 | } | |
1137 | } | |
1138 | drm_connector_list_iter_end(&conn_iter); | |
1139 | ||
1140 | return NULL; | |
1141 | } | |
1142 | ||
1143 | static int vop_crtc_set_crc_source(struct drm_crtc *crtc, | |
1144 | const char *source_name, size_t *values_cnt) | |
1145 | { | |
1146 | struct vop *vop = to_vop(crtc); | |
1147 | struct drm_connector *connector; | |
1148 | int ret; | |
1149 | ||
1150 | connector = vop_get_edp_connector(vop); | |
1151 | if (!connector) | |
1152 | return -EINVAL; | |
1153 | ||
1154 | *values_cnt = 3; | |
1155 | ||
1156 | if (source_name && strcmp(source_name, "auto") == 0) | |
1157 | ret = analogix_dp_start_crc(connector); | |
1158 | else if (!source_name) | |
1159 | ret = analogix_dp_stop_crc(connector); | |
1160 | else | |
1161 | ret = -EINVAL; | |
1162 | ||
1163 | return ret; | |
1164 | } | |
1165 | #else | |
1166 | static int vop_crtc_set_crc_source(struct drm_crtc *crtc, | |
1167 | const char *source_name, size_t *values_cnt) | |
1168 | { | |
1169 | return -ENODEV; | |
1170 | } | |
1171 | #endif | |
1172 | ||
1173 | static const struct drm_crtc_funcs vop_crtc_funcs = { | |
1174 | .set_config = drm_atomic_helper_set_config, | |
1175 | .page_flip = drm_atomic_helper_page_flip, | |
1176 | .destroy = vop_crtc_destroy, | |
1177 | .reset = vop_crtc_reset, | |
1178 | .atomic_duplicate_state = vop_crtc_duplicate_state, | |
1179 | .atomic_destroy_state = vop_crtc_destroy_state, | |
1180 | .enable_vblank = vop_crtc_enable_vblank, | |
1181 | .disable_vblank = vop_crtc_disable_vblank, | |
1182 | .set_crc_source = vop_crtc_set_crc_source, | |
1183 | }; | |
1184 | ||
1185 | static void vop_fb_unref_worker(struct drm_flip_work *work, void *val) | |
1186 | { | |
1187 | struct vop *vop = container_of(work, struct vop, fb_unref_work); | |
1188 | struct drm_framebuffer *fb = val; | |
1189 | ||
1190 | drm_crtc_vblank_put(&vop->crtc); | |
1191 | drm_framebuffer_unreference(fb); | |
1192 | } | |
1193 | ||
1194 | static void vop_handle_vblank(struct vop *vop) | |
1195 | { | |
1196 | struct drm_device *drm = vop->drm_dev; | |
1197 | struct drm_crtc *crtc = &vop->crtc; | |
1198 | unsigned long flags; | |
1199 | ||
1200 | spin_lock_irqsave(&drm->event_lock, flags); | |
1201 | if (vop->event) { | |
1202 | drm_crtc_send_vblank_event(crtc, vop->event); | |
1203 | drm_crtc_vblank_put(crtc); | |
1204 | vop->event = NULL; | |
1205 | } | |
1206 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
1207 | ||
1208 | if (test_and_clear_bit(VOP_PENDING_FB_UNREF, &vop->pending)) | |
1209 | drm_flip_work_commit(&vop->fb_unref_work, system_unbound_wq); | |
1210 | } | |
1211 | ||
1212 | static irqreturn_t vop_isr(int irq, void *data) | |
1213 | { | |
1214 | struct vop *vop = data; | |
1215 | struct drm_crtc *crtc = &vop->crtc; | |
1216 | uint32_t active_irqs; | |
1217 | unsigned long flags; | |
1218 | int ret = IRQ_NONE; | |
1219 | ||
1220 | /* | |
1221 | * interrupt register has interrupt status, enable and clear bits, we | |
1222 | * must hold irq_lock to avoid a race with enable/disable_vblank(). | |
1223 | */ | |
1224 | spin_lock_irqsave(&vop->irq_lock, flags); | |
1225 | ||
1226 | active_irqs = VOP_INTR_GET_TYPE(vop, status, INTR_MASK); | |
1227 | /* Clear all active interrupt sources */ | |
1228 | if (active_irqs) | |
1229 | VOP_INTR_SET_TYPE(vop, clear, active_irqs, 1); | |
1230 | ||
1231 | spin_unlock_irqrestore(&vop->irq_lock, flags); | |
1232 | ||
1233 | /* This is expected for vop iommu irqs, since the irq is shared */ | |
1234 | if (!active_irqs) | |
1235 | return IRQ_NONE; | |
1236 | ||
1237 | if (active_irqs & DSP_HOLD_VALID_INTR) { | |
1238 | complete(&vop->dsp_hold_completion); | |
1239 | active_irqs &= ~DSP_HOLD_VALID_INTR; | |
1240 | ret = IRQ_HANDLED; | |
1241 | } | |
1242 | ||
1243 | if (active_irqs & LINE_FLAG_INTR) { | |
1244 | complete(&vop->line_flag_completion); | |
1245 | active_irqs &= ~LINE_FLAG_INTR; | |
1246 | ret = IRQ_HANDLED; | |
1247 | } | |
1248 | ||
1249 | if (active_irqs & FS_INTR) { | |
1250 | drm_crtc_handle_vblank(crtc); | |
1251 | vop_handle_vblank(vop); | |
1252 | active_irqs &= ~FS_INTR; | |
1253 | ret = IRQ_HANDLED; | |
1254 | } | |
1255 | ||
1256 | /* Unhandled irqs are spurious. */ | |
1257 | if (active_irqs) | |
1258 | DRM_DEV_ERROR(vop->dev, "Unknown VOP IRQs: %#02x\n", | |
1259 | active_irqs); | |
1260 | ||
1261 | return ret; | |
1262 | } | |
1263 | ||
1264 | static int vop_create_crtc(struct vop *vop) | |
1265 | { | |
1266 | const struct vop_data *vop_data = vop->data; | |
1267 | struct device *dev = vop->dev; | |
1268 | struct drm_device *drm_dev = vop->drm_dev; | |
1269 | struct drm_plane *primary = NULL, *cursor = NULL, *plane, *tmp; | |
1270 | struct drm_crtc *crtc = &vop->crtc; | |
1271 | struct device_node *port; | |
1272 | int ret; | |
1273 | int i; | |
1274 | ||
1275 | /* | |
1276 | * Create drm_plane for primary and cursor planes first, since we need | |
1277 | * to pass them to drm_crtc_init_with_planes, which sets the | |
1278 | * "possible_crtcs" to the newly initialized crtc. | |
1279 | */ | |
1280 | for (i = 0; i < vop_data->win_size; i++) { | |
1281 | struct vop_win *vop_win = &vop->win[i]; | |
1282 | const struct vop_win_data *win_data = vop_win->data; | |
1283 | ||
1284 | if (win_data->type != DRM_PLANE_TYPE_PRIMARY && | |
1285 | win_data->type != DRM_PLANE_TYPE_CURSOR) | |
1286 | continue; | |
1287 | ||
1288 | ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base, | |
1289 | 0, &vop_plane_funcs, | |
1290 | win_data->phy->data_formats, | |
1291 | win_data->phy->nformats, | |
1292 | win_data->type, NULL); | |
1293 | if (ret) { | |
1294 | DRM_DEV_ERROR(vop->dev, "failed to init plane %d\n", | |
1295 | ret); | |
1296 | goto err_cleanup_planes; | |
1297 | } | |
1298 | ||
1299 | plane = &vop_win->base; | |
1300 | drm_plane_helper_add(plane, &plane_helper_funcs); | |
1301 | if (plane->type == DRM_PLANE_TYPE_PRIMARY) | |
1302 | primary = plane; | |
1303 | else if (plane->type == DRM_PLANE_TYPE_CURSOR) | |
1304 | cursor = plane; | |
1305 | } | |
1306 | ||
1307 | ret = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor, | |
1308 | &vop_crtc_funcs, NULL); | |
1309 | if (ret) | |
1310 | goto err_cleanup_planes; | |
1311 | ||
1312 | drm_crtc_helper_add(crtc, &vop_crtc_helper_funcs); | |
1313 | ||
1314 | /* | |
1315 | * Create drm_planes for overlay windows with possible_crtcs restricted | |
1316 | * to the newly created crtc. | |
1317 | */ | |
1318 | for (i = 0; i < vop_data->win_size; i++) { | |
1319 | struct vop_win *vop_win = &vop->win[i]; | |
1320 | const struct vop_win_data *win_data = vop_win->data; | |
1321 | unsigned long possible_crtcs = 1 << drm_crtc_index(crtc); | |
1322 | ||
1323 | if (win_data->type != DRM_PLANE_TYPE_OVERLAY) | |
1324 | continue; | |
1325 | ||
1326 | ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base, | |
1327 | possible_crtcs, | |
1328 | &vop_plane_funcs, | |
1329 | win_data->phy->data_formats, | |
1330 | win_data->phy->nformats, | |
1331 | win_data->type, NULL); | |
1332 | if (ret) { | |
1333 | DRM_DEV_ERROR(vop->dev, "failed to init overlay %d\n", | |
1334 | ret); | |
1335 | goto err_cleanup_crtc; | |
1336 | } | |
1337 | drm_plane_helper_add(&vop_win->base, &plane_helper_funcs); | |
1338 | } | |
1339 | ||
1340 | port = of_get_child_by_name(dev->of_node, "port"); | |
1341 | if (!port) { | |
1342 | DRM_DEV_ERROR(vop->dev, "no port node found in %s\n", | |
1343 | dev->of_node->full_name); | |
1344 | ret = -ENOENT; | |
1345 | goto err_cleanup_crtc; | |
1346 | } | |
1347 | ||
1348 | drm_flip_work_init(&vop->fb_unref_work, "fb_unref", | |
1349 | vop_fb_unref_worker); | |
1350 | ||
1351 | init_completion(&vop->dsp_hold_completion); | |
1352 | init_completion(&vop->line_flag_completion); | |
1353 | crtc->port = port; | |
1354 | ||
1355 | return 0; | |
1356 | ||
1357 | err_cleanup_crtc: | |
1358 | drm_crtc_cleanup(crtc); | |
1359 | err_cleanup_planes: | |
1360 | list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list, | |
1361 | head) | |
1362 | drm_plane_cleanup(plane); | |
1363 | return ret; | |
1364 | } | |
1365 | ||
1366 | static void vop_destroy_crtc(struct vop *vop) | |
1367 | { | |
1368 | struct drm_crtc *crtc = &vop->crtc; | |
1369 | struct drm_device *drm_dev = vop->drm_dev; | |
1370 | struct drm_plane *plane, *tmp; | |
1371 | ||
1372 | of_node_put(crtc->port); | |
1373 | ||
1374 | /* | |
1375 | * We need to cleanup the planes now. Why? | |
1376 | * | |
1377 | * The planes are "&vop->win[i].base". That means the memory is | |
1378 | * all part of the big "struct vop" chunk of memory. That memory | |
1379 | * was devm allocated and associated with this component. We need to | |
1380 | * free it ourselves before vop_unbind() finishes. | |
1381 | */ | |
1382 | list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list, | |
1383 | head) | |
1384 | vop_plane_destroy(plane); | |
1385 | ||
1386 | /* | |
1387 | * Destroy CRTC after vop_plane_destroy() since vop_disable_plane() | |
1388 | * references the CRTC. | |
1389 | */ | |
1390 | drm_crtc_cleanup(crtc); | |
1391 | drm_flip_work_cleanup(&vop->fb_unref_work); | |
1392 | } | |
1393 | ||
1394 | static int vop_initial(struct vop *vop) | |
1395 | { | |
1396 | const struct vop_data *vop_data = vop->data; | |
1397 | const struct vop_reg_data *init_table = vop_data->init_table; | |
1398 | struct reset_control *ahb_rst; | |
1399 | int i, ret; | |
1400 | ||
1401 | vop->hclk = devm_clk_get(vop->dev, "hclk_vop"); | |
1402 | if (IS_ERR(vop->hclk)) { | |
1403 | dev_err(vop->dev, "failed to get hclk source\n"); | |
1404 | return PTR_ERR(vop->hclk); | |
1405 | } | |
1406 | vop->aclk = devm_clk_get(vop->dev, "aclk_vop"); | |
1407 | if (IS_ERR(vop->aclk)) { | |
1408 | dev_err(vop->dev, "failed to get aclk source\n"); | |
1409 | return PTR_ERR(vop->aclk); | |
1410 | } | |
1411 | vop->dclk = devm_clk_get(vop->dev, "dclk_vop"); | |
1412 | if (IS_ERR(vop->dclk)) { | |
1413 | dev_err(vop->dev, "failed to get dclk source\n"); | |
1414 | return PTR_ERR(vop->dclk); | |
1415 | } | |
1416 | ||
1417 | ret = pm_runtime_get_sync(vop->dev); | |
1418 | if (ret < 0) { | |
1419 | dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); | |
1420 | return ret; | |
1421 | } | |
1422 | ||
1423 | ret = clk_prepare(vop->dclk); | |
1424 | if (ret < 0) { | |
1425 | dev_err(vop->dev, "failed to prepare dclk\n"); | |
1426 | goto err_put_pm_runtime; | |
1427 | } | |
1428 | ||
1429 | /* Enable both the hclk and aclk to setup the vop */ | |
1430 | ret = clk_prepare_enable(vop->hclk); | |
1431 | if (ret < 0) { | |
1432 | dev_err(vop->dev, "failed to prepare/enable hclk\n"); | |
1433 | goto err_unprepare_dclk; | |
1434 | } | |
1435 | ||
1436 | ret = clk_prepare_enable(vop->aclk); | |
1437 | if (ret < 0) { | |
1438 | dev_err(vop->dev, "failed to prepare/enable aclk\n"); | |
1439 | goto err_disable_hclk; | |
1440 | } | |
1441 | ||
1442 | /* | |
1443 | * do hclk_reset, reset all vop registers. | |
1444 | */ | |
1445 | ahb_rst = devm_reset_control_get(vop->dev, "ahb"); | |
1446 | if (IS_ERR(ahb_rst)) { | |
1447 | dev_err(vop->dev, "failed to get ahb reset\n"); | |
1448 | ret = PTR_ERR(ahb_rst); | |
1449 | goto err_disable_aclk; | |
1450 | } | |
1451 | reset_control_assert(ahb_rst); | |
1452 | usleep_range(10, 20); | |
1453 | reset_control_deassert(ahb_rst); | |
1454 | ||
1455 | memcpy(vop->regsbak, vop->regs, vop->len); | |
1456 | ||
1457 | for (i = 0; i < vop_data->table_size; i++) | |
1458 | vop_writel(vop, init_table[i].offset, init_table[i].value); | |
1459 | ||
1460 | for (i = 0; i < vop_data->win_size; i++) { | |
1461 | const struct vop_win_data *win = &vop_data->win[i]; | |
1462 | ||
1463 | VOP_WIN_SET(vop, win, enable, 0); | |
1464 | } | |
1465 | ||
1466 | vop_cfg_done(vop); | |
1467 | ||
1468 | /* | |
1469 | * do dclk_reset, let all config take affect. | |
1470 | */ | |
1471 | vop->dclk_rst = devm_reset_control_get(vop->dev, "dclk"); | |
1472 | if (IS_ERR(vop->dclk_rst)) { | |
1473 | dev_err(vop->dev, "failed to get dclk reset\n"); | |
1474 | ret = PTR_ERR(vop->dclk_rst); | |
1475 | goto err_disable_aclk; | |
1476 | } | |
1477 | reset_control_assert(vop->dclk_rst); | |
1478 | usleep_range(10, 20); | |
1479 | reset_control_deassert(vop->dclk_rst); | |
1480 | ||
1481 | clk_disable(vop->hclk); | |
1482 | clk_disable(vop->aclk); | |
1483 | ||
1484 | vop->is_enabled = false; | |
1485 | ||
1486 | pm_runtime_put_sync(vop->dev); | |
1487 | ||
1488 | return 0; | |
1489 | ||
1490 | err_disable_aclk: | |
1491 | clk_disable_unprepare(vop->aclk); | |
1492 | err_disable_hclk: | |
1493 | clk_disable_unprepare(vop->hclk); | |
1494 | err_unprepare_dclk: | |
1495 | clk_unprepare(vop->dclk); | |
1496 | err_put_pm_runtime: | |
1497 | pm_runtime_put_sync(vop->dev); | |
1498 | return ret; | |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * Initialize the vop->win array elements. | |
1503 | */ | |
1504 | static void vop_win_init(struct vop *vop) | |
1505 | { | |
1506 | const struct vop_data *vop_data = vop->data; | |
1507 | unsigned int i; | |
1508 | ||
1509 | for (i = 0; i < vop_data->win_size; i++) { | |
1510 | struct vop_win *vop_win = &vop->win[i]; | |
1511 | const struct vop_win_data *win_data = &vop_data->win[i]; | |
1512 | ||
1513 | vop_win->data = win_data; | |
1514 | vop_win->vop = vop; | |
1515 | } | |
1516 | } | |
1517 | ||
1518 | /** | |
1519 | * rockchip_drm_wait_vact_end | |
1520 | * @crtc: CRTC to enable line flag | |
1521 | * @mstimeout: millisecond for timeout | |
1522 | * | |
1523 | * Wait for vact_end line flag irq or timeout. | |
1524 | * | |
1525 | * Returns: | |
1526 | * Zero on success, negative errno on failure. | |
1527 | */ | |
1528 | int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout) | |
1529 | { | |
1530 | struct vop *vop = to_vop(crtc); | |
1531 | unsigned long jiffies_left; | |
1532 | ||
1533 | if (!crtc || !vop->is_enabled) | |
1534 | return -ENODEV; | |
1535 | ||
1536 | if (mstimeout <= 0) | |
1537 | return -EINVAL; | |
1538 | ||
1539 | if (vop_line_flag_irq_is_enabled(vop)) | |
1540 | return -EBUSY; | |
1541 | ||
1542 | reinit_completion(&vop->line_flag_completion); | |
1543 | vop_line_flag_irq_enable(vop); | |
1544 | ||
1545 | jiffies_left = wait_for_completion_timeout(&vop->line_flag_completion, | |
1546 | msecs_to_jiffies(mstimeout)); | |
1547 | vop_line_flag_irq_disable(vop); | |
1548 | ||
1549 | if (jiffies_left == 0) { | |
1550 | dev_err(vop->dev, "Timeout waiting for IRQ\n"); | |
1551 | return -ETIMEDOUT; | |
1552 | } | |
1553 | ||
1554 | return 0; | |
1555 | } | |
1556 | EXPORT_SYMBOL(rockchip_drm_wait_vact_end); | |
1557 | ||
1558 | static int vop_bind(struct device *dev, struct device *master, void *data) | |
1559 | { | |
1560 | struct platform_device *pdev = to_platform_device(dev); | |
1561 | const struct vop_data *vop_data; | |
1562 | struct drm_device *drm_dev = data; | |
1563 | struct vop *vop; | |
1564 | struct resource *res; | |
1565 | size_t alloc_size; | |
1566 | int ret, irq; | |
1567 | ||
1568 | vop_data = of_device_get_match_data(dev); | |
1569 | if (!vop_data) | |
1570 | return -ENODEV; | |
1571 | ||
1572 | /* Allocate vop struct and its vop_win array */ | |
1573 | alloc_size = sizeof(*vop) + sizeof(*vop->win) * vop_data->win_size; | |
1574 | vop = devm_kzalloc(dev, alloc_size, GFP_KERNEL); | |
1575 | if (!vop) | |
1576 | return -ENOMEM; | |
1577 | ||
1578 | vop->dev = dev; | |
1579 | vop->data = vop_data; | |
1580 | vop->drm_dev = drm_dev; | |
1581 | dev_set_drvdata(dev, vop); | |
1582 | ||
1583 | vop_win_init(vop); | |
1584 | ||
1585 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1586 | vop->len = resource_size(res); | |
1587 | vop->regs = devm_ioremap_resource(dev, res); | |
1588 | if (IS_ERR(vop->regs)) | |
1589 | return PTR_ERR(vop->regs); | |
1590 | ||
1591 | vop->regsbak = devm_kzalloc(dev, vop->len, GFP_KERNEL); | |
1592 | if (!vop->regsbak) | |
1593 | return -ENOMEM; | |
1594 | ||
1595 | irq = platform_get_irq(pdev, 0); | |
1596 | if (irq < 0) { | |
1597 | dev_err(dev, "cannot find irq for vop\n"); | |
1598 | return irq; | |
1599 | } | |
1600 | vop->irq = (unsigned int)irq; | |
1601 | ||
1602 | spin_lock_init(&vop->reg_lock); | |
1603 | spin_lock_init(&vop->irq_lock); | |
1604 | ||
1605 | mutex_init(&vop->vsync_mutex); | |
1606 | ||
1607 | ret = devm_request_irq(dev, vop->irq, vop_isr, | |
1608 | IRQF_SHARED, dev_name(dev), vop); | |
1609 | if (ret) | |
1610 | return ret; | |
1611 | ||
1612 | /* IRQ is initially disabled; it gets enabled in power_on */ | |
1613 | disable_irq(vop->irq); | |
1614 | ||
1615 | ret = vop_create_crtc(vop); | |
1616 | if (ret) | |
1617 | goto err_enable_irq; | |
1618 | ||
1619 | pm_runtime_enable(&pdev->dev); | |
1620 | ||
1621 | ret = vop_initial(vop); | |
1622 | if (ret < 0) { | |
1623 | dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret); | |
1624 | goto err_disable_pm_runtime; | |
1625 | } | |
1626 | ||
1627 | return 0; | |
1628 | ||
1629 | err_disable_pm_runtime: | |
1630 | pm_runtime_disable(&pdev->dev); | |
1631 | vop_destroy_crtc(vop); | |
1632 | err_enable_irq: | |
1633 | enable_irq(vop->irq); /* To balance out the disable_irq above */ | |
1634 | return ret; | |
1635 | } | |
1636 | ||
1637 | static void vop_unbind(struct device *dev, struct device *master, void *data) | |
1638 | { | |
1639 | struct vop *vop = dev_get_drvdata(dev); | |
1640 | ||
1641 | pm_runtime_disable(dev); | |
1642 | vop_destroy_crtc(vop); | |
1643 | ||
1644 | clk_unprepare(vop->aclk); | |
1645 | clk_unprepare(vop->hclk); | |
1646 | clk_unprepare(vop->dclk); | |
1647 | } | |
1648 | ||
1649 | const struct component_ops vop_component_ops = { | |
1650 | .bind = vop_bind, | |
1651 | .unbind = vop_unbind, | |
1652 | }; | |
1653 | EXPORT_SYMBOL_GPL(vop_component_ops); |