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09c730a4 SI |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2010 | |
3 | * | |
4 | * Author: Jayeeta Banerjee <jayeeta.banerjee@stericsson.com> | |
5 | * Author: Sundar Iyer <sundar.iyer@stericsson.com> | |
6 | * | |
7 | * License Terms: GNU General Public License, version 2 | |
8 | * | |
9 | * TC35893 MFD Keypad Controller driver | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
09c730a4 SI |
13 | #include <linux/interrupt.h> |
14 | #include <linux/input.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/input/matrix_keypad.h> | |
17 | #include <linux/i2c.h> | |
18 | #include <linux/slab.h> | |
19 | #include <linux/mfd/tc3589x.h> | |
be972177 | 20 | #include <linux/device.h> |
09c730a4 SI |
21 | |
22 | /* Maximum supported keypad matrix row/columns size */ | |
23 | #define TC3589x_MAX_KPROW 8 | |
24 | #define TC3589x_MAX_KPCOL 12 | |
25 | ||
26 | /* keypad related Constants */ | |
27 | #define TC3589x_MAX_DEBOUNCE_SETTLE 0xFF | |
28 | #define DEDICATED_KEY_VAL 0xFF | |
29 | ||
30 | /* Pull up/down masks */ | |
31 | #define TC3589x_NO_PULL_MASK 0x0 | |
32 | #define TC3589x_PULL_DOWN_MASK 0x1 | |
33 | #define TC3589x_PULL_UP_MASK 0x2 | |
34 | #define TC3589x_PULLUP_ALL_MASK 0xAA | |
c95d6d96 | 35 | #define TC3589x_IO_PULL_VAL(index, mask) ((mask)<<((index)%4)*2) |
09c730a4 SI |
36 | |
37 | /* Bit masks for IOCFG register */ | |
38 | #define IOCFG_BALLCFG 0x01 | |
39 | #define IOCFG_IG 0x08 | |
40 | ||
41 | #define KP_EVCODE_COL_MASK 0x0F | |
42 | #define KP_EVCODE_ROW_MASK 0x70 | |
43 | #define KP_RELEASE_EVT_MASK 0x80 | |
44 | ||
45 | #define KP_ROW_SHIFT 4 | |
46 | ||
47 | #define KP_NO_VALID_KEY_MASK 0x7F | |
48 | ||
49 | /* bit masks for RESTCTRL register */ | |
50 | #define TC3589x_KBDRST 0x2 | |
51 | #define TC3589x_IRQRST 0x10 | |
52 | #define TC3589x_RESET_ALL 0x1B | |
53 | ||
54 | /* KBDMFS register bit mask */ | |
55 | #define TC3589x_KBDMFS_EN 0x1 | |
56 | ||
57 | /* CLKEN register bitmask */ | |
58 | #define KPD_CLK_EN 0x1 | |
59 | ||
60 | /* RSTINTCLR register bit mask */ | |
61 | #define IRQ_CLEAR 0x1 | |
62 | ||
63 | /* bit masks for keyboard interrupts*/ | |
64 | #define TC3589x_EVT_LOSS_INT 0x8 | |
65 | #define TC3589x_EVT_INT 0x4 | |
66 | #define TC3589x_KBD_LOSS_INT 0x2 | |
67 | #define TC3589x_KBD_INT 0x1 | |
68 | ||
69 | /* bit masks for keyboard interrupt clear*/ | |
70 | #define TC3589x_EVT_INT_CLR 0x2 | |
71 | #define TC3589x_KBD_INT_CLR 0x1 | |
72 | ||
8b6f53c2 LW |
73 | /** |
74 | * struct tc35893_keypad_platform_data - platform specific keypad data | |
75 | * @keymap_data: matrix scan code table for keycodes | |
76 | * @krow: mask for available rows, value is 0xFF | |
77 | * @kcol: mask for available columns, value is 0xFF | |
78 | * @debounce_period: platform specific debounce time | |
79 | * @settle_time: platform specific settle down time | |
80 | * @irqtype: type of interrupt, falling or rising edge | |
81 | * @enable_wakeup: specifies if keypad event can wake up system from sleep | |
82 | * @no_autorepeat: flag for auto repetition | |
83 | */ | |
84 | struct tc3589x_keypad_platform_data { | |
85 | const struct matrix_keymap_data *keymap_data; | |
86 | u8 krow; | |
87 | u8 kcol; | |
88 | u8 debounce_period; | |
89 | u8 settle_time; | |
90 | unsigned long irqtype; | |
91 | bool enable_wakeup; | |
92 | bool no_autorepeat; | |
93 | }; | |
94 | ||
09c730a4 SI |
95 | /** |
96 | * struct tc_keypad - data structure used by keypad driver | |
dab78d79 | 97 | * @tc3589x: pointer to tc35893 |
09c730a4 SI |
98 | * @input: pointer to input device object |
99 | * @board: keypad platform device | |
100 | * @krow: number of rows | |
1932811f | 101 | * @kcol: number of columns |
09c730a4 | 102 | * @keymap: matrix scan code table for keycodes |
dab78d79 | 103 | * @keypad_stopped: holds keypad status |
09c730a4 SI |
104 | */ |
105 | struct tc_keypad { | |
106 | struct tc3589x *tc3589x; | |
107 | struct input_dev *input; | |
108 | const struct tc3589x_keypad_platform_data *board; | |
109 | unsigned int krow; | |
110 | unsigned int kcol; | |
39735019 | 111 | unsigned short *keymap; |
09c730a4 SI |
112 | bool keypad_stopped; |
113 | }; | |
114 | ||
9299c08d | 115 | static int tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad) |
09c730a4 SI |
116 | { |
117 | int ret; | |
118 | struct tc3589x *tc3589x = keypad->tc3589x; | |
71f3d070 DT |
119 | const struct tc3589x_keypad_platform_data *board = keypad->board; |
120 | ||
121 | /* validate platform configuration */ | |
122 | if (board->kcol > TC3589x_MAX_KPCOL || board->krow > TC3589x_MAX_KPROW) | |
09c730a4 SI |
123 | return -EINVAL; |
124 | ||
125 | /* configure KBDSIZE 4 LSbits for cols and 4 MSbits for rows */ | |
126 | ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSIZE, | |
71f3d070 | 127 | (board->krow << KP_ROW_SHIFT) | board->kcol); |
09c730a4 SI |
128 | if (ret < 0) |
129 | return ret; | |
130 | ||
131 | /* configure dedicated key config, no dedicated key selected */ | |
132 | ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_LSB, DEDICATED_KEY_VAL); | |
133 | if (ret < 0) | |
134 | return ret; | |
135 | ||
136 | ret = tc3589x_reg_write(tc3589x, TC3589x_KBCFG_MSB, DEDICATED_KEY_VAL); | |
137 | if (ret < 0) | |
138 | return ret; | |
139 | ||
140 | /* Configure settle time */ | |
71f3d070 DT |
141 | ret = tc3589x_reg_write(tc3589x, TC3589x_KBDSETTLE_REG, |
142 | board->settle_time); | |
09c730a4 SI |
143 | if (ret < 0) |
144 | return ret; | |
145 | ||
146 | /* Configure debounce time */ | |
71f3d070 DT |
147 | ret = tc3589x_reg_write(tc3589x, TC3589x_KBDBOUNCE, |
148 | board->debounce_period); | |
09c730a4 SI |
149 | if (ret < 0) |
150 | return ret; | |
151 | ||
152 | /* Start of initialise keypad GPIOs */ | |
153 | ret = tc3589x_set_bits(tc3589x, TC3589x_IOCFG, 0x0, IOCFG_IG); | |
154 | if (ret < 0) | |
155 | return ret; | |
156 | ||
157 | /* Configure pull-up resistors for all row GPIOs */ | |
158 | ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_LSB, | |
159 | TC3589x_PULLUP_ALL_MASK); | |
160 | if (ret < 0) | |
161 | return ret; | |
162 | ||
163 | ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG0_MSB, | |
164 | TC3589x_PULLUP_ALL_MASK); | |
165 | if (ret < 0) | |
166 | return ret; | |
167 | ||
168 | /* Configure pull-up resistors for all column GPIOs */ | |
169 | ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_LSB, | |
170 | TC3589x_PULLUP_ALL_MASK); | |
171 | if (ret < 0) | |
172 | return ret; | |
173 | ||
174 | ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG1_MSB, | |
175 | TC3589x_PULLUP_ALL_MASK); | |
176 | if (ret < 0) | |
177 | return ret; | |
178 | ||
179 | ret = tc3589x_reg_write(tc3589x, TC3589x_IOPULLCFG2_LSB, | |
180 | TC3589x_PULLUP_ALL_MASK); | |
181 | ||
182 | return ret; | |
183 | } | |
184 | ||
185 | #define TC35893_DATA_REGS 4 | |
186 | #define TC35893_KEYCODE_FIFO_EMPTY 0x7f | |
187 | #define TC35893_KEYCODE_FIFO_CLEAR 0xff | |
188 | #define TC35893_KEYPAD_ROW_SHIFT 0x3 | |
189 | ||
190 | static irqreturn_t tc3589x_keypad_irq(int irq, void *dev) | |
191 | { | |
192 | struct tc_keypad *keypad = dev; | |
193 | struct tc3589x *tc3589x = keypad->tc3589x; | |
194 | u8 i, row_index, col_index, kbd_code, up; | |
195 | u8 code; | |
196 | ||
197 | for (i = 0; i < TC35893_DATA_REGS * 2; i++) { | |
198 | kbd_code = tc3589x_reg_read(tc3589x, TC3589x_EVTCODE_FIFO); | |
199 | ||
200 | /* loop till fifo is empty and no more keys are pressed */ | |
201 | if (kbd_code == TC35893_KEYCODE_FIFO_EMPTY || | |
202 | kbd_code == TC35893_KEYCODE_FIFO_CLEAR) | |
203 | continue; | |
204 | ||
205 | /* valid key is found */ | |
206 | col_index = kbd_code & KP_EVCODE_COL_MASK; | |
207 | row_index = (kbd_code & KP_EVCODE_ROW_MASK) >> KP_ROW_SHIFT; | |
208 | code = MATRIX_SCAN_CODE(row_index, col_index, | |
209 | TC35893_KEYPAD_ROW_SHIFT); | |
210 | up = kbd_code & KP_RELEASE_EVT_MASK; | |
211 | ||
212 | input_event(keypad->input, EV_MSC, MSC_SCAN, code); | |
213 | input_report_key(keypad->input, keypad->keymap[code], !up); | |
214 | input_sync(keypad->input); | |
215 | } | |
216 | ||
217 | /* clear IRQ */ | |
218 | tc3589x_set_bits(tc3589x, TC3589x_KBDIC, | |
219 | 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR); | |
220 | /* enable IRQ */ | |
221 | tc3589x_set_bits(tc3589x, TC3589x_KBDMSK, | |
222 | 0x0, TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT); | |
223 | ||
224 | return IRQ_HANDLED; | |
225 | } | |
226 | ||
227 | static int tc3589x_keypad_enable(struct tc_keypad *keypad) | |
228 | { | |
229 | struct tc3589x *tc3589x = keypad->tc3589x; | |
230 | int ret; | |
231 | ||
232 | /* pull the keypad module out of reset */ | |
233 | ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x0); | |
234 | if (ret < 0) | |
235 | return ret; | |
236 | ||
237 | /* configure KBDMFS */ | |
238 | ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMFS, 0x0, TC3589x_KBDMFS_EN); | |
239 | if (ret < 0) | |
240 | return ret; | |
241 | ||
242 | /* enable the keypad clock */ | |
243 | ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x0, KPD_CLK_EN); | |
244 | if (ret < 0) | |
245 | return ret; | |
246 | ||
247 | /* clear pending IRQs */ | |
248 | ret = tc3589x_set_bits(tc3589x, TC3589x_RSTINTCLR, 0x0, 0x1); | |
249 | if (ret < 0) | |
250 | return ret; | |
251 | ||
252 | /* enable the IRQs */ | |
253 | ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK, 0x0, | |
254 | TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT); | |
255 | if (ret < 0) | |
256 | return ret; | |
257 | ||
258 | keypad->keypad_stopped = false; | |
259 | ||
260 | return ret; | |
261 | } | |
262 | ||
263 | static int tc3589x_keypad_disable(struct tc_keypad *keypad) | |
264 | { | |
265 | struct tc3589x *tc3589x = keypad->tc3589x; | |
266 | int ret; | |
267 | ||
268 | /* clear IRQ */ | |
269 | ret = tc3589x_set_bits(tc3589x, TC3589x_KBDIC, | |
270 | 0x0, TC3589x_EVT_INT_CLR | TC3589x_KBD_INT_CLR); | |
271 | if (ret < 0) | |
272 | return ret; | |
273 | ||
274 | /* disable all interrupts */ | |
275 | ret = tc3589x_set_bits(tc3589x, TC3589x_KBDMSK, | |
276 | ~(TC3589x_EVT_LOSS_INT | TC3589x_EVT_INT), 0x0); | |
277 | if (ret < 0) | |
278 | return ret; | |
279 | ||
280 | /* disable the keypad module */ | |
281 | ret = tc3589x_set_bits(tc3589x, TC3589x_CLKEN, 0x1, 0x0); | |
282 | if (ret < 0) | |
283 | return ret; | |
284 | ||
285 | /* put the keypad module into reset */ | |
286 | ret = tc3589x_set_bits(tc3589x, TC3589x_RSTCTRL, TC3589x_KBDRST, 0x1); | |
287 | ||
288 | keypad->keypad_stopped = true; | |
289 | ||
290 | return ret; | |
291 | } | |
292 | ||
293 | static int tc3589x_keypad_open(struct input_dev *input) | |
294 | { | |
295 | int error; | |
296 | struct tc_keypad *keypad = input_get_drvdata(input); | |
297 | ||
298 | /* enable the keypad module */ | |
299 | error = tc3589x_keypad_enable(keypad); | |
300 | if (error < 0) { | |
301 | dev_err(&input->dev, "failed to enable keypad module\n"); | |
302 | return error; | |
303 | } | |
304 | ||
305 | error = tc3589x_keypad_init_key_hardware(keypad); | |
306 | if (error < 0) { | |
307 | dev_err(&input->dev, "failed to configure keypad module\n"); | |
308 | return error; | |
309 | } | |
310 | ||
311 | return 0; | |
312 | } | |
313 | ||
314 | static void tc3589x_keypad_close(struct input_dev *input) | |
315 | { | |
316 | struct tc_keypad *keypad = input_get_drvdata(input); | |
317 | ||
318 | /* disable the keypad module */ | |
319 | tc3589x_keypad_disable(keypad); | |
320 | } | |
321 | ||
7beebcb0 LW |
322 | static const struct tc3589x_keypad_platform_data * |
323 | tc3589x_keypad_of_probe(struct device *dev) | |
324 | { | |
325 | struct device_node *np = dev->of_node; | |
326 | struct tc3589x_keypad_platform_data *plat; | |
327 | u32 cols, rows; | |
328 | u32 debounce_ms; | |
329 | int proplen; | |
330 | ||
331 | if (!np) | |
332 | return ERR_PTR(-ENODEV); | |
333 | ||
334 | plat = devm_kzalloc(dev, sizeof(*plat), GFP_KERNEL); | |
335 | if (!plat) | |
336 | return ERR_PTR(-ENOMEM); | |
337 | ||
338 | of_property_read_u32(np, "keypad,num-columns", &cols); | |
339 | of_property_read_u32(np, "keypad,num-rows", &rows); | |
340 | plat->kcol = (u8) cols; | |
341 | plat->krow = (u8) rows; | |
342 | if (!plat->krow || !plat->kcol || | |
343 | plat->krow > TC_KPD_ROWS || plat->kcol > TC_KPD_COLUMNS) { | |
344 | dev_err(dev, | |
345 | "keypad columns/rows not properly specified (%ux%u)\n", | |
346 | plat->kcol, plat->krow); | |
347 | return ERR_PTR(-EINVAL); | |
348 | } | |
349 | ||
350 | if (!of_get_property(np, "linux,keymap", &proplen)) { | |
351 | dev_err(dev, "property linux,keymap not found\n"); | |
352 | return ERR_PTR(-ENOENT); | |
353 | } | |
354 | ||
355 | plat->no_autorepeat = of_property_read_bool(np, "linux,no-autorepeat"); | |
e571c73e DT |
356 | |
357 | plat->enable_wakeup = of_property_read_bool(np, "wakeup-source") || | |
358 | /* legacy name */ | |
359 | of_property_read_bool(np, "linux,wakeup"); | |
7beebcb0 LW |
360 | |
361 | /* The custom delay format is ms/16 */ | |
362 | of_property_read_u32(np, "debounce-delay-ms", &debounce_ms); | |
363 | if (debounce_ms) | |
364 | plat->debounce_period = debounce_ms * 16; | |
365 | else | |
366 | plat->debounce_period = TC_KPD_DEBOUNCE_PERIOD; | |
367 | ||
368 | plat->settle_time = TC_KPD_SETTLE_TIME; | |
369 | /* FIXME: should be property of the IRQ resource? */ | |
370 | plat->irqtype = IRQF_TRIGGER_FALLING; | |
371 | ||
372 | return plat; | |
373 | } | |
7beebcb0 | 374 | |
5298cc4c | 375 | static int tc3589x_keypad_probe(struct platform_device *pdev) |
09c730a4 SI |
376 | { |
377 | struct tc3589x *tc3589x = dev_get_drvdata(pdev->dev.parent); | |
378 | struct tc_keypad *keypad; | |
379 | struct input_dev *input; | |
380 | const struct tc3589x_keypad_platform_data *plat; | |
381 | int error, irq; | |
382 | ||
8b6f53c2 LW |
383 | plat = tc3589x_keypad_of_probe(&pdev->dev); |
384 | if (IS_ERR(plat)) { | |
385 | dev_err(&pdev->dev, "invalid keypad platform data\n"); | |
386 | return PTR_ERR(plat); | |
09c730a4 SI |
387 | } |
388 | ||
389 | irq = platform_get_irq(pdev, 0); | |
390 | if (irq < 0) | |
391 | return irq; | |
392 | ||
be972177 HS |
393 | keypad = devm_kzalloc(&pdev->dev, sizeof(struct tc_keypad), |
394 | GFP_KERNEL); | |
395 | if (!keypad) | |
396 | return -ENOMEM; | |
397 | ||
398 | input = devm_input_allocate_device(&pdev->dev); | |
399 | if (!input) { | |
400 | dev_err(&pdev->dev, "failed to allocate input device\n"); | |
401 | return -ENOMEM; | |
09c730a4 SI |
402 | } |
403 | ||
404 | keypad->board = plat; | |
405 | keypad->input = input; | |
406 | keypad->tc3589x = tc3589x; | |
407 | ||
408 | input->id.bustype = BUS_I2C; | |
409 | input->name = pdev->name; | |
410 | input->dev.parent = &pdev->dev; | |
411 | ||
09c730a4 SI |
412 | input->open = tc3589x_keypad_open; |
413 | input->close = tc3589x_keypad_close; | |
414 | ||
1932811f DT |
415 | error = matrix_keypad_build_keymap(plat->keymap_data, NULL, |
416 | TC3589x_MAX_KPROW, TC3589x_MAX_KPCOL, | |
39735019 | 417 | NULL, input); |
1932811f DT |
418 | if (error) { |
419 | dev_err(&pdev->dev, "Failed to build keymap\n"); | |
be972177 | 420 | return error; |
1932811f | 421 | } |
09c730a4 | 422 | |
39735019 RV |
423 | keypad->keymap = input->keycode; |
424 | ||
09c730a4 | 425 | input_set_capability(input, EV_MSC, MSC_SCAN); |
09c730a4 SI |
426 | if (!plat->no_autorepeat) |
427 | __set_bit(EV_REP, input->evbit); | |
428 | ||
1932811f | 429 | input_set_drvdata(input, keypad); |
09c730a4 | 430 | |
be972177 HS |
431 | tc3589x_keypad_disable(keypad); |
432 | ||
433 | error = devm_request_threaded_irq(&pdev->dev, irq, | |
434 | NULL, tc3589x_keypad_irq, | |
435 | plat->irqtype | IRQF_ONESHOT, | |
436 | "tc3589x-keypad", keypad); | |
437 | if (error) { | |
09c730a4 SI |
438 | dev_err(&pdev->dev, |
439 | "Could not allocate irq %d,error %d\n", | |
440 | irq, error); | |
be972177 | 441 | return error; |
09c730a4 SI |
442 | } |
443 | ||
444 | error = input_register_device(input); | |
445 | if (error) { | |
446 | dev_err(&pdev->dev, "Could not register input device\n"); | |
be972177 | 447 | return error; |
09c730a4 SI |
448 | } |
449 | ||
450 | /* let platform decide if keypad is a wakeup source or not */ | |
451 | device_init_wakeup(&pdev->dev, plat->enable_wakeup); | |
452 | device_set_wakeup_capable(&pdev->dev, plat->enable_wakeup); | |
453 | ||
454 | platform_set_drvdata(pdev, keypad); | |
455 | ||
09c730a4 SI |
456 | return 0; |
457 | } | |
458 | ||
53a2b81c | 459 | #ifdef CONFIG_PM_SLEEP |
09c730a4 SI |
460 | static int tc3589x_keypad_suspend(struct device *dev) |
461 | { | |
462 | struct platform_device *pdev = to_platform_device(dev); | |
463 | struct tc_keypad *keypad = platform_get_drvdata(pdev); | |
464 | int irq = platform_get_irq(pdev, 0); | |
465 | ||
466 | /* keypad is already off; we do nothing */ | |
467 | if (keypad->keypad_stopped) | |
468 | return 0; | |
469 | ||
470 | /* if device is not a wakeup source, disable it for powersave */ | |
471 | if (!device_may_wakeup(&pdev->dev)) | |
472 | tc3589x_keypad_disable(keypad); | |
473 | else | |
474 | enable_irq_wake(irq); | |
475 | ||
476 | return 0; | |
477 | } | |
478 | ||
479 | static int tc3589x_keypad_resume(struct device *dev) | |
480 | { | |
481 | struct platform_device *pdev = to_platform_device(dev); | |
482 | struct tc_keypad *keypad = platform_get_drvdata(pdev); | |
483 | int irq = platform_get_irq(pdev, 0); | |
484 | ||
485 | if (!keypad->keypad_stopped) | |
486 | return 0; | |
487 | ||
488 | /* enable the device to resume normal operations */ | |
489 | if (!device_may_wakeup(&pdev->dev)) | |
490 | tc3589x_keypad_enable(keypad); | |
491 | else | |
492 | disable_irq_wake(irq); | |
493 | ||
494 | return 0; | |
495 | } | |
09c730a4 SI |
496 | #endif |
497 | ||
53a2b81c DT |
498 | static SIMPLE_DEV_PM_OPS(tc3589x_keypad_dev_pm_ops, |
499 | tc3589x_keypad_suspend, tc3589x_keypad_resume); | |
500 | ||
09c730a4 | 501 | static struct platform_driver tc3589x_keypad_driver = { |
53a2b81c DT |
502 | .driver = { |
503 | .name = "tc3589x-keypad", | |
53a2b81c DT |
504 | .pm = &tc3589x_keypad_dev_pm_ops, |
505 | }, | |
506 | .probe = tc3589x_keypad_probe, | |
09c730a4 | 507 | }; |
5146c84f | 508 | module_platform_driver(tc3589x_keypad_driver); |
09c730a4 SI |
509 | |
510 | MODULE_LICENSE("GPL v2"); | |
511 | MODULE_AUTHOR("Jayeeta Banerjee/Sundar Iyer"); | |
512 | MODULE_DESCRIPTION("TC35893 Keypad Driver"); | |
aa58abc2 | 513 | MODULE_ALIAS("platform:tc3589x-keypad"); |