1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * drivers/media/i2c/tvp514x.c
4 *
5 * TI TVP5146/47 decoder driver
6 *
7 * Copyright (C) 2008 Texas Instruments Inc
8 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
9 *
10 * Contributors:
11 * Sivaraj R <sivaraj@ti.com>
12 * Brijesh R Jadav <brijesh.j@ti.com>
13 * Hardik Shah <hardik.shah@ti.com>
14 * Manjunath Hadli <mrh@ti.com>
15 * Karicheri Muralidharan <m-karicheri2@ti.com>
16 * Prabhakar Lad <prabhakar.lad@ti.com>
17 */
18
19#include <linux/delay.h>
20#include <linux/i2c.h>
21#include <linux/mod_devicetable.h>
22#include <linux/module.h>
23#include <linux/of.h>
24#include <linux/of_graph.h>
25#include <linux/slab.h>
26#include <linux/v4l2-mediabus.h>
27#include <linux/videodev2.h>
28
29#include <media/i2c/tvp514x.h>
30#include <media/media-entity.h>
31#include <media/v4l2-async.h>
32#include <media/v4l2-common.h>
33#include <media/v4l2-ctrls.h>
34#include <media/v4l2-device.h>
35#include <media/v4l2-fwnode.h>
36#include <media/v4l2-mediabus.h>
37
38#include "tvp514x_regs.h"
39
40/* Private macros for TVP */
41#define I2C_RETRY_COUNT (5)
42#define LOCK_RETRY_COUNT (5)
43#define LOCK_RETRY_DELAY (200)
44
45/* Debug functions */
46static bool debug;
47module_param(debug, bool, 0644);
48MODULE_PARM_DESC(debug, "Debug level (0-1)");
49
50MODULE_AUTHOR("Texas Instruments");
51MODULE_DESCRIPTION("TVP514X linux decoder driver");
52MODULE_LICENSE("GPL");
53
54/* enum tvp514x_std - enum for supported standards */
55enum tvp514x_std {
56 STD_NTSC_MJ = 0,
57 STD_PAL_BDGHIN,
58 STD_INVALID
59};
60
61/**
62 * struct tvp514x_std_info - Structure to store standard information
63 * @width: Line width in pixels
64 * @height:Number of active lines
65 * @video_std: Value to write in REG_VIDEO_STD register
66 * @standard: v4l2 standard structure information
67 */
68struct tvp514x_std_info {
69 unsigned long width;
70 unsigned long height;
71 u8 video_std;
72 struct v4l2_standard standard;
73};
74
75static struct tvp514x_reg tvp514x_reg_list_default[0x40];
76
77static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable);
78/**
79 * struct tvp514x_decoder - TVP5146/47 decoder object
80 * @sd: Subdevice Slave handle
81 * @hdl: embedded &struct v4l2_ctrl_handler
82 * @tvp514x_regs: copy of hw's regs with preset values.
83 * @pdata: Board specific
84 * @ver: Chip version
85 * @streaming: TVP5146/47 decoder streaming - enabled or disabled.
86 * @pix: Current pixel format
87 * @num_fmts: Number of formats
88 * @fmt_list: Format list
89 * @current_std: Current standard
90 * @num_stds: Number of standards
91 * @std_list: Standards list
92 * @input: Input routing at chip level
93 * @output: Output routing at chip level
94 * @pad: subdev media pad associated with the decoder
95 * @format: media bus frame format
96 * @int_seq: driver's register init sequence
97 */
98struct tvp514x_decoder {
99 struct v4l2_subdev sd;
100 struct v4l2_ctrl_handler hdl;
101 struct tvp514x_reg tvp514x_regs[ARRAY_SIZE(tvp514x_reg_list_default)];
102 const struct tvp514x_platform_data *pdata;
103
104 int ver;
105 int streaming;
106
107 struct v4l2_pix_format pix;
108 int num_fmts;
109 const struct v4l2_fmtdesc *fmt_list;
110
111 enum tvp514x_std current_std;
112 int num_stds;
113 const struct tvp514x_std_info *std_list;
114 /* Input and Output Routing parameters */
115 u32 input;
116 u32 output;
117
118 /* mc related members */
119 struct media_pad pad;
120 struct v4l2_mbus_framefmt format;
121
122 const struct tvp514x_reg *int_seq;
123};
124
125/* TVP514x default register values */
126static struct tvp514x_reg tvp514x_reg_list_default[] = {
127 /* Composite selected */
128 {TOK_WRITE, REG_INPUT_SEL, 0x05},
129 {TOK_WRITE, REG_AFE_GAIN_CTRL, 0x0F},
130 /* Auto mode */
131 {TOK_WRITE, REG_VIDEO_STD, 0x00},
132 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
133 {TOK_SKIP, REG_AUTOSWITCH_MASK, 0x3F},
134 {TOK_WRITE, REG_COLOR_KILLER, 0x10},
135 {TOK_WRITE, REG_LUMA_CONTROL1, 0x00},
136 {TOK_WRITE, REG_LUMA_CONTROL2, 0x00},
137 {TOK_WRITE, REG_LUMA_CONTROL3, 0x02},
138 {TOK_WRITE, REG_BRIGHTNESS, 0x80},
139 {TOK_WRITE, REG_CONTRAST, 0x80},
140 {TOK_WRITE, REG_SATURATION, 0x80},
141 {TOK_WRITE, REG_HUE, 0x00},
142 {TOK_WRITE, REG_CHROMA_CONTROL1, 0x00},
143 {TOK_WRITE, REG_CHROMA_CONTROL2, 0x0E},
144 /* Reserved */
145 {TOK_SKIP, 0x0F, 0x00},
146 {TOK_WRITE, REG_COMP_PR_SATURATION, 0x80},
147 {TOK_WRITE, REG_COMP_Y_CONTRAST, 0x80},
148 {TOK_WRITE, REG_COMP_PB_SATURATION, 0x80},
149 /* Reserved */
150 {TOK_SKIP, 0x13, 0x00},
151 {TOK_WRITE, REG_COMP_Y_BRIGHTNESS, 0x80},
152 /* Reserved */
153 {TOK_SKIP, 0x15, 0x00},
154 /* NTSC timing */
155 {TOK_SKIP, REG_AVID_START_PIXEL_LSB, 0x55},
156 {TOK_SKIP, REG_AVID_START_PIXEL_MSB, 0x00},
157 {TOK_SKIP, REG_AVID_STOP_PIXEL_LSB, 0x25},
158 {TOK_SKIP, REG_AVID_STOP_PIXEL_MSB, 0x03},
159 /* NTSC timing */
160 {TOK_SKIP, REG_HSYNC_START_PIXEL_LSB, 0x00},
161 {TOK_SKIP, REG_HSYNC_START_PIXEL_MSB, 0x00},
162 {TOK_SKIP, REG_HSYNC_STOP_PIXEL_LSB, 0x40},
163 {TOK_SKIP, REG_HSYNC_STOP_PIXEL_MSB, 0x00},
164 /* NTSC timing */
165 {TOK_SKIP, REG_VSYNC_START_LINE_LSB, 0x04},
166 {TOK_SKIP, REG_VSYNC_START_LINE_MSB, 0x00},
167 {TOK_SKIP, REG_VSYNC_STOP_LINE_LSB, 0x07},
168 {TOK_SKIP, REG_VSYNC_STOP_LINE_MSB, 0x00},
169 /* NTSC timing */
170 {TOK_SKIP, REG_VBLK_START_LINE_LSB, 0x01},
171 {TOK_SKIP, REG_VBLK_START_LINE_MSB, 0x00},
172 {TOK_SKIP, REG_VBLK_STOP_LINE_LSB, 0x15},
173 {TOK_SKIP, REG_VBLK_STOP_LINE_MSB, 0x00},
174 /* Reserved */
175 {TOK_SKIP, 0x26, 0x00},
176 /* Reserved */
177 {TOK_SKIP, 0x27, 0x00},
178 {TOK_SKIP, REG_FAST_SWTICH_CONTROL, 0xCC},
179 /* Reserved */
180 {TOK_SKIP, 0x29, 0x00},
181 {TOK_SKIP, REG_FAST_SWTICH_SCART_DELAY, 0x00},
182 /* Reserved */
183 {TOK_SKIP, 0x2B, 0x00},
184 {TOK_SKIP, REG_SCART_DELAY, 0x00},
185 {TOK_SKIP, REG_CTI_DELAY, 0x00},
186 {TOK_SKIP, REG_CTI_CONTROL, 0x00},
187 /* Reserved */
188 {TOK_SKIP, 0x2F, 0x00},
189 /* Reserved */
190 {TOK_SKIP, 0x30, 0x00},
191 /* Reserved */
192 {TOK_SKIP, 0x31, 0x00},
193 /* HS, VS active high */
194 {TOK_WRITE, REG_SYNC_CONTROL, 0x00},
195 /* 10-bit BT.656 */
196 {TOK_WRITE, REG_OUTPUT_FORMATTER1, 0x00},
197 /* Enable clk & data */
198 {TOK_WRITE, REG_OUTPUT_FORMATTER2, 0x11},
199 /* Enable AVID & FLD */
200 {TOK_WRITE, REG_OUTPUT_FORMATTER3, 0xEE},
201 /* Enable VS & HS */
202 {TOK_WRITE, REG_OUTPUT_FORMATTER4, 0xAF},
203 {TOK_WRITE, REG_OUTPUT_FORMATTER5, 0xFF},
204 {TOK_WRITE, REG_OUTPUT_FORMATTER6, 0xFF},
205 /* Clear status */
206 {TOK_WRITE, REG_CLEAR_LOST_LOCK, 0x01},
207 {TOK_TERM, 0, 0},
208};
209
210/*
211 * List of image formats supported by TVP5146/47 decoder
212 * Currently we are using 8 bit mode only, but can be
213 * extended to 10/20 bit mode.
214 */
215static const struct v4l2_fmtdesc tvp514x_fmt_list[] = {
216 {
217 .index = 0,
218 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
219 .flags = 0,
220 .description = "8-bit UYVY 4:2:2 Format",
221 .pixelformat = V4L2_PIX_FMT_UYVY,
222 },
223};
224
225/*
226 * Supported standards -
227 *
228 * Currently supports two standards only, need to add support for rest of the
229 * modes, like SECAM, etc...
230 */
231static const struct tvp514x_std_info tvp514x_std_list[] = {
232 /* Standard: STD_NTSC_MJ */
233 [STD_NTSC_MJ] = {
234 .width = NTSC_NUM_ACTIVE_PIXELS,
235 .height = NTSC_NUM_ACTIVE_LINES,
236 .video_std = VIDEO_STD_NTSC_MJ_BIT,
237 .standard = {
238 .index = 0,
239 .id = V4L2_STD_NTSC,
240 .name = "NTSC",
241 .frameperiod = {1001, 30000},
242 .framelines = 525
243 },
244 /* Standard: STD_PAL_BDGHIN */
245 },
246 [STD_PAL_BDGHIN] = {
247 .width = PAL_NUM_ACTIVE_PIXELS,
248 .height = PAL_NUM_ACTIVE_LINES,
249 .video_std = VIDEO_STD_PAL_BDGHIN_BIT,
250 .standard = {
251 .index = 1,
252 .id = V4L2_STD_PAL,
253 .name = "PAL",
254 .frameperiod = {1, 25},
255 .framelines = 625
256 },
257 },
258 /* Standard: need to add for additional standard */
259};
260
261
262static inline struct tvp514x_decoder *to_decoder(struct v4l2_subdev *sd)
263{
264 return container_of(sd, struct tvp514x_decoder, sd);
265}
266
267static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
268{
269 return &container_of(ctrl->handler, struct tvp514x_decoder, hdl)->sd;
270}
271
272
273/**
274 * tvp514x_read_reg() - Read a value from a register in an TVP5146/47.
275 * @sd: ptr to v4l2_subdev struct
276 * @reg: TVP5146/47 register address
277 *
278 * Returns value read if successful, or non-zero (-1) otherwise.
279 */
280static int tvp514x_read_reg(struct v4l2_subdev *sd, u8 reg)
281{
282 int err, retry = 0;
283 struct i2c_client *client = v4l2_get_subdevdata(sd);
284
285read_again:
286
287 err = i2c_smbus_read_byte_data(client, command: reg);
288 if (err < 0) {
289 if (retry <= I2C_RETRY_COUNT) {
290 v4l2_warn(sd, "Read: retry ... %d\n", retry);
291 retry++;
292 msleep_interruptible(msecs: 10);
293 goto read_again;
294 }
295 }
296
297 return err;
298}
299
300/**
301 * dump_reg() - dump the register content of TVP5146/47.
302 * @sd: ptr to v4l2_subdev struct
303 * @reg: TVP5146/47 register address
304 */
305static void dump_reg(struct v4l2_subdev *sd, u8 reg)
306{
307 u32 val;
308
309 val = tvp514x_read_reg(sd, reg);
310 v4l2_info(sd, "Reg(0x%.2X): 0x%.2X\n", reg, val);
311}
312
313/**
314 * tvp514x_write_reg() - Write a value to a register in TVP5146/47
315 * @sd: ptr to v4l2_subdev struct
316 * @reg: TVP5146/47 register address
317 * @val: value to be written to the register
318 *
319 * Write a value to a register in an TVP5146/47 decoder device.
320 * Returns zero if successful, or non-zero otherwise.
321 */
322static int tvp514x_write_reg(struct v4l2_subdev *sd, u8 reg, u8 val)
323{
324 int err, retry = 0;
325 struct i2c_client *client = v4l2_get_subdevdata(sd);
326
327write_again:
328
329 err = i2c_smbus_write_byte_data(client, command: reg, value: val);
330 if (err) {
331 if (retry <= I2C_RETRY_COUNT) {
332 v4l2_warn(sd, "Write: retry ... %d\n", retry);
333 retry++;
334 msleep_interruptible(msecs: 10);
335 goto write_again;
336 }
337 }
338
339 return err;
340}
341
342/**
343 * tvp514x_write_regs() : Initializes a list of TVP5146/47 registers
344 * @sd: ptr to v4l2_subdev struct
345 * @reglist: list of TVP5146/47 registers and values
346 *
347 * Initializes a list of TVP5146/47 registers:-
348 * if token is TOK_TERM, then entire write operation terminates
349 * if token is TOK_DELAY, then a delay of 'val' msec is introduced
350 * if token is TOK_SKIP, then the register write is skipped
351 * if token is TOK_WRITE, then the register write is performed
352 * Returns zero if successful, or non-zero otherwise.
353 */
354static int tvp514x_write_regs(struct v4l2_subdev *sd,
355 const struct tvp514x_reg reglist[])
356{
357 int err;
358 const struct tvp514x_reg *next = reglist;
359
360 for (; next->token != TOK_TERM; next++) {
361 if (next->token == TOK_DELAY) {
362 msleep(msecs: next->val);
363 continue;
364 }
365
366 if (next->token == TOK_SKIP)
367 continue;
368
369 err = tvp514x_write_reg(sd, reg: next->reg, val: (u8) next->val);
370 if (err) {
371 v4l2_err(sd, "Write failed. Err[%d]\n", err);
372 return err;
373 }
374 }
375 return 0;
376}
377
378/**
379 * tvp514x_query_current_std() : Query the current standard detected by TVP5146/47
380 * @sd: ptr to v4l2_subdev struct
381 *
382 * Returns the current standard detected by TVP5146/47, STD_INVALID if there is no
383 * standard detected.
384 */
385static enum tvp514x_std tvp514x_query_current_std(struct v4l2_subdev *sd)
386{
387 u8 std, std_status;
388
389 std = tvp514x_read_reg(sd, REG_VIDEO_STD);
390 if ((std & VIDEO_STD_MASK) == VIDEO_STD_AUTO_SWITCH_BIT)
391 /* use the standard status register */
392 std_status = tvp514x_read_reg(sd, REG_VIDEO_STD_STATUS);
393 else
394 /* use the standard register itself */
395 std_status = std;
396
397 switch (std_status & VIDEO_STD_MASK) {
398 case VIDEO_STD_NTSC_MJ_BIT:
399 return STD_NTSC_MJ;
400
401 case VIDEO_STD_PAL_BDGHIN_BIT:
402 return STD_PAL_BDGHIN;
403
404 default:
405 return STD_INVALID;
406 }
407
408 return STD_INVALID;
409}
410
411/* TVP5146/47 register dump function */
412static void tvp514x_reg_dump(struct v4l2_subdev *sd)
413{
414 dump_reg(sd, REG_INPUT_SEL);
415 dump_reg(sd, REG_AFE_GAIN_CTRL);
416 dump_reg(sd, REG_VIDEO_STD);
417 dump_reg(sd, REG_OPERATION_MODE);
418 dump_reg(sd, REG_COLOR_KILLER);
419 dump_reg(sd, REG_LUMA_CONTROL1);
420 dump_reg(sd, REG_LUMA_CONTROL2);
421 dump_reg(sd, REG_LUMA_CONTROL3);
422 dump_reg(sd, REG_BRIGHTNESS);
423 dump_reg(sd, REG_CONTRAST);
424 dump_reg(sd, REG_SATURATION);
425 dump_reg(sd, REG_HUE);
426 dump_reg(sd, REG_CHROMA_CONTROL1);
427 dump_reg(sd, REG_CHROMA_CONTROL2);
428 dump_reg(sd, REG_COMP_PR_SATURATION);
429 dump_reg(sd, REG_COMP_Y_CONTRAST);
430 dump_reg(sd, REG_COMP_PB_SATURATION);
431 dump_reg(sd, REG_COMP_Y_BRIGHTNESS);
432 dump_reg(sd, REG_AVID_START_PIXEL_LSB);
433 dump_reg(sd, REG_AVID_START_PIXEL_MSB);
434 dump_reg(sd, REG_AVID_STOP_PIXEL_LSB);
435 dump_reg(sd, REG_AVID_STOP_PIXEL_MSB);
436 dump_reg(sd, REG_HSYNC_START_PIXEL_LSB);
437 dump_reg(sd, REG_HSYNC_START_PIXEL_MSB);
438 dump_reg(sd, REG_HSYNC_STOP_PIXEL_LSB);
439 dump_reg(sd, REG_HSYNC_STOP_PIXEL_MSB);
440 dump_reg(sd, REG_VSYNC_START_LINE_LSB);
441 dump_reg(sd, REG_VSYNC_START_LINE_MSB);
442 dump_reg(sd, REG_VSYNC_STOP_LINE_LSB);
443 dump_reg(sd, REG_VSYNC_STOP_LINE_MSB);
444 dump_reg(sd, REG_VBLK_START_LINE_LSB);
445 dump_reg(sd, REG_VBLK_START_LINE_MSB);
446 dump_reg(sd, REG_VBLK_STOP_LINE_LSB);
447 dump_reg(sd, REG_VBLK_STOP_LINE_MSB);
448 dump_reg(sd, REG_SYNC_CONTROL);
449 dump_reg(sd, REG_OUTPUT_FORMATTER1);
450 dump_reg(sd, REG_OUTPUT_FORMATTER2);
451 dump_reg(sd, REG_OUTPUT_FORMATTER3);
452 dump_reg(sd, REG_OUTPUT_FORMATTER4);
453 dump_reg(sd, REG_OUTPUT_FORMATTER5);
454 dump_reg(sd, REG_OUTPUT_FORMATTER6);
455 dump_reg(sd, REG_CLEAR_LOST_LOCK);
456}
457
458/**
459 * tvp514x_configure() - Configure the TVP5146/47 registers
460 * @sd: ptr to v4l2_subdev struct
461 * @decoder: ptr to tvp514x_decoder structure
462 *
463 * Returns zero if successful, or non-zero otherwise.
464 */
465static int tvp514x_configure(struct v4l2_subdev *sd,
466 struct tvp514x_decoder *decoder)
467{
468 int err;
469
470 /* common register initialization */
471 err =
472 tvp514x_write_regs(sd, reglist: decoder->tvp514x_regs);
473 if (err)
474 return err;
475
476 if (debug)
477 tvp514x_reg_dump(sd);
478
479 return 0;
480}
481
482/**
483 * tvp514x_detect() - Detect if an tvp514x is present, and if so which revision.
484 * @sd: pointer to standard V4L2 sub-device structure
485 * @decoder: pointer to tvp514x_decoder structure
486 *
487 * A device is considered to be detected if the chip ID (LSB and MSB)
488 * registers match the expected values.
489 * Any value of the rom version register is accepted.
490 * Returns ENODEV error number if no device is detected, or zero
491 * if a device is detected.
492 */
493static int tvp514x_detect(struct v4l2_subdev *sd,
494 struct tvp514x_decoder *decoder)
495{
496 u8 chip_id_msb, chip_id_lsb, rom_ver;
497 struct i2c_client *client = v4l2_get_subdevdata(sd);
498
499 chip_id_msb = tvp514x_read_reg(sd, REG_CHIP_ID_MSB);
500 chip_id_lsb = tvp514x_read_reg(sd, REG_CHIP_ID_LSB);
501 rom_ver = tvp514x_read_reg(sd, REG_ROM_VERSION);
502
503 v4l2_dbg(1, debug, sd,
504 "chip id detected msb:0x%x lsb:0x%x rom version:0x%x\n",
505 chip_id_msb, chip_id_lsb, rom_ver);
506 if ((chip_id_msb != TVP514X_CHIP_ID_MSB)
507 || ((chip_id_lsb != TVP5146_CHIP_ID_LSB)
508 && (chip_id_lsb != TVP5147_CHIP_ID_LSB))) {
509 /* We didn't read the values we expected, so this must not be
510 * an TVP5146/47.
511 */
512 v4l2_err(sd, "chip id mismatch msb:0x%x lsb:0x%x\n",
513 chip_id_msb, chip_id_lsb);
514 return -ENODEV;
515 }
516
517 decoder->ver = rom_ver;
518
519 v4l2_info(sd, "%s (Version - 0x%.2x) found at 0x%x (%s)\n",
520 client->name, decoder->ver,
521 client->addr << 1, client->adapter->name);
522 return 0;
523}
524
525/**
526 * tvp514x_querystd() - V4L2 decoder interface handler for querystd
527 * @sd: pointer to standard V4L2 sub-device structure
528 * @std_id: standard V4L2 std_id ioctl enum
529 *
530 * Returns the current standard detected by TVP5146/47. If no active input is
531 * detected then *std_id is set to 0 and the function returns 0.
532 */
533static int tvp514x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
534{
535 struct tvp514x_decoder *decoder = to_decoder(sd);
536 enum tvp514x_std current_std;
537 enum tvp514x_input input_sel;
538 u8 sync_lock_status, lock_mask;
539
540 if (std_id == NULL)
541 return -EINVAL;
542
543 /* To query the standard the TVP514x must power on the ADCs. */
544 if (!decoder->streaming) {
545 tvp514x_s_stream(sd, enable: 1);
546 msleep(LOCK_RETRY_DELAY);
547 }
548
549 /* query the current standard */
550 current_std = tvp514x_query_current_std(sd);
551 if (current_std == STD_INVALID) {
552 *std_id = V4L2_STD_UNKNOWN;
553 return 0;
554 }
555
556 input_sel = decoder->input;
557
558 switch (input_sel) {
559 case INPUT_CVBS_VI1A:
560 case INPUT_CVBS_VI1B:
561 case INPUT_CVBS_VI1C:
562 case INPUT_CVBS_VI2A:
563 case INPUT_CVBS_VI2B:
564 case INPUT_CVBS_VI2C:
565 case INPUT_CVBS_VI3A:
566 case INPUT_CVBS_VI3B:
567 case INPUT_CVBS_VI3C:
568 case INPUT_CVBS_VI4A:
569 lock_mask = STATUS_CLR_SUBCAR_LOCK_BIT |
570 STATUS_HORZ_SYNC_LOCK_BIT |
571 STATUS_VIRT_SYNC_LOCK_BIT;
572 break;
573
574 case INPUT_SVIDEO_VI2A_VI1A:
575 case INPUT_SVIDEO_VI2B_VI1B:
576 case INPUT_SVIDEO_VI2C_VI1C:
577 case INPUT_SVIDEO_VI2A_VI3A:
578 case INPUT_SVIDEO_VI2B_VI3B:
579 case INPUT_SVIDEO_VI2C_VI3C:
580 case INPUT_SVIDEO_VI4A_VI1A:
581 case INPUT_SVIDEO_VI4A_VI1B:
582 case INPUT_SVIDEO_VI4A_VI1C:
583 case INPUT_SVIDEO_VI4A_VI3A:
584 case INPUT_SVIDEO_VI4A_VI3B:
585 case INPUT_SVIDEO_VI4A_VI3C:
586 lock_mask = STATUS_HORZ_SYNC_LOCK_BIT |
587 STATUS_VIRT_SYNC_LOCK_BIT;
588 break;
589 /*Need to add other interfaces*/
590 default:
591 return -EINVAL;
592 }
593 /* check whether signal is locked */
594 sync_lock_status = tvp514x_read_reg(sd, REG_STATUS1);
595 if (lock_mask != (sync_lock_status & lock_mask)) {
596 *std_id = V4L2_STD_UNKNOWN;
597 return 0; /* No input detected */
598 }
599
600 *std_id &= decoder->std_list[current_std].standard.id;
601
602 v4l2_dbg(1, debug, sd, "Current STD: %s\n",
603 decoder->std_list[current_std].standard.name);
604 return 0;
605}
606
607/**
608 * tvp514x_s_std() - V4L2 decoder interface handler for s_std
609 * @sd: pointer to standard V4L2 sub-device structure
610 * @std_id: standard V4L2 v4l2_std_id ioctl enum
611 *
612 * If std_id is supported, sets the requested standard. Otherwise, returns
613 * -EINVAL
614 */
615static int tvp514x_s_std(struct v4l2_subdev *sd, v4l2_std_id std_id)
616{
617 struct tvp514x_decoder *decoder = to_decoder(sd);
618 int err, i;
619
620 for (i = 0; i < decoder->num_stds; i++)
621 if (std_id & decoder->std_list[i].standard.id)
622 break;
623
624 if ((i == decoder->num_stds) || (i == STD_INVALID))
625 return -EINVAL;
626
627 err = tvp514x_write_reg(sd, REG_VIDEO_STD,
628 val: decoder->std_list[i].video_std);
629 if (err)
630 return err;
631
632 decoder->current_std = i;
633 decoder->tvp514x_regs[REG_VIDEO_STD].val =
634 decoder->std_list[i].video_std;
635
636 v4l2_dbg(1, debug, sd, "Standard set to: %s\n",
637 decoder->std_list[i].standard.name);
638 return 0;
639}
640
641/**
642 * tvp514x_s_routing() - V4L2 decoder interface handler for s_routing
643 * @sd: pointer to standard V4L2 sub-device structure
644 * @input: input selector for routing the signal
645 * @output: output selector for routing the signal
646 * @config: config value. Not used
647 *
648 * If index is valid, selects the requested input. Otherwise, returns -EINVAL if
649 * the input is not supported or there is no active signal present in the
650 * selected input.
651 */
652static int tvp514x_s_routing(struct v4l2_subdev *sd,
653 u32 input, u32 output, u32 config)
654{
655 struct tvp514x_decoder *decoder = to_decoder(sd);
656 int err;
657 enum tvp514x_input input_sel;
658 enum tvp514x_output output_sel;
659
660 if ((input >= INPUT_INVALID) ||
661 (output >= OUTPUT_INVALID))
662 /* Index out of bound */
663 return -EINVAL;
664
665 input_sel = input;
666 output_sel = output;
667
668 err = tvp514x_write_reg(sd, REG_INPUT_SEL, val: input_sel);
669 if (err)
670 return err;
671
672 output_sel |= tvp514x_read_reg(sd,
673 REG_OUTPUT_FORMATTER1) & 0x7;
674 err = tvp514x_write_reg(sd, REG_OUTPUT_FORMATTER1,
675 val: output_sel);
676 if (err)
677 return err;
678
679 decoder->tvp514x_regs[REG_INPUT_SEL].val = input_sel;
680 decoder->tvp514x_regs[REG_OUTPUT_FORMATTER1].val = output_sel;
681 decoder->input = input;
682 decoder->output = output;
683
684 v4l2_dbg(1, debug, sd, "Input set to: %d\n", input_sel);
685
686 return 0;
687}
688
689/**
690 * tvp514x_s_ctrl() - V4L2 decoder interface handler for s_ctrl
691 * @ctrl: pointer to v4l2_ctrl structure
692 *
693 * If the requested control is supported, sets the control's current
694 * value in HW. Otherwise, returns -EINVAL if the control is not supported.
695 */
696static int tvp514x_s_ctrl(struct v4l2_ctrl *ctrl)
697{
698 struct v4l2_subdev *sd = to_sd(ctrl);
699 struct tvp514x_decoder *decoder = to_decoder(sd);
700 int err = -EINVAL, value;
701
702 value = ctrl->val;
703
704 switch (ctrl->id) {
705 case V4L2_CID_BRIGHTNESS:
706 err = tvp514x_write_reg(sd, REG_BRIGHTNESS, val: value);
707 if (!err)
708 decoder->tvp514x_regs[REG_BRIGHTNESS].val = value;
709 break;
710 case V4L2_CID_CONTRAST:
711 err = tvp514x_write_reg(sd, REG_CONTRAST, val: value);
712 if (!err)
713 decoder->tvp514x_regs[REG_CONTRAST].val = value;
714 break;
715 case V4L2_CID_SATURATION:
716 err = tvp514x_write_reg(sd, REG_SATURATION, val: value);
717 if (!err)
718 decoder->tvp514x_regs[REG_SATURATION].val = value;
719 break;
720 case V4L2_CID_HUE:
721 if (value == 180)
722 value = 0x7F;
723 else if (value == -180)
724 value = 0x80;
725 err = tvp514x_write_reg(sd, REG_HUE, val: value);
726 if (!err)
727 decoder->tvp514x_regs[REG_HUE].val = value;
728 break;
729 case V4L2_CID_AUTOGAIN:
730 err = tvp514x_write_reg(sd, REG_AFE_GAIN_CTRL, val: value ? 0x0f : 0x0c);
731 if (!err)
732 decoder->tvp514x_regs[REG_AFE_GAIN_CTRL].val = value;
733 break;
734 }
735
736 v4l2_dbg(1, debug, sd, "Set Control: ID - %d - %d\n",
737 ctrl->id, ctrl->val);
738 return err;
739}
740
741static int
742tvp514x_get_frame_interval(struct v4l2_subdev *sd,
743 struct v4l2_subdev_state *sd_state,
744 struct v4l2_subdev_frame_interval *ival)
745{
746 struct tvp514x_decoder *decoder = to_decoder(sd);
747 enum tvp514x_std current_std;
748
749 /*
750 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
751 * subdev active state API.
752 */
753 if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
754 return -EINVAL;
755
756 /* get the current standard */
757 current_std = decoder->current_std;
758
759 ival->interval =
760 decoder->std_list[current_std].standard.frameperiod;
761
762 return 0;
763}
764
765static int
766tvp514x_set_frame_interval(struct v4l2_subdev *sd,
767 struct v4l2_subdev_state *sd_state,
768 struct v4l2_subdev_frame_interval *ival)
769{
770 struct tvp514x_decoder *decoder = to_decoder(sd);
771 struct v4l2_fract *timeperframe;
772 enum tvp514x_std current_std;
773
774 /*
775 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2
776 * subdev active state API.
777 */
778 if (ival->which != V4L2_SUBDEV_FORMAT_ACTIVE)
779 return -EINVAL;
780
781 timeperframe = &ival->interval;
782
783 /* get the current standard */
784 current_std = decoder->current_std;
785
786 *timeperframe =
787 decoder->std_list[current_std].standard.frameperiod;
788
789 return 0;
790}
791
792/**
793 * tvp514x_s_stream() - V4L2 decoder i/f handler for s_stream
794 * @sd: pointer to standard V4L2 sub-device structure
795 * @enable: streaming enable or disable
796 *
797 * Sets streaming to enable or disable, if possible.
798 */
799static int tvp514x_s_stream(struct v4l2_subdev *sd, int enable)
800{
801 int err = 0;
802 struct tvp514x_decoder *decoder = to_decoder(sd);
803
804 if (decoder->streaming == enable)
805 return 0;
806
807 switch (enable) {
808 case 0:
809 {
810 /* Power Down Sequence */
811 err = tvp514x_write_reg(sd, REG_OPERATION_MODE, val: 0x01);
812 if (err) {
813 v4l2_err(sd, "Unable to turn off decoder\n");
814 return err;
815 }
816 decoder->streaming = enable;
817 break;
818 }
819 case 1:
820 {
821 /* Power Up Sequence */
822 err = tvp514x_write_regs(sd, reglist: decoder->int_seq);
823 if (err) {
824 v4l2_err(sd, "Unable to turn on decoder\n");
825 return err;
826 }
827 /* Detect if not already detected */
828 err = tvp514x_detect(sd, decoder);
829 if (err) {
830 v4l2_err(sd, "Unable to detect decoder\n");
831 return err;
832 }
833 err = tvp514x_configure(sd, decoder);
834 if (err) {
835 v4l2_err(sd, "Unable to configure decoder\n");
836 return err;
837 }
838 decoder->streaming = enable;
839 break;
840 }
841 default:
842 err = -ENODEV;
843 break;
844 }
845
846 return err;
847}
848
849static const struct v4l2_ctrl_ops tvp514x_ctrl_ops = {
850 .s_ctrl = tvp514x_s_ctrl,
851};
852
853/**
854 * tvp514x_enum_mbus_code() - V4L2 decoder interface handler for enum_mbus_code
855 * @sd: pointer to standard V4L2 sub-device structure
856 * @sd_state: subdev state
857 * @code: pointer to v4l2_subdev_mbus_code_enum structure
858 *
859 * Enumertaes mbus codes supported
860 */
861static int tvp514x_enum_mbus_code(struct v4l2_subdev *sd,
862 struct v4l2_subdev_state *sd_state,
863 struct v4l2_subdev_mbus_code_enum *code)
864{
865 u32 pad = code->pad;
866 u32 index = code->index;
867
868 memset(code, 0, sizeof(*code));
869 code->index = index;
870 code->pad = pad;
871
872 if (index != 0)
873 return -EINVAL;
874
875 code->code = MEDIA_BUS_FMT_UYVY8_2X8;
876
877 return 0;
878}
879
880/**
881 * tvp514x_get_pad_format() - V4L2 decoder interface handler for get pad format
882 * @sd: pointer to standard V4L2 sub-device structure
883 * @sd_state: subdev state
884 * @format: pointer to v4l2_subdev_format structure
885 *
886 * Retrieves pad format which is active or tried based on requirement
887 */
888static int tvp514x_get_pad_format(struct v4l2_subdev *sd,
889 struct v4l2_subdev_state *sd_state,
890 struct v4l2_subdev_format *format)
891{
892 struct tvp514x_decoder *decoder = to_decoder(sd);
893 __u32 which = format->which;
894
895 if (format->pad)
896 return -EINVAL;
897
898 if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
899 format->format = decoder->format;
900 return 0;
901 }
902
903 format->format.code = MEDIA_BUS_FMT_UYVY8_2X8;
904 format->format.width = tvp514x_std_list[decoder->current_std].width;
905 format->format.height = tvp514x_std_list[decoder->current_std].height;
906 format->format.colorspace = V4L2_COLORSPACE_SMPTE170M;
907 format->format.field = V4L2_FIELD_INTERLACED;
908
909 return 0;
910}
911
912/**
913 * tvp514x_set_pad_format() - V4L2 decoder interface handler for set pad format
914 * @sd: pointer to standard V4L2 sub-device structure
915 * @sd_state: subdev state
916 * @fmt: pointer to v4l2_subdev_format structure
917 *
918 * Set pad format for the output pad
919 */
920static int tvp514x_set_pad_format(struct v4l2_subdev *sd,
921 struct v4l2_subdev_state *sd_state,
922 struct v4l2_subdev_format *fmt)
923{
924 struct tvp514x_decoder *decoder = to_decoder(sd);
925
926 if (fmt->format.field != V4L2_FIELD_INTERLACED ||
927 fmt->format.code != MEDIA_BUS_FMT_UYVY8_2X8 ||
928 fmt->format.colorspace != V4L2_COLORSPACE_SMPTE170M ||
929 fmt->format.width != tvp514x_std_list[decoder->current_std].width ||
930 fmt->format.height != tvp514x_std_list[decoder->current_std].height)
931 return -EINVAL;
932
933 decoder->format = fmt->format;
934
935 return 0;
936}
937
938static const struct v4l2_subdev_video_ops tvp514x_video_ops = {
939 .s_std = tvp514x_s_std,
940 .s_routing = tvp514x_s_routing,
941 .querystd = tvp514x_querystd,
942 .s_stream = tvp514x_s_stream,
943};
944
945static const struct v4l2_subdev_pad_ops tvp514x_pad_ops = {
946 .enum_mbus_code = tvp514x_enum_mbus_code,
947 .get_fmt = tvp514x_get_pad_format,
948 .set_fmt = tvp514x_set_pad_format,
949 .get_frame_interval = tvp514x_get_frame_interval,
950 .set_frame_interval = tvp514x_set_frame_interval,
951};
952
953static const struct v4l2_subdev_ops tvp514x_ops = {
954 .video = &tvp514x_video_ops,
955 .pad = &tvp514x_pad_ops,
956};
957
958static const struct tvp514x_decoder tvp514x_dev = {
959 .streaming = 0,
960 .fmt_list = tvp514x_fmt_list,
961 .num_fmts = ARRAY_SIZE(tvp514x_fmt_list),
962 .pix = {
963 /* Default to NTSC 8-bit YUV 422 */
964 .width = NTSC_NUM_ACTIVE_PIXELS,
965 .height = NTSC_NUM_ACTIVE_LINES,
966 .pixelformat = V4L2_PIX_FMT_UYVY,
967 .field = V4L2_FIELD_INTERLACED,
968 .bytesperline = NTSC_NUM_ACTIVE_PIXELS * 2,
969 .sizeimage = NTSC_NUM_ACTIVE_PIXELS * 2 *
970 NTSC_NUM_ACTIVE_LINES,
971 .colorspace = V4L2_COLORSPACE_SMPTE170M,
972 },
973 .current_std = STD_NTSC_MJ,
974 .std_list = tvp514x_std_list,
975 .num_stds = ARRAY_SIZE(tvp514x_std_list),
976
977};
978
979static struct tvp514x_platform_data *
980tvp514x_get_pdata(struct i2c_client *client)
981{
982 struct tvp514x_platform_data *pdata = NULL;
983 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
984 struct device_node *endpoint;
985 unsigned int flags;
986
987 if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node)
988 return client->dev.platform_data;
989
990 endpoint = of_graph_get_endpoint_by_regs(parent: client->dev.of_node, port_reg: 0, reg: -1);
991 if (!endpoint)
992 return NULL;
993
994 if (v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), vep: &bus_cfg))
995 goto done;
996
997 pdata = devm_kzalloc(dev: &client->dev, size: sizeof(*pdata), GFP_KERNEL);
998 if (!pdata)
999 goto done;
1000
1001 flags = bus_cfg.bus.parallel.flags;
1002
1003 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
1004 pdata->hs_polarity = 1;
1005
1006 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
1007 pdata->vs_polarity = 1;
1008
1009 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
1010 pdata->clk_polarity = 1;
1011
1012done:
1013 of_node_put(node: endpoint);
1014 return pdata;
1015}
1016
1017/**
1018 * tvp514x_probe() - decoder driver i2c probe handler
1019 * @client: i2c driver client device structure
1020 *
1021 * Register decoder as an i2c client device and V4L2
1022 * device.
1023 */
1024static int
1025tvp514x_probe(struct i2c_client *client)
1026{
1027 struct tvp514x_platform_data *pdata = tvp514x_get_pdata(client);
1028 struct tvp514x_decoder *decoder;
1029 struct v4l2_subdev *sd;
1030 int ret;
1031
1032 if (pdata == NULL) {
1033 dev_err(&client->dev, "No platform data\n");
1034 return -EINVAL;
1035 }
1036
1037 /* Check if the adapter supports the needed features */
1038 if (!i2c_check_functionality(adap: client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1039 return -EIO;
1040
1041 decoder = devm_kzalloc(dev: &client->dev, size: sizeof(*decoder), GFP_KERNEL);
1042 if (!decoder)
1043 return -ENOMEM;
1044
1045 /* Initialize the tvp514x_decoder with default configuration */
1046 *decoder = tvp514x_dev;
1047 /* Copy default register configuration */
1048 memcpy(decoder->tvp514x_regs, tvp514x_reg_list_default,
1049 sizeof(tvp514x_reg_list_default));
1050
1051 decoder->int_seq = i2c_get_match_data(client);
1052
1053 /* Copy board specific information here */
1054 decoder->pdata = pdata;
1055
1056 /**
1057 * Fetch platform specific data, and configure the
1058 * tvp514x_reg_list[] accordingly. Since this is one
1059 * time configuration, no need to preserve.
1060 */
1061 decoder->tvp514x_regs[REG_OUTPUT_FORMATTER2].val |=
1062 (decoder->pdata->clk_polarity << 1);
1063 decoder->tvp514x_regs[REG_SYNC_CONTROL].val |=
1064 ((decoder->pdata->hs_polarity << 2) |
1065 (decoder->pdata->vs_polarity << 3));
1066 /* Set default standard to auto */
1067 decoder->tvp514x_regs[REG_VIDEO_STD].val =
1068 VIDEO_STD_AUTO_SWITCH_BIT;
1069
1070 /* Register with V4L2 layer as slave device */
1071 sd = &decoder->sd;
1072 v4l2_i2c_subdev_init(sd, client, ops: &tvp514x_ops);
1073
1074#if defined(CONFIG_MEDIA_CONTROLLER)
1075 decoder->pad.flags = MEDIA_PAD_FL_SOURCE;
1076 decoder->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1077 decoder->sd.entity.function = MEDIA_ENT_F_ATV_DECODER;
1078
1079 ret = media_entity_pads_init(entity: &decoder->sd.entity, num_pads: 1, pads: &decoder->pad);
1080 if (ret < 0) {
1081 v4l2_err(sd, "%s decoder driver failed to register !!\n",
1082 sd->name);
1083 return ret;
1084 }
1085#endif
1086 v4l2_ctrl_handler_init(&decoder->hdl, 5);
1087 v4l2_ctrl_new_std(hdl: &decoder->hdl, ops: &tvp514x_ctrl_ops,
1088 V4L2_CID_BRIGHTNESS, min: 0, max: 255, step: 1, def: 128);
1089 v4l2_ctrl_new_std(hdl: &decoder->hdl, ops: &tvp514x_ctrl_ops,
1090 V4L2_CID_CONTRAST, min: 0, max: 255, step: 1, def: 128);
1091 v4l2_ctrl_new_std(hdl: &decoder->hdl, ops: &tvp514x_ctrl_ops,
1092 V4L2_CID_SATURATION, min: 0, max: 255, step: 1, def: 128);
1093 v4l2_ctrl_new_std(hdl: &decoder->hdl, ops: &tvp514x_ctrl_ops,
1094 V4L2_CID_HUE, min: -180, max: 180, step: 180, def: 0);
1095 v4l2_ctrl_new_std(hdl: &decoder->hdl, ops: &tvp514x_ctrl_ops,
1096 V4L2_CID_AUTOGAIN, min: 0, max: 1, step: 1, def: 1);
1097 sd->ctrl_handler = &decoder->hdl;
1098 if (decoder->hdl.error) {
1099 ret = decoder->hdl.error;
1100 goto done;
1101 }
1102 v4l2_ctrl_handler_setup(hdl: &decoder->hdl);
1103
1104 ret = v4l2_async_register_subdev(sd: &decoder->sd);
1105 if (!ret)
1106 v4l2_info(sd, "%s decoder driver registered !!\n", sd->name);
1107
1108done:
1109 if (ret < 0) {
1110 v4l2_ctrl_handler_free(hdl: &decoder->hdl);
1111 media_entity_cleanup(entity: &decoder->sd.entity);
1112 }
1113 return ret;
1114}
1115
1116/**
1117 * tvp514x_remove() - decoder driver i2c remove handler
1118 * @client: i2c driver client device structure
1119 *
1120 * Unregister decoder as an i2c client device and V4L2
1121 * device. Complement of tvp514x_probe().
1122 */
1123static void tvp514x_remove(struct i2c_client *client)
1124{
1125 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1126 struct tvp514x_decoder *decoder = to_decoder(sd);
1127
1128 v4l2_async_unregister_subdev(sd: &decoder->sd);
1129 media_entity_cleanup(entity: &decoder->sd.entity);
1130 v4l2_ctrl_handler_free(hdl: &decoder->hdl);
1131}
1132/* TVP5146 Init/Power on Sequence */
1133static const struct tvp514x_reg tvp5146_init_reg_seq[] = {
1134 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
1135 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1136 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
1137 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1138 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1139 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1140 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1141 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1142 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
1143 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1144 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1145 {TOK_TERM, 0, 0},
1146};
1147
1148/* TVP5147 Init/Power on Sequence */
1149static const struct tvp514x_reg tvp5147_init_reg_seq[] = {
1150 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x02},
1151 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1152 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0x80},
1153 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1154 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1155 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1156 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1157 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x01},
1158 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x16},
1159 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1160 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xA0},
1161 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x16},
1162 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS1, 0x60},
1163 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS2, 0x00},
1164 {TOK_WRITE, REG_VBUS_ADDRESS_ACCESS3, 0xB0},
1165 {TOK_WRITE, REG_VBUS_DATA_ACCESS_NO_VBUS_ADDR_INCR, 0x00},
1166 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1167 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1168 {TOK_TERM, 0, 0},
1169};
1170
1171/* TVP5146M2/TVP5147M1 Init/Power on Sequence */
1172static const struct tvp514x_reg tvp514xm_init_reg_seq[] = {
1173 {TOK_WRITE, REG_OPERATION_MODE, 0x01},
1174 {TOK_WRITE, REG_OPERATION_MODE, 0x00},
1175 {TOK_TERM, 0, 0},
1176};
1177
1178/*
1179 * I2C Device Table -
1180 *
1181 * name - Name of the actual device/chip.
1182 * driver_data - Driver data
1183 */
1184static const struct i2c_device_id tvp514x_id[] = {
1185 {"tvp5146", (kernel_ulong_t)tvp5146_init_reg_seq },
1186 {"tvp5146m2", (kernel_ulong_t)tvp514xm_init_reg_seq },
1187 {"tvp5147", (kernel_ulong_t)tvp5147_init_reg_seq },
1188 {"tvp5147m1", (kernel_ulong_t)tvp514xm_init_reg_seq },
1189 { /* sentinel */ }
1190};
1191MODULE_DEVICE_TABLE(i2c, tvp514x_id);
1192
1193static const struct of_device_id tvp514x_of_match[] = {
1194 { .compatible = "ti,tvp5146", .data = tvp5146_init_reg_seq },
1195 { .compatible = "ti,tvp5146m2", .data = tvp514xm_init_reg_seq },
1196 { .compatible = "ti,tvp5147", .data = tvp5147_init_reg_seq },
1197 { .compatible = "ti,tvp5147m1", .data = tvp514xm_init_reg_seq },
1198 { /* sentinel */ }
1199};
1200MODULE_DEVICE_TABLE(of, tvp514x_of_match);
1201
1202static struct i2c_driver tvp514x_driver = {
1203 .driver = {
1204 .of_match_table = tvp514x_of_match,
1205 .name = TVP514X_MODULE_NAME,
1206 },
1207 .probe = tvp514x_probe,
1208 .remove = tvp514x_remove,
1209 .id_table = tvp514x_id,
1210};
1211
1212module_i2c_driver(tvp514x_driver);
1213

source code of linux/drivers/media/i2c/tvp514x.c