xref: /openbmc/linux/drivers/media/i2c/tvp5150.c (revision e3d786a3)
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // tvp5150 - Texas Instruments TVP5150A/AM1 and TVP5151 video decoder driver
4 //
5 // Copyright (c) 2005,2006 Mauro Carvalho Chehab <mchehab@kernel.org>
6 
7 #include <dt-bindings/media/tvp5150.h>
8 #include <linux/i2c.h>
9 #include <linux/slab.h>
10 #include <linux/videodev2.h>
11 #include <linux/delay.h>
12 #include <linux/gpio/consumer.h>
13 #include <linux/interrupt.h>
14 #include <linux/module.h>
15 #include <linux/of_graph.h>
16 #include <linux/regmap.h>
17 #include <media/v4l2-async.h>
18 #include <media/v4l2-device.h>
19 #include <media/v4l2-ctrls.h>
20 #include <media/v4l2-fwnode.h>
21 #include <media/v4l2-mc.h>
22 
23 #include "tvp5150_reg.h"
24 
25 #define TVP5150_H_MAX		720U
26 #define TVP5150_V_MAX_525_60	480U
27 #define TVP5150_V_MAX_OTHERS	576U
28 #define TVP5150_MAX_CROP_LEFT	511
29 #define TVP5150_MAX_CROP_TOP	127
30 #define TVP5150_CROP_SHIFT	2
31 #define TVP5150_MBUS_FMT	MEDIA_BUS_FMT_UYVY8_2X8
32 #define TVP5150_FIELD		V4L2_FIELD_ALTERNATE
33 #define TVP5150_COLORSPACE	V4L2_COLORSPACE_SMPTE170M
34 
35 MODULE_DESCRIPTION("Texas Instruments TVP5150A/TVP5150AM1/TVP5151 video decoder driver");
36 MODULE_AUTHOR("Mauro Carvalho Chehab");
37 MODULE_LICENSE("GPL v2");
38 
39 
40 static int debug;
41 module_param(debug, int, 0644);
42 MODULE_PARM_DESC(debug, "Debug level (0-2)");
43 
44 #define dprintk0(__dev, __arg...) dev_dbg_lvl(__dev, 0, 0, __arg)
45 
46 enum tvp5150_pads {
47 	TVP5150_PAD_IF_INPUT,
48 	TVP5150_PAD_VID_OUT,
49 	TVP5150_NUM_PADS
50 };
51 
52 struct tvp5150 {
53 	struct v4l2_subdev sd;
54 #ifdef CONFIG_MEDIA_CONTROLLER
55 	struct media_pad pads[TVP5150_NUM_PADS];
56 	struct media_entity input_ent[TVP5150_INPUT_NUM];
57 	struct media_pad input_pad[TVP5150_INPUT_NUM];
58 #endif
59 	struct v4l2_ctrl_handler hdl;
60 	struct v4l2_rect rect;
61 	struct regmap *regmap;
62 	int irq;
63 
64 	v4l2_std_id norm;	/* Current set standard */
65 	v4l2_std_id detected_norm;
66 	u32 input;
67 	u32 output;
68 	u32 oe;
69 	int enable;
70 	bool lock;
71 
72 	u16 dev_id;
73 	u16 rom_ver;
74 
75 	enum v4l2_mbus_type mbus_type;
76 };
77 
78 static inline struct tvp5150 *to_tvp5150(struct v4l2_subdev *sd)
79 {
80 	return container_of(sd, struct tvp5150, sd);
81 }
82 
83 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
84 {
85 	return &container_of(ctrl->handler, struct tvp5150, hdl)->sd;
86 }
87 
88 static int tvp5150_read(struct v4l2_subdev *sd, unsigned char addr)
89 {
90 	struct tvp5150 *decoder = to_tvp5150(sd);
91 	int ret, val;
92 
93 	ret = regmap_read(decoder->regmap, addr, &val);
94 	if (ret < 0)
95 		return ret;
96 
97 	return val;
98 }
99 
100 static void dump_reg_range(struct v4l2_subdev *sd, char *s, u8 init,
101 				const u8 end, int max_line)
102 {
103 	u8 buf[16];
104 	int i = 0, j, len;
105 
106 	if (max_line > 16) {
107 		dprintk0(sd->dev, "too much data to dump\n");
108 		return;
109 	}
110 
111 	for (i = init; i < end; i += max_line) {
112 		len = (end - i > max_line) ? max_line : end - i;
113 
114 		for (j = 0; j < len; j++)
115 			buf[j] = tvp5150_read(sd, i + j);
116 
117 		dprintk0(sd->dev, "%s reg %02x = %*ph\n", s, i, len, buf);
118 	}
119 }
120 
121 static int tvp5150_log_status(struct v4l2_subdev *sd)
122 {
123 	dprintk0(sd->dev, "tvp5150: Video input source selection #1 = 0x%02x\n",
124 		tvp5150_read(sd, TVP5150_VD_IN_SRC_SEL_1));
125 	dprintk0(sd->dev, "tvp5150: Analog channel controls = 0x%02x\n",
126 		tvp5150_read(sd, TVP5150_ANAL_CHL_CTL));
127 	dprintk0(sd->dev, "tvp5150: Operation mode controls = 0x%02x\n",
128 		tvp5150_read(sd, TVP5150_OP_MODE_CTL));
129 	dprintk0(sd->dev, "tvp5150: Miscellaneous controls = 0x%02x\n",
130 		tvp5150_read(sd, TVP5150_MISC_CTL));
131 	dprintk0(sd->dev, "tvp5150: Autoswitch mask= 0x%02x\n",
132 		tvp5150_read(sd, TVP5150_AUTOSW_MSK));
133 	dprintk0(sd->dev, "tvp5150: Color killer threshold control = 0x%02x\n",
134 		tvp5150_read(sd, TVP5150_COLOR_KIL_THSH_CTL));
135 	dprintk0(sd->dev, "tvp5150: Luminance processing controls #1 #2 and #3 = %02x %02x %02x\n",
136 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_1),
137 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_2),
138 		tvp5150_read(sd, TVP5150_LUMA_PROC_CTL_3));
139 	dprintk0(sd->dev, "tvp5150: Brightness control = 0x%02x\n",
140 		tvp5150_read(sd, TVP5150_BRIGHT_CTL));
141 	dprintk0(sd->dev, "tvp5150: Color saturation control = 0x%02x\n",
142 		tvp5150_read(sd, TVP5150_SATURATION_CTL));
143 	dprintk0(sd->dev, "tvp5150: Hue control = 0x%02x\n",
144 		tvp5150_read(sd, TVP5150_HUE_CTL));
145 	dprintk0(sd->dev, "tvp5150: Contrast control = 0x%02x\n",
146 		tvp5150_read(sd, TVP5150_CONTRAST_CTL));
147 	dprintk0(sd->dev, "tvp5150: Outputs and data rates select = 0x%02x\n",
148 		tvp5150_read(sd, TVP5150_DATA_RATE_SEL));
149 	dprintk0(sd->dev, "tvp5150: Configuration shared pins = 0x%02x\n",
150 		tvp5150_read(sd, TVP5150_CONF_SHARED_PIN));
151 	dprintk0(sd->dev, "tvp5150: Active video cropping start = 0x%02x%02x\n",
152 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_MSB),
153 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_ST_LSB));
154 	dprintk0(sd->dev, "tvp5150: Active video cropping stop  = 0x%02x%02x\n",
155 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_MSB),
156 		tvp5150_read(sd, TVP5150_ACT_VD_CROP_STP_LSB));
157 	dprintk0(sd->dev, "tvp5150: Genlock/RTC = 0x%02x\n",
158 		tvp5150_read(sd, TVP5150_GENLOCK));
159 	dprintk0(sd->dev, "tvp5150: Horizontal sync start = 0x%02x\n",
160 		tvp5150_read(sd, TVP5150_HORIZ_SYNC_START));
161 	dprintk0(sd->dev, "tvp5150: Vertical blanking start = 0x%02x\n",
162 		tvp5150_read(sd, TVP5150_VERT_BLANKING_START));
163 	dprintk0(sd->dev, "tvp5150: Vertical blanking stop = 0x%02x\n",
164 		tvp5150_read(sd, TVP5150_VERT_BLANKING_STOP));
165 	dprintk0(sd->dev, "tvp5150: Chrominance processing control #1 and #2 = %02x %02x\n",
166 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_1),
167 		tvp5150_read(sd, TVP5150_CHROMA_PROC_CTL_2));
168 	dprintk0(sd->dev, "tvp5150: Interrupt reset register B = 0x%02x\n",
169 		tvp5150_read(sd, TVP5150_INT_RESET_REG_B));
170 	dprintk0(sd->dev, "tvp5150: Interrupt enable register B = 0x%02x\n",
171 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_B));
172 	dprintk0(sd->dev, "tvp5150: Interrupt configuration register B = 0x%02x\n",
173 		tvp5150_read(sd, TVP5150_INTT_CONFIG_REG_B));
174 	dprintk0(sd->dev, "tvp5150: Video standard = 0x%02x\n",
175 		tvp5150_read(sd, TVP5150_VIDEO_STD));
176 	dprintk0(sd->dev, "tvp5150: Chroma gain factor: Cb=0x%02x Cr=0x%02x\n",
177 		tvp5150_read(sd, TVP5150_CB_GAIN_FACT),
178 		tvp5150_read(sd, TVP5150_CR_GAIN_FACTOR));
179 	dprintk0(sd->dev, "tvp5150: Macrovision on counter = 0x%02x\n",
180 		tvp5150_read(sd, TVP5150_MACROVISION_ON_CTR));
181 	dprintk0(sd->dev, "tvp5150: Macrovision off counter = 0x%02x\n",
182 		tvp5150_read(sd, TVP5150_MACROVISION_OFF_CTR));
183 	dprintk0(sd->dev, "tvp5150: ITU-R BT.656.%d timing(TVP5150AM1 only)\n",
184 		(tvp5150_read(sd, TVP5150_REV_SELECT) & 1) ? 3 : 4);
185 	dprintk0(sd->dev, "tvp5150: Device ID = %02x%02x\n",
186 		tvp5150_read(sd, TVP5150_MSB_DEV_ID),
187 		tvp5150_read(sd, TVP5150_LSB_DEV_ID));
188 	dprintk0(sd->dev, "tvp5150: ROM version = (hex) %02x.%02x\n",
189 		tvp5150_read(sd, TVP5150_ROM_MAJOR_VER),
190 		tvp5150_read(sd, TVP5150_ROM_MINOR_VER));
191 	dprintk0(sd->dev, "tvp5150: Vertical line count = 0x%02x%02x\n",
192 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_MSB),
193 		tvp5150_read(sd, TVP5150_VERT_LN_COUNT_LSB));
194 	dprintk0(sd->dev, "tvp5150: Interrupt status register B = 0x%02x\n",
195 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_B));
196 	dprintk0(sd->dev, "tvp5150: Interrupt active register B = 0x%02x\n",
197 		tvp5150_read(sd, TVP5150_INT_ACTIVE_REG_B));
198 	dprintk0(sd->dev, "tvp5150: Status regs #1 to #5 = %02x %02x %02x %02x %02x\n",
199 		tvp5150_read(sd, TVP5150_STATUS_REG_1),
200 		tvp5150_read(sd, TVP5150_STATUS_REG_2),
201 		tvp5150_read(sd, TVP5150_STATUS_REG_3),
202 		tvp5150_read(sd, TVP5150_STATUS_REG_4),
203 		tvp5150_read(sd, TVP5150_STATUS_REG_5));
204 
205 	dump_reg_range(sd, "Teletext filter 1",   TVP5150_TELETEXT_FIL1_INI,
206 			TVP5150_TELETEXT_FIL1_END, 8);
207 	dump_reg_range(sd, "Teletext filter 2",   TVP5150_TELETEXT_FIL2_INI,
208 			TVP5150_TELETEXT_FIL2_END, 8);
209 
210 	dprintk0(sd->dev, "tvp5150: Teletext filter enable = 0x%02x\n",
211 		tvp5150_read(sd, TVP5150_TELETEXT_FIL_ENA));
212 	dprintk0(sd->dev, "tvp5150: Interrupt status register A = 0x%02x\n",
213 		tvp5150_read(sd, TVP5150_INT_STATUS_REG_A));
214 	dprintk0(sd->dev, "tvp5150: Interrupt enable register A = 0x%02x\n",
215 		tvp5150_read(sd, TVP5150_INT_ENABLE_REG_A));
216 	dprintk0(sd->dev, "tvp5150: Interrupt configuration = 0x%02x\n",
217 		tvp5150_read(sd, TVP5150_INT_CONF));
218 	dprintk0(sd->dev, "tvp5150: VDP status register = 0x%02x\n",
219 		tvp5150_read(sd, TVP5150_VDP_STATUS_REG));
220 	dprintk0(sd->dev, "tvp5150: FIFO word count = 0x%02x\n",
221 		tvp5150_read(sd, TVP5150_FIFO_WORD_COUNT));
222 	dprintk0(sd->dev, "tvp5150: FIFO interrupt threshold = 0x%02x\n",
223 		tvp5150_read(sd, TVP5150_FIFO_INT_THRESHOLD));
224 	dprintk0(sd->dev, "tvp5150: FIFO reset = 0x%02x\n",
225 		tvp5150_read(sd, TVP5150_FIFO_RESET));
226 	dprintk0(sd->dev, "tvp5150: Line number interrupt = 0x%02x\n",
227 		tvp5150_read(sd, TVP5150_LINE_NUMBER_INT));
228 	dprintk0(sd->dev, "tvp5150: Pixel alignment register = 0x%02x%02x\n",
229 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_HIGH),
230 		tvp5150_read(sd, TVP5150_PIX_ALIGN_REG_LOW));
231 	dprintk0(sd->dev, "tvp5150: FIFO output control = 0x%02x\n",
232 		tvp5150_read(sd, TVP5150_FIFO_OUT_CTRL));
233 	dprintk0(sd->dev, "tvp5150: Full field enable = 0x%02x\n",
234 		tvp5150_read(sd, TVP5150_FULL_FIELD_ENA));
235 	dprintk0(sd->dev, "tvp5150: Full field mode register = 0x%02x\n",
236 		tvp5150_read(sd, TVP5150_FULL_FIELD_MODE_REG));
237 
238 	dump_reg_range(sd, "CC   data",   TVP5150_CC_DATA_INI,
239 			TVP5150_CC_DATA_END, 8);
240 
241 	dump_reg_range(sd, "WSS  data",   TVP5150_WSS_DATA_INI,
242 			TVP5150_WSS_DATA_END, 8);
243 
244 	dump_reg_range(sd, "VPS  data",   TVP5150_VPS_DATA_INI,
245 			TVP5150_VPS_DATA_END, 8);
246 
247 	dump_reg_range(sd, "VITC data",   TVP5150_VITC_DATA_INI,
248 			TVP5150_VITC_DATA_END, 10);
249 
250 	dump_reg_range(sd, "Line mode",   TVP5150_LINE_MODE_INI,
251 			TVP5150_LINE_MODE_END, 8);
252 	return 0;
253 }
254 
255 /****************************************************************************
256 			Basic functions
257  ****************************************************************************/
258 
259 static void tvp5150_selmux(struct v4l2_subdev *sd)
260 {
261 	int opmode = 0;
262 	struct tvp5150 *decoder = to_tvp5150(sd);
263 	unsigned int mask, val;
264 	int input = 0;
265 
266 	/* Only tvp5150am1 and tvp5151 have signal generator support */
267 	if ((decoder->dev_id == 0x5150 && decoder->rom_ver == 0x0400) ||
268 	    (decoder->dev_id == 0x5151 && decoder->rom_ver == 0x0100)) {
269 		if (!decoder->enable)
270 			input = 8;
271 	}
272 
273 	switch (decoder->input) {
274 	case TVP5150_COMPOSITE1:
275 		input |= 2;
276 		/* fall through */
277 	case TVP5150_COMPOSITE0:
278 		break;
279 	case TVP5150_SVIDEO:
280 	default:
281 		input |= 1;
282 		break;
283 	}
284 
285 	dev_dbg_lvl(sd->dev, 1, debug, "Selecting video route: route input=%i, output=%i => tvp5150 input=%i, opmode=%i\n",
286 			decoder->input, decoder->output,
287 			input, opmode);
288 
289 	regmap_write(decoder->regmap, TVP5150_OP_MODE_CTL, opmode);
290 	regmap_write(decoder->regmap, TVP5150_VD_IN_SRC_SEL_1, input);
291 
292 	/*
293 	 * Setup the FID/GLCO/VLK/HVLK and INTREQ/GPCL/VBLK output signals. For
294 	 * S-Video we output the vertical lock (VLK) signal on FID/GLCO/VLK/HVLK
295 	 * and set INTREQ/GPCL/VBLK to logic 0. For composite we output the
296 	 * field indicator (FID) signal on FID/GLCO/VLK/HVLK and set
297 	 * INTREQ/GPCL/VBLK to logic 1.
298 	 */
299 	mask = TVP5150_MISC_CTL_GPCL | TVP5150_MISC_CTL_HVLK;
300 	if (decoder->input == TVP5150_SVIDEO)
301 		val = TVP5150_MISC_CTL_HVLK;
302 	else
303 		val = TVP5150_MISC_CTL_GPCL;
304 	regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
305 };
306 
307 struct i2c_reg_value {
308 	unsigned char reg;
309 	unsigned char value;
310 };
311 
312 /* Default values as sugested at TVP5150AM1 datasheet */
313 static const struct i2c_reg_value tvp5150_init_default[] = {
314 	{ /* 0x00 */
315 		TVP5150_VD_IN_SRC_SEL_1, 0x00
316 	},
317 	{ /* 0x01 */
318 		TVP5150_ANAL_CHL_CTL, 0x15
319 	},
320 	{ /* 0x02 */
321 		TVP5150_OP_MODE_CTL, 0x00
322 	},
323 	{ /* 0x03 */
324 		TVP5150_MISC_CTL, 0x01
325 	},
326 	{ /* 0x06 */
327 		TVP5150_COLOR_KIL_THSH_CTL, 0x10
328 	},
329 	{ /* 0x07 */
330 		TVP5150_LUMA_PROC_CTL_1, 0x60
331 	},
332 	{ /* 0x08 */
333 		TVP5150_LUMA_PROC_CTL_2, 0x00
334 	},
335 	{ /* 0x09 */
336 		TVP5150_BRIGHT_CTL, 0x80
337 	},
338 	{ /* 0x0a */
339 		TVP5150_SATURATION_CTL, 0x80
340 	},
341 	{ /* 0x0b */
342 		TVP5150_HUE_CTL, 0x00
343 	},
344 	{ /* 0x0c */
345 		TVP5150_CONTRAST_CTL, 0x80
346 	},
347 	{ /* 0x0d */
348 		TVP5150_DATA_RATE_SEL, 0x47
349 	},
350 	{ /* 0x0e */
351 		TVP5150_LUMA_PROC_CTL_3, 0x00
352 	},
353 	{ /* 0x0f */
354 		TVP5150_CONF_SHARED_PIN, 0x08
355 	},
356 	{ /* 0x11 */
357 		TVP5150_ACT_VD_CROP_ST_MSB, 0x00
358 	},
359 	{ /* 0x12 */
360 		TVP5150_ACT_VD_CROP_ST_LSB, 0x00
361 	},
362 	{ /* 0x13 */
363 		TVP5150_ACT_VD_CROP_STP_MSB, 0x00
364 	},
365 	{ /* 0x14 */
366 		TVP5150_ACT_VD_CROP_STP_LSB, 0x00
367 	},
368 	{ /* 0x15 */
369 		TVP5150_GENLOCK, 0x01
370 	},
371 	{ /* 0x16 */
372 		TVP5150_HORIZ_SYNC_START, 0x80
373 	},
374 	{ /* 0x18 */
375 		TVP5150_VERT_BLANKING_START, 0x00
376 	},
377 	{ /* 0x19 */
378 		TVP5150_VERT_BLANKING_STOP, 0x00
379 	},
380 	{ /* 0x1a */
381 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
382 	},
383 	{ /* 0x1b */
384 		TVP5150_CHROMA_PROC_CTL_2, 0x14
385 	},
386 	{ /* 0x1c */
387 		TVP5150_INT_RESET_REG_B, 0x00
388 	},
389 	{ /* 0x1d */
390 		TVP5150_INT_ENABLE_REG_B, 0x00
391 	},
392 	{ /* 0x1e */
393 		TVP5150_INTT_CONFIG_REG_B, 0x00
394 	},
395 	{ /* 0x28 */
396 		TVP5150_VIDEO_STD, 0x00
397 	},
398 	{ /* 0x2e */
399 		TVP5150_MACROVISION_ON_CTR, 0x0f
400 	},
401 	{ /* 0x2f */
402 		TVP5150_MACROVISION_OFF_CTR, 0x01
403 	},
404 	{ /* 0xbb */
405 		TVP5150_TELETEXT_FIL_ENA, 0x00
406 	},
407 	{ /* 0xc0 */
408 		TVP5150_INT_STATUS_REG_A, 0x00
409 	},
410 	{ /* 0xc1 */
411 		TVP5150_INT_ENABLE_REG_A, 0x00
412 	},
413 	{ /* 0xc2 */
414 		TVP5150_INT_CONF, 0x04
415 	},
416 	{ /* 0xc8 */
417 		TVP5150_FIFO_INT_THRESHOLD, 0x80
418 	},
419 	{ /* 0xc9 */
420 		TVP5150_FIFO_RESET, 0x00
421 	},
422 	{ /* 0xca */
423 		TVP5150_LINE_NUMBER_INT, 0x00
424 	},
425 	{ /* 0xcb */
426 		TVP5150_PIX_ALIGN_REG_LOW, 0x4e
427 	},
428 	{ /* 0xcc */
429 		TVP5150_PIX_ALIGN_REG_HIGH, 0x00
430 	},
431 	{ /* 0xcd */
432 		TVP5150_FIFO_OUT_CTRL, 0x01
433 	},
434 	{ /* 0xcf */
435 		TVP5150_FULL_FIELD_ENA, 0x00
436 	},
437 	{ /* 0xd0 */
438 		TVP5150_LINE_MODE_INI, 0x00
439 	},
440 	{ /* 0xfc */
441 		TVP5150_FULL_FIELD_MODE_REG, 0x7f
442 	},
443 	{ /* end of data */
444 		0xff, 0xff
445 	}
446 };
447 
448 /* Default values as sugested at TVP5150AM1 datasheet */
449 static const struct i2c_reg_value tvp5150_init_enable[] = {
450 	{	/* Automatic offset and AGC enabled */
451 		TVP5150_ANAL_CHL_CTL, 0x15
452 	}, {	/* Activate YCrCb output 0x9 or 0xd ? */
453 		TVP5150_MISC_CTL, TVP5150_MISC_CTL_GPCL |
454 				  TVP5150_MISC_CTL_INTREQ_OE |
455 				  TVP5150_MISC_CTL_YCBCR_OE |
456 				  TVP5150_MISC_CTL_SYNC_OE |
457 				  TVP5150_MISC_CTL_VBLANK |
458 				  TVP5150_MISC_CTL_CLOCK_OE,
459 	}, {	/* Activates video std autodetection for all standards */
460 		TVP5150_AUTOSW_MSK, 0x0
461 	}, {	/* Default format: 0x47. For 4:2:2: 0x40 */
462 		TVP5150_DATA_RATE_SEL, 0x47
463 	}, {
464 		TVP5150_CHROMA_PROC_CTL_1, 0x0c
465 	}, {
466 		TVP5150_CHROMA_PROC_CTL_2, 0x54
467 	}, {	/* Non documented, but initialized on WinTV USB2 */
468 		0x27, 0x20
469 	}, {
470 		0xff, 0xff
471 	}
472 };
473 
474 struct tvp5150_vbi_type {
475 	unsigned int vbi_type;
476 	unsigned int ini_line;
477 	unsigned int end_line;
478 	unsigned int by_field :1;
479 };
480 
481 struct i2c_vbi_ram_value {
482 	u16 reg;
483 	struct tvp5150_vbi_type type;
484 	unsigned char values[16];
485 };
486 
487 /* This struct have the values for each supported VBI Standard
488  * by
489  tvp5150_vbi_types should follow the same order as vbi_ram_default
490  * value 0 means rom position 0x10, value 1 means rom position 0x30
491  * and so on. There are 16 possible locations from 0 to 15.
492  */
493 
494 static struct i2c_vbi_ram_value vbi_ram_default[] = {
495 
496 	/*
497 	 * FIXME: Current api doesn't handle all VBI types, those not
498 	 * yet supported are placed under #if 0
499 	 */
500 #if 0
501 	[0] = {0x010, /* Teletext, SECAM, WST System A */
502 		{V4L2_SLICED_TELETEXT_SECAM, 6, 23, 1},
503 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x26,
504 		  0xe6, 0xb4, 0x0e, 0x00, 0x00, 0x00, 0x10, 0x00 }
505 	},
506 #endif
507 	[1] = {0x030, /* Teletext, PAL, WST System B */
508 		{V4L2_SLICED_TELETEXT_B, 6, 22, 1},
509 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x2b,
510 		  0xa6, 0x72, 0x10, 0x00, 0x00, 0x00, 0x10, 0x00 }
511 	},
512 #if 0
513 	[2] = {0x050, /* Teletext, PAL, WST System C */
514 		{V4L2_SLICED_TELETEXT_PAL_C, 6, 22, 1},
515 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
516 		  0xa6, 0x98, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
517 	},
518 	[3] = {0x070, /* Teletext, NTSC, WST System B */
519 		{V4L2_SLICED_TELETEXT_NTSC_B, 10, 21, 1},
520 		{ 0xaa, 0xaa, 0xff, 0xff, 0x27, 0x2e, 0x20, 0x23,
521 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
522 	},
523 	[4] = {0x090, /* Tetetext, NTSC NABTS System C */
524 		{V4L2_SLICED_TELETEXT_NTSC_C, 10, 21, 1},
525 		{ 0xaa, 0xaa, 0xff, 0xff, 0xe7, 0x2e, 0x20, 0x22,
526 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x15, 0x00 }
527 	},
528 	[5] = {0x0b0, /* Teletext, NTSC-J, NABTS System D */
529 		{V4L2_SLICED_TELETEXT_NTSC_D, 10, 21, 1},
530 		{ 0xaa, 0xaa, 0xff, 0xff, 0xa7, 0x2e, 0x20, 0x23,
531 		  0x69, 0x93, 0x0d, 0x00, 0x00, 0x00, 0x10, 0x00 }
532 	},
533 	[6] = {0x0d0, /* Closed Caption, PAL/SECAM */
534 		{V4L2_SLICED_CAPTION_625, 22, 22, 1},
535 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
536 		  0xa6, 0x7b, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
537 	},
538 #endif
539 	[7] = {0x0f0, /* Closed Caption, NTSC */
540 		{V4L2_SLICED_CAPTION_525, 21, 21, 1},
541 		{ 0xaa, 0x2a, 0xff, 0x3f, 0x04, 0x51, 0x6e, 0x02,
542 		  0x69, 0x8c, 0x09, 0x00, 0x00, 0x00, 0x27, 0x00 }
543 	},
544 	[8] = {0x110, /* Wide Screen Signal, PAL/SECAM */
545 		{V4L2_SLICED_WSS_625, 23, 23, 1},
546 		{ 0x5b, 0x55, 0xc5, 0xff, 0x00, 0x71, 0x6e, 0x42,
547 		  0xa6, 0xcd, 0x0f, 0x00, 0x00, 0x00, 0x3a, 0x00 }
548 	},
549 #if 0
550 	[9] = {0x130, /* Wide Screen Signal, NTSC C */
551 		{V4L2_SLICED_WSS_525, 20, 20, 1},
552 		{ 0x38, 0x00, 0x3f, 0x00, 0x00, 0x71, 0x6e, 0x43,
553 		  0x69, 0x7c, 0x08, 0x00, 0x00, 0x00, 0x39, 0x00 }
554 	},
555 	[10] = {0x150, /* Vertical Interval Timecode (VITC), PAL/SECAM */
556 		{V4l2_SLICED_VITC_625, 6, 22, 0},
557 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
558 		  0xa6, 0x85, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
559 	},
560 	[11] = {0x170, /* Vertical Interval Timecode (VITC), NTSC */
561 		{V4l2_SLICED_VITC_525, 10, 20, 0},
562 		{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0x6d, 0x49,
563 		  0x69, 0x94, 0x08, 0x00, 0x00, 0x00, 0x4c, 0x00 }
564 	},
565 #endif
566 	[12] = {0x190, /* Video Program System (VPS), PAL */
567 		{V4L2_SLICED_VPS, 16, 16, 0},
568 		{ 0xaa, 0xaa, 0xff, 0xff, 0xba, 0xce, 0x2b, 0x0d,
569 		  0xa6, 0xda, 0x0b, 0x00, 0x00, 0x00, 0x60, 0x00 }
570 	},
571 	/* 0x1d0 User programmable */
572 };
573 
574 static int tvp5150_write_inittab(struct v4l2_subdev *sd,
575 				const struct i2c_reg_value *regs)
576 {
577 	struct tvp5150 *decoder = to_tvp5150(sd);
578 
579 	while (regs->reg != 0xff) {
580 		regmap_write(decoder->regmap, regs->reg, regs->value);
581 		regs++;
582 	}
583 	return 0;
584 }
585 
586 static int tvp5150_vdp_init(struct v4l2_subdev *sd)
587 {
588 	struct tvp5150 *decoder = to_tvp5150(sd);
589 	struct regmap *map = decoder->regmap;
590 	unsigned int i;
591 	int j;
592 
593 	/* Disable Full Field */
594 	regmap_write(map, TVP5150_FULL_FIELD_ENA, 0);
595 
596 	/* Before programming, Line mode should be at 0xff */
597 	for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
598 		regmap_write(map, i, 0xff);
599 
600 	/* Load Ram Table */
601 	for (j = 0; j < ARRAY_SIZE(vbi_ram_default); j++) {
602 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[j];
603 
604 		if (!regs->type.vbi_type)
605 			continue;
606 
607 		regmap_write(map, TVP5150_CONF_RAM_ADDR_HIGH, regs->reg >> 8);
608 		regmap_write(map, TVP5150_CONF_RAM_ADDR_LOW, regs->reg);
609 
610 		for (i = 0; i < 16; i++)
611 			regmap_write(map, TVP5150_VDP_CONF_RAM_DATA,
612 				     regs->values[i]);
613 	}
614 	return 0;
615 }
616 
617 /* Fills VBI capabilities based on i2c_vbi_ram_value struct */
618 static int tvp5150_g_sliced_vbi_cap(struct v4l2_subdev *sd,
619 				struct v4l2_sliced_vbi_cap *cap)
620 {
621 	int line, i;
622 
623 	dev_dbg_lvl(sd->dev, 1, debug, "g_sliced_vbi_cap\n");
624 	memset(cap, 0, sizeof(*cap));
625 
626 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
627 		const struct i2c_vbi_ram_value *regs = &vbi_ram_default[i];
628 
629 		if (!regs->type.vbi_type)
630 			continue;
631 
632 		for (line = regs->type.ini_line;
633 		     line <= regs->type.end_line;
634 		     line++) {
635 			cap->service_lines[0][line] |= regs->type.vbi_type;
636 		}
637 		cap->service_set |= regs->type.vbi_type;
638 	}
639 	return 0;
640 }
641 
642 /* Set vbi processing
643  * type - one of tvp5150_vbi_types
644  * line - line to gather data
645  * fields: bit 0 field1, bit 1, field2
646  * flags (default=0xf0) is a bitmask, were set means:
647  *	bit 7: enable filtering null bytes on CC
648  *	bit 6: send data also to FIFO
649  *	bit 5: don't allow data with errors on FIFO
650  *	bit 4: enable ECC when possible
651  * pix_align = pix alignment:
652  *	LSB = field1
653  *	MSB = field2
654  */
655 static int tvp5150_set_vbi(struct v4l2_subdev *sd,
656 			unsigned int type, u8 flags, int line,
657 			const int fields)
658 {
659 	struct tvp5150 *decoder = to_tvp5150(sd);
660 	v4l2_std_id std = decoder->norm;
661 	u8 reg;
662 	int i, pos = 0;
663 
664 	if (std == V4L2_STD_ALL) {
665 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
666 		return 0;
667 	} else if (std & V4L2_STD_625_50) {
668 		/* Don't follow NTSC Line number convension */
669 		line += 3;
670 	}
671 
672 	if (line < 6 || line > 27)
673 		return 0;
674 
675 	for (i = 0; i < ARRAY_SIZE(vbi_ram_default); i++) {
676 		const struct i2c_vbi_ram_value *regs =  &vbi_ram_default[i];
677 
678 		if (!regs->type.vbi_type)
679 			continue;
680 
681 		if ((type & regs->type.vbi_type) &&
682 		    (line >= regs->type.ini_line) &&
683 		    (line <= regs->type.end_line))
684 			break;
685 		pos++;
686 	}
687 
688 	type = pos | (flags & 0xf0);
689 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
690 
691 	if (fields & 1)
692 		regmap_write(decoder->regmap, reg, type);
693 
694 	if (fields & 2)
695 		regmap_write(decoder->regmap, reg + 1, type);
696 
697 	return type;
698 }
699 
700 static int tvp5150_get_vbi(struct v4l2_subdev *sd, int line)
701 {
702 	struct tvp5150 *decoder = to_tvp5150(sd);
703 	v4l2_std_id std = decoder->norm;
704 	u8 reg;
705 	int pos, type = 0;
706 	int i, ret = 0;
707 
708 	if (std == V4L2_STD_ALL) {
709 		dev_err(sd->dev, "VBI can't be configured without knowing number of lines\n");
710 		return 0;
711 	} else if (std & V4L2_STD_625_50) {
712 		/* Don't follow NTSC Line number convension */
713 		line += 3;
714 	}
715 
716 	if (line < 6 || line > 27)
717 		return 0;
718 
719 	reg = ((line - 6) << 1) + TVP5150_LINE_MODE_INI;
720 
721 	for (i = 0; i <= 1; i++) {
722 		ret = tvp5150_read(sd, reg + i);
723 		if (ret < 0) {
724 			dev_err(sd->dev, "%s: failed with error = %d\n",
725 				 __func__, ret);
726 			return 0;
727 		}
728 		pos = ret & 0x0f;
729 		if (pos < ARRAY_SIZE(vbi_ram_default))
730 			type |= vbi_ram_default[pos].type.vbi_type;
731 	}
732 
733 	return type;
734 }
735 
736 static int tvp5150_set_std(struct v4l2_subdev *sd, v4l2_std_id std)
737 {
738 	struct tvp5150 *decoder = to_tvp5150(sd);
739 	int fmt = 0;
740 
741 	/* First tests should be against specific std */
742 
743 	if (std == V4L2_STD_NTSC_443) {
744 		fmt = VIDEO_STD_NTSC_4_43_BIT;
745 	} else if (std == V4L2_STD_PAL_M) {
746 		fmt = VIDEO_STD_PAL_M_BIT;
747 	} else if (std == V4L2_STD_PAL_N || std == V4L2_STD_PAL_Nc) {
748 		fmt = VIDEO_STD_PAL_COMBINATION_N_BIT;
749 	} else {
750 		/* Then, test against generic ones */
751 		if (std & V4L2_STD_NTSC)
752 			fmt = VIDEO_STD_NTSC_MJ_BIT;
753 		else if (std & V4L2_STD_PAL)
754 			fmt = VIDEO_STD_PAL_BDGHIN_BIT;
755 		else if (std & V4L2_STD_SECAM)
756 			fmt = VIDEO_STD_SECAM_BIT;
757 	}
758 
759 	dev_dbg_lvl(sd->dev, 1, debug, "Set video std register to %d.\n", fmt);
760 	regmap_write(decoder->regmap, TVP5150_VIDEO_STD, fmt);
761 	return 0;
762 }
763 
764 static int tvp5150_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
765 {
766 	struct tvp5150 *decoder = to_tvp5150(sd);
767 
768 	*std = decoder->norm;
769 
770 	return 0;
771 }
772 
773 static int tvp5150_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
774 {
775 	struct tvp5150 *decoder = to_tvp5150(sd);
776 
777 	if (decoder->norm == std)
778 		return 0;
779 
780 	/* Change cropping height limits */
781 	if (std & V4L2_STD_525_60)
782 		decoder->rect.height = TVP5150_V_MAX_525_60;
783 	else
784 		decoder->rect.height = TVP5150_V_MAX_OTHERS;
785 
786 	decoder->norm = std;
787 
788 	return tvp5150_set_std(sd, std);
789 }
790 
791 static v4l2_std_id tvp5150_read_std(struct v4l2_subdev *sd)
792 {
793 	int val = tvp5150_read(sd, TVP5150_STATUS_REG_5);
794 
795 	switch (val & 0x0F) {
796 	case 0x01:
797 		return V4L2_STD_NTSC;
798 	case 0x03:
799 		return V4L2_STD_PAL;
800 	case 0x05:
801 		return V4L2_STD_PAL_M;
802 	case 0x07:
803 		return V4L2_STD_PAL_N | V4L2_STD_PAL_Nc;
804 	case 0x09:
805 		return V4L2_STD_NTSC_443;
806 	case 0xb:
807 		return V4L2_STD_SECAM;
808 	default:
809 		return V4L2_STD_UNKNOWN;
810 	}
811 }
812 
813 static int query_lock(struct v4l2_subdev *sd)
814 {
815 	struct tvp5150 *decoder = to_tvp5150(sd);
816 	int status;
817 
818 	if (decoder->irq)
819 		return decoder->lock;
820 
821 	regmap_read(decoder->regmap, TVP5150_STATUS_REG_1, &status);
822 
823 	/* For standard detection, we need the 3 locks */
824 	return (status & 0x0e) == 0x0e;
825 }
826 
827 static int tvp5150_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id)
828 {
829 	*std_id = query_lock(sd) ? tvp5150_read_std(sd) : V4L2_STD_UNKNOWN;
830 
831 	return 0;
832 }
833 
834 static const struct v4l2_event tvp5150_ev_fmt = {
835 	.type = V4L2_EVENT_SOURCE_CHANGE,
836 	.u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
837 };
838 
839 static irqreturn_t tvp5150_isr(int irq, void *dev_id)
840 {
841 	struct tvp5150 *decoder = dev_id;
842 	struct regmap *map = decoder->regmap;
843 	unsigned int mask, active = 0, status = 0;
844 
845 	mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
846 	       TVP5150_MISC_CTL_CLOCK_OE;
847 
848 	regmap_read(map, TVP5150_INT_STATUS_REG_A, &status);
849 	if (status) {
850 		regmap_write(map, TVP5150_INT_STATUS_REG_A, status);
851 
852 		if (status & TVP5150_INT_A_LOCK) {
853 			decoder->lock = !!(status & TVP5150_INT_A_LOCK_STATUS);
854 			dev_dbg_lvl(decoder->sd.dev, 1, debug,
855 				    "sync lo%s signal\n",
856 				    decoder->lock ? "ck" : "ss");
857 			v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
858 			regmap_update_bits(map, TVP5150_MISC_CTL, mask,
859 					   decoder->lock ? decoder->oe : 0);
860 		}
861 
862 		return IRQ_HANDLED;
863 	}
864 
865 	regmap_read(map, TVP5150_INT_ACTIVE_REG_B, &active);
866 	if (active) {
867 		status = 0;
868 		regmap_read(map, TVP5150_INT_STATUS_REG_B, &status);
869 		if (status)
870 			regmap_write(map, TVP5150_INT_RESET_REG_B, status);
871 	}
872 
873 	return IRQ_HANDLED;
874 }
875 
876 static int tvp5150_reset(struct v4l2_subdev *sd, u32 val)
877 {
878 	struct tvp5150 *decoder = to_tvp5150(sd);
879 	struct regmap *map = decoder->regmap;
880 
881 	/* Initializes TVP5150 to its default values */
882 	tvp5150_write_inittab(sd, tvp5150_init_default);
883 
884 	if (decoder->irq) {
885 		/* Configure pins: FID, VSYNC, INTREQ, SCLK */
886 		regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x0);
887 		/* Set interrupt polarity to active high */
888 		regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE | 0x1);
889 		regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x1);
890 	} else {
891 		/* Configure pins: FID, VSYNC, GPCL/VBLK, SCLK */
892 		regmap_write(map, TVP5150_CONF_SHARED_PIN, 0x2);
893 		/* Keep interrupt polarity active low */
894 		regmap_write(map, TVP5150_INT_CONF, TVP5150_VDPOE);
895 		regmap_write(map, TVP5150_INTT_CONFIG_REG_B, 0x0);
896 	}
897 
898 	/* Initializes VDP registers */
899 	tvp5150_vdp_init(sd);
900 
901 	/* Selects decoder input */
902 	tvp5150_selmux(sd);
903 
904 	/* Initialize image preferences */
905 	v4l2_ctrl_handler_setup(&decoder->hdl);
906 
907 	return 0;
908 }
909 
910 static int tvp5150_enable(struct v4l2_subdev *sd)
911 {
912 	struct tvp5150 *decoder = to_tvp5150(sd);
913 	v4l2_std_id std;
914 
915 	/* Initializes TVP5150 to stream enabled values */
916 	tvp5150_write_inittab(sd, tvp5150_init_enable);
917 
918 	if (decoder->norm == V4L2_STD_ALL)
919 		std = tvp5150_read_std(sd);
920 	else
921 		std = decoder->norm;
922 
923 	/* Disable autoswitch mode */
924 	tvp5150_set_std(sd, std);
925 
926 	/*
927 	 * Enable the YCbCr and clock outputs. In discrete sync mode
928 	 * (non-BT.656) additionally enable the the sync outputs.
929 	 */
930 	switch (decoder->mbus_type) {
931 	case V4L2_MBUS_PARALLEL:
932 		/* 8-bit 4:2:2 YUV with discrete sync output */
933 		regmap_update_bits(decoder->regmap, TVP5150_DATA_RATE_SEL,
934 				   0x7, 0x0);
935 		decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
936 			      TVP5150_MISC_CTL_CLOCK_OE |
937 			      TVP5150_MISC_CTL_SYNC_OE;
938 		break;
939 	case V4L2_MBUS_BT656:
940 		decoder->oe = TVP5150_MISC_CTL_YCBCR_OE |
941 			      TVP5150_MISC_CTL_CLOCK_OE;
942 		break;
943 	default:
944 		return -EINVAL;
945 	}
946 
947 	return 0;
948 };
949 
950 static int tvp5150_s_ctrl(struct v4l2_ctrl *ctrl)
951 {
952 	struct v4l2_subdev *sd = to_sd(ctrl);
953 	struct tvp5150 *decoder = to_tvp5150(sd);
954 
955 	switch (ctrl->id) {
956 	case V4L2_CID_BRIGHTNESS:
957 		regmap_write(decoder->regmap, TVP5150_BRIGHT_CTL, ctrl->val);
958 		return 0;
959 	case V4L2_CID_CONTRAST:
960 		regmap_write(decoder->regmap, TVP5150_CONTRAST_CTL, ctrl->val);
961 		return 0;
962 	case V4L2_CID_SATURATION:
963 		regmap_write(decoder->regmap, TVP5150_SATURATION_CTL,
964 			     ctrl->val);
965 		return 0;
966 	case V4L2_CID_HUE:
967 		regmap_write(decoder->regmap, TVP5150_HUE_CTL, ctrl->val);
968 		return 0;
969 	case V4L2_CID_TEST_PATTERN:
970 		decoder->enable = ctrl->val ? false : true;
971 		tvp5150_selmux(sd);
972 		return 0;
973 	}
974 	return -EINVAL;
975 }
976 
977 static void tvp5150_set_default(v4l2_std_id std, struct v4l2_rect *crop)
978 {
979 	/* Default is no cropping */
980 	crop->top = 0;
981 	crop->left = 0;
982 	crop->width = TVP5150_H_MAX;
983 	if (std & V4L2_STD_525_60)
984 		crop->height = TVP5150_V_MAX_525_60;
985 	else
986 		crop->height = TVP5150_V_MAX_OTHERS;
987 }
988 
989 static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
990 			    struct v4l2_subdev_pad_config *cfg,
991 			    struct v4l2_subdev_format *format)
992 {
993 	struct v4l2_mbus_framefmt *f;
994 	struct tvp5150 *decoder = to_tvp5150(sd);
995 
996 	if (!format || (format->pad != TVP5150_PAD_VID_OUT))
997 		return -EINVAL;
998 
999 	f = &format->format;
1000 
1001 	f->width = decoder->rect.width;
1002 	f->height = decoder->rect.height / 2;
1003 
1004 	f->code = TVP5150_MBUS_FMT;
1005 	f->field = TVP5150_FIELD;
1006 	f->colorspace = TVP5150_COLORSPACE;
1007 
1008 	dev_dbg_lvl(sd->dev, 1, debug, "width = %d, height = %d\n", f->width,
1009 		    f->height);
1010 	return 0;
1011 }
1012 
1013 static int tvp5150_set_selection(struct v4l2_subdev *sd,
1014 				 struct v4l2_subdev_pad_config *cfg,
1015 				 struct v4l2_subdev_selection *sel)
1016 {
1017 	struct tvp5150 *decoder = to_tvp5150(sd);
1018 	struct v4l2_rect rect = sel->r;
1019 	v4l2_std_id std;
1020 	int hmax;
1021 
1022 	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE ||
1023 	    sel->target != V4L2_SEL_TGT_CROP)
1024 		return -EINVAL;
1025 
1026 	dev_dbg_lvl(sd->dev, 1, debug, "%s left=%d, top=%d, width=%d, height=%d\n",
1027 		__func__, rect.left, rect.top, rect.width, rect.height);
1028 
1029 	/* tvp5150 has some special limits */
1030 	rect.left = clamp(rect.left, 0, TVP5150_MAX_CROP_LEFT);
1031 	rect.top = clamp(rect.top, 0, TVP5150_MAX_CROP_TOP);
1032 
1033 	/* Calculate height based on current standard */
1034 	if (decoder->norm == V4L2_STD_ALL)
1035 		std = tvp5150_read_std(sd);
1036 	else
1037 		std = decoder->norm;
1038 
1039 	if (std & V4L2_STD_525_60)
1040 		hmax = TVP5150_V_MAX_525_60;
1041 	else
1042 		hmax = TVP5150_V_MAX_OTHERS;
1043 
1044 	/*
1045 	 * alignments:
1046 	 *  - width = 2 due to UYVY colorspace
1047 	 *  - height, image = no special alignment
1048 	 */
1049 	v4l_bound_align_image(&rect.width,
1050 			      TVP5150_H_MAX - TVP5150_MAX_CROP_LEFT - rect.left,
1051 			      TVP5150_H_MAX - rect.left, 1, &rect.height,
1052 			      hmax - TVP5150_MAX_CROP_TOP - rect.top,
1053 			      hmax - rect.top, 0, 0);
1054 
1055 	regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START, rect.top);
1056 	regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP,
1057 		     rect.top + rect.height - hmax);
1058 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_MSB,
1059 		     rect.left >> TVP5150_CROP_SHIFT);
1060 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_ST_LSB,
1061 		     rect.left | (1 << TVP5150_CROP_SHIFT));
1062 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_MSB,
1063 		     (rect.left + rect.width - TVP5150_MAX_CROP_LEFT) >>
1064 		     TVP5150_CROP_SHIFT);
1065 	regmap_write(decoder->regmap, TVP5150_ACT_VD_CROP_STP_LSB,
1066 		     rect.left + rect.width - TVP5150_MAX_CROP_LEFT);
1067 
1068 	decoder->rect = rect;
1069 
1070 	return 0;
1071 }
1072 
1073 static int tvp5150_get_selection(struct v4l2_subdev *sd,
1074 				 struct v4l2_subdev_pad_config *cfg,
1075 				 struct v4l2_subdev_selection *sel)
1076 {
1077 	struct tvp5150 *decoder = container_of(sd, struct tvp5150, sd);
1078 	v4l2_std_id std;
1079 
1080 	if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE)
1081 		return -EINVAL;
1082 
1083 	switch (sel->target) {
1084 	case V4L2_SEL_TGT_CROP_BOUNDS:
1085 		sel->r.left = 0;
1086 		sel->r.top = 0;
1087 		sel->r.width = TVP5150_H_MAX;
1088 
1089 		/* Calculate height based on current standard */
1090 		if (decoder->norm == V4L2_STD_ALL)
1091 			std = tvp5150_read_std(sd);
1092 		else
1093 			std = decoder->norm;
1094 		if (std & V4L2_STD_525_60)
1095 			sel->r.height = TVP5150_V_MAX_525_60;
1096 		else
1097 			sel->r.height = TVP5150_V_MAX_OTHERS;
1098 		return 0;
1099 	case V4L2_SEL_TGT_CROP:
1100 		sel->r = decoder->rect;
1101 		return 0;
1102 	default:
1103 		return -EINVAL;
1104 	}
1105 }
1106 
1107 static int tvp5150_g_mbus_config(struct v4l2_subdev *sd,
1108 				 struct v4l2_mbus_config *cfg)
1109 {
1110 	struct tvp5150 *decoder = to_tvp5150(sd);
1111 
1112 	cfg->type = decoder->mbus_type;
1113 	cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING
1114 		   | V4L2_MBUS_FIELD_EVEN_LOW | V4L2_MBUS_DATA_ACTIVE_HIGH;
1115 
1116 	return 0;
1117 }
1118 
1119 /****************************************************************************
1120 			V4L2 subdev pad ops
1121  ****************************************************************************/
1122 static int tvp5150_init_cfg(struct v4l2_subdev *sd,
1123 			    struct v4l2_subdev_pad_config *cfg)
1124 {
1125 	struct tvp5150 *decoder = to_tvp5150(sd);
1126 	v4l2_std_id std;
1127 
1128 	/*
1129 	 * Reset selection to maximum on subdev_open() if autodetection is on
1130 	 * and a standard change is detected.
1131 	 */
1132 	if (decoder->norm == V4L2_STD_ALL) {
1133 		std = tvp5150_read_std(sd);
1134 		if (std != decoder->detected_norm) {
1135 			decoder->detected_norm = std;
1136 			tvp5150_set_default(std, &decoder->rect);
1137 		}
1138 	}
1139 
1140 	return 0;
1141 }
1142 
1143 static int tvp5150_enum_mbus_code(struct v4l2_subdev *sd,
1144 		struct v4l2_subdev_pad_config *cfg,
1145 		struct v4l2_subdev_mbus_code_enum *code)
1146 {
1147 	if (code->pad || code->index)
1148 		return -EINVAL;
1149 
1150 	code->code = TVP5150_MBUS_FMT;
1151 	return 0;
1152 }
1153 
1154 static int tvp5150_enum_frame_size(struct v4l2_subdev *sd,
1155 				   struct v4l2_subdev_pad_config *cfg,
1156 				   struct v4l2_subdev_frame_size_enum *fse)
1157 {
1158 	struct tvp5150 *decoder = to_tvp5150(sd);
1159 
1160 	if (fse->index >= 8 || fse->code != TVP5150_MBUS_FMT)
1161 		return -EINVAL;
1162 
1163 	fse->code = TVP5150_MBUS_FMT;
1164 	fse->min_width = decoder->rect.width;
1165 	fse->max_width = decoder->rect.width;
1166 	fse->min_height = decoder->rect.height / 2;
1167 	fse->max_height = decoder->rect.height / 2;
1168 
1169 	return 0;
1170 }
1171 
1172 /****************************************************************************
1173 			Media entity ops
1174  ****************************************************************************/
1175 
1176 #ifdef CONFIG_MEDIA_CONTROLLER
1177 static int tvp5150_link_setup(struct media_entity *entity,
1178 			      const struct media_pad *local,
1179 			      const struct media_pad *remote, u32 flags)
1180 {
1181 	struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
1182 	struct tvp5150 *decoder = to_tvp5150(sd);
1183 	int i;
1184 
1185 	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1186 		if (remote->entity == &decoder->input_ent[i])
1187 			break;
1188 	}
1189 
1190 	/* Do nothing for entities that are not input connectors */
1191 	if (i == TVP5150_INPUT_NUM)
1192 		return 0;
1193 
1194 	decoder->input = i;
1195 
1196 	tvp5150_selmux(sd);
1197 
1198 	return 0;
1199 }
1200 
1201 static const struct media_entity_operations tvp5150_sd_media_ops = {
1202 	.link_setup = tvp5150_link_setup,
1203 };
1204 #endif
1205 
1206 /****************************************************************************
1207 			I2C Command
1208  ****************************************************************************/
1209 
1210 static int tvp5150_s_stream(struct v4l2_subdev *sd, int enable)
1211 {
1212 	struct tvp5150 *decoder = to_tvp5150(sd);
1213 	unsigned int mask, val = 0, int_val = 0;
1214 
1215 	mask = TVP5150_MISC_CTL_YCBCR_OE | TVP5150_MISC_CTL_SYNC_OE |
1216 	       TVP5150_MISC_CTL_CLOCK_OE;
1217 
1218 	if (enable) {
1219 		tvp5150_enable(sd);
1220 
1221 		/* Enable outputs if decoder is locked */
1222 		if (decoder->irq)
1223 			val = decoder->lock ? decoder->oe : 0;
1224 		else
1225 			val = decoder->oe;
1226 		int_val = TVP5150_INT_A_LOCK;
1227 		v4l2_subdev_notify_event(&decoder->sd, &tvp5150_ev_fmt);
1228 	}
1229 
1230 	regmap_update_bits(decoder->regmap, TVP5150_MISC_CTL, mask, val);
1231 	if (decoder->irq)
1232 		/* Enable / Disable lock interrupt */
1233 		regmap_update_bits(decoder->regmap, TVP5150_INT_ENABLE_REG_A,
1234 				   TVP5150_INT_A_LOCK, int_val);
1235 
1236 	return 0;
1237 }
1238 
1239 static int tvp5150_s_routing(struct v4l2_subdev *sd,
1240 			     u32 input, u32 output, u32 config)
1241 {
1242 	struct tvp5150 *decoder = to_tvp5150(sd);
1243 
1244 	decoder->input = input;
1245 	decoder->output = output;
1246 
1247 	if (output == TVP5150_BLACK_SCREEN)
1248 		decoder->enable = false;
1249 	else
1250 		decoder->enable = true;
1251 
1252 	tvp5150_selmux(sd);
1253 	return 0;
1254 }
1255 
1256 static int tvp5150_s_raw_fmt(struct v4l2_subdev *sd, struct v4l2_vbi_format *fmt)
1257 {
1258 	struct tvp5150 *decoder = to_tvp5150(sd);
1259 
1260 	/*
1261 	 * this is for capturing 36 raw vbi lines
1262 	 * if there's a way to cut off the beginning 2 vbi lines
1263 	 * with the tvp5150 then the vbi line count could be lowered
1264 	 * to 17 lines/field again, although I couldn't find a register
1265 	 * which could do that cropping
1266 	 */
1267 
1268 	if (fmt->sample_format == V4L2_PIX_FMT_GREY)
1269 		regmap_write(decoder->regmap, TVP5150_LUMA_PROC_CTL_1, 0x70);
1270 	if (fmt->count[0] == 18 && fmt->count[1] == 18) {
1271 		regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_START,
1272 			     0x00);
1273 		regmap_write(decoder->regmap, TVP5150_VERT_BLANKING_STOP, 0x01);
1274 	}
1275 	return 0;
1276 }
1277 
1278 static int tvp5150_s_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1279 {
1280 	struct tvp5150 *decoder = to_tvp5150(sd);
1281 	int i;
1282 
1283 	if (svbi->service_set != 0) {
1284 		for (i = 0; i <= 23; i++) {
1285 			svbi->service_lines[1][i] = 0;
1286 			svbi->service_lines[0][i] =
1287 				tvp5150_set_vbi(sd, svbi->service_lines[0][i],
1288 						0xf0, i, 3);
1289 		}
1290 		/* Enables FIFO */
1291 		regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 1);
1292 	} else {
1293 		/* Disables FIFO*/
1294 		regmap_write(decoder->regmap, TVP5150_FIFO_OUT_CTRL, 0);
1295 
1296 		/* Disable Full Field */
1297 		regmap_write(decoder->regmap, TVP5150_FULL_FIELD_ENA, 0);
1298 
1299 		/* Disable Line modes */
1300 		for (i = TVP5150_LINE_MODE_INI; i <= TVP5150_LINE_MODE_END; i++)
1301 			regmap_write(decoder->regmap, i, 0xff);
1302 	}
1303 	return 0;
1304 }
1305 
1306 static int tvp5150_g_sliced_fmt(struct v4l2_subdev *sd, struct v4l2_sliced_vbi_format *svbi)
1307 {
1308 	int i, mask = 0;
1309 
1310 	memset(svbi->service_lines, 0, sizeof(svbi->service_lines));
1311 
1312 	for (i = 0; i <= 23; i++) {
1313 		svbi->service_lines[0][i] =
1314 			tvp5150_get_vbi(sd, i);
1315 		mask |= svbi->service_lines[0][i];
1316 	}
1317 	svbi->service_set = mask;
1318 	return 0;
1319 }
1320 
1321 #ifdef CONFIG_VIDEO_ADV_DEBUG
1322 static int tvp5150_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
1323 {
1324 	int res;
1325 
1326 	res = tvp5150_read(sd, reg->reg & 0xff);
1327 	if (res < 0) {
1328 		dev_err(sd->dev, "%s: failed with error = %d\n", __func__, res);
1329 		return res;
1330 	}
1331 
1332 	reg->val = res;
1333 	reg->size = 1;
1334 	return 0;
1335 }
1336 
1337 static int tvp5150_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
1338 {
1339 	struct tvp5150 *decoder = to_tvp5150(sd);
1340 
1341 	return regmap_write(decoder->regmap, reg->reg & 0xff, reg->val & 0xff);
1342 }
1343 #endif
1344 
1345 static int tvp5150_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
1346 {
1347 	int status = tvp5150_read(sd, 0x88);
1348 
1349 	vt->signal = ((status & 0x04) && (status & 0x02)) ? 0xffff : 0x0;
1350 	return 0;
1351 }
1352 
1353 static int tvp5150_registered(struct v4l2_subdev *sd)
1354 {
1355 #ifdef CONFIG_MEDIA_CONTROLLER
1356 	struct tvp5150 *decoder = to_tvp5150(sd);
1357 	int ret = 0;
1358 	int i;
1359 
1360 	for (i = 0; i < TVP5150_INPUT_NUM; i++) {
1361 		struct media_entity *input = &decoder->input_ent[i];
1362 		struct media_pad *pad = &decoder->input_pad[i];
1363 
1364 		if (!input->name)
1365 			continue;
1366 
1367 		decoder->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
1368 
1369 		ret = media_entity_pads_init(input, 1, pad);
1370 		if (ret < 0)
1371 			return ret;
1372 
1373 		ret = media_device_register_entity(sd->v4l2_dev->mdev, input);
1374 		if (ret < 0)
1375 			return ret;
1376 
1377 		ret = media_create_pad_link(input, 0, &sd->entity,
1378 					    TVP5150_PAD_IF_INPUT, 0);
1379 		if (ret < 0) {
1380 			media_device_unregister_entity(input);
1381 			return ret;
1382 		}
1383 	}
1384 #endif
1385 
1386 	return 0;
1387 }
1388 
1389 /* ----------------------------------------------------------------------- */
1390 
1391 static const struct v4l2_ctrl_ops tvp5150_ctrl_ops = {
1392 	.s_ctrl = tvp5150_s_ctrl,
1393 };
1394 
1395 static const struct v4l2_subdev_core_ops tvp5150_core_ops = {
1396 	.log_status = tvp5150_log_status,
1397 	.reset = tvp5150_reset,
1398 #ifdef CONFIG_VIDEO_ADV_DEBUG
1399 	.g_register = tvp5150_g_register,
1400 	.s_register = tvp5150_s_register,
1401 #endif
1402 };
1403 
1404 static const struct v4l2_subdev_tuner_ops tvp5150_tuner_ops = {
1405 	.g_tuner = tvp5150_g_tuner,
1406 };
1407 
1408 static const struct v4l2_subdev_video_ops tvp5150_video_ops = {
1409 	.s_std = tvp5150_s_std,
1410 	.g_std = tvp5150_g_std,
1411 	.querystd = tvp5150_querystd,
1412 	.s_stream = tvp5150_s_stream,
1413 	.s_routing = tvp5150_s_routing,
1414 	.g_mbus_config = tvp5150_g_mbus_config,
1415 };
1416 
1417 static const struct v4l2_subdev_vbi_ops tvp5150_vbi_ops = {
1418 	.g_sliced_vbi_cap = tvp5150_g_sliced_vbi_cap,
1419 	.g_sliced_fmt = tvp5150_g_sliced_fmt,
1420 	.s_sliced_fmt = tvp5150_s_sliced_fmt,
1421 	.s_raw_fmt = tvp5150_s_raw_fmt,
1422 };
1423 
1424 static const struct v4l2_subdev_pad_ops tvp5150_pad_ops = {
1425 	.init_cfg = tvp5150_init_cfg,
1426 	.enum_mbus_code = tvp5150_enum_mbus_code,
1427 	.enum_frame_size = tvp5150_enum_frame_size,
1428 	.set_fmt = tvp5150_fill_fmt,
1429 	.get_fmt = tvp5150_fill_fmt,
1430 	.get_selection = tvp5150_get_selection,
1431 	.set_selection = tvp5150_set_selection,
1432 };
1433 
1434 static const struct v4l2_subdev_ops tvp5150_ops = {
1435 	.core = &tvp5150_core_ops,
1436 	.tuner = &tvp5150_tuner_ops,
1437 	.video = &tvp5150_video_ops,
1438 	.vbi = &tvp5150_vbi_ops,
1439 	.pad = &tvp5150_pad_ops,
1440 };
1441 
1442 static const struct v4l2_subdev_internal_ops tvp5150_internal_ops = {
1443 	.registered = tvp5150_registered,
1444 };
1445 
1446 /****************************************************************************
1447 			I2C Client & Driver
1448  ****************************************************************************/
1449 
1450 static const struct regmap_range tvp5150_readable_ranges[] = {
1451 	{
1452 		.range_min = TVP5150_VD_IN_SRC_SEL_1,
1453 		.range_max = TVP5150_AUTOSW_MSK,
1454 	}, {
1455 		.range_min = TVP5150_COLOR_KIL_THSH_CTL,
1456 		.range_max = TVP5150_CONF_SHARED_PIN,
1457 	}, {
1458 		.range_min = TVP5150_ACT_VD_CROP_ST_MSB,
1459 		.range_max = TVP5150_HORIZ_SYNC_START,
1460 	}, {
1461 		.range_min = TVP5150_VERT_BLANKING_START,
1462 		.range_max = TVP5150_INTT_CONFIG_REG_B,
1463 	}, {
1464 		.range_min = TVP5150_VIDEO_STD,
1465 		.range_max = TVP5150_VIDEO_STD,
1466 	}, {
1467 		.range_min = TVP5150_CB_GAIN_FACT,
1468 		.range_max = TVP5150_REV_SELECT,
1469 	}, {
1470 		.range_min = TVP5150_MSB_DEV_ID,
1471 		.range_max = TVP5150_STATUS_REG_5,
1472 	}, {
1473 		.range_min = TVP5150_CC_DATA_INI,
1474 		.range_max = TVP5150_TELETEXT_FIL_ENA,
1475 	}, {
1476 		.range_min = TVP5150_INT_STATUS_REG_A,
1477 		.range_max = TVP5150_FIFO_OUT_CTRL,
1478 	}, {
1479 		.range_min = TVP5150_FULL_FIELD_ENA,
1480 		.range_max = TVP5150_FULL_FIELD_MODE_REG,
1481 	},
1482 };
1483 
1484 static bool tvp5150_volatile_reg(struct device *dev, unsigned int reg)
1485 {
1486 	switch (reg) {
1487 	case TVP5150_VERT_LN_COUNT_MSB:
1488 	case TVP5150_VERT_LN_COUNT_LSB:
1489 	case TVP5150_INT_STATUS_REG_A:
1490 	case TVP5150_INT_STATUS_REG_B:
1491 	case TVP5150_INT_ACTIVE_REG_B:
1492 	case TVP5150_STATUS_REG_1:
1493 	case TVP5150_STATUS_REG_2:
1494 	case TVP5150_STATUS_REG_3:
1495 	case TVP5150_STATUS_REG_4:
1496 	case TVP5150_STATUS_REG_5:
1497 	/* CC, WSS, VPS, VITC data? */
1498 	case TVP5150_VBI_FIFO_READ_DATA:
1499 	case TVP5150_VDP_STATUS_REG:
1500 	case TVP5150_FIFO_WORD_COUNT:
1501 		return true;
1502 	default:
1503 		return false;
1504 	}
1505 }
1506 
1507 static const struct regmap_access_table tvp5150_readable_table = {
1508 	.yes_ranges = tvp5150_readable_ranges,
1509 	.n_yes_ranges = ARRAY_SIZE(tvp5150_readable_ranges),
1510 };
1511 
1512 static struct regmap_config tvp5150_config = {
1513 	.reg_bits = 8,
1514 	.val_bits = 8,
1515 	.max_register = 0xff,
1516 
1517 	.cache_type = REGCACHE_RBTREE,
1518 
1519 	.rd_table = &tvp5150_readable_table,
1520 	.volatile_reg = tvp5150_volatile_reg,
1521 };
1522 
1523 static int tvp5150_detect_version(struct tvp5150 *core)
1524 {
1525 	struct v4l2_subdev *sd = &core->sd;
1526 	struct i2c_client *c = v4l2_get_subdevdata(sd);
1527 	u8 regs[4];
1528 	int res;
1529 
1530 	/*
1531 	 * Read consequent registers - TVP5150_MSB_DEV_ID, TVP5150_LSB_DEV_ID,
1532 	 * TVP5150_ROM_MAJOR_VER, TVP5150_ROM_MINOR_VER
1533 	 */
1534 	res = regmap_bulk_read(core->regmap, TVP5150_MSB_DEV_ID, regs, 4);
1535 	if (res < 0) {
1536 		dev_err(&c->dev, "reading ID registers failed: %d\n", res);
1537 		return res;
1538 	}
1539 
1540 	core->dev_id = (regs[0] << 8) | regs[1];
1541 	core->rom_ver = (regs[2] << 8) | regs[3];
1542 
1543 	dev_info(sd->dev, "tvp%04x (%u.%u) chip found @ 0x%02x (%s)\n",
1544 		  core->dev_id, regs[2], regs[3], c->addr << 1,
1545 		  c->adapter->name);
1546 
1547 	if (core->dev_id == 0x5150 && core->rom_ver == 0x0321) {
1548 		dev_info(sd->dev, "tvp5150a detected.\n");
1549 	} else if (core->dev_id == 0x5150 && core->rom_ver == 0x0400) {
1550 		dev_info(sd->dev, "tvp5150am1 detected.\n");
1551 
1552 		/* ITU-T BT.656.4 timing */
1553 		regmap_write(core->regmap, TVP5150_REV_SELECT, 0);
1554 	} else if (core->dev_id == 0x5151 && core->rom_ver == 0x0100) {
1555 		dev_info(sd->dev, "tvp5151 detected.\n");
1556 	} else {
1557 		dev_info(sd->dev, "*** unknown tvp%04x chip detected.\n",
1558 			  core->dev_id);
1559 	}
1560 
1561 	return 0;
1562 }
1563 
1564 static int tvp5150_init(struct i2c_client *c)
1565 {
1566 	struct gpio_desc *pdn_gpio;
1567 	struct gpio_desc *reset_gpio;
1568 
1569 	pdn_gpio = devm_gpiod_get_optional(&c->dev, "pdn", GPIOD_OUT_HIGH);
1570 	if (IS_ERR(pdn_gpio))
1571 		return PTR_ERR(pdn_gpio);
1572 
1573 	if (pdn_gpio) {
1574 		gpiod_set_value_cansleep(pdn_gpio, 0);
1575 		/* Delay time between power supplies active and reset */
1576 		msleep(20);
1577 	}
1578 
1579 	reset_gpio = devm_gpiod_get_optional(&c->dev, "reset", GPIOD_OUT_HIGH);
1580 	if (IS_ERR(reset_gpio))
1581 		return PTR_ERR(reset_gpio);
1582 
1583 	if (reset_gpio) {
1584 		/* RESETB pulse duration */
1585 		ndelay(500);
1586 		gpiod_set_value_cansleep(reset_gpio, 0);
1587 		/* Delay time between end of reset to I2C active */
1588 		usleep_range(200, 250);
1589 	}
1590 
1591 	return 0;
1592 }
1593 
1594 static int tvp5150_parse_dt(struct tvp5150 *decoder, struct device_node *np)
1595 {
1596 	struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
1597 	struct device_node *ep;
1598 #ifdef CONFIG_MEDIA_CONTROLLER
1599 	struct device_node *connectors, *child;
1600 	struct media_entity *input;
1601 	const char *name;
1602 	u32 input_type;
1603 #endif
1604 	unsigned int flags;
1605 	int ret = 0;
1606 
1607 	ep = of_graph_get_next_endpoint(np, NULL);
1608 	if (!ep)
1609 		return -EINVAL;
1610 
1611 	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
1612 	if (ret)
1613 		goto err;
1614 
1615 	flags = bus_cfg.bus.parallel.flags;
1616 
1617 	if (bus_cfg.bus_type == V4L2_MBUS_PARALLEL &&
1618 	    !(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH &&
1619 	      flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH &&
1620 	      flags & V4L2_MBUS_FIELD_EVEN_LOW)) {
1621 		ret = -EINVAL;
1622 		goto err;
1623 	}
1624 
1625 	decoder->mbus_type = bus_cfg.bus_type;
1626 
1627 #ifdef CONFIG_MEDIA_CONTROLLER
1628 	connectors = of_get_child_by_name(np, "connectors");
1629 
1630 	if (!connectors)
1631 		goto err;
1632 
1633 	for_each_available_child_of_node(connectors, child) {
1634 		ret = of_property_read_u32(child, "input", &input_type);
1635 		if (ret) {
1636 			dev_err(decoder->sd.dev,
1637 				 "missing type property in node %pOFn\n",
1638 				 child);
1639 			goto err_connector;
1640 		}
1641 
1642 		if (input_type >= TVP5150_INPUT_NUM) {
1643 			ret = -EINVAL;
1644 			goto err_connector;
1645 		}
1646 
1647 		input = &decoder->input_ent[input_type];
1648 
1649 		/* Each input connector can only be defined once */
1650 		if (input->name) {
1651 			dev_err(decoder->sd.dev,
1652 				 "input %s with same type already exists\n",
1653 				 input->name);
1654 			ret = -EINVAL;
1655 			goto err_connector;
1656 		}
1657 
1658 		switch (input_type) {
1659 		case TVP5150_COMPOSITE0:
1660 		case TVP5150_COMPOSITE1:
1661 			input->function = MEDIA_ENT_F_CONN_COMPOSITE;
1662 			break;
1663 		case TVP5150_SVIDEO:
1664 			input->function = MEDIA_ENT_F_CONN_SVIDEO;
1665 			break;
1666 		}
1667 
1668 		input->flags = MEDIA_ENT_FL_CONNECTOR;
1669 
1670 		ret = of_property_read_string(child, "label", &name);
1671 		if (ret < 0) {
1672 			dev_err(decoder->sd.dev,
1673 				 "missing label property in node %pOFn\n",
1674 				 child);
1675 			goto err_connector;
1676 		}
1677 
1678 		input->name = name;
1679 	}
1680 
1681 err_connector:
1682 	of_node_put(connectors);
1683 #endif
1684 err:
1685 	of_node_put(ep);
1686 	return ret;
1687 }
1688 
1689 static const char * const tvp5150_test_patterns[2] = {
1690 	"Disabled",
1691 	"Black screen"
1692 };
1693 
1694 static int tvp5150_probe(struct i2c_client *c,
1695 			 const struct i2c_device_id *id)
1696 {
1697 	struct tvp5150 *core;
1698 	struct v4l2_subdev *sd;
1699 	struct device_node *np = c->dev.of_node;
1700 	struct regmap *map;
1701 	int res;
1702 
1703 	/* Check if the adapter supports the needed features */
1704 	if (!i2c_check_functionality(c->adapter,
1705 	     I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
1706 		return -EIO;
1707 
1708 	res = tvp5150_init(c);
1709 	if (res)
1710 		return res;
1711 
1712 	core = devm_kzalloc(&c->dev, sizeof(*core), GFP_KERNEL);
1713 	if (!core)
1714 		return -ENOMEM;
1715 
1716 	map = devm_regmap_init_i2c(c, &tvp5150_config);
1717 	if (IS_ERR(map))
1718 		return PTR_ERR(map);
1719 
1720 	core->regmap = map;
1721 	sd = &core->sd;
1722 
1723 	if (IS_ENABLED(CONFIG_OF) && np) {
1724 		res = tvp5150_parse_dt(core, np);
1725 		if (res) {
1726 			dev_err(sd->dev, "DT parsing error: %d\n", res);
1727 			return res;
1728 		}
1729 	} else {
1730 		/* Default to BT.656 embedded sync */
1731 		core->mbus_type = V4L2_MBUS_BT656;
1732 	}
1733 
1734 	v4l2_i2c_subdev_init(sd, c, &tvp5150_ops);
1735 	sd->internal_ops = &tvp5150_internal_ops;
1736 	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1737 
1738 #if defined(CONFIG_MEDIA_CONTROLLER)
1739 	core->pads[TVP5150_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
1740 	core->pads[TVP5150_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
1741 	core->pads[TVP5150_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
1742 	core->pads[TVP5150_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
1743 
1744 	sd->entity.function = MEDIA_ENT_F_ATV_DECODER;
1745 
1746 	res = media_entity_pads_init(&sd->entity, TVP5150_NUM_PADS, core->pads);
1747 	if (res < 0)
1748 		return res;
1749 
1750 	sd->entity.ops = &tvp5150_sd_media_ops;
1751 #endif
1752 
1753 	res = tvp5150_detect_version(core);
1754 	if (res < 0)
1755 		return res;
1756 
1757 	core->norm = V4L2_STD_ALL;	/* Default is autodetect */
1758 	core->detected_norm = V4L2_STD_UNKNOWN;
1759 	core->input = TVP5150_COMPOSITE1;
1760 	core->enable = true;
1761 
1762 	v4l2_ctrl_handler_init(&core->hdl, 5);
1763 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1764 			V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
1765 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1766 			V4L2_CID_CONTRAST, 0, 255, 1, 128);
1767 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1768 			V4L2_CID_SATURATION, 0, 255, 1, 128);
1769 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1770 			V4L2_CID_HUE, -128, 127, 1, 0);
1771 	v4l2_ctrl_new_std(&core->hdl, &tvp5150_ctrl_ops,
1772 			V4L2_CID_PIXEL_RATE, 27000000,
1773 			27000000, 1, 27000000);
1774 	v4l2_ctrl_new_std_menu_items(&core->hdl, &tvp5150_ctrl_ops,
1775 				     V4L2_CID_TEST_PATTERN,
1776 				     ARRAY_SIZE(tvp5150_test_patterns) - 1,
1777 				     0, 0, tvp5150_test_patterns);
1778 	sd->ctrl_handler = &core->hdl;
1779 	if (core->hdl.error) {
1780 		res = core->hdl.error;
1781 		goto err;
1782 	}
1783 
1784 	tvp5150_set_default(tvp5150_read_std(sd), &core->rect);
1785 
1786 	core->irq = c->irq;
1787 	tvp5150_reset(sd, 0);	/* Calls v4l2_ctrl_handler_setup() */
1788 	if (c->irq) {
1789 		res = devm_request_threaded_irq(&c->dev, c->irq, NULL,
1790 						tvp5150_isr, IRQF_TRIGGER_HIGH |
1791 						IRQF_ONESHOT, "tvp5150", core);
1792 		if (res)
1793 			return res;
1794 	}
1795 
1796 	res = v4l2_async_register_subdev(sd);
1797 	if (res < 0)
1798 		goto err;
1799 
1800 	if (debug > 1)
1801 		tvp5150_log_status(sd);
1802 	return 0;
1803 
1804 err:
1805 	v4l2_ctrl_handler_free(&core->hdl);
1806 	return res;
1807 }
1808 
1809 static int tvp5150_remove(struct i2c_client *c)
1810 {
1811 	struct v4l2_subdev *sd = i2c_get_clientdata(c);
1812 	struct tvp5150 *decoder = to_tvp5150(sd);
1813 
1814 	dev_dbg_lvl(sd->dev, 1, debug,
1815 		"tvp5150.c: removing tvp5150 adapter on address 0x%x\n",
1816 		c->addr << 1);
1817 
1818 	v4l2_async_unregister_subdev(sd);
1819 	v4l2_ctrl_handler_free(&decoder->hdl);
1820 	return 0;
1821 }
1822 
1823 /* ----------------------------------------------------------------------- */
1824 
1825 static const struct i2c_device_id tvp5150_id[] = {
1826 	{ "tvp5150", 0 },
1827 	{ }
1828 };
1829 MODULE_DEVICE_TABLE(i2c, tvp5150_id);
1830 
1831 #if IS_ENABLED(CONFIG_OF)
1832 static const struct of_device_id tvp5150_of_match[] = {
1833 	{ .compatible = "ti,tvp5150", },
1834 	{ /* sentinel */ },
1835 };
1836 MODULE_DEVICE_TABLE(of, tvp5150_of_match);
1837 #endif
1838 
1839 static struct i2c_driver tvp5150_driver = {
1840 	.driver = {
1841 		.of_match_table = of_match_ptr(tvp5150_of_match),
1842 		.name	= "tvp5150",
1843 	},
1844 	.probe		= tvp5150_probe,
1845 	.remove		= tvp5150_remove,
1846 	.id_table	= tvp5150_id,
1847 };
1848 
1849 module_i2c_driver(tvp5150_driver);
1850