[mirror_ubuntu-artful-kernel.git] / drivers / media / i2c / ths7303.c

/*
 * ths7303/53- THS7303/53 Video Amplifier driver
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
 * Copyright 2013 Cisco Systems, Inc. and/or its affiliates.
 *
 * Author: Chaithrika U S <chaithrika@ti.com>
 *
 * Contributors:
 *     Hans Verkuil <hans.verkuil@cisco.com>
 *     Lad, Prabhakar <prabhakar.lad@ti.com>
 *     Martin Bugge <marbugge@cisco.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed .as is. WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/slab.h>

#include <media/i2c/ths7303.h>
#include <media/v4l2-device.h>

#define THS7303_CHANNEL_1	1
#define THS7303_CHANNEL_2	2
#define THS7303_CHANNEL_3	3

struct ths7303_state {
	struct v4l2_subdev		sd;
	const struct ths7303_platform_data *pdata;
	struct v4l2_bt_timings		bt;
	int std_id;
	int stream_on;
};

enum ths7303_filter_mode {
	THS7303_FILTER_MODE_480I_576I,
	THS7303_FILTER_MODE_480P_576P,
	THS7303_FILTER_MODE_720P_1080I,
	THS7303_FILTER_MODE_1080P,
	THS7303_FILTER_MODE_DISABLE
};

MODULE_DESCRIPTION("TI THS7303 video amplifier driver");
MODULE_AUTHOR("Chaithrika U S");
MODULE_LICENSE("GPL");

static inline struct ths7303_state *to_state(struct v4l2_subdev *sd)
{
	return container_of(sd, struct ths7303_state, sd);
}

static int ths7303_read(struct v4l2_subdev *sd, u8 reg)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return i2c_smbus_read_byte_data(client, reg);
}

static int ths7303_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	int ret;
	int i;

	for (i = 0; i < 3; i++) {
		ret = i2c_smbus_write_byte_data(client, reg, val);
		if (ret == 0)
			return 0;
	}
	return ret;
}

/* following function is used to set ths7303 */
static int ths7303_setval(struct v4l2_subdev *sd,
			  enum ths7303_filter_mode mode)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct ths7303_state *state = to_state(sd);
	const struct ths7303_platform_data *pdata = state->pdata;
	u8 val, sel = 0;
	int err, disable = 0;

	if (!client)
		return -EINVAL;

	switch (mode) {
	case THS7303_FILTER_MODE_1080P:
		sel = 0x3;	/*1080p and SXGA/UXGA */
		break;
	case THS7303_FILTER_MODE_720P_1080I:
		sel = 0x2;	/*720p, 1080i and SVGA/XGA */
		break;
	case THS7303_FILTER_MODE_480P_576P:
		sel = 0x1;	/* EDTV 480p/576p and VGA */
		break;
	case THS7303_FILTER_MODE_480I_576I:
		sel = 0x0;	/* SDTV, S-Video, 480i/576i */
		break;
	default:
		/* disable all channels */
		disable = 1;
	}

	val = (sel << 6) | (sel << 3);
	if (!disable)
		val |= (pdata->ch_1 & 0x27);
	err = ths7303_write(sd, THS7303_CHANNEL_1, val);
	if (err)
		goto out;

	val = (sel << 6) | (sel << 3);
	if (!disable)
		val |= (pdata->ch_2 & 0x27);
	err = ths7303_write(sd, THS7303_CHANNEL_2, val);
	if (err)
		goto out;

	val = (sel << 6) | (sel << 3);
	if (!disable)
		val |= (pdata->ch_3 & 0x27);
	err = ths7303_write(sd, THS7303_CHANNEL_3, val);
	if (err)
		goto out;

	return 0;
out:
	pr_info("write byte data failed\n");
	return err;
}

static int ths7303_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
{
	struct ths7303_state *state = to_state(sd);

	if (norm & (V4L2_STD_ALL & ~V4L2_STD_SECAM)) {
		state->std_id = 1;
		state->bt.pixelclock = 0;
		return ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I);
	}

	return ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);
}

static int ths7303_config(struct v4l2_subdev *sd)
{
	struct ths7303_state *state = to_state(sd);
	int res;

	if (!state->stream_on) {
		ths7303_write(sd, THS7303_CHANNEL_1,
			      (ths7303_read(sd, THS7303_CHANNEL_1) & 0xf8) |
			      0x00);
		ths7303_write(sd, THS7303_CHANNEL_2,
			      (ths7303_read(sd, THS7303_CHANNEL_2) & 0xf8) |
			      0x00);
		ths7303_write(sd, THS7303_CHANNEL_3,
			      (ths7303_read(sd, THS7303_CHANNEL_3) & 0xf8) |
			      0x00);
		return 0;
	}

	if (state->bt.pixelclock > 120000000)
		res = ths7303_setval(sd, THS7303_FILTER_MODE_1080P);
	else if (state->bt.pixelclock > 70000000)
		res = ths7303_setval(sd, THS7303_FILTER_MODE_720P_1080I);
	else if (state->bt.pixelclock > 20000000)
		res = ths7303_setval(sd, THS7303_FILTER_MODE_480P_576P);
	else if (state->std_id)
		res = ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I);
	else
		/* disable all channels */
		res = ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);

	return res;

}

static int ths7303_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct ths7303_state *state = to_state(sd);

	state->stream_on = enable;

	return ths7303_config(sd);
}

/* for setting filter for HD output */
static int ths7303_s_dv_timings(struct v4l2_subdev *sd,
			       struct v4l2_dv_timings *dv_timings)
{
	struct ths7303_state *state = to_state(sd);

	if (!dv_timings || dv_timings->type != V4L2_DV_BT_656_1120)
		return -EINVAL;

	state->bt = dv_timings->bt;
	state->std_id = 0;

	return ths7303_config(sd);
}

static const struct v4l2_subdev_video_ops ths7303_video_ops = {
	.s_stream	= ths7303_s_stream,
	.s_std_output	= ths7303_s_std_output,
	.s_dv_timings   = ths7303_s_dv_timings,
};

#ifdef CONFIG_VIDEO_ADV_DEBUG

static int ths7303_g_register(struct v4l2_subdev *sd,
			      struct v4l2_dbg_register *reg)
{
	reg->size = 1;
	reg->val = ths7303_read(sd, reg->reg);
	return 0;
}

static int ths7303_s_register(struct v4l2_subdev *sd,
			      const struct v4l2_dbg_register *reg)
{
	ths7303_write(sd, reg->reg, reg->val);
	return 0;
}
#endif

static const char * const stc_lpf_sel_txt[4] = {
	"500-kHz Filter",
	"2.5-MHz Filter",
	"5-MHz Filter",
	"5-MHz Filter",
};

static const char * const in_mux_sel_txt[2] = {
	"Input A Select",
	"Input B Select",
};

static const char * const lpf_freq_sel_txt[4] = {
	"9-MHz LPF",
	"16-MHz LPF",
	"35-MHz LPF",
	"Bypass LPF",
};

static const char * const in_bias_sel_dis_cont_txt[8] = {
	"Disable Channel",
	"Mute Function - No Output",
	"DC Bias Select",
	"DC Bias + 250 mV Offset Select",
	"AC Bias Select",
	"Sync Tip Clamp with low bias",
	"Sync Tip Clamp with mid bias",
	"Sync Tip Clamp with high bias",
};

static void ths7303_log_channel_status(struct v4l2_subdev *sd, u8 reg)
{
	u8 val = ths7303_read(sd, reg);

	if ((val & 0x7) == 0) {
		v4l2_info(sd, "Channel %d Off\n", reg);
		return;
	}

	v4l2_info(sd, "Channel %d On\n", reg);
	v4l2_info(sd, "  value 0x%x\n", val);
	v4l2_info(sd, "  %s\n", stc_lpf_sel_txt[(val >> 6) & 0x3]);
	v4l2_info(sd, "  %s\n", in_mux_sel_txt[(val >> 5) & 0x1]);
	v4l2_info(sd, "  %s\n", lpf_freq_sel_txt[(val >> 3) & 0x3]);
	v4l2_info(sd, "  %s\n", in_bias_sel_dis_cont_txt[(val >> 0) & 0x7]);
}

static int ths7303_log_status(struct v4l2_subdev *sd)
{
	struct ths7303_state *state = to_state(sd);

	v4l2_info(sd, "stream %s\n", state->stream_on ? "On" : "Off");

	if (state->bt.pixelclock) {
		struct v4l2_bt_timings *bt = &state->bt;
		u32 frame_width, frame_height;

		frame_width = V4L2_DV_BT_FRAME_WIDTH(bt);
		frame_height = V4L2_DV_BT_FRAME_HEIGHT(bt);
		v4l2_info(sd,
			  "timings: %dx%d%s%d (%dx%d). Pix freq. = %d Hz. Polarities = 0x%x\n",
			  bt->width, bt->height, bt->interlaced ? "i" : "p",
			  (frame_height * frame_width) > 0 ?
			  (int)bt->pixelclock /
			  (frame_height * frame_width) : 0,
			  frame_width, frame_height,
			  (int)bt->pixelclock, bt->polarities);
	} else {
		v4l2_info(sd, "no timings set\n");
	}

	ths7303_log_channel_status(sd, THS7303_CHANNEL_1);
	ths7303_log_channel_status(sd, THS7303_CHANNEL_2);
	ths7303_log_channel_status(sd, THS7303_CHANNEL_3);

	return 0;
}

static const struct v4l2_subdev_core_ops ths7303_core_ops = {
	.log_status = ths7303_log_status,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.g_register = ths7303_g_register,
	.s_register = ths7303_s_register,
#endif
};

static const struct v4l2_subdev_ops ths7303_ops = {
	.core	= &ths7303_core_ops,
	.video 	= &ths7303_video_ops,
};

static int ths7303_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct ths7303_platform_data *pdata = client->dev.platform_data;
	struct ths7303_state *state;
	struct v4l2_subdev *sd;

	if (pdata == NULL) {
		dev_err(&client->dev, "No platform data\n");
		return -EINVAL;
	}

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -ENODEV;

	v4l_info(client, "chip found @ 0x%x (%s)\n",
			client->addr << 1, client->adapter->name);

	state = devm_kzalloc(&client->dev, sizeof(struct ths7303_state),
			     GFP_KERNEL);
	if (!state)
		return -ENOMEM;

	state->pdata = pdata;
	sd = &state->sd;
	v4l2_i2c_subdev_init(sd, client, &ths7303_ops);

	/* set to default 480I_576I filter mode */
	if (ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I) < 0) {
		v4l_err(client, "Setting to 480I_576I filter mode failed!\n");
		return -EINVAL;
	}

	return 0;
}

static int ths7303_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	v4l2_device_unregister_subdev(sd);

	return 0;
}

static const struct i2c_device_id ths7303_id[] = {
	{"ths7303", 0},
	{"ths7353", 0},
	{},
};

MODULE_DEVICE_TABLE(i2c, ths7303_id);

static struct i2c_driver ths7303_driver = {
	.driver = {
		.name	= "ths73x3",
	},
	.probe		= ths7303_probe,
	.remove		= ths7303_remove,
	.id_table	= ths7303_id,
};

module_i2c_driver(ths7303_driver);
Commit	Line	Data
40199c50	1	/*
88da0183	2	* ths7303/53- THS7303/53 Video Amplifier driver
40199c50 C	3	*
40199c50 C	4	* Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
88da0183 LP	5	* Copyright 2013 Cisco Systems, Inc. and/or its affiliates.
	6	*
	7	* Author: Chaithrika U S <chaithrika@ti.com>
	8	*
	9	* Contributors:
	10	* Hans Verkuil <hans.verkuil@cisco.com>
	11	* Lad, Prabhakar <prabhakar.lad@ti.com>
	12	* Martin Bugge <marbugge@cisco.com>
40199c50 C	13	*
	14	* This program is free software; you can redistribute it and/or
	15	* modify it under the terms of the GNU General Public License as
	16	* published by the Free Software Foundation version 2.
	17	*
	18	* This program is distributed .as is. WITHOUT ANY WARRANTY of any
	19	* kind, whether express or implied; without even the implied warranty
	20	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*/
	23
40199c50	24	#include <linux/i2c.h>
40199c50	25	#include <linux/module.h>
88da0183	26	#include <linux/slab.h>
40199c50	27
b5dcee22	28	#include <media/i2c/ths7303.h>
88da0183	29	#include <media/v4l2-device.h>
40199c50	30
ad7dcb33 MH	31	#define THS7303_CHANNEL_1 1
	32	#define THS7303_CHANNEL_2 2
	33	#define THS7303_CHANNEL_3 3
	34
88da0183 LP	35	struct ths7303_state {
88da0183 LP	36	struct v4l2_subdev sd;
dd8c393b	37	const struct ths7303_platform_data *pdata;
88da0183 LP	38	struct v4l2_bt_timings bt;
	39	int std_id;
	40	int stream_on;
88da0183 LP	41	};
88da0183 LP	42
ad7dcb33 MH	43	enum ths7303_filter_mode {
	44	THS7303_FILTER_MODE_480I_576I,
	45	THS7303_FILTER_MODE_480P_576P,
	46	THS7303_FILTER_MODE_720P_1080I,
	47	THS7303_FILTER_MODE_1080P,
	48	THS7303_FILTER_MODE_DISABLE
	49	};
	50
40199c50 C	51	MODULE_DESCRIPTION("TI THS7303 video amplifier driver");
	52	MODULE_AUTHOR("Chaithrika U S");
	53	MODULE_LICENSE("GPL");
	54
88da0183 LP	55	static inline struct ths7303_state to_state(struct v4l2_subdev sd)
	56	{
	57	return container_of(sd, struct ths7303_state, sd);
	58	}
	59
	60	static int ths7303_read(struct v4l2_subdev *sd, u8 reg)
	61	{
	62	struct i2c_client *client = v4l2_get_subdevdata(sd);
	63
	64	return i2c_smbus_read_byte_data(client, reg);
	65	}
	66
	67	static int ths7303_write(struct v4l2_subdev *sd, u8 reg, u8 val)
	68	{
	69	struct i2c_client *client = v4l2_get_subdevdata(sd);
	70	int ret;
	71	int i;
	72
	73	for (i = 0; i < 3; i++) {
	74	ret = i2c_smbus_write_byte_data(client, reg, val);
	75	if (ret == 0)
	76	return 0;
	77	}
	78	return ret;
	79	}
	80
40199c50	81	/* following function is used to set ths7303 */
06eb891e RRD	82	static int ths7303_setval(struct v4l2_subdev *sd,
06eb891e RRD	83	enum ths7303_filter_mode mode)
40199c50	84	{
ad7dcb33	85	struct i2c_client *client = v4l2_get_subdevdata(sd);
88da0183	86	struct ths7303_state *state = to_state(sd);
dd8c393b	87	const struct ths7303_platform_data *pdata = state->pdata;
88da0183 LP	88	u8 val, sel = 0;
88da0183 LP	89	int err, disable = 0;
40199c50	90
ad7dcb33 MH	91	if (!client)
	92	return -EINVAL;
	93
	94	switch (mode) {
	95	case THS7303_FILTER_MODE_1080P:
88da0183	96	sel = 0x3; /1080p and SXGA/UXGA /
ad7dcb33 MH	97	break;
ad7dcb33 MH	98	case THS7303_FILTER_MODE_720P_1080I:
88da0183	99	sel = 0x2; /720p, 1080i and SVGA/XGA /
ad7dcb33 MH	100	break;
ad7dcb33 MH	101	case THS7303_FILTER_MODE_480P_576P:
88da0183	102	sel = 0x1; /* EDTV 480p/576p and VGA */
ad7dcb33 MH	103	break;
ad7dcb33 MH	104	case THS7303_FILTER_MODE_480I_576I:
88da0183	105	sel = 0x0; /* SDTV, S-Video, 480i/576i */
ad7dcb33	106	break;
ad7dcb33 MH	107	default:
	108	/* disable all channels */
	109	disable = 1;
40199c50	110	}
88da0183 LP	111
88da0183 LP	112	val = (sel << 6) \| (sel << 3);
ad7dcb33	113	if (!disable)
88da0183 LP	114	val \|= (pdata->ch_1 & 0x27);
88da0183 LP	115	err = ths7303_write(sd, THS7303_CHANNEL_1, val);
ad7dcb33 MH	116	if (err)
ad7dcb33 MH	117	goto out;
40199c50	118
88da0183	119	val = (sel << 6) \| (sel << 3);
ad7dcb33	120	if (!disable)
88da0183 LP	121	val \|= (pdata->ch_2 & 0x27);
88da0183 LP	122	err = ths7303_write(sd, THS7303_CHANNEL_2, val);
40199c50	123	if (err)
ad7dcb33	124	goto out;
40199c50	125
88da0183 LP	126	val = (sel << 6) \| (sel << 3);
	127	if (!disable)
	128	val \|= (pdata->ch_3 & 0x27);
	129	err = ths7303_write(sd, THS7303_CHANNEL_3, val);
ad7dcb33 MH	130	if (err)
ad7dcb33 MH	131	goto out;
88da0183 LP	132
88da0183 LP	133	return 0;
ad7dcb33 MH	134	out:
ad7dcb33 MH	135	pr_info("write byte data failed\n");
40199c50 C	136	return err;
	137	}
	138
	139	static int ths7303_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm)
	140	{
88da0183 LP	141	struct ths7303_state *state = to_state(sd);
	142
	143	if (norm & (V4L2_STD_ALL & ~V4L2_STD_SECAM)) {
	144	state->std_id = 1;
	145	state->bt.pixelclock = 0;
ad7dcb33	146	return ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I);
88da0183 LP	147	}
	148
	149	return ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);
ad7dcb33 MH	150	}
ad7dcb33 MH	151
88da0183	152	static int ths7303_config(struct v4l2_subdev *sd)
ad7dcb33	153	{
88da0183 LP	154	struct ths7303_state *state = to_state(sd);
	155	int res;
	156
	157	if (!state->stream_on) {
	158	ths7303_write(sd, THS7303_CHANNEL_1,
	159	(ths7303_read(sd, THS7303_CHANNEL_1) & 0xf8) \|
	160	0x00);
	161	ths7303_write(sd, THS7303_CHANNEL_2,
	162	(ths7303_read(sd, THS7303_CHANNEL_2) & 0xf8) \|
	163	0x00);
	164	ths7303_write(sd, THS7303_CHANNEL_3,
	165	(ths7303_read(sd, THS7303_CHANNEL_3) & 0xf8) \|
	166	0x00);
	167	return 0;
	168	}
ad7dcb33	169
88da0183	170	if (state->bt.pixelclock > 120000000)
ad7dcb33	171	res = ths7303_setval(sd, THS7303_FILTER_MODE_1080P);
88da0183	172	else if (state->bt.pixelclock > 70000000)
ad7dcb33	173	res = ths7303_setval(sd, THS7303_FILTER_MODE_720P_1080I);
88da0183	174	else if (state->bt.pixelclock > 20000000)
ad7dcb33	175	res = ths7303_setval(sd, THS7303_FILTER_MODE_480P_576P);
88da0183 LP	176	else if (state->std_id)
88da0183 LP	177	res = ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I);
ad7dcb33 MH	178	else
	179	/* disable all channels */
	180	res = ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE);
	181
	182	return res;
88da0183 LP	183
	184	}
	185
	186	static int ths7303_s_stream(struct v4l2_subdev *sd, int enable)
	187	{
	188	struct ths7303_state *state = to_state(sd);
	189
	190	state->stream_on = enable;
	191
	192	return ths7303_config(sd);
	193	}
	194
	195	/* for setting filter for HD output */
	196	static int ths7303_s_dv_timings(struct v4l2_subdev *sd,
	197	struct v4l2_dv_timings *dv_timings)
	198	{
	199	struct ths7303_state *state = to_state(sd);
	200
	201	if (!dv_timings \|\| dv_timings->type != V4L2_DV_BT_656_1120)
	202	return -EINVAL;
	203
	204	state->bt = dv_timings->bt;
	205	state->std_id = 0;
	206
	207	return ths7303_config(sd);
40199c50 C	208	}
40199c50 C	209
40199c50	210	static const struct v4l2_subdev_video_ops ths7303_video_ops = {
88da0183	211	.s_stream = ths7303_s_stream,
40199c50	212	.s_std_output = ths7303_s_std_output,
88da0183	213	.s_dv_timings = ths7303_s_dv_timings,
40199c50 C	214	};
40199c50 C	215
88da0183 LP	216	#ifdef CONFIG_VIDEO_ADV_DEBUG
	217
	218	static int ths7303_g_register(struct v4l2_subdev *sd,
	219	struct v4l2_dbg_register *reg)
	220	{
88da0183 LP	221	reg->size = 1;
	222	reg->val = ths7303_read(sd, reg->reg);
	223	return 0;
	224	}
	225
	226	static int ths7303_s_register(struct v4l2_subdev *sd,
977ba3b1	227	const struct v4l2_dbg_register *reg)
88da0183	228	{
88da0183 LP	229	ths7303_write(sd, reg->reg, reg->val);
	230	return 0;
	231	}
	232	#endif
	233
	234	static const char * const stc_lpf_sel_txt[4] = {
	235	"500-kHz Filter",
	236	"2.5-MHz Filter",
	237	"5-MHz Filter",
	238	"5-MHz Filter",
	239	};
	240
	241	static const char * const in_mux_sel_txt[2] = {
	242	"Input A Select",
	243	"Input B Select",
	244	};
	245
	246	static const char * const lpf_freq_sel_txt[4] = {
	247	"9-MHz LPF",
	248	"16-MHz LPF",
	249	"35-MHz LPF",
	250	"Bypass LPF",
	251	};
	252
	253	static const char * const in_bias_sel_dis_cont_txt[8] = {
	254	"Disable Channel",
	255	"Mute Function - No Output",
	256	"DC Bias Select",
	257	"DC Bias + 250 mV Offset Select",
	258	"AC Bias Select",
	259	"Sync Tip Clamp with low bias",
	260	"Sync Tip Clamp with mid bias",
	261	"Sync Tip Clamp with high bias",
	262	};
	263
	264	static void ths7303_log_channel_status(struct v4l2_subdev *sd, u8 reg)
	265	{
	266	u8 val = ths7303_read(sd, reg);
	267
	268	if ((val & 0x7) == 0) {
	269	v4l2_info(sd, "Channel %d Off\n", reg);
	270	return;
	271	}
	272
	273	v4l2_info(sd, "Channel %d On\n", reg);
	274	v4l2_info(sd, " value 0x%x\n", val);
	275	v4l2_info(sd, " %s\n", stc_lpf_sel_txt[(val >> 6) & 0x3]);
	276	v4l2_info(sd, " %s\n", in_mux_sel_txt[(val >> 5) & 0x1]);
	277	v4l2_info(sd, " %s\n", lpf_freq_sel_txt[(val >> 3) & 0x3]);
	278	v4l2_info(sd, " %s\n", in_bias_sel_dis_cont_txt[(val >> 0) & 0x7]);
	279	}
	280
	281	static int ths7303_log_status(struct v4l2_subdev *sd)
	282	{
	283	struct ths7303_state *state = to_state(sd);
	284
	285	v4l2_info(sd, "stream %s\n", state->stream_on ? "On" : "Off");
	286
	287	if (state->bt.pixelclock) {
00303f91	288	struct v4l2_bt_timings *bt = &state->bt;
88da0183 LP	289	u32 frame_width, frame_height;
88da0183 LP	290
eacf8f9a HV	291	frame_width = V4L2_DV_BT_FRAME_WIDTH(bt);
eacf8f9a HV	292	frame_height = V4L2_DV_BT_FRAME_HEIGHT(bt);
88da0183 LP	293	v4l2_info(sd,
	294	"timings: %dx%d%s%d (%dx%d). Pix freq. = %d Hz. Polarities = 0x%x\n",
	295	bt->width, bt->height, bt->interlaced ? "i" : "p",
	296	(frame_height * frame_width) > 0 ?
	297	(int)bt->pixelclock /
	298	(frame_height * frame_width) : 0,
	299	frame_width, frame_height,
	300	(int)bt->pixelclock, bt->polarities);
	301	} else {
	302	v4l2_info(sd, "no timings set\n");
	303	}
	304
	305	ths7303_log_channel_status(sd, THS7303_CHANNEL_1);
	306	ths7303_log_channel_status(sd, THS7303_CHANNEL_2);
	307	ths7303_log_channel_status(sd, THS7303_CHANNEL_3);
	308
	309	return 0;
	310	}
	311
40199c50	312	static const struct v4l2_subdev_core_ops ths7303_core_ops = {
88da0183 LP	313	.log_status = ths7303_log_status,
	314	#ifdef CONFIG_VIDEO_ADV_DEBUG
	315	.g_register = ths7303_g_register,
	316	.s_register = ths7303_s_register,
	317	#endif
40199c50 C	318	};
	319
	320	static const struct v4l2_subdev_ops ths7303_ops = {
	321	.core = &ths7303_core_ops,
	322	.video = &ths7303_video_ops,
	323	};
	324
	325	static int ths7303_probe(struct i2c_client *client,
	326	const struct i2c_device_id *id)
	327	{
88da0183 LP	328	struct ths7303_platform_data *pdata = client->dev.platform_data;
88da0183 LP	329	struct ths7303_state *state;
40199c50	330	struct v4l2_subdev *sd;
40199c50	331
dd8c393b LP	332	if (pdata == NULL) {
	333	dev_err(&client->dev, "No platform data\n");
	334	return -EINVAL;
	335	}
	336
40199c50 C	337	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	338	return -ENODEV;
	339
	340	v4l_info(client, "chip found @ 0x%x (%s)\n",
	341	client->addr << 1, client->adapter->name);
	342
88da0183 LP	343	state = devm_kzalloc(&client->dev, sizeof(struct ths7303_state),
	344	GFP_KERNEL);
	345	if (!state)
40199c50 C	346	return -ENOMEM;
40199c50 C	347
dd8c393b	348	state->pdata = pdata;
88da0183	349	sd = &state->sd;
40199c50 C	350	v4l2_i2c_subdev_init(sd, client, &ths7303_ops);
40199c50 C	351
8524ce55 LP	352	/* set to default 480I_576I filter mode */
	353	if (ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I) < 0) {
	354	v4l_err(client, "Setting to 480I_576I filter mode failed!\n");
	355	return -EINVAL;
88da0183 LP	356	}
	357
	358	return 0;
40199c50 C	359	}
	360
	361	static int ths7303_remove(struct i2c_client *client)
	362	{
	363	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	364
	365	v4l2_device_unregister_subdev(sd);
40199c50 C	366
	367	return 0;
	368	}
	369
	370	static const struct i2c_device_id ths7303_id[] = {
e1277110 HV	371	{"ths7303", 0},
e1277110 HV	372	{"ths7353", 0},
40199c50 C	373	{},
	374	};
	375
	376	MODULE_DEVICE_TABLE(i2c, ths7303_id);
	377
	378	static struct i2c_driver ths7303_driver = {
	379	.driver = {
88da0183	380	.name = "ths73x3",
40199c50 C	381	},
	382	.probe = ths7303_probe,
	383	.remove = ths7303_remove,
	384	.id_table = ths7303_id,
	385	};
	386
c6e8d86f	387	module_i2c_driver(ths7303_driver);