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path: root/drivers/media/i2c/adv7183.c
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Diffstat (limited to 'drivers/media/i2c/adv7183.c')
-rw-r--r--drivers/media/i2c/adv7183.c643
1 files changed, 643 insertions, 0 deletions
diff --git a/drivers/media/i2c/adv7183.c b/drivers/media/i2c/adv7183.c
new file mode 100644
index 0000000000..3659feafac
--- /dev/null
+++ b/drivers/media/i2c/adv7183.c
@@ -0,0 +1,643 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * adv7183.c Analog Devices ADV7183 video decoder driver
+ *
+ * Copyright (c) 2011 Analog Devices Inc.
+ */
+
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
+#include <media/i2c/adv7183.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+
+#include "adv7183_regs.h"
+
+struct adv7183 {
+ struct v4l2_subdev sd;
+ struct v4l2_ctrl_handler hdl;
+
+ v4l2_std_id std; /* Current set standard */
+ u32 input;
+ u32 output;
+ struct gpio_desc *reset_pin;
+ struct gpio_desc *oe_pin;
+ struct v4l2_mbus_framefmt fmt;
+};
+
+/* EXAMPLES USING 27 MHz CLOCK
+ * Mode 1 CVBS Input (Composite Video on AIN5)
+ * All standards are supported through autodetect, 8-bit, 4:2:2, ITU-R BT.656 output on P15 to P8.
+ */
+static const unsigned char adv7183_init_regs[] = {
+ ADV7183_IN_CTRL, 0x04, /* CVBS input on AIN5 */
+ ADV7183_DIGI_CLAMP_CTRL_1, 0x00, /* Slow down digital clamps */
+ ADV7183_SHAP_FILT_CTRL, 0x41, /* Set CSFM to SH1 */
+ ADV7183_ADC_CTRL, 0x16, /* Power down ADC 1 and ADC 2 */
+ ADV7183_CTI_DNR_CTRL_4, 0x04, /* Set DNR threshold to 4 for flat response */
+ /* ADI recommended programming sequence */
+ ADV7183_ADI_CTRL, 0x80,
+ ADV7183_CTI_DNR_CTRL_4, 0x20,
+ 0x52, 0x18,
+ 0x58, 0xED,
+ 0x77, 0xC5,
+ 0x7C, 0x93,
+ 0x7D, 0x00,
+ 0xD0, 0x48,
+ 0xD5, 0xA0,
+ 0xD7, 0xEA,
+ ADV7183_SD_SATURATION_CR, 0x3E,
+ ADV7183_PAL_V_END, 0x3E,
+ ADV7183_PAL_F_TOGGLE, 0x0F,
+ ADV7183_ADI_CTRL, 0x00,
+};
+
+static inline struct adv7183 *to_adv7183(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct adv7183, sd);
+}
+static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
+{
+ return &container_of(ctrl->handler, struct adv7183, hdl)->sd;
+}
+
+static inline int adv7183_read(struct v4l2_subdev *sd, unsigned char reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return i2c_smbus_read_byte_data(client, reg);
+}
+
+static inline int adv7183_write(struct v4l2_subdev *sd, unsigned char reg,
+ unsigned char value)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return i2c_smbus_write_byte_data(client, reg, value);
+}
+
+static int adv7183_writeregs(struct v4l2_subdev *sd,
+ const unsigned char *regs, unsigned int num)
+{
+ unsigned char reg, data;
+ unsigned int cnt = 0;
+
+ if (num & 0x1) {
+ v4l2_err(sd, "invalid regs array\n");
+ return -1;
+ }
+
+ while (cnt < num) {
+ reg = *regs++;
+ data = *regs++;
+ cnt += 2;
+
+ adv7183_write(sd, reg, data);
+ }
+ return 0;
+}
+
+static int adv7183_log_status(struct v4l2_subdev *sd)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+
+ v4l2_info(sd, "adv7183: Input control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_IN_CTRL));
+ v4l2_info(sd, "adv7183: Video selection = 0x%02x\n",
+ adv7183_read(sd, ADV7183_VD_SEL));
+ v4l2_info(sd, "adv7183: Output control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_OUT_CTRL));
+ v4l2_info(sd, "adv7183: Extended output control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_EXT_OUT_CTRL));
+ v4l2_info(sd, "adv7183: Autodetect enable = 0x%02x\n",
+ adv7183_read(sd, ADV7183_AUTO_DET_EN));
+ v4l2_info(sd, "adv7183: Contrast = 0x%02x\n",
+ adv7183_read(sd, ADV7183_CONTRAST));
+ v4l2_info(sd, "adv7183: Brightness = 0x%02x\n",
+ adv7183_read(sd, ADV7183_BRIGHTNESS));
+ v4l2_info(sd, "adv7183: Hue = 0x%02x\n",
+ adv7183_read(sd, ADV7183_HUE));
+ v4l2_info(sd, "adv7183: Default value Y = 0x%02x\n",
+ adv7183_read(sd, ADV7183_DEF_Y));
+ v4l2_info(sd, "adv7183: Default value C = 0x%02x\n",
+ adv7183_read(sd, ADV7183_DEF_C));
+ v4l2_info(sd, "adv7183: ADI control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_ADI_CTRL));
+ v4l2_info(sd, "adv7183: Power Management = 0x%02x\n",
+ adv7183_read(sd, ADV7183_POW_MANAGE));
+ v4l2_info(sd, "adv7183: Status 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_STATUS_1),
+ adv7183_read(sd, ADV7183_STATUS_2),
+ adv7183_read(sd, ADV7183_STATUS_3));
+ v4l2_info(sd, "adv7183: Ident = 0x%02x\n",
+ adv7183_read(sd, ADV7183_IDENT));
+ v4l2_info(sd, "adv7183: Analog clamp control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_ANAL_CLAMP_CTRL));
+ v4l2_info(sd, "adv7183: Digital clamp control 1 = 0x%02x\n",
+ adv7183_read(sd, ADV7183_DIGI_CLAMP_CTRL_1));
+ v4l2_info(sd, "adv7183: Shaping filter control 1 and 2 = 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_SHAP_FILT_CTRL),
+ adv7183_read(sd, ADV7183_SHAP_FILT_CTRL_2));
+ v4l2_info(sd, "adv7183: Comb filter control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_COMB_FILT_CTRL));
+ v4l2_info(sd, "adv7183: ADI control 2 = 0x%02x\n",
+ adv7183_read(sd, ADV7183_ADI_CTRL_2));
+ v4l2_info(sd, "adv7183: Pixel delay control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_PIX_DELAY_CTRL));
+ v4l2_info(sd, "adv7183: Misc gain control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_MISC_GAIN_CTRL));
+ v4l2_info(sd, "adv7183: AGC mode control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_AGC_MODE_CTRL));
+ v4l2_info(sd, "adv7183: Chroma gain control 1 and 2 = 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_1),
+ adv7183_read(sd, ADV7183_CHRO_GAIN_CTRL_2));
+ v4l2_info(sd, "adv7183: Luma gain control 1 and 2 = 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_1),
+ adv7183_read(sd, ADV7183_LUMA_GAIN_CTRL_2));
+ v4l2_info(sd, "adv7183: Vsync field control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_VS_FIELD_CTRL_1),
+ adv7183_read(sd, ADV7183_VS_FIELD_CTRL_2),
+ adv7183_read(sd, ADV7183_VS_FIELD_CTRL_3));
+ v4l2_info(sd, "adv7183: Hsync position control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_HS_POS_CTRL_1),
+ adv7183_read(sd, ADV7183_HS_POS_CTRL_2),
+ adv7183_read(sd, ADV7183_HS_POS_CTRL_3));
+ v4l2_info(sd, "adv7183: Polarity = 0x%02x\n",
+ adv7183_read(sd, ADV7183_POLARITY));
+ v4l2_info(sd, "adv7183: ADC control = 0x%02x\n",
+ adv7183_read(sd, ADV7183_ADC_CTRL));
+ v4l2_info(sd, "adv7183: SD offset Cb and Cr = 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_SD_OFFSET_CB),
+ adv7183_read(sd, ADV7183_SD_OFFSET_CR));
+ v4l2_info(sd, "adv7183: SD saturation Cb and Cr = 0x%02x 0x%02x\n",
+ adv7183_read(sd, ADV7183_SD_SATURATION_CB),
+ adv7183_read(sd, ADV7183_SD_SATURATION_CR));
+ v4l2_info(sd, "adv7183: Drive strength = 0x%02x\n",
+ adv7183_read(sd, ADV7183_DRIVE_STR));
+ v4l2_ctrl_handler_log_status(&decoder->hdl, sd->name);
+ return 0;
+}
+
+static int adv7183_g_std(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+
+ *std = decoder->std;
+ return 0;
+}
+
+static int adv7183_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+ int reg;
+
+ reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF;
+ if (std == V4L2_STD_PAL_60)
+ reg |= 0x60;
+ else if (std == V4L2_STD_NTSC_443)
+ reg |= 0x70;
+ else if (std == V4L2_STD_PAL_N)
+ reg |= 0x90;
+ else if (std == V4L2_STD_PAL_M)
+ reg |= 0xA0;
+ else if (std == V4L2_STD_PAL_Nc)
+ reg |= 0xC0;
+ else if (std & V4L2_STD_PAL)
+ reg |= 0x80;
+ else if (std & V4L2_STD_NTSC)
+ reg |= 0x50;
+ else if (std & V4L2_STD_SECAM)
+ reg |= 0xE0;
+ else
+ return -EINVAL;
+ adv7183_write(sd, ADV7183_IN_CTRL, reg);
+
+ decoder->std = std;
+
+ return 0;
+}
+
+static int adv7183_reset(struct v4l2_subdev *sd, u32 val)
+{
+ int reg;
+
+ reg = adv7183_read(sd, ADV7183_POW_MANAGE) | 0x80;
+ adv7183_write(sd, ADV7183_POW_MANAGE, reg);
+ /* wait 5ms before any further i2c writes are performed */
+ usleep_range(5000, 10000);
+ return 0;
+}
+
+static int adv7183_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+ int reg;
+
+ if ((input > ADV7183_COMPONENT1) || (output > ADV7183_16BIT_OUT))
+ return -EINVAL;
+
+ if (input != decoder->input) {
+ decoder->input = input;
+ reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF0;
+ switch (input) {
+ case ADV7183_COMPOSITE1:
+ reg |= 0x1;
+ break;
+ case ADV7183_COMPOSITE2:
+ reg |= 0x2;
+ break;
+ case ADV7183_COMPOSITE3:
+ reg |= 0x3;
+ break;
+ case ADV7183_COMPOSITE4:
+ reg |= 0x4;
+ break;
+ case ADV7183_COMPOSITE5:
+ reg |= 0x5;
+ break;
+ case ADV7183_COMPOSITE6:
+ reg |= 0xB;
+ break;
+ case ADV7183_COMPOSITE7:
+ reg |= 0xC;
+ break;
+ case ADV7183_COMPOSITE8:
+ reg |= 0xD;
+ break;
+ case ADV7183_COMPOSITE9:
+ reg |= 0xE;
+ break;
+ case ADV7183_COMPOSITE10:
+ reg |= 0xF;
+ break;
+ case ADV7183_SVIDEO0:
+ reg |= 0x6;
+ break;
+ case ADV7183_SVIDEO1:
+ reg |= 0x7;
+ break;
+ case ADV7183_SVIDEO2:
+ reg |= 0x8;
+ break;
+ case ADV7183_COMPONENT0:
+ reg |= 0x9;
+ break;
+ case ADV7183_COMPONENT1:
+ reg |= 0xA;
+ break;
+ default:
+ break;
+ }
+ adv7183_write(sd, ADV7183_IN_CTRL, reg);
+ }
+
+ if (output != decoder->output) {
+ decoder->output = output;
+ reg = adv7183_read(sd, ADV7183_OUT_CTRL) & 0xC0;
+ switch (output) {
+ case ADV7183_16BIT_OUT:
+ reg |= 0x9;
+ break;
+ default:
+ reg |= 0xC;
+ break;
+ }
+ adv7183_write(sd, ADV7183_OUT_CTRL, reg);
+ }
+
+ return 0;
+}
+
+static int adv7183_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct v4l2_subdev *sd = to_sd(ctrl);
+ int val = ctrl->val;
+
+ switch (ctrl->id) {
+ case V4L2_CID_BRIGHTNESS:
+ if (val < 0)
+ val = 127 - val;
+ adv7183_write(sd, ADV7183_BRIGHTNESS, val);
+ break;
+ case V4L2_CID_CONTRAST:
+ adv7183_write(sd, ADV7183_CONTRAST, val);
+ break;
+ case V4L2_CID_SATURATION:
+ adv7183_write(sd, ADV7183_SD_SATURATION_CB, val >> 8);
+ adv7183_write(sd, ADV7183_SD_SATURATION_CR, (val & 0xFF));
+ break;
+ case V4L2_CID_HUE:
+ adv7183_write(sd, ADV7183_SD_OFFSET_CB, val >> 8);
+ adv7183_write(sd, ADV7183_SD_OFFSET_CR, (val & 0xFF));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int adv7183_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+ int reg;
+
+ /* enable autodetection block */
+ reg = adv7183_read(sd, ADV7183_IN_CTRL) & 0xF;
+ adv7183_write(sd, ADV7183_IN_CTRL, reg);
+
+ /* wait autodetection switch */
+ mdelay(10);
+
+ /* get autodetection result */
+ reg = adv7183_read(sd, ADV7183_STATUS_1);
+ switch ((reg >> 0x4) & 0x7) {
+ case 0:
+ *std &= V4L2_STD_NTSC;
+ break;
+ case 1:
+ *std &= V4L2_STD_NTSC_443;
+ break;
+ case 2:
+ *std &= V4L2_STD_PAL_M;
+ break;
+ case 3:
+ *std &= V4L2_STD_PAL_60;
+ break;
+ case 4:
+ *std &= V4L2_STD_PAL;
+ break;
+ case 5:
+ *std &= V4L2_STD_SECAM;
+ break;
+ case 6:
+ *std &= V4L2_STD_PAL_Nc;
+ break;
+ case 7:
+ *std &= V4L2_STD_SECAM;
+ break;
+ default:
+ *std = V4L2_STD_UNKNOWN;
+ break;
+ }
+
+ /* after std detection, write back user set std */
+ adv7183_s_std(sd, decoder->std);
+ return 0;
+}
+
+static int adv7183_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+ int reg;
+
+ *status = V4L2_IN_ST_NO_SIGNAL;
+ reg = adv7183_read(sd, ADV7183_STATUS_1);
+ if (reg < 0)
+ return reg;
+ if (reg & 0x1)
+ *status = 0;
+ return 0;
+}
+
+static int adv7183_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->pad || code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_UYVY8_2X8;
+ return 0;
+}
+
+static int adv7183_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+ struct v4l2_mbus_framefmt *fmt = &format->format;
+
+ if (format->pad)
+ return -EINVAL;
+
+ fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
+ fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
+ if (decoder->std & V4L2_STD_525_60) {
+ fmt->field = V4L2_FIELD_SEQ_TB;
+ fmt->width = 720;
+ fmt->height = 480;
+ } else {
+ fmt->field = V4L2_FIELD_SEQ_BT;
+ fmt->width = 720;
+ fmt->height = 576;
+ }
+ if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+ decoder->fmt = *fmt;
+ else
+ sd_state->pads->try_fmt = *fmt;
+ return 0;
+}
+
+static int adv7183_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+
+ if (format->pad)
+ return -EINVAL;
+
+ format->format = decoder->fmt;
+ return 0;
+}
+
+static int adv7183_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct adv7183 *decoder = to_adv7183(sd);
+
+ if (enable)
+ gpiod_set_value(decoder->oe_pin, 1);
+ else
+ gpiod_set_value(decoder->oe_pin, 0);
+ udelay(1);
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int adv7183_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
+{
+ reg->val = adv7183_read(sd, reg->reg & 0xff);
+ reg->size = 1;
+ return 0;
+}
+
+static int adv7183_s_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg)
+{
+ adv7183_write(sd, reg->reg & 0xff, reg->val & 0xff);
+ return 0;
+}
+#endif
+
+static const struct v4l2_ctrl_ops adv7183_ctrl_ops = {
+ .s_ctrl = adv7183_s_ctrl,
+};
+
+static const struct v4l2_subdev_core_ops adv7183_core_ops = {
+ .log_status = adv7183_log_status,
+ .reset = adv7183_reset,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = adv7183_g_register,
+ .s_register = adv7183_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops adv7183_video_ops = {
+ .g_std = adv7183_g_std,
+ .s_std = adv7183_s_std,
+ .s_routing = adv7183_s_routing,
+ .querystd = adv7183_querystd,
+ .g_input_status = adv7183_g_input_status,
+ .s_stream = adv7183_s_stream,
+};
+
+static const struct v4l2_subdev_pad_ops adv7183_pad_ops = {
+ .enum_mbus_code = adv7183_enum_mbus_code,
+ .get_fmt = adv7183_get_fmt,
+ .set_fmt = adv7183_set_fmt,
+};
+
+static const struct v4l2_subdev_ops adv7183_ops = {
+ .core = &adv7183_core_ops,
+ .video = &adv7183_video_ops,
+ .pad = &adv7183_pad_ops,
+};
+
+static int adv7183_probe(struct i2c_client *client)
+{
+ struct adv7183 *decoder;
+ struct v4l2_subdev *sd;
+ struct v4l2_ctrl_handler *hdl;
+ int ret;
+ struct v4l2_subdev_format fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ };
+
+ /* Check if the adapter supports the needed features */
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ v4l_info(client, "chip found @ 0x%02x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
+ if (decoder == NULL)
+ return -ENOMEM;
+
+ /*
+ * Requesting high will assert reset, the line should be
+ * flagged as active low in descriptor table or machine description.
+ */
+ decoder->reset_pin = devm_gpiod_get(&client->dev, "reset",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(decoder->reset_pin))
+ return PTR_ERR(decoder->reset_pin);
+ gpiod_set_consumer_name(decoder->reset_pin, "ADV7183 Reset");
+ /*
+ * Requesting low will start with output disabled, the line should be
+ * flagged as active low in descriptor table or machine description.
+ */
+ decoder->oe_pin = devm_gpiod_get(&client->dev, "oe",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(decoder->oe_pin))
+ return PTR_ERR(decoder->oe_pin);
+ gpiod_set_consumer_name(decoder->reset_pin, "ADV7183 Output Enable");
+
+ sd = &decoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &adv7183_ops);
+
+ hdl = &decoder->hdl;
+ v4l2_ctrl_handler_init(hdl, 4);
+ v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);
+ v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
+ V4L2_CID_CONTRAST, 0, 0xFF, 1, 0x80);
+ v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
+ V4L2_CID_SATURATION, 0, 0xFFFF, 1, 0x8080);
+ v4l2_ctrl_new_std(hdl, &adv7183_ctrl_ops,
+ V4L2_CID_HUE, 0, 0xFFFF, 1, 0x8080);
+ /* hook the control handler into the driver */
+ sd->ctrl_handler = hdl;
+ if (hdl->error) {
+ ret = hdl->error;
+
+ v4l2_ctrl_handler_free(hdl);
+ return ret;
+ }
+
+ /* v4l2 doesn't support an autodetect standard, pick PAL as default */
+ decoder->std = V4L2_STD_PAL;
+ decoder->input = ADV7183_COMPOSITE4;
+ decoder->output = ADV7183_8BIT_OUT;
+
+ /* reset chip */
+ /* reset pulse width at least 5ms */
+ mdelay(10);
+ /* De-assert reset line (descriptor tagged active low) */
+ gpiod_set_value(decoder->reset_pin, 0);
+ /* wait 5ms before any further i2c writes are performed */
+ mdelay(5);
+
+ adv7183_writeregs(sd, adv7183_init_regs, ARRAY_SIZE(adv7183_init_regs));
+ adv7183_s_std(sd, decoder->std);
+ fmt.format.width = 720;
+ fmt.format.height = 576;
+ adv7183_set_fmt(sd, NULL, &fmt);
+
+ /* initialize the hardware to the default control values */
+ ret = v4l2_ctrl_handler_setup(hdl);
+ if (ret) {
+ v4l2_ctrl_handler_free(hdl);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void adv7183_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ v4l2_ctrl_handler_free(sd->ctrl_handler);
+}
+
+static const struct i2c_device_id adv7183_id[] = {
+ {"adv7183", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, adv7183_id);
+
+static struct i2c_driver adv7183_driver = {
+ .driver = {
+ .name = "adv7183",
+ },
+ .probe = adv7183_probe,
+ .remove = adv7183_remove,
+ .id_table = adv7183_id,
+};
+
+module_i2c_driver(adv7183_driver);
+
+MODULE_DESCRIPTION("Analog Devices ADV7183 video decoder driver");
+MODULE_AUTHOR("Scott Jiang <Scott.Jiang.Linux@gmail.com>");
+MODULE_LICENSE("GPL v2");