[media] adv7343: use control framework
Also fixed a memory leak in the probe function if an error occurred. The gain control range was also fixed (a proper range from -64 to 64). Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -29,6 +29,7 @@
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#include <media/adv7343.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-ctrls.h>
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#include "adv7343_regs.h"
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@ -41,15 +42,13 @@ MODULE_PARM_DESC(debug, "Debug level 0-1");
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struct adv7343_state {
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struct v4l2_subdev sd;
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struct v4l2_ctrl_handler hdl;
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u8 reg00;
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u8 reg01;
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u8 reg02;
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u8 reg35;
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u8 reg80;
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u8 reg82;
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int bright;
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int hue;
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int gain;
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u32 output;
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v4l2_std_id std;
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};
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@ -59,6 +58,11 @@ static inline struct adv7343_state *to_state(struct v4l2_subdev *sd)
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return container_of(sd, struct adv7343_state, sd);
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}
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static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
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{
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return &container_of(ctrl->handler, struct adv7343_state, hdl)->sd;
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}
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static inline int adv7343_write(struct v4l2_subdev *sd, u8 reg, u8 value)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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@ -268,111 +272,22 @@ static int adv7343_log_status(struct v4l2_subdev *sd)
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return 0;
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}
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static int adv7343_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
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static int adv7343_s_ctrl(struct v4l2_ctrl *ctrl)
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{
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switch (qc->id) {
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case V4L2_CID_BRIGHTNESS:
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return v4l2_ctrl_query_fill(qc, ADV7343_BRIGHTNESS_MIN,
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ADV7343_BRIGHTNESS_MAX, 1,
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ADV7343_BRIGHTNESS_DEF);
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case V4L2_CID_HUE:
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return v4l2_ctrl_query_fill(qc, ADV7343_HUE_MIN,
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ADV7343_HUE_MAX, 1 ,
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ADV7343_HUE_DEF);
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case V4L2_CID_GAIN:
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return v4l2_ctrl_query_fill(qc, ADV7343_GAIN_MIN,
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ADV7343_GAIN_MAX, 1,
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ADV7343_GAIN_DEF);
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default:
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break;
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}
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return 0;
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}
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static int adv7343_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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struct adv7343_state *state = to_state(sd);
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int err = 0;
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struct v4l2_subdev *sd = to_sd(ctrl);
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switch (ctrl->id) {
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case V4L2_CID_BRIGHTNESS:
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if (ctrl->value < ADV7343_BRIGHTNESS_MIN ||
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ctrl->value > ADV7343_BRIGHTNESS_MAX) {
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v4l2_dbg(1, debug, sd,
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"invalid brightness settings %d\n",
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ctrl->value);
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return -ERANGE;
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}
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state->bright = ctrl->value;
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err = adv7343_write(sd, ADV7343_SD_BRIGHTNESS_WSS,
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state->bright);
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break;
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return adv7343_write(sd, ADV7343_SD_BRIGHTNESS_WSS,
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ctrl->val);
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case V4L2_CID_HUE:
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if (ctrl->value < ADV7343_HUE_MIN ||
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ctrl->value > ADV7343_HUE_MAX) {
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v4l2_dbg(1, debug, sd, "invalid hue settings %d\n",
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ctrl->value);
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return -ERANGE;
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}
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state->hue = ctrl->value;
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err = adv7343_write(sd, ADV7343_SD_HUE_REG, state->hue);
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break;
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return adv7343_write(sd, ADV7343_SD_HUE_REG, ctrl->val);
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case V4L2_CID_GAIN:
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if (ctrl->value < ADV7343_GAIN_MIN ||
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ctrl->value > ADV7343_GAIN_MAX) {
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v4l2_dbg(1, debug, sd, "invalid gain settings %d\n",
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ctrl->value);
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return -ERANGE;
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}
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if ((ctrl->value > POSITIVE_GAIN_MAX) &&
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(ctrl->value < NEGATIVE_GAIN_MIN)) {
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v4l2_dbg(1, debug, sd,
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"gain settings not within the specified range\n");
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return -ERANGE;
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}
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state->gain = ctrl->value;
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err = adv7343_write(sd, ADV7343_DAC2_OUTPUT_LEVEL, state->gain);
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break;
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default:
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return -EINVAL;
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return adv7343_write(sd, ADV7343_DAC2_OUTPUT_LEVEL, ctrl->val);
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}
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if (err < 0)
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v4l2_err(sd, "Failed to set the encoder controls\n");
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return err;
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}
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static int adv7343_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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struct adv7343_state *state = to_state(sd);
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switch (ctrl->id) {
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case V4L2_CID_BRIGHTNESS:
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ctrl->value = state->bright;
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break;
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case V4L2_CID_HUE:
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ctrl->value = state->hue;
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break;
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case V4L2_CID_GAIN:
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ctrl->value = state->gain;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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return -EINVAL;
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}
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static int adv7343_g_chip_ident(struct v4l2_subdev *sd,
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@ -383,12 +298,20 @@ static int adv7343_g_chip_ident(struct v4l2_subdev *sd,
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return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7343, 0);
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}
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static const struct v4l2_ctrl_ops adv7343_ctrl_ops = {
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.s_ctrl = adv7343_s_ctrl,
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};
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static const struct v4l2_subdev_core_ops adv7343_core_ops = {
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.log_status = adv7343_log_status,
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.g_chip_ident = adv7343_g_chip_ident,
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.g_ctrl = adv7343_g_ctrl,
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.s_ctrl = adv7343_s_ctrl,
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.queryctrl = adv7343_queryctrl,
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.log_status = adv7343_log_status,
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.g_chip_ident = adv7343_g_chip_ident,
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.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
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.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
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.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
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.g_ctrl = v4l2_subdev_g_ctrl,
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.s_ctrl = v4l2_subdev_s_ctrl,
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.queryctrl = v4l2_subdev_queryctrl,
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.querymenu = v4l2_subdev_querymenu,
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};
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static int adv7343_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
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@ -468,6 +391,7 @@ static int adv7343_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct adv7343_state *state;
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int err;
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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return -ENODEV;
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@ -490,15 +414,46 @@ static int adv7343_probe(struct i2c_client *client,
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state->std = V4L2_STD_NTSC;
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v4l2_i2c_subdev_init(&state->sd, client, &adv7343_ops);
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return adv7343_initialize(&state->sd);
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v4l2_ctrl_handler_init(&state->hdl, 2);
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v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
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V4L2_CID_BRIGHTNESS, ADV7343_BRIGHTNESS_MIN,
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ADV7343_BRIGHTNESS_MAX, 1,
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ADV7343_BRIGHTNESS_DEF);
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v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
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V4L2_CID_HUE, ADV7343_HUE_MIN,
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ADV7343_HUE_MAX, 1,
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ADV7343_HUE_DEF);
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v4l2_ctrl_new_std(&state->hdl, &adv7343_ctrl_ops,
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V4L2_CID_GAIN, ADV7343_GAIN_MIN,
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ADV7343_GAIN_MAX, 1,
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ADV7343_GAIN_DEF);
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state->sd.ctrl_handler = &state->hdl;
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if (state->hdl.error) {
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int err = state->hdl.error;
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v4l2_ctrl_handler_free(&state->hdl);
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kfree(state);
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return err;
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}
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v4l2_ctrl_handler_setup(&state->hdl);
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err = adv7343_initialize(&state->sd);
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if (err) {
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v4l2_ctrl_handler_free(&state->hdl);
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kfree(state);
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}
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return err;
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}
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static int adv7343_remove(struct i2c_client *client)
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{
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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struct adv7343_state *state = to_state(sd);
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v4l2_device_unregister_subdev(sd);
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kfree(to_state(sd));
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v4l2_ctrl_handler_free(&state->hdl);
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kfree(state);
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return 0;
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}
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@ -102,10 +102,6 @@ struct adv7343_std_info {
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/* Bit masks for DAC output levels */
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#define DAC_OUTPUT_LEVEL_MASK (0xFF)
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#define POSITIVE_GAIN_MAX (0x40)
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#define POSITIVE_GAIN_MIN (0x00)
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#define NEGATIVE_GAIN_MAX (0xFF)
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#define NEGATIVE_GAIN_MIN (0xC0)
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/* Bit masks for soft reset register */
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#define SOFT_RESET (0x02)
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@ -178,8 +174,8 @@ struct adv7343_std_info {
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#define ADV7343_HUE_MAX (255)
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#define ADV7343_HUE_MIN (0)
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#define ADV7343_HUE_DEF (127)
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#define ADV7343_GAIN_MAX (255)
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#define ADV7343_GAIN_MIN (0)
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#define ADV7343_GAIN_MAX (64)
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#define ADV7343_GAIN_MIN (-64)
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#define ADV7343_GAIN_DEF (0)
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#endif
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