[PATCH v1 01/15] media: i2c: imx290: Group functions in sections

Laurent Pinchart
2022-11-22T22:33:13Z

Move functions around to group them in logical sections, in order to
improve readability. As a result, the IMX290_NUM_SUPPLIES macro has to
be changed. No other code change is included, only moves.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
drivers/media/i2c/imx290.c | 626 +++++++++++++++++++------------------
1 file changed, 325 insertions(+), 301 deletions(-)

diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c
index 9954ad7376f7..aae4f51941a1 100644
--- a/drivers/media/i2c/imx290.c
+++ b/drivers/media/i2c/imx290.c
@@ -152,13 +152,7 @@
#define IMX290_PIXEL_ARRAY_RECORDING_WIDTH 1920
#define IMX290_PIXEL_ARRAY_RECORDING_HEIGHT 1080

-static const char * const imx290_supply_name[] = {
- "vdda",
- "vddd",
- "vdddo",
-};
-
-#define IMX290_NUM_SUPPLIES ARRAY_SIZE(imx290_supply_name)
+#define IMX290_NUM_SUPPLIES 3

struct imx290_regval {
u32 reg;
@@ -199,31 +193,14 @@ struct imx290 {
struct mutex lock;
};

-struct imx290_pixfmt {
- u32 code;
- u8 bpp;
-};
+static inline struct imx290 *to_imx290(struct v4l2_subdev *_sd)
+{
+ return container_of(_sd, struct imx290, sd);
+}

-static const struct imx290_pixfmt imx290_formats[] = {
- { MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
- { MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
-};
-
-static const struct regmap_config imx290_regmap_config = {
- .reg_bits = 16,
- .val_bits = 8,
-};
-
-static const char * const imx290_test_pattern_menu[] = {
- "Disabled",
- "Sequence Pattern 1",
- "Horizontal Color-bar Chart",
- "Vertical Color-bar Chart",
- "Sequence Pattern 2",
- "Gradation Pattern 1",
- "Gradation Pattern 2",
- "000/555h Toggle Pattern",
-};
+/* -----------------------------------------------------------------------------
+ * Modes and formats
+ */

static const struct imx290_regval imx290_global_init_settings[] = {
{ IMX290_CTRL_07, IMX290_WINMODE_1080P },
@@ -438,10 +415,19 @@ static inline int imx290_modes_num(const struct imx290 *imx290)
return ARRAY_SIZE(imx290_modes_4lanes);
}

-static inline struct imx290 *to_imx290(struct v4l2_subdev *_sd)
-{
- return container_of(_sd, struct imx290, sd);
-}
+struct imx290_pixfmt {
+ u32 code;
+ u8 bpp;
+};
+
+static const struct imx290_pixfmt imx290_formats[] = {
+ { MEDIA_BUS_FMT_SRGGB10_1X10, 10 },
+ { MEDIA_BUS_FMT_SRGGB12_1X12, 12 },
+};
+
+/* -----------------------------------------------------------------------------
+ * Register access
+ */

static int __always_unused imx290_read(struct imx290 *imx290, u32 addr, u32 *value)
{
@@ -501,18 +487,94 @@ static int imx290_set_register_array(struct imx290 *imx290,
return 0;
}

-/* Stop streaming */
-static int imx290_stop_streaming(struct imx290 *imx290)
+static int imx290_set_data_lanes(struct imx290 *imx290)
{
- int ret = 0;
+ int ret = 0, laneval, frsel;

- imx290_write(imx290, IMX290_STANDBY, 0x01, &ret);
+ switch (imx290->nlanes) {
+ case 2:
+ laneval = 0x01;
+ frsel = 0x02;
+ break;
+ case 4:
+ laneval = 0x03;
+ frsel = 0x01;
+ break;
+ default:
+ /*
+ * We should never hit this since the data lane count is
+ * validated in probe itself
+ */
+ dev_err(imx290->dev, "Lane configuration not supported\n");
+ return -EINVAL;
+ }

- msleep(30);
+ imx290_write(imx290, IMX290_PHY_LANE_NUM, laneval, &ret);
+ imx290_write(imx290, IMX290_CSI_LANE_MODE, laneval, &ret);
+ imx290_write(imx290, IMX290_FR_FDG_SEL, frsel, &ret);

- return imx290_write(imx290, IMX290_XMSTA, 0x01, &ret);
+ return ret;
}

+static int imx290_write_current_format(struct imx290 *imx290)
+{
+ int ret;
+
+ switch (imx290->current_format.code) {
+ case MEDIA_BUS_FMT_SRGGB10_1X10:
+ ret = imx290_set_register_array(imx290, imx290_10bit_settings,
+ ARRAY_SIZE(
+ imx290_10bit_settings));
+ if (ret < 0) {
+ dev_err(imx290->dev, "Could not set format registers\n");
+ return ret;
+ }
+ break;
+ case MEDIA_BUS_FMT_SRGGB12_1X12:
+ ret = imx290_set_register_array(imx290, imx290_12bit_settings,
+ ARRAY_SIZE(
+ imx290_12bit_settings));
+ if (ret < 0) {
+ dev_err(imx290->dev, "Could not set format registers\n");
+ return ret;
+ }
+ break;
+ default:
+ dev_err(imx290->dev, "Unknown pixel format\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static inline u8 imx290_get_link_freq_index(struct imx290 *imx290)
+{
+ return imx290->current_mode->link_freq_index;
+}
+
+static s64 imx290_get_link_freq(struct imx290 *imx290)
+{
+ u8 index = imx290_get_link_freq_index(imx290);
+
+ return *(imx290_link_freqs_ptr(imx290) + index);
+}
+
+static u64 imx290_calc_pixel_rate(struct imx290 *imx290)
+{
+ s64 link_freq = imx290_get_link_freq(imx290);
+ u8 nlanes = imx290->nlanes;
+ u64 pixel_rate;
+
+ /* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
+ pixel_rate = link_freq * 2 * nlanes;
+ do_div(pixel_rate, imx290->bpp);
+ return pixel_rate;
+}
+
+/* ----------------------------------------------------------------------------
+ * Controls
+ */
+
static int imx290_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct imx290 *imx290 = container_of(ctrl->handler,
@@ -566,6 +628,187 @@ static const struct v4l2_ctrl_ops imx290_ctrl_ops = {
.s_ctrl = imx290_set_ctrl,
};

+static const char * const imx290_test_pattern_menu[] = {
+ "Disabled",
+ "Sequence Pattern 1",
+ "Horizontal Color-bar Chart",
+ "Vertical Color-bar Chart",
+ "Sequence Pattern 2",
+ "Gradation Pattern 1",
+ "Gradation Pattern 2",
+ "000/555h Toggle Pattern",
+};
+
+static int imx290_ctrl_init(struct imx290 *imx290)
+{
+ struct v4l2_fwnode_device_properties props;
+ unsigned int blank;
+ int ret;
+
+ ret = v4l2_fwnode_device_parse(imx290->dev, &props);
+ if (ret < 0)
+ return ret;
+
+ v4l2_ctrl_handler_init(&imx290->ctrls, 9);
+ imx290->ctrls.lock = &imx290->lock;
+
+ /*
+ * The sensor has an analog gain and a digital gain, both controlled
+ * through a single gain value, expressed in 0.3dB increments. Values
+ * from 0.0dB (0) to 30.0dB (100) apply analog gain only, higher values
+ * up to 72.0dB (240) add further digital gain. Limit the range to
+ * analog gain only, support for digital gain can be added separately
+ * if needed.
+ *
+ * The IMX327 and IMX462 are largely compatible with the IMX290, but
+ * have an analog gain range of 0.0dB to 29.4dB and 42dB of digital
+ * gain. When support for those sensors gets added to the driver, the
+ * gain control should be adjusted accordingly.
+ */
+ v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0);
+
+ v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_EXPOSURE, 1, IMX290_VMAX_DEFAULT - 2, 1,
+ IMX290_VMAX_DEFAULT - 2);
+
+ imx290->link_freq =
+ v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ imx290_link_freqs_num(imx290) - 1, 0,
+ imx290_link_freqs_ptr(imx290));
+ if (imx290->link_freq)
+ imx290->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ imx290->pixel_rate = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_PIXEL_RATE,
+ 1, INT_MAX, 1,
+ imx290_calc_pixel_rate(imx290));
+
+ v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(imx290_test_pattern_menu) - 1,
+ 0, 0, imx290_test_pattern_menu);
+
+ blank = imx290->current_mode->hmax - imx290->current_mode->width;
+ imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_HBLANK, blank, blank, 1,
+ blank);
+ if (imx290->hblank)
+ imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ blank = IMX290_VMAX_DEFAULT - imx290->current_mode->height;
+ imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
+ V4L2_CID_VBLANK, blank, blank, 1,
+ blank);
+ if (imx290->vblank)
+ imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ v4l2_ctrl_new_fwnode_properties(&imx290->ctrls, &imx290_ctrl_ops,
+ &props);
+
+ imx290->sd.ctrl_handler = &imx290->ctrls;
+
+ if (imx290->ctrls.error) {
+ ret = imx290->ctrls.error;
+ v4l2_ctrl_handler_free(&imx290->ctrls);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* ----------------------------------------------------------------------------
+ * Subdev operations
+ */
+
+/* Start streaming */
+static int imx290_start_streaming(struct imx290 *imx290)
+{
+ int ret;
+
+ /* Set init register settings */
+ ret = imx290_set_register_array(imx290, imx290_global_init_settings,
+ ARRAY_SIZE(
+ imx290_global_init_settings));
+ if (ret < 0) {
+ dev_err(imx290->dev, "Could not set init registers\n");
+ return ret;
+ }
+
+ /* Apply the register values related to current frame format */
+ ret = imx290_write_current_format(imx290);
+ if (ret < 0) {
+ dev_err(imx290->dev, "Could not set frame format\n");
+ return ret;
+ }
+
+ /* Apply default values of current mode */
+ ret = imx290_set_register_array(imx290, imx290->current_mode->data,
+ imx290->current_mode->data_size);
+ if (ret < 0) {
+ dev_err(imx290->dev, "Could not set current mode\n");
+ return ret;
+ }
+
+ ret = imx290_write(imx290, IMX290_HMAX, imx290->current_mode->hmax,
+ NULL);
+ if (ret)
+ return ret;
+
+ /* Apply customized values from user */
+ ret = v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler);
+ if (ret) {
+ dev_err(imx290->dev, "Could not sync v4l2 controls\n");
+ return ret;
+ }
+
+ imx290_write(imx290, IMX290_STANDBY, 0x00, &ret);
+
+ msleep(30);
+
+ /* Start streaming */
+ return imx290_write(imx290, IMX290_XMSTA, 0x00, &ret);
+}
+
+/* Stop streaming */
+static int imx290_stop_streaming(struct imx290 *imx290)
+{
+ int ret = 0;
+
+ imx290_write(imx290, IMX290_STANDBY, 0x01, &ret);
+
+ msleep(30);
+
+ return imx290_write(imx290, IMX290_XMSTA, 0x01, &ret);
+}
+
+static int imx290_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct imx290 *imx290 = to_imx290(sd);
+ int ret = 0;
+
+ if (enable) {
+ ret = pm_runtime_resume_and_get(imx290->dev);
+ if (ret < 0)
+ goto unlock_and_return;
+
+ ret = imx290_start_streaming(imx290);
+ if (ret) {
+ dev_err(imx290->dev, "Start stream failed\n");
+ pm_runtime_put(imx290->dev);
+ goto unlock_and_return;
+ }
+ } else {
+ imx290_stop_streaming(imx290);
+ pm_runtime_put(imx290->dev);
+ }
+
+unlock_and_return:
+
+ return ret;
+}
+
static struct v4l2_mbus_framefmt *
imx290_get_pad_format(struct imx290 *imx290, struct v4l2_subdev_state *state,
u32 which)
@@ -627,30 +870,6 @@ static int imx290_get_fmt(struct v4l2_subdev *sd,
return 0;
}

-static inline u8 imx290_get_link_freq_index(struct imx290 *imx290)
-{
- return imx290->current_mode->link_freq_index;
-}
-
-static s64 imx290_get_link_freq(struct imx290 *imx290)
-{
- u8 index = imx290_get_link_freq_index(imx290);
-
- return *(imx290_link_freqs_ptr(imx290) + index);
-}
-
-static u64 imx290_calc_pixel_rate(struct imx290 *imx290)
-{
- s64 link_freq = imx290_get_link_freq(imx290);
- u8 nlanes = imx290->nlanes;
- u64 pixel_rate;
-
- /* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
- pixel_rate = link_freq * 2 * nlanes;
- do_div(pixel_rate, imx290->bpp);
- return pixel_rate;
-}
-
static int imx290_set_fmt(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *fmt)
@@ -774,151 +993,31 @@ static int imx290_entity_init_cfg(struct v4l2_subdev *subdev,
return 0;
}

-static int imx290_write_current_format(struct imx290 *imx290)
-{
- int ret;
-
- switch (imx290->current_format.code) {
- case MEDIA_BUS_FMT_SRGGB10_1X10:
- ret = imx290_set_register_array(imx290, imx290_10bit_settings,
- ARRAY_SIZE(
- imx290_10bit_settings));
- if (ret < 0) {
- dev_err(imx290->dev, "Could not set format registers\n");
- return ret;
- }
- break;
- case MEDIA_BUS_FMT_SRGGB12_1X12:
- ret = imx290_set_register_array(imx290, imx290_12bit_settings,
- ARRAY_SIZE(
- imx290_12bit_settings));
- if (ret < 0) {
- dev_err(imx290->dev, "Could not set format registers\n");
- return ret;
- }
- break;
- default:
- dev_err(imx290->dev, "Unknown pixel format\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-/* Start streaming */
-static int imx290_start_streaming(struct imx290 *imx290)
-{
- int ret;
-
- /* Set init register settings */
- ret = imx290_set_register_array(imx290, imx290_global_init_settings,
- ARRAY_SIZE(
- imx290_global_init_settings));
- if (ret < 0) {
- dev_err(imx290->dev, "Could not set init registers\n");
- return ret;
- }
-
- /* Apply the register values related to current frame format */
- ret = imx290_write_current_format(imx290);
- if (ret < 0) {
- dev_err(imx290->dev, "Could not set frame format\n");
- return ret;
- }
-
- /* Apply default values of current mode */
- ret = imx290_set_register_array(imx290, imx290->current_mode->data,
- imx290->current_mode->data_size);
- if (ret < 0) {
- dev_err(imx290->dev, "Could not set current mode\n");
- return ret;
- }
-
- ret = imx290_write(imx290, IMX290_HMAX, imx290->current_mode->hmax,
- NULL);
- if (ret)
- return ret;
-
- /* Apply customized values from user */
- ret = v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler);
- if (ret) {
- dev_err(imx290->dev, "Could not sync v4l2 controls\n");
- return ret;
- }
-
- imx290_write(imx290, IMX290_STANDBY, 0x00, &ret);
-
- msleep(30);
-
- /* Start streaming */
- return imx290_write(imx290, IMX290_XMSTA, 0x00, &ret);
-}
-
-static int imx290_set_stream(struct v4l2_subdev *sd, int enable)
-{
- struct imx290 *imx290 = to_imx290(sd);
- int ret = 0;
-
- if (enable) {
- ret = pm_runtime_resume_and_get(imx290->dev);
- if (ret < 0)
- goto unlock_and_return;
-
- ret = imx290_start_streaming(imx290);
- if (ret) {
- dev_err(imx290->dev, "Start stream failed\n");
- pm_runtime_put(imx290->dev);
- goto unlock_and_return;
- }
- } else {
- imx290_stop_streaming(imx290);
- pm_runtime_put(imx290->dev);
- }
-
-unlock_and_return:
-
- return ret;
-}
-
-static int imx290_get_regulators(struct device *dev, struct imx290 *imx290)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(imx290->supplies); i++)
- imx290->supplies[i].supply = imx290_supply_name[i];
-
- return devm_regulator_bulk_get(dev, ARRAY_SIZE(imx290->supplies),
- imx290->supplies);
-}
-
-static int imx290_set_data_lanes(struct imx290 *imx290)
-{
- int ret = 0, laneval, frsel;
-
- switch (imx290->nlanes) {
- case 2:
- laneval = 0x01;
- frsel = 0x02;
- break;
- case 4:
- laneval = 0x03;
- frsel = 0x01;
- break;
- default:
- /*
- * We should never hit this since the data lane count is
- * validated in probe itself
- */
- dev_err(imx290->dev, "Lane configuration not supported\n");
- return -EINVAL;
- }
-
- imx290_write(imx290, IMX290_PHY_LANE_NUM, laneval, &ret);
- imx290_write(imx290, IMX290_CSI_LANE_MODE, laneval, &ret);
- imx290_write(imx290, IMX290_FR_FDG_SEL, frsel, &ret);
-
- return ret;
-}
+static const struct v4l2_subdev_video_ops imx290_video_ops = {
+ .s_stream = imx290_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops imx290_pad_ops = {
+ .init_cfg = imx290_entity_init_cfg,
+ .enum_mbus_code = imx290_enum_mbus_code,
+ .enum_frame_size = imx290_enum_frame_size,
+ .get_fmt = imx290_get_fmt,
+ .set_fmt = imx290_set_fmt,
+ .get_selection = imx290_get_selection,
+};
+
+static const struct v4l2_subdev_ops imx290_subdev_ops = {
+ .video = &imx290_video_ops,
+ .pad = &imx290_pad_ops,
+};
+
+static const struct media_entity_operations imx290_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+/* ----------------------------------------------------------------------------
+ * Power management
+ */

static int imx290_power_on(struct device *dev)
{
@@ -966,105 +1065,30 @@ static const struct dev_pm_ops imx290_pm_ops = {
SET_RUNTIME_PM_OPS(imx290_power_off, imx290_power_on, NULL)
};

-static const struct v4l2_subdev_video_ops imx290_video_ops = {
- .s_stream = imx290_set_stream,
-};
-
-static const struct v4l2_subdev_pad_ops imx290_pad_ops = {
- .init_cfg = imx290_entity_init_cfg,
- .enum_mbus_code = imx290_enum_mbus_code,
- .enum_frame_size = imx290_enum_frame_size,
- .get_fmt = imx290_get_fmt,
- .set_fmt = imx290_set_fmt,
- .get_selection = imx290_get_selection,
-};
+/* ----------------------------------------------------------------------------
+ * Probe & remove
+ */

-static const struct v4l2_subdev_ops imx290_subdev_ops = {
- .video = &imx290_video_ops,
- .pad = &imx290_pad_ops,
+static const struct regmap_config imx290_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 8,
};

-static const struct media_entity_operations imx290_subdev_entity_ops = {
- .link_validate = v4l2_subdev_link_validate,
+static const char * const imx290_supply_name[IMX290_NUM_SUPPLIES] = {
+ "vdda",
+ "vddd",
+ "vdddo",
};

-static int imx290_ctrl_init(struct imx290 *imx290)
+static int imx290_get_regulators(struct device *dev, struct imx290 *imx290)
{
- struct v4l2_fwnode_device_properties props;
- unsigned int blank;
- int ret;
+ unsigned int i;

- ret = v4l2_fwnode_device_parse(imx290->dev, &props);
- if (ret < 0)
- return ret;
+ for (i = 0; i < ARRAY_SIZE(imx290->supplies); i++)
+ imx290->supplies[i].supply = imx290_supply_name[i];

- v4l2_ctrl_handler_init(&imx290->ctrls, 9);
- imx290->ctrls.lock = &imx290->lock;
-
- /*
- * The sensor has an analog gain and a digital gain, both controlled
- * through a single gain value, expressed in 0.3dB increments. Values
- * from 0.0dB (0) to 30.0dB (100) apply analog gain only, higher values
- * up to 72.0dB (240) add further digital gain. Limit the range to
- * analog gain only, support for digital gain can be added separately
- * if needed.
- *
- * The IMX327 and IMX462 are largely compatible with the IMX290, but
- * have an analog gain range of 0.0dB to 29.4dB and 42dB of digital
- * gain. When support for those sensors gets added to the driver, the
- * gain control should be adjusted accordingly.
- */
- v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0);
-
- v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_EXPOSURE, 1, IMX290_VMAX_DEFAULT - 2, 1,
- IMX290_VMAX_DEFAULT - 2);
-
- imx290->link_freq =
- v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_LINK_FREQ,
- imx290_link_freqs_num(imx290) - 1, 0,
- imx290_link_freqs_ptr(imx290));
- if (imx290->link_freq)
- imx290->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-
- imx290->pixel_rate = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_PIXEL_RATE,
- 1, INT_MAX, 1,
- imx290_calc_pixel_rate(imx290));
-
- v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(imx290_test_pattern_menu) - 1,
- 0, 0, imx290_test_pattern_menu);
-
- blank = imx290->current_mode->hmax - imx290->current_mode->width;
- imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_HBLANK, blank, blank, 1,
- blank);
- if (imx290->hblank)
- imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-
- blank = IMX290_VMAX_DEFAULT - imx290->current_mode->height;
- imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
- V4L2_CID_VBLANK, blank, blank, 1,
- blank);
- if (imx290->vblank)
- imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-
- v4l2_ctrl_new_fwnode_properties(&imx290->ctrls, &imx290_ctrl_ops,
- &props);
-
- imx290->sd.ctrl_handler = &imx290->ctrls;
-
- if (imx290->ctrls.error) {
- ret = imx290->ctrls.error;
- v4l2_ctrl_handler_free(&imx290->ctrls);
- return ret;
- }
-
- return 0;
+ return devm_regulator_bulk_get(dev, ARRAY_SIZE(imx290->supplies),
+ imx290->supplies);
}

/*