(Re-sending as previous time, I forgot to CC linux-media@, no wonder
I didn't receive any feedback on this series).
Another batch of improvements of the imx335 driver.
Patch 1/6 adds support for 2 or 4 lane operation modes.
Patch 2/6 call the V4L2 fwnode device parser to handle controls that are
standardised by the framework.
Patch 3/6 introduces the use of CCI for registers access.
Patch 4/5 uses decimal values for sizes registers (instead of
hexadecimal). This improves overall readability
Patch 5/6 fixes the height value discrepency. Accessible height is 1944,
as per the data sheet in all-pixel scan mode.
Patch 6/6 fixes the max analogue gain value.
changes in v3:
- fix patch 2/6 where we need to free ctrl handler
on error path.
changes in v2:
- New patch 4/6
- Drop calculating the pixel clock from link freq.
- CCI register address sort (incremental)
- Fix cci_write for REG_HOLD handling and add a comment.
- Remove unused macros as part of 3/6
Kieran Bingham (2):
media: imx335: Support 2 or 4 lane operation modes
media: imx335: Parse fwnode properties
Umang Jain (4):
media: imx335: Use V4L2 CCI for accessing sensor registers
media: imx335: Use integer values for size registers
media: imx335: Fix active area height discrepency
media: imx335: Limit analogue gain value
drivers/media/i2c/Kconfig | 1 +
drivers/media/i2c/imx335.c | 646 ++++++++++++++++++-------------------
2 files changed, 310 insertions(+), 337 deletions(-)
base-commit: 54ee11761885407056f4ca60309739e2db6b02dc
--
2.43.0
From: Kieran Bingham <[email protected]>
The IMX335 can support both 2 and 4 lane configurations.
Extend the driver to configure the lane mode accordingly.
Update the pixel rate depending on the number of lanes in use.
Signed-off-by: Kieran Bingham <[email protected]>
Signed-off-by: Umang Jain <[email protected]>
Reviewed-by: Tommaso Merciai <[email protected]>
---
drivers/media/i2c/imx335.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index dab6d080bc4c..c633ea1380e7 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -21,6 +21,11 @@
#define IMX335_MODE_STANDBY 0x01
#define IMX335_MODE_STREAMING 0x00
+/* Data Lanes */
+#define IMX335_LANEMODE 0x3a01
+#define IMX335_2LANE 1
+#define IMX335_4LANE 3
+
/* Lines per frame */
#define IMX335_REG_LPFR 0x3030
@@ -147,6 +152,7 @@ struct imx335_mode {
* @exp_ctrl: Pointer to exposure control
* @again_ctrl: Pointer to analog gain control
* @vblank: Vertical blanking in lines
+ * @lane_mode Mode for number of connected data lanes
* @cur_mode: Pointer to current selected sensor mode
* @mutex: Mutex for serializing sensor controls
* @link_freq_bitmap: Menu bitmap for link_freq_ctrl
@@ -171,6 +177,7 @@ struct imx335 {
struct v4l2_ctrl *again_ctrl;
};
u32 vblank;
+ u32 lane_mode;
const struct imx335_mode *cur_mode;
struct mutex mutex;
unsigned long link_freq_bitmap;
@@ -936,6 +943,11 @@ static int imx335_start_streaming(struct imx335 *imx335)
return ret;
}
+ /* Configure lanes */
+ ret = imx335_write_reg(imx335, IMX335_LANEMODE, 1, imx335->lane_mode);
+ if (ret)
+ return ret;
+
/* Setup handler will write actual exposure and gain */
ret = __v4l2_ctrl_handler_setup(imx335->sd.ctrl_handler);
if (ret) {
@@ -1096,7 +1108,14 @@ static int imx335_parse_hw_config(struct imx335 *imx335)
if (ret)
return ret;
- if (bus_cfg.bus.mipi_csi2.num_data_lanes != IMX335_NUM_DATA_LANES) {
+ switch (bus_cfg.bus.mipi_csi2.num_data_lanes) {
+ case 2:
+ imx335->lane_mode = IMX335_2LANE;
+ break;
+ case 4:
+ imx335->lane_mode = IMX335_4LANE;
+ break;
+ default:
dev_err(imx335->dev,
"number of CSI2 data lanes %d is not supported\n",
bus_cfg.bus.mipi_csi2.num_data_lanes);
--
2.43.0
From: Kieran Bingham <[email protected]>
Call the V4L2 fwnode device parser to handle controls that are
standardised by the framework.
Signed-off-by: Kieran Bingham <[email protected]>
Signed-off-by: Umang Jain <[email protected]>
---
drivers/media/i2c/imx335.c | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index c633ea1380e7..b8cf85984127 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -1227,10 +1227,12 @@ static int imx335_init_controls(struct imx335 *imx335)
{
struct v4l2_ctrl_handler *ctrl_hdlr = &imx335->ctrl_handler;
const struct imx335_mode *mode = imx335->cur_mode;
+ struct v4l2_fwnode_device_properties props;
u32 lpfr;
int ret;
- ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
+ /* v4l2_fwnode_device_properties can add two more controls */
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 9);
if (ret)
return ret;
@@ -1296,15 +1298,27 @@ static int imx335_init_controls(struct imx335 *imx335)
imx335->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
if (ctrl_hdlr->error) {
- dev_err(imx335->dev, "control init failed: %d\n",
- ctrl_hdlr->error);
- v4l2_ctrl_handler_free(ctrl_hdlr);
- return ctrl_hdlr->error;
+ ret = ctrl_hdlr->error;
+ dev_err(imx335->dev, "control init failed: %d\n", ret);
+ goto free_ctrl_hdlr;
}
+ ret = v4l2_fwnode_device_parse(imx335->dev, &props);
+ if (ret)
+ goto free_ctrl_hdlr;
+
+ ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx335_ctrl_ops,
+ &props);
+ if (ret)
+ goto free_ctrl_hdlr;
+
imx335->sd.ctrl_handler = ctrl_hdlr;
return 0;
+
+free_ctrl_hdlr:
+ v4l2_ctrl_handler_free(ctrl_hdlr);
+ return ret;
}
/**
--
2.43.0
Use the new comon CCI register access helpers to replace the private
register access helpers in the imx335 driver.
Select V4L2_CCI_I2C Kconfig option which the imx335 driver now
depends on.
Signed-off-by: Umang Jain <[email protected]>
---
drivers/media/i2c/Kconfig | 1 +
drivers/media/i2c/imx335.c | 593 ++++++++++++++++---------------------
2 files changed, 263 insertions(+), 331 deletions(-)
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index e4da68835683..c1f6d882efae 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -205,6 +205,7 @@ config VIDEO_IMX334
config VIDEO_IMX335
tristate "Sony IMX335 sensor support"
depends on OF_GPIO
+ select V4L2_CCI_I2C
help
This is a Video4Linux2 sensor driver for the Sony
IMX335 camera.
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index b8cf85984127..ae4341644a84 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -11,62 +11,104 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <media/v4l2-cci.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
/* Streaming Mode */
-#define IMX335_REG_MODE_SELECT 0x3000
-#define IMX335_MODE_STANDBY 0x01
-#define IMX335_MODE_STREAMING 0x00
+#define IMX335_REG_MODE_SELECT CCI_REG8(0x3000)
+#define IMX335_MODE_STANDBY 0x01
+#define IMX335_MODE_STREAMING 0x00
-/* Data Lanes */
-#define IMX335_LANEMODE 0x3a01
-#define IMX335_2LANE 1
-#define IMX335_4LANE 3
+/* Group hold register */
+#define IMX335_REG_HOLD CCI_REG8(0x3001)
+
+#define IMX335_REG_MASTER_MODE CCI_REG8(0x3002)
+#define IMX335_REG_BCWAIT_TIME CCI_REG8(0x300c)
+#define IMX335_REG_CPWAIT_TIME CCI_REG8(0x300d)
+#define IMX335_REG_WINMODE CCI_REG8(0x3018)
+#define IMX335_REG_HTRIMMING_START CCI_REG16_LE(0x302c)
+#define IMX335_REG_HNUM CCI_REG8(0x302e)
/* Lines per frame */
-#define IMX335_REG_LPFR 0x3030
+#define IMX335_REG_VMAX CCI_REG24_LE(0x3030)
-/* Chip ID */
-#define IMX335_REG_ID 0x3912
-#define IMX335_ID 0x00
+#define IMX335_REG_OPB_SIZE_V CCI_REG8(0x304c)
+#define IMX335_REG_ADBIT CCI_REG8(0x3050)
+#define IMX335_REG_Y_OUT_SIZE CCI_REG16_LE(0x3056)
-/* Exposure control */
-#define IMX335_REG_SHUTTER 0x3058
-#define IMX335_EXPOSURE_MIN 1
-#define IMX335_EXPOSURE_OFFSET 9
-#define IMX335_EXPOSURE_STEP 1
-#define IMX335_EXPOSURE_DEFAULT 0x0648
+#define IMX335_REG_SHUTTER CCI_REG24_LE(0x3058)
+#define IMX335_EXPOSURE_MIN 1
+#define IMX335_EXPOSURE_OFFSET 9
+#define IMX335_EXPOSURE_STEP 1
+#define IMX335_EXPOSURE_DEFAULT 0x0648
-/* Analog gain control */
-#define IMX335_REG_AGAIN 0x30e8
-#define IMX335_AGAIN_MIN 0
-#define IMX335_AGAIN_MAX 240
-#define IMX335_AGAIN_STEP 1
-#define IMX335_AGAIN_DEFAULT 0
+#define IMX335_REG_AREA3_ST_ADR_1 CCI_REG16_LE(0x3074)
+#define IMX335_REG_AREA3_WIDTH_1 CCI_REG16_LE(0x3076)
-/* Group hold register */
-#define IMX335_REG_HOLD 0x3001
+/* Analog gain control */
+#define IMX335_REG_AGAIN CCI_REG8(0x30e8)
+#define IMX335_AGAIN_MIN 0
+#define IMX335_AGAIN_MAX 240
+#define IMX335_AGAIN_STEP 1
+#define IMX335_AGAIN_DEFAULT 0
+
+#define IMX335_REG_TPG_TESTCLKEN CCI_REG8(0x3148)
+#define IMX335_REG_INCLKSEL1 CCI_REG16_LE(0x314c)
+#define IMX335_REG_INCLKSEL2 CCI_REG8(0x315a)
+#define IMX335_REG_INCLKSEL3 CCI_REG8(0x3168)
+#define IMX335_REG_INCLKSEL4 CCI_REG8(0x316a)
+#define IMX335_REG_MDBIT CCI_REG8(0x319d)
+#define IMX335_REG_SYSMODE CCI_REG8(0x319e)
+
+#define IMX335_REG_XVS_XHS_DRV CCI_REG8(0x31a1)
/* Test pattern generator */
-#define IMX335_REG_TPG 0x329e
-#define IMX335_TPG_ALL_000 0
-#define IMX335_TPG_ALL_FFF 1
-#define IMX335_TPG_ALL_555 2
-#define IMX335_TPG_ALL_AAA 3
-#define IMX335_TPG_TOG_555_AAA 4
-#define IMX335_TPG_TOG_AAA_555 5
-#define IMX335_TPG_TOG_000_555 6
-#define IMX335_TPG_TOG_555_000 7
-#define IMX335_TPG_TOG_000_FFF 8
-#define IMX335_TPG_TOG_FFF_000 9
-#define IMX335_TPG_H_COLOR_BARS 10
-#define IMX335_TPG_V_COLOR_BARS 11
+#define IMX335_REG_TPG_DIG_CLP_MODE CCI_REG8(0x3280)
+#define IMX335_REG_TPG_EN_DUOUT CCI_REG8(0x329c)
+#define IMX335_REG_TPG CCI_REG8(0x329e)
+#define IMX335_REG_TPG_COLORWIDTH CCI_REG8(0x32a0)
+#define IMX335_REG_TPG_BLKLEVEL CCI_REG16_LE(0x3302)
+#define IMX335_REG_TPG_WRJ_OPEN CCI_REG8(0x336c)
+#define IMX335_TPG_ALL_000 0
+#define IMX335_TPG_ALL_FFF 1
+#define IMX335_TPG_ALL_555 2
+#define IMX335_TPG_ALL_AAA 3
+#define IMX335_TPG_TOG_555_AAA 4
+#define IMX335_TPG_TOG_AAA_555 5
+#define IMX335_TPG_TOG_000_555 6
+#define IMX335_TPG_TOG_555_000 7
+#define IMX335_TPG_TOG_000_FFF 8
+#define IMX335_TPG_TOG_FFF_000 9
+#define IMX335_TPG_H_COLOR_BARS 10
+#define IMX335_TPG_V_COLOR_BARS 11
+
+#define IMX335_REG_ADBIT1 CCI_REG16_LE(0x341c)
+
+/* Chip ID */
+#define IMX335_REG_ID CCI_REG8(0x3912)
+#define IMX335_ID 0x00
+
+/* Data Lanes */
+#define IMX335_REG_LANEMODE CCI_REG8(0x3a01)
+#define IMX335_2LANE 1
+#define IMX335_4LANE 3
+
+#define IMX335_REG_TCLKPOST CCI_REG16_LE(0x3a18)
+#define IMX335_REG_TCLKPREPARE CCI_REG16_LE(0x3a1a)
+#define IMX335_REG_TCLK_TRAIL CCI_REG16_LE(0x3a1c)
+#define IMX335_REG_TCLK_ZERO CCI_REG16_LE(0x3a1e)
+#define IMX335_REG_THS_PREPARE CCI_REG16_LE(0x3a20)
+#define IMX335_REG_THS_ZERO CCI_REG16_LE(0x3a22)
+#define IMX335_REG_THS_TRAIL CCI_REG16_LE(0x3a24)
+#define IMX335_REG_THS_EXIT CCI_REG16_LE(0x3a26)
+#define IMX335_REG_TPLX CCI_REG16_LE(0x3a28)
/* Input clock rate */
-#define IMX335_INCLK_RATE 24000000
+#define IMX335_INCLK_RATE 24000000
/* CSI2 HW configuration */
#define IMX335_LINK_FREQ_594MHz 594000000LL
@@ -74,9 +116,6 @@
#define IMX335_NUM_DATA_LANES 4
-#define IMX335_REG_MIN 0x00
-#define IMX335_REG_MAX 0xfffff
-
/* IMX335 native and active pixel array size. */
#define IMX335_NATIVE_WIDTH 2616U
#define IMX335_NATIVE_HEIGHT 1964U
@@ -85,16 +124,6 @@
#define IMX335_PIXEL_ARRAY_WIDTH 2592U
#define IMX335_PIXEL_ARRAY_HEIGHT 1944U
-/**
- * struct imx335_reg - imx335 sensor register
- * @address: Register address
- * @val: Register value
- */
-struct imx335_reg {
- u16 address;
- u8 val;
-};
-
/**
* struct imx335_reg_list - imx335 sensor register list
* @num_of_regs: Number of registers in the list
@@ -102,7 +131,7 @@ struct imx335_reg {
*/
struct imx335_reg_list {
u32 num_of_regs;
- const struct imx335_reg *regs;
+ const struct cci_reg_sequence *regs;
};
static const char * const imx335_supply_name[] = {
@@ -165,6 +194,7 @@ struct imx335 {
struct media_pad pad;
struct gpio_desc *reset_gpio;
struct regulator_bulk_data supplies[ARRAY_SIZE(imx335_supply_name)];
+ struct regmap *cci;
struct clk *inclk;
struct v4l2_ctrl_handler ctrl_handler;
@@ -217,140 +247,135 @@ static const int imx335_tpg_val[] = {
};
/* Sensor mode registers */
-static const struct imx335_reg mode_2592x1940_regs[] = {
- {0x3000, 0x01},
- {0x3002, 0x00},
- {0x3018, 0x04},
- {0x302c, 0x3c},
- {0x302e, 0x20},
- {0x3056, 0x94},
- {0x3074, 0xc8},
- {0x3076, 0x28},
- {0x304c, 0x00},
- {0x31a1, 0x00},
- {0x3288, 0x21},
- {0x328a, 0x02},
- {0x3414, 0x05},
- {0x3416, 0x18},
- {0x3648, 0x01},
- {0x364a, 0x04},
- {0x364c, 0x04},
- {0x3678, 0x01},
- {0x367c, 0x31},
- {0x367e, 0x31},
- {0x3706, 0x10},
- {0x3708, 0x03},
- {0x3714, 0x02},
- {0x3715, 0x02},
- {0x3716, 0x01},
- {0x3717, 0x03},
- {0x371c, 0x3d},
- {0x371d, 0x3f},
- {0x372c, 0x00},
- {0x372d, 0x00},
- {0x372e, 0x46},
- {0x372f, 0x00},
- {0x3730, 0x89},
- {0x3731, 0x00},
- {0x3732, 0x08},
- {0x3733, 0x01},
- {0x3734, 0xfe},
- {0x3735, 0x05},
- {0x3740, 0x02},
- {0x375d, 0x00},
- {0x375e, 0x00},
- {0x375f, 0x11},
- {0x3760, 0x01},
- {0x3768, 0x1b},
- {0x3769, 0x1b},
- {0x376a, 0x1b},
- {0x376b, 0x1b},
- {0x376c, 0x1a},
- {0x376d, 0x17},
- {0x376e, 0x0f},
- {0x3776, 0x00},
- {0x3777, 0x00},
- {0x3778, 0x46},
- {0x3779, 0x00},
- {0x377a, 0x89},
- {0x377b, 0x00},
- {0x377c, 0x08},
- {0x377d, 0x01},
- {0x377e, 0x23},
- {0x377f, 0x02},
- {0x3780, 0xd9},
- {0x3781, 0x03},
- {0x3782, 0xf5},
- {0x3783, 0x06},
- {0x3784, 0xa5},
- {0x3788, 0x0f},
- {0x378a, 0xd9},
- {0x378b, 0x03},
- {0x378c, 0xeb},
- {0x378d, 0x05},
- {0x378e, 0x87},
- {0x378f, 0x06},
- {0x3790, 0xf5},
- {0x3792, 0x43},
- {0x3794, 0x7a},
- {0x3796, 0xa1},
- {0x37b0, 0x36},
- {0x3a00, 0x00},
+static const struct cci_reg_sequence mode_2592x1940_regs[] = {
+ {IMX335_REG_MODE_SELECT, 0x01},
+ {IMX335_REG_MASTER_MODE, 0x00},
+ {IMX335_REG_WINMODE, 0x04},
+ {IMX335_REG_HTRIMMING_START, 0x0180},
+ {IMX335_REG_HNUM, 0x0a20},
+ {IMX335_REG_Y_OUT_SIZE, 0x0794},
+ {IMX335_REG_AREA3_ST_ADR_1, 0x00b0},
+ {IMX335_REG_AREA3_WIDTH_1, 0x0f58},
+ {IMX335_REG_OPB_SIZE_V, 0x00},
+ {IMX335_REG_XVS_XHS_DRV, 0x00},
+ {CCI_REG8(0x3288), 0x21}, /* undocumented */
+ {CCI_REG8(0x328a), 0x02}, /* undocumented */
+ {CCI_REG8(0x3414), 0x05}, /* undocumented */
+ {CCI_REG8(0x3416), 0x18}, /* undocumented */
+ {CCI_REG8(0x3648), 0x01}, /* undocumented */
+ {CCI_REG8(0x364a), 0x04}, /* undocumented */
+ {CCI_REG8(0x364c), 0x04}, /* undocumented */
+ {CCI_REG8(0x3678), 0x01}, /* undocumented */
+ {CCI_REG8(0x367c), 0x31}, /* undocumented */
+ {CCI_REG8(0x367e), 0x31}, /* undocumented */
+ {CCI_REG8(0x3706), 0x10}, /* undocumented */
+ {CCI_REG8(0x3708), 0x03}, /* undocumented */
+ {CCI_REG8(0x3714), 0x02}, /* undocumented */
+ {CCI_REG8(0x3715), 0x02}, /* undocumented */
+ {CCI_REG8(0x3716), 0x01}, /* undocumented */
+ {CCI_REG8(0x3717), 0x03}, /* undocumented */
+ {CCI_REG8(0x371c), 0x3d}, /* undocumented */
+ {CCI_REG8(0x371d), 0x3f}, /* undocumented */
+ {CCI_REG8(0x372c), 0x00}, /* undocumented */
+ {CCI_REG8(0x372d), 0x00}, /* undocumented */
+ {CCI_REG8(0x372e), 0x46}, /* undocumented */
+ {CCI_REG8(0x372f), 0x00}, /* undocumented */
+ {CCI_REG8(0x3730), 0x89}, /* undocumented */
+ {CCI_REG8(0x3731), 0x00}, /* undocumented */
+ {CCI_REG8(0x3732), 0x08}, /* undocumented */
+ {CCI_REG8(0x3733), 0x01}, /* undocumented */
+ {CCI_REG8(0x3734), 0xfe}, /* undocumented */
+ {CCI_REG8(0x3735), 0x05}, /* undocumented */
+ {CCI_REG8(0x3740), 0x02}, /* undocumented */
+ {CCI_REG8(0x375d), 0x00}, /* undocumented */
+ {CCI_REG8(0x375e), 0x00}, /* undocumented */
+ {CCI_REG8(0x375f), 0x11}, /* undocumented */
+ {CCI_REG8(0x3760), 0x01}, /* undocumented */
+ {CCI_REG8(0x3768), 0x1b}, /* undocumented */
+ {CCI_REG8(0x3769), 0x1b}, /* undocumented */
+ {CCI_REG8(0x376a), 0x1b}, /* undocumented */
+ {CCI_REG8(0x376b), 0x1b}, /* undocumented */
+ {CCI_REG8(0x376c), 0x1a}, /* undocumented */
+ {CCI_REG8(0x376d), 0x17}, /* undocumented */
+ {CCI_REG8(0x376e), 0x0f}, /* undocumented */
+ {CCI_REG8(0x3776), 0x00}, /* undocumented */
+ {CCI_REG8(0x3777), 0x00}, /* undocumented */
+ {CCI_REG8(0x3778), 0x46}, /* undocumented */
+ {CCI_REG8(0x3779), 0x00}, /* undocumented */
+ {CCI_REG8(0x377a), 0x89}, /* undocumented */
+ {CCI_REG8(0x377b), 0x00}, /* undocumented */
+ {CCI_REG8(0x377c), 0x08}, /* undocumented */
+ {CCI_REG8(0x377d), 0x01}, /* undocumented */
+ {CCI_REG8(0x377e), 0x23}, /* undocumented */
+ {CCI_REG8(0x377f), 0x02}, /* undocumented */
+ {CCI_REG8(0x3780), 0xd9}, /* undocumented */
+ {CCI_REG8(0x3781), 0x03}, /* undocumented */
+ {CCI_REG8(0x3782), 0xf5}, /* undocumented */
+ {CCI_REG8(0x3783), 0x06}, /* undocumented */
+ {CCI_REG8(0x3784), 0xa5}, /* undocumented */
+ {CCI_REG8(0x3788), 0x0f}, /* undocumented */
+ {CCI_REG8(0x378a), 0xd9}, /* undocumented */
+ {CCI_REG8(0x378b), 0x03}, /* undocumented */
+ {CCI_REG8(0x378c), 0xeb}, /* undocumented */
+ {CCI_REG8(0x378d), 0x05}, /* undocumented */
+ {CCI_REG8(0x378e), 0x87}, /* undocumented */
+ {CCI_REG8(0x378f), 0x06}, /* undocumented */
+ {CCI_REG8(0x3790), 0xf5}, /* undocumented */
+ {CCI_REG8(0x3792), 0x43}, /* undocumented */
+ {CCI_REG8(0x3794), 0x7a}, /* undocumented */
+ {CCI_REG8(0x3796), 0xa1}, /* undocumented */
+ {CCI_REG8(0x37b0), 0x36}, /* undocumented */
+ {CCI_REG8(0x3a00), 0x00}, /* undocumented */
};
-static const struct imx335_reg raw10_framefmt_regs[] = {
- {0x3050, 0x00},
- {0x319d, 0x00},
- {0x341c, 0xff},
- {0x341d, 0x01},
+static const struct cci_reg_sequence raw10_framefmt_regs[] = {
+ {IMX335_REG_ADBIT, 0x00},
+ {IMX335_REG_MDBIT, 0x00},
+ {IMX335_REG_ADBIT1, 0x1ff},
};
-static const struct imx335_reg raw12_framefmt_regs[] = {
- {0x3050, 0x01},
- {0x319d, 0x01},
- {0x341c, 0x47},
- {0x341d, 0x00},
+static const struct cci_reg_sequence raw12_framefmt_regs[] = {
+ {IMX335_REG_ADBIT, 0x01},
+ {IMX335_REG_MDBIT, 0x01},
+ {IMX335_REG_ADBIT1, 0x47},
};
-static const struct imx335_reg mipi_data_rate_1188Mbps[] = {
- {0x300c, 0x3b},
- {0x300d, 0x2a},
- {0x314c, 0xc6},
- {0x314d, 0x00},
- {0x315a, 0x02},
- {0x3168, 0xa0},
- {0x316a, 0x7e},
- {0x319e, 0x01},
- {0x3a18, 0x8f},
- {0x3a1a, 0x4f},
- {0x3a1c, 0x47},
- {0x3a1e, 0x37},
- {0x3a1f, 0x01},
- {0x3a20, 0x4f},
- {0x3a22, 0x87},
- {0x3a24, 0x4f},
- {0x3a26, 0x7f},
- {0x3a28, 0x3f},
+static const struct cci_reg_sequence mipi_data_rate_1188Mbps[] = {
+ {IMX335_REG_BCWAIT_TIME, 0x3b},
+ {IMX335_REG_CPWAIT_TIME, 0x2a},
+ {IMX335_REG_INCLKSEL1, 0x00c6},
+ {IMX335_REG_INCLKSEL2, 0x02},
+ {IMX335_REG_INCLKSEL3, 0xa0},
+ {IMX335_REG_INCLKSEL4, 0x7e},
+ {IMX335_REG_SYSMODE, 0x01},
+ {IMX335_REG_TCLKPOST, 0x8f},
+ {IMX335_REG_TCLKPREPARE, 0x4f},
+ {IMX335_REG_TCLK_TRAIL, 0x47},
+ {IMX335_REG_TCLK_ZERO, 0x0137},
+ {IMX335_REG_THS_PREPARE, 0x4f},
+ {IMX335_REG_THS_ZERO, 0x87},
+ {IMX335_REG_THS_TRAIL, 0x4f},
+ {IMX335_REG_THS_EXIT, 0x7f},
+ {IMX335_REG_TPLX, 0x3f},
};
-static const struct imx335_reg mipi_data_rate_891Mbps[] = {
- {0x300c, 0x3b},
- {0x300d, 0x2a},
- {0x314c, 0x29},
- {0x314d, 0x01},
- {0x315a, 0x06},
- {0x3168, 0xa0},
- {0x316a, 0x7e},
- {0x319e, 0x02},
- {0x3a18, 0x7f},
- {0x3a1a, 0x37},
- {0x3a1c, 0x37},
- {0x3a1e, 0xf7},
- {0x3a20, 0x3f},
- {0x3a22, 0x6f},
- {0x3a24, 0x3f},
- {0x3a26, 0x5f},
- {0x3a28, 0x2f},
+static const struct cci_reg_sequence mipi_data_rate_891Mbps[] = {
+ {IMX335_REG_BCWAIT_TIME, 0x3b},
+ {IMX335_REG_CPWAIT_TIME, 0x2a},
+ {IMX335_REG_INCLKSEL1, 0x0129},
+ {IMX335_REG_INCLKSEL2, 0x06},
+ {IMX335_REG_INCLKSEL3, 0xa0},
+ {IMX335_REG_INCLKSEL4, 0x7e},
+ {IMX335_REG_SYSMODE, 0x02},
+ {IMX335_REG_TCLKPOST, 0x7f},
+ {IMX335_REG_TCLKPREPARE, 0x37},
+ {IMX335_REG_TCLK_TRAIL, 0x37},
+ {IMX335_REG_TCLK_ZERO, 0xf7},
+ {IMX335_REG_THS_PREPARE, 0x3f},
+ {IMX335_REG_THS_ZERO, 0x6f},
+ {IMX335_REG_THS_TRAIL, 0x3f},
+ {IMX335_REG_THS_EXIT, 0x5f},
+ {IMX335_REG_TPLX, 0x2f},
};
static const s64 link_freq[] = {
@@ -402,101 +427,6 @@ static inline struct imx335 *to_imx335(struct v4l2_subdev *subdev)
return container_of(subdev, struct imx335, sd);
}
-/**
- * imx335_read_reg() - Read registers.
- * @imx335: pointer to imx335 device
- * @reg: register address
- * @len: length of bytes to read. Max supported bytes is 4
- * @val: pointer to register value to be filled.
- *
- * Big endian register addresses with little endian values.
- *
- * Return: 0 if successful, error code otherwise.
- */
-static int imx335_read_reg(struct imx335 *imx335, u16 reg, u32 len, u32 *val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&imx335->sd);
- struct i2c_msg msgs[2] = {0};
- u8 addr_buf[2] = {0};
- u8 data_buf[4] = {0};
- int ret;
-
- if (WARN_ON(len > 4))
- return -EINVAL;
-
- put_unaligned_be16(reg, addr_buf);
-
- /* Write register address */
- msgs[0].addr = client->addr;
- msgs[0].flags = 0;
- msgs[0].len = ARRAY_SIZE(addr_buf);
- msgs[0].buf = addr_buf;
-
- /* Read data from register */
- msgs[1].addr = client->addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = len;
- msgs[1].buf = data_buf;
-
- ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
- if (ret != ARRAY_SIZE(msgs))
- return -EIO;
-
- *val = get_unaligned_le32(data_buf);
-
- return 0;
-}
-
-/**
- * imx335_write_reg() - Write register
- * @imx335: pointer to imx335 device
- * @reg: register address
- * @len: length of bytes. Max supported bytes is 4
- * @val: register value
- *
- * Big endian register addresses with little endian values.
- *
- * Return: 0 if successful, error code otherwise.
- */
-static int imx335_write_reg(struct imx335 *imx335, u16 reg, u32 len, u32 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&imx335->sd);
- u8 buf[6] = {0};
-
- if (WARN_ON(len > 4))
- return -EINVAL;
-
- put_unaligned_be16(reg, buf);
- put_unaligned_le32(val, buf + 2);
- if (i2c_master_send(client, buf, len + 2) != len + 2)
- return -EIO;
-
- return 0;
-}
-
-/**
- * imx335_write_regs() - Write a list of registers
- * @imx335: pointer to imx335 device
- * @regs: list of registers to be written
- * @len: length of registers array
- *
- * Return: 0 if successful. error code otherwise.
- */
-static int imx335_write_regs(struct imx335 *imx335,
- const struct imx335_reg *regs, u32 len)
-{
- unsigned int i;
- int ret;
-
- for (i = 0; i < len; i++) {
- ret = imx335_write_reg(imx335, regs[i].address, 1, regs[i].val);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
/**
* imx335_update_controls() - Update control ranges based on streaming mode
* @imx335: pointer to imx335 device
@@ -533,7 +463,8 @@ static int imx335_update_controls(struct imx335 *imx335,
static int imx335_update_exp_gain(struct imx335 *imx335, u32 exposure, u32 gain)
{
u32 lpfr, shutter;
- int ret;
+ int ret_hold;
+ int ret = 0;
lpfr = imx335->vblank + imx335->cur_mode->height;
shutter = lpfr - exposure;
@@ -541,64 +472,55 @@ static int imx335_update_exp_gain(struct imx335 *imx335, u32 exposure, u32 gain)
dev_dbg(imx335->dev, "Set exp %u, analog gain %u, shutter %u, lpfr %u\n",
exposure, gain, shutter, lpfr);
- ret = imx335_write_reg(imx335, IMX335_REG_HOLD, 1, 1);
- if (ret)
- return ret;
-
- ret = imx335_write_reg(imx335, IMX335_REG_LPFR, 3, lpfr);
- if (ret)
- goto error_release_group_hold;
-
- ret = imx335_write_reg(imx335, IMX335_REG_SHUTTER, 3, shutter);
- if (ret)
- goto error_release_group_hold;
-
- ret = imx335_write_reg(imx335, IMX335_REG_AGAIN, 2, gain);
-
-error_release_group_hold:
- imx335_write_reg(imx335, IMX335_REG_HOLD, 1, 0);
+ cci_write(imx335->cci, IMX335_REG_HOLD, 1, &ret);
+ cci_write(imx335->cci, IMX335_REG_VMAX, lpfr, &ret);
+ cci_write(imx335->cci, IMX335_REG_SHUTTER, shutter, &ret);
+ cci_write(imx335->cci, IMX335_REG_AGAIN, gain, &ret);
+ /*
+ * Unconditionally attempt to release the hold, but track the
+ * error if the unhold itself fails.
+ */
+ ret_hold = cci_write(imx335->cci, IMX335_REG_HOLD, 0, NULL);
+ if (ret_hold)
+ ret = ret_hold;
return ret;
}
static int imx335_update_test_pattern(struct imx335 *imx335, u32 pattern_index)
{
- int ret;
+ int ret = 0;
if (pattern_index >= ARRAY_SIZE(imx335_tpg_val))
return -EINVAL;
if (pattern_index) {
- const struct imx335_reg tpg_enable_regs[] = {
- { 0x3148, 0x10 },
- { 0x3280, 0x00 },
- { 0x329c, 0x01 },
- { 0x32a0, 0x11 },
- { 0x3302, 0x00 },
- { 0x3303, 0x00 },
- { 0x336c, 0x00 },
+ const struct cci_reg_sequence tpg_enable_regs[] = {
+ {IMX335_REG_TPG_TESTCLKEN, 0x10},
+ {IMX335_REG_TPG_DIG_CLP_MODE, 0x00},
+ {IMX335_REG_TPG_EN_DUOUT, 0x01},
+ {IMX335_REG_TPG_COLORWIDTH, 0x11},
+ {IMX335_REG_TPG_BLKLEVEL, 0x00},
+ {IMX335_REG_TPG_WRJ_OPEN, 0x00},
};
- ret = imx335_write_reg(imx335, IMX335_REG_TPG, 1,
- imx335_tpg_val[pattern_index]);
- if (ret)
- return ret;
+ cci_write(imx335->cci, IMX335_REG_TPG,
+ imx335_tpg_val[pattern_index], &ret);
- ret = imx335_write_regs(imx335, tpg_enable_regs,
- ARRAY_SIZE(tpg_enable_regs));
+ cci_multi_reg_write(imx335->cci, tpg_enable_regs,
+ ARRAY_SIZE(tpg_enable_regs), &ret);
} else {
- const struct imx335_reg tpg_disable_regs[] = {
- { 0x3148, 0x00 },
- { 0x3280, 0x01 },
- { 0x329c, 0x00 },
- { 0x32a0, 0x10 },
- { 0x3302, 0x32 },
- { 0x3303, 0x00 },
- { 0x336c, 0x01 },
+ const struct cci_reg_sequence tpg_disable_regs[] = {
+ {IMX335_REG_TPG_TESTCLKEN, 0x00},
+ {IMX335_REG_TPG_DIG_CLP_MODE, 0x01},
+ {IMX335_REG_TPG_EN_DUOUT, 0x00},
+ {IMX335_REG_TPG_COLORWIDTH, 0x10},
+ {IMX335_REG_TPG_BLKLEVEL, 0x32},
+ {IMX335_REG_TPG_WRJ_OPEN, 0x01},
};
- ret = imx335_write_regs(imx335, tpg_disable_regs,
- ARRAY_SIZE(tpg_disable_regs));
+ cci_multi_reg_write(imx335->cci, tpg_disable_regs,
+ ARRAY_SIZE(tpg_disable_regs), &ret);
}
return ret;
@@ -897,12 +819,14 @@ static int imx335_set_framefmt(struct imx335 *imx335)
{
switch (imx335->cur_mbus_code) {
case MEDIA_BUS_FMT_SRGGB10_1X10:
- return imx335_write_regs(imx335, raw10_framefmt_regs,
- ARRAY_SIZE(raw10_framefmt_regs));
+ return cci_multi_reg_write(imx335->cci, raw10_framefmt_regs,
+ ARRAY_SIZE(raw10_framefmt_regs),
+ NULL);
case MEDIA_BUS_FMT_SRGGB12_1X12:
- return imx335_write_regs(imx335, raw12_framefmt_regs,
- ARRAY_SIZE(raw12_framefmt_regs));
+ return cci_multi_reg_write(imx335->cci, raw12_framefmt_regs,
+ ARRAY_SIZE(raw12_framefmt_regs),
+ NULL);
}
return -EINVAL;
@@ -921,7 +845,8 @@ static int imx335_start_streaming(struct imx335 *imx335)
/* Setup PLL */
reg_list = &link_freq_reglist[__ffs(imx335->link_freq_bitmap)];
- ret = imx335_write_regs(imx335, reg_list->regs, reg_list->num_of_regs);
+ ret = cci_multi_reg_write(imx335->cci, reg_list->regs,
+ reg_list->num_of_regs, NULL);
if (ret) {
dev_err(imx335->dev, "%s failed to set plls\n", __func__);
return ret;
@@ -929,8 +854,8 @@ static int imx335_start_streaming(struct imx335 *imx335)
/* Write sensor mode registers */
reg_list = &imx335->cur_mode->reg_list;
- ret = imx335_write_regs(imx335, reg_list->regs,
- reg_list->num_of_regs);
+ ret = cci_multi_reg_write(imx335->cci, reg_list->regs,
+ reg_list->num_of_regs, NULL);
if (ret) {
dev_err(imx335->dev, "fail to write initial registers\n");
return ret;
@@ -944,7 +869,8 @@ static int imx335_start_streaming(struct imx335 *imx335)
}
/* Configure lanes */
- ret = imx335_write_reg(imx335, IMX335_LANEMODE, 1, imx335->lane_mode);
+ ret = cci_write(imx335->cci, IMX335_REG_LANEMODE,
+ imx335->lane_mode, NULL);
if (ret)
return ret;
@@ -956,8 +882,8 @@ static int imx335_start_streaming(struct imx335 *imx335)
}
/* Start streaming */
- ret = imx335_write_reg(imx335, IMX335_REG_MODE_SELECT,
- 1, IMX335_MODE_STREAMING);
+ ret = cci_write(imx335->cci, IMX335_REG_MODE_SELECT,
+ IMX335_MODE_STREAMING, NULL);
if (ret) {
dev_err(imx335->dev, "fail to start streaming\n");
return ret;
@@ -977,8 +903,8 @@ static int imx335_start_streaming(struct imx335 *imx335)
*/
static int imx335_stop_streaming(struct imx335 *imx335)
{
- return imx335_write_reg(imx335, IMX335_REG_MODE_SELECT,
- 1, IMX335_MODE_STANDBY);
+ return cci_write(imx335->cci, IMX335_REG_MODE_SELECT,
+ IMX335_MODE_STANDBY, NULL);
}
/**
@@ -1029,14 +955,14 @@ static int imx335_set_stream(struct v4l2_subdev *sd, int enable)
static int imx335_detect(struct imx335 *imx335)
{
int ret;
- u32 val;
+ u64 val;
- ret = imx335_read_reg(imx335, IMX335_REG_ID, 2, &val);
+ ret = cci_read(imx335->cci, IMX335_REG_ID, &val, NULL);
if (ret)
return ret;
if (val != IMX335_ID) {
- dev_err(imx335->dev, "chip id mismatch: %x!=%x\n",
+ dev_err(imx335->dev, "chip id mismatch: %x!=%llx\n",
IMX335_ID, val);
return -ENXIO;
}
@@ -1337,6 +1263,11 @@ static int imx335_probe(struct i2c_client *client)
return -ENOMEM;
imx335->dev = &client->dev;
+ imx335->cci = devm_cci_regmap_init_i2c(client, 16);
+ if (IS_ERR(imx335->cci)) {
+ dev_err(imx335->dev, "Unable to initialize I2C\n");
+ return -ENODEV;
+ }
/* Initialize subdev */
v4l2_i2c_subdev_init(&imx335->sd, client, &imx335_subdev_ops);
--
2.43.0
Consider integer values for registers that are related to various
sizes in the register map. This helps in improving the overall
readability.
No functional changes intended in this patch.
Signed-off-by: Umang Jain <[email protected]>
Reviewed-by: Tommaso Merciai <[email protected]>
---
drivers/media/i2c/imx335.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index ae4341644a84..7609dbc537b1 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -251,12 +251,12 @@ static const struct cci_reg_sequence mode_2592x1940_regs[] = {
{IMX335_REG_MODE_SELECT, 0x01},
{IMX335_REG_MASTER_MODE, 0x00},
{IMX335_REG_WINMODE, 0x04},
- {IMX335_REG_HTRIMMING_START, 0x0180},
- {IMX335_REG_HNUM, 0x0a20},
- {IMX335_REG_Y_OUT_SIZE, 0x0794},
- {IMX335_REG_AREA3_ST_ADR_1, 0x00b0},
- {IMX335_REG_AREA3_WIDTH_1, 0x0f58},
- {IMX335_REG_OPB_SIZE_V, 0x00},
+ {IMX335_REG_HTRIMMING_START, 384},
+ {IMX335_REG_HNUM, 2592},
+ {IMX335_REG_Y_OUT_SIZE, 1940},
+ {IMX335_REG_AREA3_ST_ADR_1, 176},
+ {IMX335_REG_AREA3_WIDTH_1, 3928},
+ {IMX335_REG_OPB_SIZE_V, 0},
{IMX335_REG_XVS_XHS_DRV, 0x00},
{CCI_REG8(0x3288), 0x21}, /* undocumented */
{CCI_REG8(0x328a), 0x02}, /* undocumented */
--
2.43.0
The imx335 reports a recommended pixel area of - 2592x1944.
The driver supported mode however limits it to height=1940.
Fix the height discrepency by correctly the value of height
(with updates to vblank and mode registers).
Signed-off-by: Umang Jain <[email protected]>
---
drivers/media/i2c/imx335.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index 7609dbc537b1..10a09830dbd6 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -247,13 +247,13 @@ static const int imx335_tpg_val[] = {
};
/* Sensor mode registers */
-static const struct cci_reg_sequence mode_2592x1940_regs[] = {
+static const struct cci_reg_sequence mode_2592x1944_regs[] = {
{IMX335_REG_MODE_SELECT, 0x01},
{IMX335_REG_MASTER_MODE, 0x00},
- {IMX335_REG_WINMODE, 0x04},
- {IMX335_REG_HTRIMMING_START, 384},
+ {IMX335_REG_WINMODE, 0x00},
+ {IMX335_REG_HTRIMMING_START, 48},
{IMX335_REG_HNUM, 2592},
- {IMX335_REG_Y_OUT_SIZE, 1940},
+ {IMX335_REG_Y_OUT_SIZE, 1944},
{IMX335_REG_AREA3_ST_ADR_1, 176},
{IMX335_REG_AREA3_WIDTH_1, 3928},
{IMX335_REG_OPB_SIZE_V, 0},
@@ -404,15 +404,15 @@ static const u32 imx335_mbus_codes[] = {
/* Supported sensor mode configurations */
static const struct imx335_mode supported_mode = {
.width = 2592,
- .height = 1940,
+ .height = 1944,
.hblank = 342,
- .vblank = 2560,
- .vblank_min = 2560,
+ .vblank = 2556,
+ .vblank_min = 2556,
.vblank_max = 133060,
.pclk = 396000000,
.reg_list = {
- .num_of_regs = ARRAY_SIZE(mode_2592x1940_regs),
- .regs = mode_2592x1940_regs,
+ .num_of_regs = ARRAY_SIZE(mode_2592x1944_regs),
+ .regs = mode_2592x1944_regs,
},
};
--
2.43.0
The sensor gain (both analog and digital) are controlled by a
single gain value where:
- 0dB to 30dB correspond to analog gain
- 30.3dB to 72dB correspond to digital gain
(with 0.3dB step)
Hence, limit the analogue gain value to 100.
For digital gain, support can be added later if needed.
Signed-off-by: Umang Jain <[email protected]>
Reviewed-by: Kieran Bingham <[email protected]>
Reviewed-by: Tommaso Merciai <[email protected]>
---
drivers/media/i2c/imx335.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
index 10a09830dbd6..9eb8f70836fd 100644
--- a/drivers/media/i2c/imx335.c
+++ b/drivers/media/i2c/imx335.c
@@ -52,7 +52,7 @@
/* Analog gain control */
#define IMX335_REG_AGAIN CCI_REG8(0x30e8)
#define IMX335_AGAIN_MIN 0
-#define IMX335_AGAIN_MAX 240
+#define IMX335_AGAIN_MAX 100
#define IMX335_AGAIN_STEP 1
#define IMX335_AGAIN_DEFAULT 0
@@ -1175,6 +1175,14 @@ static int imx335_init_controls(struct imx335 *imx335)
IMX335_EXPOSURE_STEP,
IMX335_EXPOSURE_DEFAULT);
+ /*
+ * 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.
+ */
imx335->again_ctrl = v4l2_ctrl_new_std(ctrl_hdlr,
&imx335_ctrl_ops,
V4L2_CID_ANALOGUE_GAIN,
--
2.43.0
Hi Umang,
On Thu, Mar 21, 2024 at 04:42:35PM +0530, Umang Jain wrote:
> From: Kieran Bingham <[email protected]>
>
> Call the V4L2 fwnode device parser to handle controls that are
> standardised by the framework.
>
> Signed-off-by: Kieran Bingham <[email protected]>
> Signed-off-by: Umang Jain <[email protected]>
> ---
> drivers/media/i2c/imx335.c | 24 +++++++++++++++++++-----
> 1 file changed, 19 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/media/i2c/imx335.c b/drivers/media/i2c/imx335.c
> index c633ea1380e7..b8cf85984127 100644
> --- a/drivers/media/i2c/imx335.c
> +++ b/drivers/media/i2c/imx335.c
> @@ -1227,10 +1227,12 @@ static int imx335_init_controls(struct imx335 *imx335)
> {
> struct v4l2_ctrl_handler *ctrl_hdlr = &imx335->ctrl_handler;
> const struct imx335_mode *mode = imx335->cur_mode;
> + struct v4l2_fwnode_device_properties props;
> u32 lpfr;
> int ret;
>
> - ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
> + /* v4l2_fwnode_device_properties can add two more controls */
> + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 9);
> if (ret)
> return ret;
>
> @@ -1296,15 +1298,27 @@ static int imx335_init_controls(struct imx335 *imx335)
> imx335->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
>
> if (ctrl_hdlr->error) {
> - dev_err(imx335->dev, "control init failed: %d\n",
> - ctrl_hdlr->error);
> - v4l2_ctrl_handler_free(ctrl_hdlr);
> - return ctrl_hdlr->error;
> + ret = ctrl_hdlr->error;
> + dev_err(imx335->dev, "control init failed: %d\n", ret);
Don't know if we need this dev_err print here.
If I'm not wrong this is already printed into the imx335_probe:
ret = imx335_init_controls(imx335);
if (ret) {
dev_err(imx335->dev, "failed to init controls: %d\n", ret);
goto error_power_off;
}
Apart of that looks good to me. :)
Reviewed-by: Tommaso Merciai <[email protected]>
> + goto free_ctrl_hdlr;
> }
>
> + ret = v4l2_fwnode_device_parse(imx335->dev, &props);
> + if (ret)
> + goto free_ctrl_hdlr;
> +
> + ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx335_ctrl_ops,
> + &props);
> + if (ret)
> + goto free_ctrl_hdlr;
> +
> imx335->sd.ctrl_handler = ctrl_hdlr;
>
> return 0;
> +
> +free_ctrl_hdlr:
> + v4l2_ctrl_handler_free(ctrl_hdlr);
> + return ret;
> }
>
> /**
> --
> 2.43.0
Thanks & Regards,
Tommaso
>
>