diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0469-media-i2c-imx477-Allow-control-of-on-sensor-DPC.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0469-media-i2c-imx477-Allow-control-of-on-sensor-DPC.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0469-media-i2c-imx477-Allow-control-of-on-sensor-DPC.patch b/target/linux/bcm27xx/patches-5.15/950-0469-media-i2c-imx477-Allow-control-of-on-sensor-DPC.patch new file mode 100644 index 0000000000..c6c4cbc462 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0469-media-i2c-imx477-Allow-control-of-on-sensor-DPC.patch @@ -0,0 +1,40 @@ +From 2b6edd13bb5152c659466987846b481df8b37393 Mon Sep 17 00:00:00 2001 +From: David Plowman <david.plowman@raspberrypi.com> +Date: Wed, 8 Sep 2021 14:15:17 +0100 +Subject: [PATCH] media: i2c: imx477: Allow control of on-sensor DPC + +A module parameter "dpc_enable" is added to allow the control of the +sensor's on-board DPC (Defective Pixel Correction) function. + +This is a global setting to be configured before using the sensor; +there is no intention that this would ever be changed on-the-fly. + +Signed-off-by: David Plowman <david.plowman@raspberrypi.com> +--- + drivers/media/i2c/imx477.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +--- a/drivers/media/i2c/imx477.c ++++ b/drivers/media/i2c/imx477.c +@@ -21,6 +21,10 @@ + #include <media/v4l2-fwnode.h> + #include <media/v4l2-mediabus.h> + ++static int dpc_enable = 1; ++module_param(dpc_enable, int, 0644); ++MODULE_PARM_DESC(dpc_enable, "Enable on-sensor DPC"); ++ + #define IMX477_REG_VALUE_08BIT 1 + #define IMX477_REG_VALUE_16BIT 2 + +@@ -1713,6 +1717,10 @@ static int imx477_start_streaming(struct + return ret; + } + ++ /* Set on-sensor DPC. */ ++ imx477_write_reg(imx477, 0x0b05, IMX477_REG_VALUE_08BIT, !!dpc_enable); ++ imx477_write_reg(imx477, 0x0b06, IMX477_REG_VALUE_08BIT, !!dpc_enable); ++ + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(imx477->sd.ctrl_handler); + if (ret) |