diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0554-media-i2c-imx477-Add-vsync-trigger_mode-parameter.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0554-media-i2c-imx477-Add-vsync-trigger_mode-parameter.patch | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0554-media-i2c-imx477-Add-vsync-trigger_mode-parameter.patch b/target/linux/bcm27xx/patches-5.15/950-0554-media-i2c-imx477-Add-vsync-trigger_mode-parameter.patch new file mode 100644 index 0000000000..52835f79ea --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0554-media-i2c-imx477-Add-vsync-trigger_mode-parameter.patch @@ -0,0 +1,64 @@ +From 9ed9132402b92d1957927c8719f37d8b95bb00ff Mon Sep 17 00:00:00 2001 +From: neocortex-vision <oss@neocortexvision.com> +Date: Thu, 28 Oct 2021 17:37:36 +0100 +Subject: [PATCH] media: i2c: imx477: Add vsync trigger_mode parameter + +trigger_mode == 0 (default) => no effect / no registers written +trigger_mode == 1 => source +trigger_mode == 2 => sink + +This can be set e.g. in /boot/cmdline.txt as imx477.trigger_mode=N + +Signed-off-by: Jonas Jacob <jonas.jacob@neocortexvision.com> +--- + drivers/media/i2c/imx477.c | 25 +++++++++++++++++++++++++ + 1 file changed, 25 insertions(+) + +--- a/drivers/media/i2c/imx477.c ++++ b/drivers/media/i2c/imx477.c +@@ -25,6 +25,10 @@ static int dpc_enable = 1; + module_param(dpc_enable, int, 0644); + MODULE_PARM_DESC(dpc_enable, "Enable on-sensor DPC"); + ++static int trigger_mode; ++module_param(trigger_mode, int, 0644); ++MODULE_PARM_DESC(trigger_mode, "Set vsync trigger mode: 1=source, 2=sink"); ++ + #define IMX477_REG_VALUE_08BIT 1 + #define IMX477_REG_VALUE_16BIT 2 + +@@ -98,6 +102,12 @@ MODULE_PARM_DESC(dpc_enable, "Enable on- + #define IMX477_TEST_PATTERN_B_DEFAULT 0 + #define IMX477_TEST_PATTERN_GB_DEFAULT 0 + ++/* Trigger mode */ ++#define IMX477_REG_MC_MODE 0x3f0b ++#define IMX477_REG_MS_SEL 0x3041 ++#define IMX477_REG_XVS_IO_CTRL 0x3040 ++#define IMX477_REG_EXTOUT_EN 0x4b81 ++ + /* Embedded metadata stream structure */ + #define IMX477_EMBEDDED_LINE_WIDTH 16384 + #define IMX477_NUM_EMBEDDED_LINES 1 +@@ -1721,6 +1731,21 @@ static int imx477_start_streaming(struct + imx477_write_reg(imx477, 0x0b05, IMX477_REG_VALUE_08BIT, !!dpc_enable); + imx477_write_reg(imx477, 0x0b06, IMX477_REG_VALUE_08BIT, !!dpc_enable); + ++ /* Set vsync trigger mode */ ++ if (trigger_mode != 0) { ++ /* trigger_mode == 1 for source, 2 for sink */ ++ const u32 val = (trigger_mode == 1) ? 1 : 0; ++ ++ imx477_write_reg(imx477, IMX477_REG_MC_MODE, ++ IMX477_REG_VALUE_08BIT, 1); ++ imx477_write_reg(imx477, IMX477_REG_MS_SEL, ++ IMX477_REG_VALUE_08BIT, val); ++ imx477_write_reg(imx477, IMX477_REG_XVS_IO_CTRL, ++ IMX477_REG_VALUE_08BIT, val); ++ imx477_write_reg(imx477, IMX477_REG_EXTOUT_EN, ++ IMX477_REG_VALUE_08BIT, val); ++ } ++ + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(imx477->sd.ctrl_handler); + if (ret) |