diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch b/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch new file mode 100644 index 0000000000..01d22c2ef2 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0821-media-i2c-imx258-Allow-configuration-of-clock-lane-b.patch @@ -0,0 +1,60 @@ +From d3cbabced959831fb1f04565dd424ece48f1b831 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Thu, 31 Mar 2022 15:33:59 +0100 +Subject: [PATCH] media: i2c: imx258: Allow configuration of clock lane + behaviour + +The sensor supports the clock lane either remaining in HS mode +during frame blanking, or dropping to LP11. + +Add configuration of the mode via V4L2_MBUS_CSI2_CONTINUOUS_CLOCK. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/media/i2c/imx258.c | 14 ++++++++++++++ + 1 file changed, 14 insertions(+) + +--- a/drivers/media/i2c/imx258.c ++++ b/drivers/media/i2c/imx258.c +@@ -72,6 +72,8 @@ + /* Test Pattern Control */ + #define IMX258_REG_TEST_PATTERN 0x0600 + ++#define IMX258_CLK_BLANK_STOP 0x4040 ++ + /* Orientation */ + #define REG_MIRROR_FLIP_CONTROL 0x0101 + #define REG_CONFIG_MIRROR_HFLIP 0x01 +@@ -848,6 +850,7 @@ struct imx258 { + const struct imx258_link_freq_config *link_freq_configs; + const s64 *link_freq_menu_items; + unsigned int nlanes; ++ unsigned int csi2_flags; + + /* + * Mutex for serialized access: +@@ -1300,6 +1303,15 @@ static int imx258_start_streaming(struct + return ret; + } + ++ ret = imx258_write_reg(imx258, IMX258_CLK_BLANK_STOP, ++ IMX258_REG_VALUE_08BIT, ++ imx258->csi2_flags & V4L2_MBUS_CSI2_CONTINUOUS_CLOCK ? ++ 0 : 1); ++ if (ret) { ++ dev_err(&client->dev, "%s failed to set clock lane mode\n", __func__); ++ return ret; ++ } ++ + /* Apply default values of current mode */ + reg_list = &imx258->cur_mode->reg_list; + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); +@@ -1703,6 +1715,8 @@ static int imx258_probe(struct i2c_clien + goto error_endpoint_poweron; + } + ++ imx258->csi2_flags = ep.bus.mipi_csi2.flags; ++ + /* Initialize subdev */ + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); + |