diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0825-media-i2c-imx290-Move-the-settle-time-delay-out-of-l.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0825-media-i2c-imx290-Move-the-settle-time-delay-out-of-l.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0825-media-i2c-imx290-Move-the-settle-time-delay-out-of-l.patch b/target/linux/bcm27xx/patches-5.4/950-0825-media-i2c-imx290-Move-the-settle-time-delay-out-of-l.patch new file mode 100644 index 0000000000..a46c0c98ea --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0825-media-i2c-imx290-Move-the-settle-time-delay-out-of-l.patch @@ -0,0 +1,37 @@ +From d2155366275ce70438d12169a59959e90b637f9c Mon Sep 17 00:00:00 2001 +From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> +Date: Fri, 12 Jun 2020 15:53:54 +0200 +Subject: [PATCH] media: i2c: imx290: Move the settle time delay out + of loop + +Commit 6544af9b04b4484867c234ba0be1b5008e4a14ee upstream. + +The 10ms settle time is needed only at the end of all consecutive +register writes. So move the delay to outside of the for loop of +imx290_set_register_array(). + +Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> +Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org> +Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> +Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> +--- + drivers/media/i2c/imx290.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/drivers/media/i2c/imx290.c ++++ b/drivers/media/i2c/imx290.c +@@ -404,11 +404,11 @@ static int imx290_set_register_array(str + ret = imx290_write_reg(imx290, settings->reg, settings->val); + if (ret < 0) + return ret; +- +- /* Settle time is 10ms for all registers */ +- msleep(10); + } + ++ /* Provide 10ms settle time */ ++ msleep(10); ++ + return 0; + } + |