diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch b/target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch new file mode 100644 index 0000000000..7819e70ea3 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch @@ -0,0 +1,43 @@ +From 970208edb92b04eaa329c666e2e91717984c28b6 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Fri, 26 Jun 2020 18:11:49 +0100 +Subject: [PATCH] media: i2c: imx290: Switch set_hmax to use + imx290_write_buffered_reg + +imx290_set_hmax was using two independent writes to set up hmax, +when all other multi-register writes were using imx290_write_buffered_reg +which claims the group hold first. + +Switch imx290_set_hmax to using imx290_write_buffered_reg too. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/media/i2c/imx290.c | 15 ++++----------- + 1 file changed, 4 insertions(+), 11 deletions(-) + +--- a/drivers/media/i2c/imx290.c ++++ b/drivers/media/i2c/imx290.c +@@ -568,19 +568,12 @@ static int imx290_set_hmax(struct imx290 + u32 hmax = val + imx290->current_mode->width; + int ret; + +- ret = imx290_write_reg(imx290, IMX290_HMAX_LOW, (hmax & 0xff)); +- if (ret) { ++ ret = imx290_write_buffered_reg(imx290, IMX290_HMAX_LOW, 2, ++ hmax); ++ if (ret) + dev_err(imx290->dev, "Error setting HMAX register\n"); +- return ret; +- } + +- ret = imx290_write_reg(imx290, IMX290_HMAX_HIGH, ((hmax >> 8) & 0xff)); +- if (ret) { +- dev_err(imx290->dev, "Error setting HMAX register\n"); +- return ret; +- } +- +- return 0; ++ return ret; + } + + static int imx290_set_vmax(struct imx290 *imx290, u32 val) |