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authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-18 18:04:33 +0100
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-02-19 07:17:21 +0100
commit62b7f5931c54e96fca56dd8761b0e466d355c881 (patch)
tree1258b392752379833a075df006c2f6d7ac4be51d /target/linux/bcm27xx/patches-5.4/950-0835-media-i2c-imx290-Switch-set_hmax-to-use-imx290_write.patch
parent76d1168d0d4b9d76e2ad78c0fc6b255561deb284 (diff)
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bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> (cherry-picked from commit f07e572f64)
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.patch43
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)