diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch b/target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch new file mode 100644 index 0000000000..7932189de1 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch @@ -0,0 +1,24 @@ +From 56a0f05720575f229fbbd996c0798aaf23464924 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.com> +Date: Wed, 8 Sep 2021 15:41:18 +0100 +Subject: [PATCH] regulator: rpi-panel: Ensure the backlight is off + during probe. + +The initial state of the Atmel is not defined, so ensure the +backlight PWM is set to 0 by default. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> +--- + drivers/regulator/rpi-panel-attiny-regulator.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/regulator/rpi-panel-attiny-regulator.c ++++ b/drivers/regulator/rpi-panel-attiny-regulator.c +@@ -250,6 +250,7 @@ static int attiny_i2c_probe(struct i2c_c + + regmap_write(regmap, REG_POWERON, 0); + msleep(30); ++ regmap_write(regmap, REG_PWM, 0); + + config.dev = &i2c->dev; + config.regmap = regmap; |