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authorÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-16 23:40:32 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2022-05-17 15:11:22 +0200
commit20ea6adbf199097c4f5f591ffee088340630dae4 (patch)
treed6719d95e136611a1c25bbf7789652d6d402779d /target/linux/bcm27xx/patches-5.15/950-0483-regulator-rpi-panel-Ensure-the-backlight-is-off-duri.patch
parentbca05bd072180dc38ef740b37ded9572a6db1981 (diff)
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bcm27xx: add support for linux v5.15
Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones <mj8263788@gmail.com> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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.patch24
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;