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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;
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