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authorDave Stevenson <dave.stevenson@raspberrypi.com>2022-01-24 17:01:24 -0500
committerMark Brown <broonie@kernel.org>2022-01-28 20:55:48 +0000
commit89339a2ae7608138dbcccda8db67a87870550cbe (patch)
tree9c0cf212f40492a3da231d8290203787231b88eb /drivers
parent00440bcd211a3cac686b730447c4efa3d4c84c2a (diff)
downloadlinux-89339a2ae7608138dbcccda8db67a87870550cbe.tar.bz2
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> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com> Link: https://lore.kernel.org/r/20220124220129.158891-5-detlev.casanova@collabora.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/regulator/rpi-panel-attiny-regulator.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/regulator/rpi-panel-attiny-regulator.c b/drivers/regulator/rpi-panel-attiny-regulator.c
index a4af7adad2b5..b3629a1e0e50 100644
--- 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_client *i2c,
regmap_write(regmap, REG_POWERON, 0);
msleep(30);
+ regmap_write(regmap, REG_PWM, 0);
config.dev = &i2c->dev;
config.regmap = regmap;