[PATCH v2 4/9] regulator: rpi-panel: Ensure the backlight is off during probe.

Detlev Casanova
2022-01-21T15:21:48Z

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(+)

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;
--
2.34.1