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25 lines
812 B
Diff
25 lines
812 B
Diff
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From 56a0f05720575f229fbbd996c0798aaf23464924 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Wed, 8 Sep 2021 15:41:18 +0100
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Subject: [PATCH] regulator: rpi-panel: Ensure the backlight is off
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during probe.
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The initial state of the Atmel is not defined, so ensure the
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backlight PWM is set to 0 by default.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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drivers/regulator/rpi-panel-attiny-regulator.c | 1 +
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1 file changed, 1 insertion(+)
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--- a/drivers/regulator/rpi-panel-attiny-regulator.c
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+++ b/drivers/regulator/rpi-panel-attiny-regulator.c
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@@ -250,6 +250,7 @@ static int attiny_i2c_probe(struct i2c_c
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regmap_write(regmap, REG_POWERON, 0);
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msleep(30);
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+ regmap_write(regmap, REG_PWM, 0);
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config.dev = &i2c->dev;
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config.regmap = regmap;
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