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regulator: rpi-panel: Register with a unique backlight name

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There's no reason why 2 Raspberry Pi DSI displays can't be
attached to a Pi Compute Module, so the backlight names need to
be unique.

Use the parent dev_name. It's not as readable, but is unique.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Link: https://lore.kernel.org/r/20220124220129.158891-2-detlev.casanova@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Dave Stevenson 2022-01-24 17:01:21 -05:00 committed by Mark Brown
parent bef8c5fdf5
commit 7291e7d686
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GPG key ID: 24D68B725D5487D0
1 changed files with 1 additions and 2 deletions
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drivers/regulator/rpi-panel-attiny-regulator.c
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@ -181,8 +181,7 @@ static int attiny_i2c_probe(struct i2c_client *i2c,
props.type = BACKLIGHT_RAW;
props.max_brightness = 0xff;
bl = devm_backlight_device_register(&i2c->dev,
"7inch-touchscreen-panel-bl",
bl = devm_backlight_device_register(&i2c->dev, dev_name(&i2c->dev),
&i2c->dev, regmap, &attiny_bl,
&props);
if (IS_ERR(bl))