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backlight: rave-sp: Leave initial state and register with correct device 

This way the backlight can be referenced through its device node and
enabling/disabling can be managed through the panel driver.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lucas Stach 2019-07-08 14:41:29 +02:00 committed by Lee Jones
parent 5f9e832c13
commit 865cac14c2
1 changed files with 8 additions and 2 deletions
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10
drivers/video/backlight/rave-sp-backlight.c
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@ -48,14 +48,20 @@ static int rave_sp_backlight_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct backlight_device *bd;
bd = devm_backlight_device_register(dev, pdev->name, dev->parent,
bd = devm_backlight_device_register(dev, pdev->name, dev,
dev_get_drvdata(dev->parent),
&rave_sp_backlight_ops,
&rave_sp_backlight_props);
if (IS_ERR(bd))
return PTR_ERR(bd);
backlight_update_status(bd);
/*
* If there is a phandle pointing to the device node we can
* assume that another device will manage the status changes.
* If not we make sure the backlight is in a consistent state.
*/
if (!dev->of_node->phandle)
backlight_update_status(bd);
return 0;
}