Re: [PATCH v2] pwm-backlight: fix the panel power sequence

From: Philipp Zabel
Date: Thu Oct 29 2015 - 11:41:14 EST

Hi YH,

Am Donnerstag, den 22.10.2015, 23:12 +0800 schrieb YH Huang:
> In the case of the panel disabled by the bootloader,
> your patch still has the following code and always enables the backlight
> in the probe function.
> pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",

You are right.

> What do you think if I remove these two lines in my patch?
> if (pb->enable_gpio)
> gpiod_direction_output(pb->enable_gpio, 0);

That won't work if the gpio is still configured as input. How about I
add the GPIOD_ASIS change to my patch you remove that and the above from

best regards

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