Re: [PATCH 2/2] backlight: pwm: Add backlight-boot-off property
flat view
From: Ajay kumar <hidden>
Date: 2015-02-26 05:59:04
Also in:
linux-pwm
Hi Huang, On Thu, Feb 26, 2015 at 9:09 AM, huang lin [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Add backlight-boot-off property, so we can keeping the backlight disabled at boot until it is enabled implicitly by a panel driver, or explicitly by userspace Signed-off-by: huang lin <redacted> --- drivers/video/backlight/pwm_bl.c | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 3a145a6..dece351 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c@@ -319,6 +319,10 @@ static int pwm_backlight_probe(struct platform_device *pdev) } bl->props.brightness = data->dft_brightness; + + if (of_find_property(pdev->dev.of_node, "backlight-boot-off", NULL)) + bl->props.power = FB_BLANK_POWERDOWN; +
You need to check this. Originally, Thierry proposed it. http://permalink.gmane.org/gmane.linux.drivers.devicetree/84604
backlight_update_status(bl);
platform_set_drvdata(pdev, bl);
--
1.9.1
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