[PATCH 2/2] backlight: pwm: Add backlight-boot-off property
From: huang lin <hidden>
Date: 2015-02-26 03:39:14
Also in:
linux-pwm
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
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; + backlight_update_status(bl); platform_set_drvdata(pdev, bl);
--
1.9.1