From: mpa@pengutronix.de (Markus Pargmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] pwm-backlight: Turn off pwm backlight in probe
Date: Mon, 6 Oct 2014 21:22:44 +0200 [thread overview]
Message-ID: <1412623364-14583-1-git-send-email-mpa@pengutronix.de> (raw)
The backlight will be enabled by the panel again if it is used. So we
can save the default brightness and disable the pwm backlight when
probing.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
---
drivers/video/backlight/pwm_bl.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 336b83be7e2d..b4f433a6f106 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -317,9 +317,11 @@ static int pwm_backlight_probe(struct platform_device *pdev)
data->dft_brightness = data->max_brightness;
}
- bl->props.brightness = data->dft_brightness;
+ bl->props.brightness = 0;
backlight_update_status(bl);
+ bl->props.brightness = data->dft_brightness;
+
platform_set_drvdata(pdev, bl);
return 0;
--
2.1.0
next reply other threads:[~2014-10-06 19:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 19:22 Markus Pargmann [this message]
2014-10-07 8:35 ` [PATCH] pwm-backlight: Turn off pwm backlight in probe Thierry Reding
2014-10-07 9:06 ` Lee Jones
2014-10-07 9:07 ` Markus Pargmann
2014-10-07 9:17 ` Ajay kumar
2014-10-08 9:55 ` Markus Pargmann
2014-10-08 9:44 ` Jingoo Han
2014-10-08 12:13 ` Thierry Reding
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