From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Pargmann Subject: [PATCH] pwm-backlight: Turn off pwm backlight in probe Date: Mon, 6 Oct 2014 21:22:44 +0200 Message-ID: <1412623364-14583-1-git-send-email-mpa@pengutronix.de> Return-path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:40513 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750859AbaJFTXG (ORCPT ); Mon, 6 Oct 2014 15:23:06 -0400 Sender: linux-pwm-owner@vger.kernel.org List-Id: linux-pwm@vger.kernel.org To: Thierry Reding Cc: Lee Jones , Jingoo Han , Bryan Wu , linux-pwm@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Markus Pargmann 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 --- 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