From: Jingoo Han <jg1.han@samsung.com>
To: "'Oskar Andero'" <oskar.andero@sonymobile.com>,
        linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org
Cc: "'Jean-Christophe Plagniol-Villard'" <plagnioj@jcrosoft.com>,
        "'Tomi Valkeinen'" <tomi.valkeinen@ti.com>,
        "'Radovan Lekanovic'" <Radovan.Lekanovic@sonymobile.com>,
        "'Shingo Nakao'" <shingo.x.nakao@sonymobile.com>,
        "'Milo Kim'" <milo.kim@ti.com>, "'Richard Purdie'" <rpurdie@rpsys.net>,
        Jingoo Han <jg1.han@samsung.com>
References: <1372767354-16499-1-git-send-email-oskar.andero@sonymobile.com>
In-reply-to: <1372767354-16499-1-git-send-email-oskar.andero@sonymobile.com>
Subject: Re: [PATCH] backlight: lp855x: set zero brightness at FBBLANK
Date: Wed, 03 Jul 2013 10:52:16 +0900
Message-id: <001e01ce778f$f2033c10$d609b430$@samsung.com>
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On Tuesday, July 02, 2013 9:16 PM, Oskar Andero wrote:
> 
> From: Shingo Nakao <shingo.x.nakao@sonymobile.com>
> 
> When backlight turns on early from display, a white line can be
> seen on the screen. Therefore make sure backlight is off when we
> are under an fb blank event.
> 
> Signed-off-by: Shingo Nakao <shingo.x.nakao@sonymobile.com>
> Cc: Milo Kim <milo.kim@ti.com>
> Cc: Richard Purdie <rpurdie@rpsys.net>
> Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com>

Acked-by: Jingoo Han <jg1.han@samsung.com>

Best regards,
Jingoo Han

> ---
>  drivers/video/backlight/lp855x_bl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
> index a0e1e02..c0b41f1 100644
> --- a/drivers/video/backlight/lp855x_bl.c
> +++ b/drivers/video/backlight/lp855x_bl.c
> @@ -246,7 +246,7 @@ static int lp855x_bl_update_status(struct backlight_device *bl)
>  {
>  	struct lp855x *lp = bl_get_data(bl);
> 
> -	if (bl->props.state & BL_CORE_SUSPENDED)
> +	if (bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
>  		bl->props.brightness = 0;
> 
>  	if (lp->mode == PWM_BASED) {
> --
> 1.8.1.5
> 


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