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From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] board: ge: bx50v3: don't configure the backlight when there's no display
Date: Tue, 24 May 2016 16:07:37 +0200	[thread overview]
Message-ID: <57446029.3030803@denx.de> (raw)
In-Reply-To: <1463746931-7440-1-git-send-email-andrew.shadura@collabora.co.uk>

Hi Andrew,

On 20/05/2016 14:22, Andrew Shadura wrote:
> Don't try to configure the backlight when CONFIG_VIDEO_IPUV3 isn't set.
> 
> Signed-off-by: Andrew Shadura <andrew.shadura@collabora.co.uk>
> ---
>  board/ge/bx50v3/bx50v3.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/board/ge/bx50v3/bx50v3.c b/board/ge/bx50v3/bx50v3.c
> index e167cd5..fb112ee 100644
> --- a/board/ge/bx50v3/bx50v3.c
> +++ b/board/ge/bx50v3/bx50v3.c
> @@ -601,6 +601,8 @@ int board_late_init(void)
>  #ifdef CONFIG_CMD_BMODE
>  	add_board_boot_modes(board_boot_modes);
>  #endif
> +
> +#ifdef CONFIG_VIDEO_IPUV3
>  	/* We need at least 200ms between power on and backlight on
>  	 * as per specifications from CHI MEI */
>  	mdelay(250);
> @@ -615,6 +617,7 @@ int board_late_init(void)
>  	gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
>  
>  	pwm_enable(0);
> +#endif

...but CONFIG_VIDEO_IPUV3 is set in include/configs/ge_bx50v3.h, that
means your changes works on a out-of-tree version of the board.

To get this real working, you need to set CONFIG_VIDEO_IPUV3 via
menuconfig, that is outside ge_bx50v3.h.

Best regards,
Stefano Babic

-- 
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DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

  reply	other threads:[~2016-05-24 14:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-20 12:22 [U-Boot] [PATCH] board: ge: bx50v3: don't configure the backlight when there's no display Andrew Shadura
2016-05-24 14:07 ` Stefano Babic [this message]
2016-05-24 14:09   ` Andrew Shadura
2016-05-24 15:26     ` Stefano Babic
2016-05-24 15:28       ` Andrew Shadura
2016-05-24 15:33         ` Stefano Babic

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