linux-kernel - Re: [Linux-fbdev-devel] [PATCH] cirrusfb: fix color component length for pseudocolor modes

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Message-Id: <20090331072351.5028D7DC90B@f20.poczta.interia.pl>
Date:	31 Mar 2009 09:23:51 +0200
From:	krzysztof.h1@...zta.fm
To:	Michal Januszewski <spock@...too.org>,
	linux-kernel@...r.kernel.org,
	linux-fbdev-devel@...ts.sourceforge.net
Subject: Re: [Linux-fbdev-devel] [PATCH] cirrusfb: fix color component length for pseudocolor modes

Michal Januszewski napisał(a):
> cirrusfb incorrectly sets the length of the color fields to 6 bits
> for PSEUDOCOLOR modes, even though 8 bits are always used per pixel.
> Fix this by setting the length to 8.
> 
> Signed-off-by: Michal Januszewski >spock@...too.org>
> ---
> diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
> index a2aa6dd..2dfe0e7 100644
> --- a/drivers/video/cirrusfb.c
> +++ b/drivers/video/cirrusfb.c
> @@ -550,7 +550,7 @@ static int cirrusfb_check_var(struct fb_var_screeninfo
> *var,
>  
>  	case 8:
>  		var->red.offset = 0;
> -		var->red.length = 6;
> +		var->red.length = 8;
>  		var->green = var->red;
>  		var->blue = var->red;
>  		break;
> 

This is already fixed in the -mm tree (cirrusfb-check_var-improvements.patch).

Regards,
Krzysztof

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