linux-kernel - Re: [PATCH] video: da8xx-fb: Fix casting of info->pseudo

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Message-ID: <CAMwGMjyobE5HXLyM0Eb7=5sLvS3H0FcEUPOMfwKEdd+adW4gcA@mail.gmail.com>
Date:	Wed, 26 Mar 2014 12:56:33 -0400
From:	Jon Ringle <jon@...gle.org>
To:	linux-fbdev@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:	Jon Ringle <jringle@...dpoint.com>
Subject: Re: [PATCH] video: da8xx-fb: Fix casting of info->pseudo_palette

I've not heard anything regarding this patch. I just want to make sure
it's not lost :)

Jon


On Wed, Mar 5, 2014 at 3:19 AM,  <jon@...gle.org> wrote:
> From: Jon Ringle <jringle@...dpoint.com>
>
> (Resending without corporate disclaimer in email footer)
>
> The casting to (u16 *) on info->pseudo_palette is wrong and causes the
> display to show a blue (garbage) vertical line on every other pixel column
>
> Signed-off-by: Jon Ringle <jringle@...dpoint.com>
> ---
>  drivers/video/da8xx-fb.c | 10 +---------
>  1 file changed, 1 insertion(+), 9 deletions(-)
>
> diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
> index d042624..83c43b2 100644
> --- a/drivers/video/da8xx-fb.c
> +++ b/drivers/video/da8xx-fb.c
> @@ -678,15 +678,7 @@ static int fb_setcolreg(unsigned regno, unsigned red, unsigned green,
>                         (green << info->var.green.offset) |
>                         (blue << info->var.blue.offset);
>
> -               switch (info->var.bits_per_pixel) {
> -               case 16:
> -                       ((u16 *) (info->pseudo_palette))[regno] = v;
> -                       break;
> -               case 24:
> -               case 32:
> -                       ((u32 *) (info->pseudo_palette))[regno] = v;
> -                       break;
> -               }
> +               ((u32 *) (info->pseudo_palette))[regno] = v;
>                 if (palette[0] != 0x4000) {
>                         update_hw = 1;
>                         palette[0] = 0x4000;
> --
> 1.8.5.4
>
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