linux-kernel - Re: It has added ARGB1888 and ARGB4888 features to Samsung SoC Framebuffer driver.

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Date:	Thu, 9 Apr 2009 09:59:24 -0700
From:	Kyungmin Park <kmpark@...radead.org>
To:	InKi Dae <daeinki@...il.com>
Cc:	ben-linux@...ff.org, linux-fbdev-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, kyungmin.park@...sung.com
Subject: Re: It has added ARGB1888 and ARGB4888 features to Samsung SoC 
	Framebuffer driver.

Hi,

On Thu, Apr 9, 2009 at 12:59 AM, InKi Dae <daeinki@...il.com> wrote:
> This patch supports ARGB1888 and ARGB4888 for Samsung SoC Framebuffer
> driver. (s3c-fb.c)
> I tested and is working fine.
>
> If this patch has any problem, please let me know.
> I'll look forward to applying to mainline.
>
> Thank you,
> InKi Dae.

Please give you signed-off-by here and more descriptions

>
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
> index e0e7899..55d2298 100644
> --- a/drivers/video/s3c-fb.c
> +++ b/drivers/video/s3c-fb.c
> @@ -358,9 +358,16 @@ static int s3c_fb_set_par(struct fb_info *info)
>  writel(data, regs + VIDOSD_B(win_no));
>
>  data = var->xres * var->yres;
> +
> + u32 osdc_data = 0;
> +
> + osdc_data = VIDISD14C_ALPHA1_R(0xf) |
> +  VIDISD14C_ALPHA1_G(0xf) |
> +  VIDISD14C_ALPHA1_B(0xf);
> +
>  if (s3c_fb_has_osd_d(win_no)) {
>   writel(data, regs + VIDOSD_D(win_no));
> -  writel(0, regs + VIDOSD_C(win_no));
> +  writel(osdc_data, regs + VIDOSD_C(win_no));
>  } else
>   writel(data, regs + VIDOSD_C(win_no));
>
> @@ -409,8 +416,12 @@ static int s3c_fb_set_par(struct fb_info *info)
>     data |= WINCON1_BPPMODE_19BPP_A1666;
>    else
>     data |= WINCON1_BPPMODE_18BPP_666;
> -  } else if (var->transp.length != 0)
> -   data |= WINCON1_BPPMODE_25BPP_A1888;
> +  } else if (var->transp.length == 1)
> +   data |= WINCON1_BPPMODE_25BPP_A1888
> +    | WINCON1_BLD_PIX;
> +  else if (var->transp.length == 4)
> +   data |= WINCON1_BPPMODE_28BPP_A4888
> +    | WINCON1_BLD_PIX | WINCON1_ALPHA_SEL;
>   else
>    data |= WINCON0_BPPMODE_24BPP_888;
>
> @@ -418,6 +429,20 @@ static int s3c_fb_set_par(struct fb_info *info)
>   break;
>  }
>
> + /* It has no color key control register for window0 */
> + if (win_no > 0) {
> +  u32 keycon0_data = 0, keycon1_data = 0;
> +
> +  keycon0_data = ~(WxKEYCON0_KEYBL_EN |
> +    WxKEYCON0_KEYEN_F |
> +    WxKEYCON0_DIRCON) | WxKEYCON0_COMPKEY(0);
> +
> +  keycon1_data = WxKEYCON1_COLVAL(0xffffff);
> +
> +  writel(keycon0_data, regs + WxKEYCONy(win_no-1, 0));
> +  writel(keycon1_data, regs + WxKEYCONy(win_no-1, 1));
> + }
> +
>  writel(data, regs + WINCON(win_no));
>  writel(0x0, regs + WINxMAP(win_no));
> --
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