linux-kernel - Re: [PATCH] drm/rockchip: Add BGR formats to VOP

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Message-ID: <554C766A.8070103@rock-chips.com>
Date:	Fri, 08 May 2015 16:40:10 +0800
From:	Mark yao <mark.yao@...k-chips.com>
To:	Tomasz Figa <tfiga@...omium.org>, dri-devel@...ts.freedesktop.org
CC:	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Daniel Kurtz <djkurtz@...omium.org>,
	Heiko Stuebner <heiko@...ech.de>,
	David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH] drm/rockchip: Add BGR formats to VOP

Hi Tomasz
     Thanks for the fix, but some register is wrong.

On 2015年05月08日 16:16, Tomasz Figa wrote:
> VOP can support BGR formats in all windows thanks to red/blue swap option
> provided in WINx_CTRL0 registers. This patch enables support for
> ABGR8888, XBGR8888, BGR888 and BGR565 formats by using this feature.
>
> Signed-off-by: Tomasz Figa <tfiga@...omium.org>
> ---
>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 33 +++++++++++++++++++++++++++++
>   1 file changed, 33 insertions(+)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 4557f33..45fa11c 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -169,6 +169,7 @@ struct vop_win_phy {
>   
>   	struct vop_reg enable;
>   	struct vop_reg format;
> +	struct vop_reg rb_swap;
>   	struct vop_reg act_info;
>   	struct vop_reg dsp_info;
>   	struct vop_reg dsp_st;
> @@ -198,8 +199,12 @@ struct vop_data {
>   static const uint32_t formats_01[] = {
>   	DRM_FORMAT_XRGB8888,
>   	DRM_FORMAT_ARGB8888,
> +	DRM_FORMAT_XBGR8888,
> +	DRM_FORMAT_ABGR8888,
>   	DRM_FORMAT_RGB888,
> +	DRM_FORMAT_BGR888,
>   	DRM_FORMAT_RGB565,
> +	DRM_FORMAT_BGR565,
>   	DRM_FORMAT_NV12,
>   	DRM_FORMAT_NV16,
>   	DRM_FORMAT_NV24,
> @@ -208,8 +213,12 @@ static const uint32_t formats_01[] = {
>   static const uint32_t formats_234[] = {
>   	DRM_FORMAT_XRGB8888,
>   	DRM_FORMAT_ARGB8888,
> +	DRM_FORMAT_XBGR8888,
> +	DRM_FORMAT_ABGR8888,
>   	DRM_FORMAT_RGB888,
> +	DRM_FORMAT_BGR888,
>   	DRM_FORMAT_RGB565,
> +	DRM_FORMAT_BGR565,
>   };
>   
>   static const struct vop_win_phy win01_data = {
> @@ -217,6 +226,7 @@ static const struct vop_win_phy win01_data = {
>   	.nformats = ARRAY_SIZE(formats_01),
>   	.enable = VOP_REG(WIN0_CTRL0, 0x1, 0),
>   	.format = VOP_REG(WIN0_CTRL0, 0x7, 1),
> +	.rb_swap = VOP_REG(WIN0_CTRL0, 0x1, 12),
>   	.act_info = VOP_REG(WIN0_ACT_INFO, 0x1fff1fff, 0),
>   	.dsp_info = VOP_REG(WIN0_DSP_INFO, 0x0fff0fff, 0),
>   	.dsp_st = VOP_REG(WIN0_DSP_ST, 0x1fff1fff, 0),
> @@ -233,6 +243,7 @@ static const struct vop_win_phy win23_data = {
>   	.nformats = ARRAY_SIZE(formats_234),
>   	.enable = VOP_REG(WIN2_CTRL0, 0x1, 0),
>   	.format = VOP_REG(WIN2_CTRL0, 0x7, 1),
> +	.rb_swap = VOP_REG(WIN0_CTRL0, 0x1, 12),
Should be:

	.rb_swap = VOP_REG(VOP_WIN2_CTRL0, 0x1, 12),

>   	.dsp_info = VOP_REG(WIN2_DSP_INFO0, 0x0fff0fff, 0),
>   	.dsp_st = VOP_REG(WIN2_DSP_ST0, 0x1fff1fff, 0),
>   	.yrgb_mst = VOP_REG(WIN2_MST0, 0xffffffff, 0),
> @@ -246,6 +257,7 @@ static const struct vop_win_phy cursor_data = {
>   	.nformats = ARRAY_SIZE(formats_234),
>   	.enable = VOP_REG(HWC_CTRL0, 0x1, 0),
>   	.format = VOP_REG(HWC_CTRL0, 0x7, 1),
> +	.rb_swap = VOP_REG(WIN0_CTRL0, 0x1, 12),
cursor win not support rb_swap, remove it.
>   	.dsp_st = VOP_REG(HWC_DSP_ST, 0x1fff1fff, 0),
>   	.yrgb_mst = VOP_REG(HWC_MST, 0xffffffff, 0),
>   };
> @@ -351,15 +363,32 @@ static inline void vop_mask_write_relaxed(struct vop *vop, uint32_t offset,
>   	}
>   }
>   
> +static bool has_rb_swapped(uint32_t format)
> +{
> +	switch (format) {
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_ABGR8888:
> +	case DRM_FORMAT_BGR888:
> +	case DRM_FORMAT_BGR565:
> +		return true;
> +	default:
> +		return false;
> +	}
> +}
> +
>   static enum vop_data_format vop_convert_format(uint32_t format)
>   {
>   	switch (format) {
>   	case DRM_FORMAT_XRGB8888:
>   	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_ABGR8888:
>   		return VOP_FMT_ARGB8888;
>   	case DRM_FORMAT_RGB888:
> +	case DRM_FORMAT_BGR888:
>   		return VOP_FMT_RGB888;
>   	case DRM_FORMAT_RGB565:
> +	case DRM_FORMAT_BGR565:
>   		return VOP_FMT_RGB565;
>   	case DRM_FORMAT_NV12:
>   		return VOP_FMT_YUV420SP;
> @@ -377,6 +406,7 @@ static bool is_alpha_support(uint32_t format)
>   {
>   	switch (format) {
>   	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_ABGR8888:
>   		return true;
>   	default:
>   		return false;
> @@ -587,6 +617,7 @@ static int vop_update_plane_event(struct drm_plane *plane,
>   	enum vop_data_format format;
>   	uint32_t val;
>   	bool is_alpha;
> +	bool rb_swap;
>   	bool visible;
>   	int ret;
>   	struct drm_rect dest = {
> @@ -620,6 +651,7 @@ static int vop_update_plane_event(struct drm_plane *plane,
>   		return 0;
>   
>   	is_alpha = is_alpha_support(fb->pixel_format);
> +	rb_swap = has_rb_swapped(fb->pixel_format);
>   	format = vop_convert_format(fb->pixel_format);
>   	if (format < 0)
>   		return format;
> @@ -688,6 +720,7 @@ static int vop_update_plane_event(struct drm_plane *plane,
>   	val = (dsp_sty - 1) << 16;
>   	val |= (dsp_stx - 1) & 0xffff;
>   	VOP_WIN_SET(vop, win, dsp_st, val);
> +	VOP_WIN_SET(vop, win, rb_swap, rb_swap);
>   
>   	if (is_alpha) {
>   		VOP_WIN_SET(vop, win, dst_alpha_ctl,


-- 
Ｍark Yao


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