linux-kernel - [PATCH v3] drm/mediatek: Support UYVY and YUYV format for overlay

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Message-ID: <1485232858-40418-1-git-send-email-bibby.hsieh@mediatek.com>
Date:   Tue, 24 Jan 2017 12:40:58 +0800
From:   Bibby Hsieh <bibby.hsieh@...iatek.com>
To:     David Airlie <airlied@...ux.ie>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>
CC:     Yingjoe Chen <yingjoe.chen@...iatek.com>,
        Cawa Cheng <cawa.cheng@...iatek.com>,
        Daniel Kurtz <djkurtz@...omium.org>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        YT Shen <yt.shen@...iatek.com>,
        Thierry Reding <thierry.reding@...il.com>,
        CK Hu <ck.hu@...iatek.com>, Mao Huang <littlecvr@...omium.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Sascha Hauer <kernel@...gutronix.de>
Subject: [PATCH v3] drm/mediatek: Support UYVY and YUYV format for overlay

MT8173 overlay can support UYVY and YUYV format,
we add the format in DRM driver.

Signed-off-by: Bibby Hsieh <bibby.hsieh@...iatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@...omium.org>
---
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c  | 7 +++++++
 drivers/gpu/drm/mediatek/mtk_drm_plane.c | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index c703102..53f2001 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -40,10 +40,13 @@
 #define	OVL_RDMA_MEM_GMC	0x40402020
 
 #define OVL_CON_BYTE_SWAP	BIT(24)
+#define OVL_CON_MTX_YUV_TO_RGB	(6 << 16)
 #define OVL_CON_CLRFMT_RGB565	(0 << 12)
 #define OVL_CON_CLRFMT_RGB888	(1 << 12)
 #define OVL_CON_CLRFMT_RGBA8888	(2 << 12)
 #define OVL_CON_CLRFMT_ARGB8888	(3 << 12)
+#define OVL_CON_CLRFMT_UYVY	(4 << 12)
+#define OVL_CON_CLRFMT_YUYV	(5 << 12)
 #define	OVL_CON_AEN		BIT(8)
 #define	OVL_CON_ALPHA		0xff
 
@@ -162,6 +165,10 @@ static unsigned int ovl_fmt_convert(unsigned int fmt)
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
 		return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_UYVY:
+		return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB;
+	case DRM_FORMAT_YUYV:
+		return OVL_CON_CLRFMT_YUYV | OVL_CON_MTX_YUV_TO_RGB;
 	}
 }
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index c461a23..8c02d1d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -28,6 +28,8 @@
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
 };
 
 static void mtk_plane_reset(struct drm_plane *plane)
-- 
1.9.1