This patch add YUYV/UYVY color format support for RDMA
and transform matrix for YUYV/UYVY.

Signed-off-by: Stu Hsieh <stu.hs...@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c 
b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 5b7dadc21016..49edbae50167 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -34,6 +34,8 @@
 #define RDMA_SOFT_RESET                                        BIT(4)
 #define RDMA_MODE_MEMORY                               BIT(1)
 #define DISP_REG_RDMA_SIZE_CON_0               0x0014
+#define RDMA_MATRIX_ENABLE                             BIT(17)
+#define RDMA_MATRIX_INT_MTX_SEL                                (7UL << 20)
 #define DISP_REG_RDMA_SIZE_CON_1               0x0018
 #define DISP_REG_RDMA_TARGET_LINE              0x001c
 #define DISP_RDMA_MEM_CON                      0x0024
@@ -54,6 +56,8 @@
 #define MEM_MODE_INPUT_FORMAT_RGB888           (0x001 << 4)
 #define MEM_MODE_INPUT_FORMAT_RGBA8888         (0x002 << 4)
 #define MEM_MODE_INPUT_FORMAT_ARGB8888         (0x003 << 4)
+#define MEM_MODE_INPUT_FORMAT_UYVY             (0x004 << 4)
+#define MEM_MODE_INPUT_FORMAT_YUYV             (0x005 << 4)
 
 struct mtk_disp_rdma_data {
        unsigned int fifo_size;
@@ -188,6 +192,10 @@ static unsigned int rdma_fmt_convert(struct mtk_disp_rdma 
*rdma,
        case DRM_FORMAT_XBGR8888:
        case DRM_FORMAT_ABGR8888:
                return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP;
+       case DRM_FORMAT_UYVY:
+               return MEM_MODE_INPUT_FORMAT_UYVY;
+       case DRM_FORMAT_YUYV:
+               return MEM_MODE_INPUT_FORMAT_YUYV;
        }
 }
 
@@ -206,6 +214,12 @@ static void mtk_rdma_layer_config(struct mtk_ddp_comp 
*comp, unsigned int idx,
 
        con = rdma_fmt_convert(rdma, fmt);
        writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON);
+       if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV)
+               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, 0xff0000,
+                                RDMA_MATRIX_ENABLE | RDMA_MATRIX_INT_MTX_SEL);
+       else
+               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, 0xff0000,
+                                MATRIX_INT_MTX_SEL_DEFAULT);
 
        writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
        writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);
-- 
2.12.5

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