drm/mediatek: add YUYV/UYVY color format support for RDMA

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

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 091e48e..2d27e15 100644 (file)
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -33,6 +33,9 @@
 #define RDMA_ENGINE_EN                                 BIT(0)
 #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                                GENMASK(23, 20)
+#define RDMA_MATRIX_INT_MTX_BT601_to_RGB               (6 << 20)
 #define DISP_REG_RDMA_SIZE_CON_1               0x0018
 #define DISP_REG_RDMA_TARGET_LINE              0x001c
 #define DISP_RDMA_MEM_CON                      0x0024
@@ -40,6 +43,8 @@
 #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)
 #define MEM_MODE_INPUT_SWAP                            BIT(8)
 #define DISP_RDMA_MEM_SRC_PITCH                        0x002c
 #define DISP_RDMA_MEM_GMC_SETTING_0            0x0030
@@ -180,6 +185,10 @@ 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;
        }
 }
 
@@ -196,6 +205,17 @@ 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,
+                                RDMA_MATRIX_ENABLE, RDMA_MATRIX_ENABLE);
+               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
+                                RDMA_MATRIX_INT_MTX_SEL,
+                                RDMA_MATRIX_INT_MTX_BT601_to_RGB);
+       } else {
+               rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0,
+                                RDMA_MATRIX_ENABLE, 0);
+       }
+
        writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
        writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);
        writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0);