drm/mediatek: add RGB color format support for RDMA (b428391e) · Commits · 戴 / test

drivers/gpu/drm/mediatek/mtk_disp_rdma.c

+45 −0

Original line number	Diff line number	Diff line
		@@ -35,6 +35,12 @@
		#define DISP_REG_RDMA_SIZE_CON_0 0x0014
		#define DISP_REG_RDMA_SIZE_CON_1 0x0018
		#define DISP_REG_RDMA_TARGET_LINE 0x001c
		#define DISP_RDMA_MEM_CON 0x0024
		#define MEM_MODE_INPUT_FORMAT_RGB565 (0x000 << 4)
		#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_SWAP BIT(8)
		#define DISP_RDMA_MEM_SRC_PITCH 0x002c
		#define DISP_RDMA_MEM_GMC_SETTING_0 0x0030
		#define DISP_REG_RDMA_FIFO_CON 0x0040
		@@ -144,12 +150,51 @@ static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width,
		writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON);
		}

		static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
		unsigned int fmt)
		{
		/* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
		* is defined in mediatek HW data sheet.
		* The alphabet order in XXX is no relation to data
		* arrangement in memory.
		*/
		switch (fmt) {
		default:
		case DRM_FORMAT_RGB565:
		return MEM_MODE_INPUT_FORMAT_RGB565;
		case DRM_FORMAT_BGR565:
		return MEM_MODE_INPUT_FORMAT_RGB565 \| MEM_MODE_INPUT_SWAP;
		case DRM_FORMAT_RGB888:
		return MEM_MODE_INPUT_FORMAT_RGB888;
		case DRM_FORMAT_BGR888:
		return MEM_MODE_INPUT_FORMAT_RGB888 \| MEM_MODE_INPUT_SWAP;
		case DRM_FORMAT_RGBX8888:
		case DRM_FORMAT_RGBA8888:
		return MEM_MODE_INPUT_FORMAT_ARGB8888;
		case DRM_FORMAT_BGRX8888:
		case DRM_FORMAT_BGRA8888:
		return MEM_MODE_INPUT_FORMAT_ARGB8888 \| MEM_MODE_INPUT_SWAP;
		case DRM_FORMAT_XRGB8888:
		case DRM_FORMAT_ARGB8888:
		return MEM_MODE_INPUT_FORMAT_RGBA8888;
		case DRM_FORMAT_XBGR8888:
		case DRM_FORMAT_ABGR8888:
		return MEM_MODE_INPUT_FORMAT_RGBA8888 \| MEM_MODE_INPUT_SWAP;
		}
		}

		static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
		struct mtk_plane_state *state)
		{
		struct mtk_disp_rdma *rdma = comp_to_rdma(comp);
		struct mtk_plane_pending_state *pending = &state->pending;
		unsigned int addr = pending->addr;
		unsigned int pitch = pending->pitch & 0xffff;
		unsigned int fmt = pending->format;
		unsigned int con;

		con = rdma_fmt_convert(rdma, fmt);
		writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON);

		writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR);
		writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH);

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