[PATCH 4/5] drm/mediatek: Add MDP-RSZ component support for MT8196

[Sunny Shen]

Add MDP-RSZ component support for MT8196.

Signed-off-by: Sunny Shen <sunny.shen at mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_ddp_comp.c | 24 ++++++++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_ddp_comp.h |  1 +
 drivers/gpu/drm/mediatek/mtk_drm_drv.c  |  2 ++
 3 files changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
index 7f09a8977965..65878d3fe8a9 100644
--- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
@@ -46,6 +46,10 @@
 #define DSC_BYPASS				BIT(4)
 #define DSC_UFOE_SEL				BIT(16)
 
+#define DISP_REG_MDP_RSZ_EN			0x0000
+#define DISP_REG_MDP_RSZ_INPUT_SIZE		0x0010
+#define DISP_REG_MDP_RSZ_OUTPUT_SIZE		0x0014
+
 #define DISP_REG_OD_EN				0x0000
 #define DISP_REG_OD_CFG				0x0020
 #define OD_RELAYMODE				BIT(0)
@@ -235,6 +239,18 @@ static void mtk_od_start(struct device *dev)
 	writel(1, priv->regs + DISP_REG_OD_EN);
 }
 
+static void mtk_mdp_rsz_config(struct device *dev, unsigned int w,
+			       unsigned int h, unsigned int vrefresh,
+			       unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MDP_RSZ_INPUT_SIZE);
+	mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MDP_RSZ_OUTPUT_SIZE);
+}
+
 static void mtk_postmask_config(struct device *dev, unsigned int w,
 				unsigned int h, unsigned int vrefresh,
 				unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
@@ -391,6 +407,12 @@ static const struct mtk_ddp_comp_funcs ddp_ovlsys_adaptor = {
 	.get_num_formats = mtk_ovlsys_adaptor_get_num_formats,
 };
 
+static const struct mtk_ddp_comp_funcs ddp_mdp_rsz = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.config = mtk_mdp_rsz_config,
+};
+
 static const struct mtk_ddp_comp_funcs ddp_postmask = {
 	.clk_enable = mtk_ddp_clk_enable,
 	.clk_disable = mtk_ddp_clk_disable,
@@ -454,6 +476,7 @@ static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
 	[MTK_DISP_DITHER] = "dither",
 	[MTK_DISP_DSC] = "dsc",
 	[MTK_DISP_GAMMA] = "gamma",
+	[MTK_DISP_MDP_RSZ] = "mdp-rsz",
 	[MTK_DISP_MERGE] = "merge",
 	[MTK_DISP_MUTEX] = "mutex",
 	[MTK_DISP_OD] = "od",
@@ -515,6 +538,7 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_DRM_ID_MAX]
 	[DDP_COMPONENT_DSI2]		= { MTK_DSI,			2, &ddp_dsi },
 	[DDP_COMPONENT_DSI3]		= { MTK_DSI,			3, &ddp_dsi },
 	[DDP_COMPONENT_GAMMA]		= { MTK_DISP_GAMMA,		0, &ddp_gamma },
+	[DDP_COMPONENT_MDP_RSZ0]	= { MTK_DISP_MDP_RSZ,		0, &ddp_mdp_rsz},
 	[DDP_COMPONENT_MERGE0]		= { MTK_DISP_MERGE,		0, &ddp_merge },
 	[DDP_COMPONENT_MERGE1]		= { MTK_DISP_MERGE,		1, &ddp_merge },
 	[DDP_COMPONENT_MERGE2]		= { MTK_DISP_MERGE,		2, &ddp_merge },
diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
index badb42bd4f7c..87f573fcc903 100644
--- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.h
@@ -36,6 +36,7 @@ enum mtk_ddp_comp_type {
 	MTK_DISP_OVLSYS_ADAPTOR,
 	MTK_DISP_OVL_2L,
 	MTK_DISP_OVL_ADAPTOR,
+	MTK_DISP_MDP_RSZ,
 	MTK_DISP_POSTMASK,
 	MTK_DISP_PWM,
 	MTK_DISP_RDMA,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 50f5f81a7da1..b810a197f58b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -885,6 +885,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
 	  .data = (void *)MTK_DISP_GAMMA, },
 	{ .compatible = "mediatek,mt8195-disp-gamma",
 	  .data = (void *)MTK_DISP_GAMMA, },
+	{ .compatible = "mediatek,mt8196-disp-mdp-rsz",
+	  .data = (void *)MTK_DISP_MDP_RSZ },
 	{ .compatible = "mediatek,mt8195-disp-merge",
 	  .data = (void *)MTK_DISP_MERGE },
 	{ .compatible = "mediatek,mt2701-disp-mutex",
-- 
2.34.1