Add MDP-RSZ component support for MT8196.

Signed-off-by: Sunny Shen <sunny.s...@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

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