[PATCH v6 18/20] drm/mediatek: Add Padding to OVL adaptor

[Hsiao Chien Sung]

Add MT8188 Padding to OVL adaptor to probe the driver.

Signed-off-by: Hsiao Chien Sung <shawn.sung at mediatek.com>
---
 .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c   | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
index 84133303a6ec..217c39af27bd 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
@@ -30,6 +30,7 @@ enum mtk_ovl_adaptor_comp_type {
 	OVL_ADAPTOR_TYPE_ETHDR,
 	OVL_ADAPTOR_TYPE_MDP_RDMA,
 	OVL_ADAPTOR_TYPE_MERGE,
+	OVL_ADAPTOR_TYPE_PADDING,
 	OVL_ADAPTOR_TYPE_NUM,
 };

@@ -47,6 +48,14 @@ enum mtk_ovl_adaptor_comp_id {
 	OVL_ADAPTOR_MERGE1,
 	OVL_ADAPTOR_MERGE2,
 	OVL_ADAPTOR_MERGE3,
+	OVL_ADAPTOR_PADDING0,
+	OVL_ADAPTOR_PADDING1,
+	OVL_ADAPTOR_PADDING2,
+	OVL_ADAPTOR_PADDING3,
+	OVL_ADAPTOR_PADDING4,
+	OVL_ADAPTOR_PADDING5,
+	OVL_ADAPTOR_PADDING6,
+	OVL_ADAPTOR_PADDING7,
 	OVL_ADAPTOR_ID_MAX
 };

@@ -67,6 +76,7 @@ static const char * const private_comp_stem[OVL_ADAPTOR_TYPE_NUM] = {
 	[OVL_ADAPTOR_TYPE_ETHDR]	= "ethdr",
 	[OVL_ADAPTOR_TYPE_MDP_RDMA]	= "vdo1-rdma",
 	[OVL_ADAPTOR_TYPE_MERGE]	= "merge",
+	[OVL_ADAPTOR_TYPE_PADDING]	= "padding",
 };

 static const struct mtk_ddp_comp_funcs _ethdr = {
@@ -79,6 +89,11 @@ static const struct mtk_ddp_comp_funcs _merge = {
 	.clk_disable = mtk_merge_clk_disable,
 };

+static const struct mtk_ddp_comp_funcs _padding = {
+	.clk_enable = mtk_padding_clk_enable,
+	.clk_disable = mtk_padding_clk_disable,
+};
+
 static const struct mtk_ddp_comp_funcs _rdma = {
 	.clk_enable = mtk_mdp_rdma_clk_enable,
 	.clk_disable = mtk_mdp_rdma_clk_disable,
@@ -98,6 +113,14 @@ static const struct ovl_adaptor_comp_match comp_matches[OVL_ADAPTOR_ID_MAX] = {
 	[OVL_ADAPTOR_MERGE1] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE2, 2, &_merge },
 	[OVL_ADAPTOR_MERGE2] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE3, 3, &_merge },
 	[OVL_ADAPTOR_MERGE3] = { OVL_ADAPTOR_TYPE_MERGE, DDP_COMPONENT_MERGE4, 4, &_merge },
+	[OVL_ADAPTOR_PADDING0] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING0, 0, &_padding },
+	[OVL_ADAPTOR_PADDING1] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING1, 1, &_padding },
+	[OVL_ADAPTOR_PADDING2] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING2, 2, &_padding },
+	[OVL_ADAPTOR_PADDING3] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING3, 3, &_padding },
+	[OVL_ADAPTOR_PADDING4] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING4, 4, &_padding },
+	[OVL_ADAPTOR_PADDING5] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING5, 5, &_padding },
+	[OVL_ADAPTOR_PADDING6] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING6, 6, &_padding },
+	[OVL_ADAPTOR_PADDING7] = { OVL_ADAPTOR_TYPE_PADDING, DDP_COMPONENT_PADDING7, 7, &_padding },
 };

 void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
@@ -109,6 +132,8 @@ void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
 	struct mtk_mdp_rdma_cfg rdma_config = {0};
 	struct device *rdma_l;
 	struct device *rdma_r;
+	struct device *padding_l;
+	struct device *padding_r;
 	struct device *merge;
 	struct device *ethdr;
 	const struct drm_format_info *fmt_info = drm_format_info(pending->format);
@@ -125,6 +150,8 @@ void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,

 	rdma_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx];
 	rdma_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MDP_RDMA0 + 2 * idx + 1];
+	padding_l = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_PADDING0 + 2 * idx];
+	padding_r = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_PADDING0 + 2 * idx + 1];
 	merge = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_MERGE0 + idx];
 	ethdr = ovl_adaptor->ovl_adaptor_comp[OVL_ADAPTOR_ETHDR0];

@@ -160,10 +187,15 @@ void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int idx,
 	rdma_config.color_encoding = pending->color_encoding;
 	mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);

+	if (padding_l)
+		mtk_padding_config(padding_l, cmdq_pkt);
+
 	if (use_dual_pipe) {
 		rdma_config.x_left = l_w;
 		rdma_config.width = r_w;
 		mtk_mdp_rdma_config(rdma_r, &rdma_config, cmdq_pkt);
+		if (padding_r)
+			mtk_padding_config(padding_r, cmdq_pkt);
 	}

 	mtk_merge_start_cmdq(merge, cmdq_pkt);
@@ -354,6 +386,7 @@ static int ovl_adaptor_comp_get_id(struct device *dev, struct device_node *node,
 }

 static const struct of_device_id mtk_ovl_adaptor_comp_dt_ids[] = {
+	{ .compatible = "mediatek,mt8188-padding", .data = (void *)OVL_ADAPTOR_TYPE_PADDING },
 	{ .compatible = "mediatek,mt8195-disp-ethdr", .data = (void *)OVL_ADAPTOR_TYPE_ETHDR },
 	{ .compatible = "mediatek,mt8195-disp-merge", .data = (void *)OVL_ADAPTOR_TYPE_MERGE },
 	{ .compatible = "mediatek,mt8195-vdo1-rdma", .data = (void *)OVL_ADAPTOR_TYPE_MDP_RDMA },
--
2.18.0