[PATCH v4] drm/mediatek: Add support for AR30 and BA30

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Add support for AR30 and BA30 pixel formats to the Mediatek DRM driver.

Tested using "modetest -P" on an MT8195.

Signed-off-by: Justin Green <greenjustin@xxxxxxxxxxxx>
---
v2:
 * Rebase and resolve merge conflicts with the AFBC patch.
v3:
 * Moved 10-bit support detection to mtk_disk_ovl.c
v4:
 * Moved formats to mtk_disp_ovl.c and mtk_disp_rdma.c

 drivers/gpu/drm/mediatek/mtk_disp_drv.h     |  4 ++
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c     | 75 +++++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_disp_rdma.c    | 27 ++++++++
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c     |  4 +-
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  4 ++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 20 ++++++
 drivers/gpu/drm/mediatek/mtk_drm_plane.c    | 28 +++-----
 drivers/gpu/drm/mediatek/mtk_drm_plane.h    |  3 +-
 8 files changed, 146 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 33e61a136bbc..c292022b8270 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -96,6 +96,8 @@ void mtk_ovl_register_vblank_cb(struct device *dev,
 void mtk_ovl_unregister_vblank_cb(struct device *dev);
 void mtk_ovl_enable_vblank(struct device *dev);
 void mtk_ovl_disable_vblank(struct device *dev);
+const u32* mtk_ovl_get_formats(struct device *dev);
+size_t mtk_ovl_get_num_formats(struct device *dev);
 
 void mtk_rdma_bypass_shadow(struct device *dev);
 int mtk_rdma_clk_enable(struct device *dev);
@@ -122,4 +124,6 @@ void mtk_mdp_rdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt);
 void mtk_mdp_rdma_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt);
 void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
 			 struct cmdq_pkt *cmdq_pkt);
+const u32* mtk_rdma_get_formats(struct device *dev);
+size_t mtk_rdma_get_num_formats(struct device *dev);
 #endif
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 84daeaffab6a..781cd18f94ba 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -41,6 +41,7 @@
 #define DISP_REG_OVL_RDMA_CTRL(n)		(0x00c0 + 0x20 * (n))
 #define DISP_REG_OVL_RDMA_GMC(n)		(0x00c8 + 0x20 * (n))
 #define DISP_REG_OVL_ADDR_MT2701		0x0040
+#define DISP_REG_OVL_CLRFMT_EXT			0x02D0
 #define DISP_REG_OVL_ADDR_MT8173		0x0f40
 #define DISP_REG_OVL_ADDR(ovl, n)		((ovl)->data->addr + 0x20 * (n))
 #define DISP_REG_OVL_HDR_ADDR(ovl, n)		((ovl)->data->addr + 0x20 * (n) + 0x04)
@@ -61,11 +62,45 @@
 					0 : OVL_CON_CLRFMT_RGB)
 #define OVL_CON_CLRFMT_RGB888(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
 					OVL_CON_CLRFMT_RGB : 0)
+#define OVL_CON_CLRFMT_BIT_DEPTH_MASK(ovl)	(0xFF << 4 * (ovl))
+#define OVL_CON_CLRFMT_BIT_DEPTH(depth, ovl)	(depth << 4 * (ovl))
+#define OVL_CON_CLRFMT_8_BIT			0x00
+#define OVL_CON_CLRFMT_10_BIT			0x01
 #define	OVL_CON_AEN		BIT(8)
 #define	OVL_CON_ALPHA		0xff
 #define	OVL_CON_VIRT_FLIP	BIT(9)
 #define	OVL_CON_HORZ_FLIP	BIT(10)
 
+static const u32 formats_mt8173[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGB888,
+	DRM_FORMAT_BGR888,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
+};
+
+static const u32 formats_mt8195[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_ARGB2101010,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_BGRA1010102,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGB888,
+	DRM_FORMAT_BGR888,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
+};
+
 struct mtk_disp_ovl_data {
 	unsigned int addr;
 	unsigned int gmc_bits;
@@ -73,6 +108,7 @@ struct mtk_disp_ovl_data {
 	bool fmt_rgb565_is_0;
 	bool smi_id_en;
 	bool supports_afbc;
+	bool supports_10bit;
 };
 
 /*
@@ -188,6 +224,26 @@ static void mtk_ovl_set_afbc(struct mtk_disp_ovl *ovl, struct cmdq_pkt *cmdq_pkt
 			   DISP_REG_OVL_DATAPATH_CON, OVL_LAYER_AFBC_EN(idx));
 }
 
+static void mtk_ovl_set_bit_depth(struct device *dev, int idx, u32 format,
+				  struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+	unsigned int reg;
+	unsigned int bit_depth = OVL_CON_CLRFMT_8_BIT;
+
+	reg = readl(ovl->regs + DISP_REG_OVL_CLRFMT_EXT);
+	reg &= ~OVL_CON_CLRFMT_BIT_DEPTH_MASK(idx);
+
+	if (format == DRM_FORMAT_RGBA1010102 ||
+	    format == DRM_FORMAT_BGRA1010102 ||
+	    format == DRM_FORMAT_ARGB2101010)
+		bit_depth = OVL_CON_CLRFMT_10_BIT;
+
+	reg |= OVL_CON_CLRFMT_BIT_DEPTH(bit_depth, idx);
+
+	mtk_ddp_write(cmdq_pkt, reg, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_CLRFMT_EXT);
+}
+
 void mtk_ovl_config(struct device *dev, unsigned int w,
 		    unsigned int h, unsigned int vrefresh,
 		    unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
@@ -216,6 +272,21 @@ unsigned int mtk_ovl_supported_rotations(struct device *dev)
 	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
 }
 
+const u32* mtk_ovl_get_formats(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	return ovl->data->supports_10bit ? formats_mt8195 : formats_mt8173;
+}
+
+size_t mtk_ovl_get_num_formats(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	return ovl->data->supports_10bit ? ARRAY_SIZE(formats_mt8195)
+		: ARRAY_SIZE(formats_mt8173);
+}
+
 int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
 			struct mtk_plane_state *mtk_state)
 {
@@ -302,9 +373,11 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
 		return OVL_CON_CLRFMT_ARGB8888;
 	case DRM_FORMAT_BGRX8888:
 	case DRM_FORMAT_BGRA8888:
+	case DRM_FORMAT_BGRA1010102:
 		return OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SWAP;
 	case DRM_FORMAT_XRGB8888:
 	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ARGB2101010:
 		return OVL_CON_CLRFMT_RGBA8888;
 	case DRM_FORMAT_XBGR8888:
 	case DRM_FORMAT_ABGR8888:
@@ -388,6 +461,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
 				      &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_PITCH_MSB(idx));
 	}
 
+	mtk_ovl_set_bit_depth(dev, idx, fmt, cmdq_pkt);
 	mtk_ovl_layer_on(dev, idx, cmdq_pkt);
 }
 
@@ -541,6 +615,7 @@ static const struct mtk_disp_ovl_data mt8195_ovl_driver_data = {
 	.fmt_rgb565_is_0 = true,
 	.smi_id_en = true,
 	.supports_afbc = true,
+	.supports_10bit = true,
 };
 
 static const struct of_device_id mtk_disp_ovl_driver_dt_match[] = {
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
index 0ec2e4049e07..fb38e54601df 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -54,8 +54,23 @@
 
 #define RDMA_MEM_GMC				0x40402020
 
+static const u32 formats_mt8173[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGB888,
+	DRM_FORMAT_BGR888,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
+};
+
 struct mtk_disp_rdma_data {
 	unsigned int fifo_size;
+	bool supports_10bit;
 };
 
 /*
@@ -262,6 +277,17 @@ void mtk_rdma_layer_config(struct device *dev, unsigned int idx,
 
 }
 
+// TODO: Add support for 10 bit mode.
+const u32* mtk_rdma_get_formats(struct device *dev)
+{
+	return formats_mt8173;
+}
+
+size_t mtk_rdma_get_num_formats(struct device *dev)
+{
+	return ARRAY_SIZE(formats_mt8173);
+}
+
 static int mtk_disp_rdma_bind(struct device *dev, struct device *master,
 			      void *data)
 {
@@ -372,6 +398,7 @@ static const struct mtk_disp_rdma_data mt8183_rdma_driver_data = {
 
 static const struct mtk_disp_rdma_data mt8195_rdma_driver_data = {
 	.fifo_size = 1920,
+	.supports_10bit = true,
 };
 
 static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 112615817dcb..2ba01c484228 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -856,7 +856,9 @@ static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_dev,
 				BIT(pipe),
 				mtk_drm_crtc_plane_type(mtk_crtc->layer_nr,
 							num_planes),
-				mtk_ddp_comp_supported_rotations(comp));
+				mtk_ddp_comp_supported_rotations(comp),
+				mtk_ddp_comp_get_formats(comp),
+				mtk_ddp_comp_get_num_formats(comp));
 		if (ret)
 			return ret;
 
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 6b6d5335c834..4a4c1928f83d 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -359,6 +359,8 @@ static const struct mtk_ddp_comp_funcs ddp_ovl = {
 	.layer_config = mtk_ovl_layer_config,
 	.bgclr_in_on = mtk_ovl_bgclr_in_on,
 	.bgclr_in_off = mtk_ovl_bgclr_in_off,
+	.get_formats = mtk_ovl_get_formats,
+	.get_num_formats = mtk_ovl_get_num_formats,
 };
 
 static const struct mtk_ddp_comp_funcs ddp_postmask = {
@@ -381,6 +383,8 @@ static const struct mtk_ddp_comp_funcs ddp_rdma = {
 	.disable_vblank = mtk_rdma_disable_vblank,
 	.layer_nr = mtk_rdma_layer_nr,
 	.layer_config = mtk_rdma_layer_config,
+	.get_formats = mtk_rdma_get_formats,
+	.get_num_formats = mtk_rdma_get_num_formats,
 };
 
 static const struct mtk_ddp_comp_funcs ddp_ufoe = {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 2d0052c23dcb..c015b087bac6 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -71,6 +71,8 @@ struct mtk_ddp_comp_funcs {
 	void (*bgclr_in_off)(struct device *dev);
 	void (*ctm_set)(struct device *dev,
 			struct drm_crtc_state *state);
+	const u32* (*get_formats)(struct device *dev);
+	size_t (*get_num_formats)(struct device *dev);
 };
 
 struct mtk_ddp_comp {
@@ -151,6 +153,24 @@ unsigned int mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
 	return 0;
 }
 
+static inline
+const u32* mtk_ddp_comp_get_formats(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->get_formats)
+		return comp->funcs->get_formats(comp->dev);
+
+	return NULL;
+}
+
+static inline
+size_t mtk_ddp_comp_get_num_formats(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->get_num_formats)
+		return comp->funcs->get_num_formats(comp->dev);
+
+        return 0;
+}
+
 static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
 {
 	if (comp->funcs && comp->funcs->layer_nr)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index d54fbf34b000..fe9ac670f1e9 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -19,20 +19,6 @@
 #include "mtk_drm_gem.h"
 #include "mtk_drm_plane.h"
 
-static const u32 formats[] = {
-	DRM_FORMAT_XRGB8888,
-	DRM_FORMAT_ARGB8888,
-	DRM_FORMAT_BGRX8888,
-	DRM_FORMAT_BGRA8888,
-	DRM_FORMAT_ABGR8888,
-	DRM_FORMAT_XBGR8888,
-	DRM_FORMAT_RGB888,
-	DRM_FORMAT_BGR888,
-	DRM_FORMAT_RGB565,
-	DRM_FORMAT_UYVY,
-	DRM_FORMAT_YUYV,
-};
-
 static const u64 modifiers[] = {
 	DRM_FORMAT_MOD_LINEAR,
 	DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
@@ -315,13 +301,21 @@ static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
 
 int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
 		   unsigned long possible_crtcs, enum drm_plane_type type,
-		   unsigned int supported_rotations)
+		   unsigned int supported_rotations, const u32* formats,
+		   size_t num_formats)
 {
 	int err;
 
+	if (!formats || !num_formats) {
+		DRM_ERROR("no pixel formats for plane\n");
+		return -EINVAL;
+	}
+
 	err = drm_universal_plane_init(dev, plane, possible_crtcs,
-				       &mtk_plane_funcs, formats,
-				       ARRAY_SIZE(formats), modifiers, type, NULL);
+				       &mtk_plane_funcs,
+				       formats, num_formats,
+				       modifiers, type, NULL);
+
 	if (err) {
 		DRM_ERROR("failed to initialize plane\n");
 		return err;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.h b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
index 8f39011cdbfc..1740ccdeabce 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
@@ -48,6 +48,7 @@ to_mtk_plane_state(struct drm_plane_state *state)
 
 int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
 		   unsigned long possible_crtcs, enum drm_plane_type type,
-		   unsigned int supported_rotations);
+		   unsigned int supported_rotations, const u32* formats,
+		   size_t num_formats);
 
 #endif
-- 
2.39.1.456.gfc5497dd1b-goog




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