[PATCH v2] drm/mediatek: Add support for AR30 and BA30
Justin Green
greenjustin at chromium.org
Tue Jan 10 20:47:42 UTC 2023
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 at chromium.org>
---
v2:
* Rebase and resolve merge conflicts with the AFBC patch.
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 28 +++++++++++++++++
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 19 +++++++++++-
drivers/gpu/drm/mediatek/mtk_drm_plane.c | 39 +++++++++++++++++++++---
drivers/gpu/drm/mediatek/mtk_drm_plane.h | 2 +-
4 files changed, 81 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 84daeaffab6a..667ae57c8754 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)
@@ -61,6 +62,10 @@
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)
@@ -188,6 +193,26 @@ 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)
@@ -302,9 +327,11 @@ 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 +415,7 @@ 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);
}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 112615817dcb..d50379c97c4b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -842,6 +842,21 @@ enum drm_plane_type mtk_drm_crtc_plane_type(unsigned int plane_idx,
}
+static const char *ovls_with_10bit_cap[] = {
+ "mediatek,mt8195-disp-ovl",
+};
+
+static bool is_10bit_cap_device(void)
+{
+ for (int i = 0; i < ARRAY_SIZE(ovls_with_10bit_cap); i++) {
+ if (of_find_compatible_node(NULL, NULL,
+ ovls_with_10bit_cap[i]))
+ return true;
+ }
+
+ return false;
+}
+
static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_dev,
struct mtk_drm_crtc *mtk_crtc,
int comp_idx, int pipe)
@@ -849,6 +864,7 @@ static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_dev,
int num_planes = mtk_drm_crtc_num_comp_planes(mtk_crtc, comp_idx);
struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[comp_idx];
int i, ret;
+ bool supports_10bit = is_10bit_cap_device();
for (i = 0; i < num_planes; i++) {
ret = mtk_plane_init(drm_dev,
@@ -856,7 +872,8 @@ 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),
+ supports_10bit);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index d54fbf34b000..7fe5c47b4d50 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -12,6 +12,8 @@
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_atomic_helper.h>
#include <linux/align.h>
+#include <drm/drm_plane_helper.h>
+#include <linux/of.h>
#include "mtk_drm_crtc.h"
#include "mtk_drm_ddp_comp.h"
@@ -19,7 +21,7 @@
#include "mtk_drm_gem.h"
#include "mtk_drm_plane.h"
-static const u32 formats[] = {
+static const u32 default_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_BGRX8888,
@@ -41,6 +43,22 @@ static const u64 modifiers[] = {
DRM_FORMAT_MOD_INVALID,
};
+static const u32 formats_with_10bit_cap[] = {
+ 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,
+};
+
static void mtk_plane_reset(struct drm_plane *plane)
{
struct mtk_plane_state *state;
@@ -315,13 +333,24 @@ 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, bool supports_10bit)
{
int err;
- err = drm_universal_plane_init(dev, plane, possible_crtcs,
- &mtk_plane_funcs, formats,
- ARRAY_SIZE(formats), modifiers, type, NULL);
+ if (supports_10bit) {
+ err = drm_universal_plane_init(dev, plane, possible_crtcs,
+ &mtk_plane_funcs,
+ formats_with_10bit_cap,
+ ARRAY_SIZE(formats_with_10bit_cap),
+ modifiers, type, NULL);
+ } else {
+ err = drm_universal_plane_init(dev, plane, possible_crtcs,
+ &mtk_plane_funcs,
+ default_formats,
+ ARRAY_SIZE(default_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..d3e6f29a1e25 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
@@ -48,6 +48,6 @@ 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, bool supports_10bit);
#endif
--
2.39.0.314.g84b9a713c41-goog
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