[RESEND PATCH] drm/mediatek: Add support for AR30 and BA30
Justin Green
greenjustin at chromium.org
Mon Jan 9 18:26:13 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>
---
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 29 ++++++++++++++++++
drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 19 +++++++++++-
drivers/gpu/drm/mediatek/mtk_drm_plane.c | 38 ++++++++++++++++++++----
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 002b0f6cae1a..be1dfc82aab2 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -38,6 +38,7 @@
#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))
@@ -56,6 +57,10 @@
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)
@@ -175,6 +180,26 @@ void mtk_ovl_stop(struct device *dev)
}
+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)
@@ -289,9 +314,11 @@ 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:
@@ -346,6 +373,8 @@ void mtk_ovl_layer_config(struct device *dev,
unsigned int idx,
mtk_ddp_write_relaxed(cmdq_pkt, addr, &ovl->cmdq_reg, ovl->regs,
DISP_REG_OVL_ADDR(ovl, 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 42cc7052b050..b2b944344c7a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -843,6 +843,21 @@ 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)
@@ -850,6 +865,7 @@ 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,
@@ -857,7 +873,8 @@ 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 5c0d9ce69931..2726344b5696 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -12,6 +12,7 @@
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_plane_helper.h>
+#include <linux/of.h>
#include "mtk_drm_crtc.h"
#include "mtk_drm_ddp_comp.h"
@@ -19,7 +20,7 @@
#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,
@@ -33,6 +34,22 @@ static const u32 formats[] = {
DRM_FORMAT_YUYV,
};
+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;
@@ -248,13 +265,24 @@ 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), NULL, 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),
+ NULL, type, NULL);
+ } else {
+ err = drm_universal_plane_init(dev, plane, possible_crtcs,
+ &mtk_plane_funcs,
+ default_formats,
+ ARRAY_SIZE(default_formats),
+ NULL, 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 2d5ec66e3df1..49737153f0a6 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
@@ -40,6 +40,6 @@ 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
--
2.38.1.431.g37b22c650d-goog
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