[PATCH v2 7/7] drm/ingenic: Add support for 24-bit modes

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Starting from the JZ4725B SoC, the primary and overlay planes support
24-bit pixel modes (8 bits per color component, without dummy byte).
Add support for these in the ingenic-drm driver.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 8 ++++++++
 drivers/gpu/drm/ingenic/ingenic-drm.h     | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 9e3122b42820..c2b63533ed18 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -458,6 +458,9 @@ void ingenic_drm_plane_config(struct device *dev,
 		case DRM_FORMAT_RGB565:
 			ctrl |= JZ_LCD_OSDCTRL_BPP_15_16;
 			break;
+		case DRM_FORMAT_RGB888:
+			ctrl |= JZ_LCD_OSDCTRL_BPP_24_COMP;
+			break;
 		case DRM_FORMAT_XRGB8888:
 			ctrl |= JZ_LCD_OSDCTRL_BPP_18_24;
 			break;
@@ -479,6 +482,9 @@ void ingenic_drm_plane_config(struct device *dev,
 		case DRM_FORMAT_RGB565:
 			ctrl |= JZ_LCD_CTRL_BPP_15_16;
 			break;
+		case DRM_FORMAT_RGB888:
+			ctrl |= JZ_LCD_CTRL_BPP_24_COMP;
+			break;
 		case DRM_FORMAT_XRGB8888:
 			ctrl |= JZ_LCD_CTRL_BPP_18_24;
 			break;
@@ -1278,6 +1284,7 @@ static const u32 jz4725b_formats_f0[] = {
 static const u32 jz4770_formats_f1[] = {
 	DRM_FORMAT_XRGB1555,
 	DRM_FORMAT_RGB565,
+	DRM_FORMAT_RGB888,
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_XRGB2101010,
 };
@@ -1286,6 +1293,7 @@ static const u32 jz4770_formats_f0[] = {
 	DRM_FORMAT_C8,
 	DRM_FORMAT_XRGB1555,
 	DRM_FORMAT_RGB565,
+	DRM_FORMAT_RGB888,
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_XRGB2101010,
 };
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.h b/drivers/gpu/drm/ingenic/ingenic-drm.h
index f05e18e6b6fa..ee3a892c0383 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm.h
+++ b/drivers/gpu/drm/ingenic/ingenic-drm.h
@@ -124,6 +124,7 @@
 #define JZ_LCD_CTRL_BPP_8			0x3
 #define JZ_LCD_CTRL_BPP_15_16			0x4
 #define JZ_LCD_CTRL_BPP_18_24			0x5
+#define JZ_LCD_CTRL_BPP_24_COMP			0x6
 #define JZ_LCD_CTRL_BPP_30			0x7
 #define JZ_LCD_CTRL_BPP_MASK			(JZ_LCD_CTRL_RGB555 | 0x7)
 
@@ -146,6 +147,7 @@
 #define JZ_LCD_OSDCTRL_CHANGE			BIT(3)
 #define JZ_LCD_OSDCTRL_BPP_15_16		0x4
 #define JZ_LCD_OSDCTRL_BPP_18_24		0x5
+#define JZ_LCD_OSDCTRL_BPP_24_COMP		0x6
 #define JZ_LCD_OSDCTRL_BPP_30			0x7
 #define JZ_LCD_OSDCTRL_BPP_MASK			(JZ_LCD_OSDCTRL_RGB555 | 0x7)
 
-- 
2.28.0

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