linux-kernel - [PATCH v2 6/7] drm/ingenic: Add support for 30-bit modes

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Message-Id: <20200926170501.1109197-7-paul@crapouillou.net>
Date:   Sat, 26 Sep 2020 19:05:00 +0200
From:   Paul Cercueil <paul@...pouillou.net>
To:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>
Cc:     Sam Ravnborg <sam@...nborg.org>, od@...c.me,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>
Subject: [PATCH v2 6/7] drm/ingenic: Add support for 30-bit modes

Starting from the JZ4760 SoC, the primary and overlay planes support
30-bit pixel modes (10 bits per color component). Add support for these
in the ingenic-drm driver.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Acked-by: Sam Ravnborg <sam@...nborg.org>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 8 ++++++++
 drivers/gpu/drm/ingenic/ingenic-drm.h     | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 48e88827f332..9e3122b42820 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -461,6 +461,9 @@ void ingenic_drm_plane_config(struct device *dev,
 		case DRM_FORMAT_XRGB8888:
 			ctrl |= JZ_LCD_OSDCTRL_BPP_18_24;
 			break;
+		case DRM_FORMAT_XRGB2101010:
+			ctrl |= JZ_LCD_OSDCTRL_BPP_30;
+			break;
 		}
 
 		regmap_update_bits(priv->map, JZ_REG_LCD_OSDCTRL,
@@ -479,6 +482,9 @@ void ingenic_drm_plane_config(struct device *dev,
 		case DRM_FORMAT_XRGB8888:
 			ctrl |= JZ_LCD_CTRL_BPP_18_24;
 			break;
+		case DRM_FORMAT_XRGB2101010:
+			ctrl |= JZ_LCD_CTRL_BPP_30;
+			break;
 		}
 
 		regmap_update_bits(priv->map, JZ_REG_LCD_CTRL,
@@ -1273,6 +1279,7 @@ static const u32 jz4770_formats_f1[] = {
 	DRM_FORMAT_XRGB1555,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XRGB2101010,
 };
 
 static const u32 jz4770_formats_f0[] = {
@@ -1280,6 +1287,7 @@ static const u32 jz4770_formats_f0[] = {
 	DRM_FORMAT_XRGB1555,
 	DRM_FORMAT_RGB565,
 	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XRGB2101010,
 };
 
 static const struct jz_soc_info jz4740_soc_info = {
diff --git a/drivers/gpu/drm/ingenic/ingenic-drm.h b/drivers/gpu/drm/ingenic/ingenic-drm.h
index df99f0f75d39..f05e18e6b6fa 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_30			0x7
 #define JZ_LCD_CTRL_BPP_MASK			(JZ_LCD_CTRL_RGB555 | 0x7)
 
 #define JZ_LCD_CMD_SOF_IRQ			BIT(31)
-- 
2.28.0