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Message-Id: <20190918061226.059082737@linuxfoundation.org>
Date:   Wed, 18 Sep 2019 08:19:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>
Subject: [PATCH 4.19 27/50] drm/meson: Add support for XBGR8888 & ABGR8888 formats

From: Neil Armstrong <narmstrong@...libre.com>

commit 5ffff4415f9eeae834960226770963e2947e17eb upstream.

Add missing XBGR8888 & ABGR8888 formats variants from the primary plane.

Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Reviewed-by: Kevin Hilman <khilman@...libre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190429075238.7884-1-narmstrong@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/meson/meson_plane.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

--- a/drivers/gpu/drm/meson/meson_plane.c
+++ b/drivers/gpu/drm/meson/meson_plane.c
@@ -120,6 +120,13 @@ static void meson_plane_atomic_update(st
 		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
 					      OSD_COLOR_MATRIX_32_ARGB;
 		break;
+	case DRM_FORMAT_XBGR8888:
+		/* For XRGB, replace the pixel's alpha by 0xFF */
+		writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
+				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
+		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+					      OSD_COLOR_MATRIX_32_ABGR;
+		break;
 	case DRM_FORMAT_ARGB8888:
 		/* For ARGB, use the pixel's alpha */
 		writel_bits_relaxed(OSD_REPLACE_EN, 0,
@@ -127,6 +134,13 @@ static void meson_plane_atomic_update(st
 		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
 					      OSD_COLOR_MATRIX_32_ARGB;
 		break;
+	case DRM_FORMAT_ABGR8888:
+		/* For ARGB, use the pixel's alpha */
+		writel_bits_relaxed(OSD_REPLACE_EN, 0,
+				    priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
+		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
+					      OSD_COLOR_MATRIX_32_ABGR;
+		break;
 	case DRM_FORMAT_RGB888:
 		priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
 					      OSD_COLOR_MATRIX_24_RGB;
@@ -196,7 +210,9 @@ static const struct drm_plane_funcs meso
 
 static const uint32_t supported_drm_formats[] = {
 	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_ABGR8888,
 	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_XBGR8888,
 	DRM_FORMAT_RGB888,
 	DRM_FORMAT_RGB565,
 };


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