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Message-Id: <20180823074920.926159195@linuxfoundation.org>
Date:   Thu, 23 Aug 2018 09:53:10 +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,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Inki Dae <inki.dae@...sung.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.4 34/79] drm/exynos: gsc: Fix support for NV16/61, YUV420/YVU420 and YUV422 modes

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Marek Szyprowski <m.szyprowski@...sung.com>

[ Upstream commit dd209ef809080ced903e7747ee3ef640c923a1d2 ]

Fix following issues related to planar YUV pixel format configuration:
- NV16/61 modes were incorrectly programmed as NV12/21,
- YVU420 was programmed as YUV420 on source,
- YVU420 and YUV422 were programmed as YUV420 on output.

Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
Signed-off-by: Inki Dae <inki.dae@...sung.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/exynos/exynos_drm_gsc.c |   29 ++++++++++++++++++++---------
 drivers/gpu/drm/exynos/regs-gsc.h       |    1 +
 2 files changed, 21 insertions(+), 9 deletions(-)

--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -526,21 +526,25 @@ static int gsc_src_set_fmt(struct device
 			GSC_IN_CHROMA_ORDER_CRCB);
 		break;
 	case DRM_FORMAT_NV21:
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV61:
-		cfg |= (GSC_IN_CHROMA_ORDER_CRCB |
-			GSC_IN_YUV420_2P);
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV422_2P);
 		break;
 	case DRM_FORMAT_YUV422:
 		cfg |= GSC_IN_YUV422_3P;
 		break;
 	case DRM_FORMAT_YUV420:
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV420_3P);
+		break;
 	case DRM_FORMAT_YVU420:
-		cfg |= GSC_IN_YUV420_3P;
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV420_3P);
 		break;
 	case DRM_FORMAT_NV12:
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV16:
-		cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
-			GSC_IN_YUV420_2P);
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV422_2P);
 		break;
 	default:
 		dev_err(ippdrv->dev, "invalid target yuv order 0x%x.\n", fmt);
@@ -800,18 +804,25 @@ static int gsc_dst_set_fmt(struct device
 			GSC_OUT_CHROMA_ORDER_CRCB);
 		break;
 	case DRM_FORMAT_NV21:
-	case DRM_FORMAT_NV61:
 		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_2P);
 		break;
+	case DRM_FORMAT_NV61:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV422_2P);
+		break;
 	case DRM_FORMAT_YUV422:
+		cfg |= GSC_OUT_YUV422_3P;
+		break;
 	case DRM_FORMAT_YUV420:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV420_3P);
+		break;
 	case DRM_FORMAT_YVU420:
-		cfg |= GSC_OUT_YUV420_3P;
+		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_3P);
 		break;
 	case DRM_FORMAT_NV12:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV16:
-		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
-			GSC_OUT_YUV420_2P);
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV422_2P);
 		break;
 	default:
 		dev_err(ippdrv->dev, "invalid target yuv order 0x%x.\n", fmt);
--- a/drivers/gpu/drm/exynos/regs-gsc.h
+++ b/drivers/gpu/drm/exynos/regs-gsc.h
@@ -138,6 +138,7 @@
 #define GSC_OUT_YUV420_3P		(3 << 4)
 #define GSC_OUT_YUV422_1P		(4 << 4)
 #define GSC_OUT_YUV422_2P		(5 << 4)
+#define GSC_OUT_YUV422_3P		(6 << 4)
 #define GSC_OUT_YUV444			(7 << 4)
 #define GSC_OUT_TILE_TYPE_MASK		(1 << 2)
 #define GSC_OUT_TILE_C_16x8		(0 << 2)


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