From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Thu, 7 Jun 2018 13:06:10 +0200
Subject: drm/exynos: gsc: Use real buffer width for configuring the hardware
Git-commit: 4958a1c0c9c4a48d6ba9e2b184d93cab0dce68e1
Patch-mainline: v4.18-rc4
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
DMA hardware should respect buffer pitch, so use the width calculated from
the buffer pitch instead of the virtual one.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/exynos/exynos_drm_gsc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -577,7 +577,7 @@ static void gsc_src_set_size(struct gsc_
cfg &= ~(GSC_SRCIMG_HEIGHT_MASK |
GSC_SRCIMG_WIDTH_MASK);
- cfg |= (GSC_SRCIMG_WIDTH(buf->buf.width) |
+ cfg |= (GSC_SRCIMG_WIDTH(buf->buf.pitch[0] / buf->format->cpp[0]) |
GSC_SRCIMG_HEIGHT(buf->buf.height));
gsc_write(cfg, GSC_SRCIMG_SIZE);
@@ -868,7 +868,7 @@ static void gsc_dst_set_size(struct gsc_
/* original size */
cfg = gsc_read(GSC_DSTIMG_SIZE);
cfg &= ~(GSC_DSTIMG_HEIGHT_MASK | GSC_DSTIMG_WIDTH_MASK);
- cfg |= GSC_DSTIMG_WIDTH(buf->buf.width) |
+ cfg |= GSC_DSTIMG_WIDTH(buf->buf.pitch[0] / buf->format->cpp[0]) |
GSC_DSTIMG_HEIGHT(buf->buf.height);
gsc_write(cfg, GSC_DSTIMG_SIZE);