drm/exynos: gsc: Use real buffer width for configuring the hardware
authorMarek Szyprowski <m.szyprowski@samsung.com>
Thu, 7 Jun 2018 11:06:10 +0000 (13:06 +0200)
committerInki Dae <inki.dae@samsung.com>
Fri, 29 Jun 2018 09:02:56 +0000 (18:02 +0900)
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>
drivers/gpu/drm/exynos/exynos_drm_gsc.c

index 35ac667..8af7f16 100644 (file)
@@ -577,7 +577,7 @@ static void gsc_src_set_size(struct gsc_context *ctx,
        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_context *ctx,
        /* 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);