From 5149705dacfb24406634d2060880cd5605772540 Mon Sep 17 00:00:00 2001 From: Hyungwon Hwang Date: Wed, 1 Jul 2015 19:09:25 +0900 Subject: [PATCH] drm/exynos: gsc: Handles the combination of rotation and flip The unique results of all the combination of rotation and flip can be represented by just 8 states. This patch handles all the combination correctly. Signed-off-by: Hyungwon Hwang Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_gsc.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c index f1c6b76c127f..808a0a013780 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c @@ -582,9 +582,17 @@ static int gsc_src_set_transf(struct device *dev, break; case EXYNOS_DRM_DEGREE_180: cfg |= GSC_IN_ROT_180; + if (flip & EXYNOS_DRM_FLIP_VERTICAL) + cfg &= ~GSC_IN_ROT_XFLIP; + if (flip & EXYNOS_DRM_FLIP_HORIZONTAL) + cfg &= ~GSC_IN_ROT_YFLIP; break; case EXYNOS_DRM_DEGREE_270: cfg |= GSC_IN_ROT_270; + if (flip & EXYNOS_DRM_FLIP_VERTICAL) + cfg &= ~GSC_IN_ROT_XFLIP; + if (flip & EXYNOS_DRM_FLIP_HORIZONTAL) + cfg &= ~GSC_IN_ROT_YFLIP; break; default: dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree); @@ -845,9 +853,17 @@ static int gsc_dst_set_transf(struct device *dev, break; case EXYNOS_DRM_DEGREE_180: cfg |= GSC_IN_ROT_180; + if (flip & EXYNOS_DRM_FLIP_VERTICAL) + cfg &= ~GSC_IN_ROT_XFLIP; + if (flip & EXYNOS_DRM_FLIP_HORIZONTAL) + cfg &= ~GSC_IN_ROT_YFLIP; break; case EXYNOS_DRM_DEGREE_270: cfg |= GSC_IN_ROT_270; + if (flip & EXYNOS_DRM_FLIP_VERTICAL) + cfg &= ~GSC_IN_ROT_XFLIP; + if (flip & EXYNOS_DRM_FLIP_HORIZONTAL) + cfg &= ~GSC_IN_ROT_YFLIP; break; default: dev_err(ippdrv->dev, "inavlid degree value %d.\n", degree); -- 2.20.1