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drm/exynos: gsc: Handles the combination of rotation and flip

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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 <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Hyungwon Hwang 2015-07-01 19:09:25 +09:00 committed by Inki Dae
parent 7b5102da0a
commit 5149705dac
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/drm/exynos/exynos_drm_gsc.c
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@ -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);