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Commit 5149705d authored by Hyungwon Hwang's avatar Hyungwon Hwang Committed by Inki Dae
Browse files

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: default avatarHyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 7b5102da

drivers/gpu/drm/exynos/exynos_drm_gsc.c

+16 −0
Original line number Diff line number Diff line
@@ -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);