From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Thu, 7 Jun 2018 11:07:49 +0000 (+0200)
Subject: drm/exynos: decon5433: Fix WINCONx reset value
X-Git-Tag: v4.14.67~104
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8a9e8b683a7c8a3fb52fcaa692ffd704ba03f29d;p=platform%2Fkernel%2Flinux-exynos.git

drm/exynos: decon5433: Fix WINCONx reset value

[ Upstream commit 7b7aa62c05eac9789c208b946f515983a9255d8d ]

The only bits that should be preserved in decon_win_set_fmt() is
WINCONx_ENWIN_F. All other bits depends on the selected pixel formats and
are set by the mentioned function.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 8508f14..f905c21 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -261,7 +261,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
 	unsigned long val;
 
 	val = readl(ctx->addr + DECON_WINCONx(win));
-	val &= ~WINCONx_BPPMODE_MASK;
+	val &= WINCONx_ENWIN_F;
 
 	switch (fb->format->format) {
 	case DRM_FORMAT_XRGB1555: