linux-kernel - [PATCH v2 12/17] drm/exynos/fimc: avoid clearing overflow bits

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Date:	Thu, 28 Aug 2014 11:07:36 +0200
From:	Andrzej Hajda <a.hajda@...sung.com>
To:	Inki Dae <inki.dae@...sung.com>
Cc:	Andrzej Hajda <a.hajda@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org (open list),
	linux-samsung-soc@...r.kernel.org (moderated list:ARM/S5P EXYNOS AR...)
Subject: [PATCH v2 12/17] drm/exynos/fimc: avoid clearing overflow bits

Overflow bits shall be cleared by H/W.

Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
Reviewed-by: Joonyoung Shim <jy0922.shim@...sung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_fimc.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
index 34367ff..6dc9c41 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c
@@ -341,9 +341,6 @@ static bool fimc_check_ovf(struct fimc_context *ctx)
 		fimc_set_bits(ctx, EXYNOS_CIWDOFST,
 			EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
 			EXYNOS_CIWDOFST_CLROVFICR);
-		fimc_clear_bits(ctx, EXYNOS_CIWDOFST,
-			EXYNOS_CIWDOFST_CLROVFIY | EXYNOS_CIWDOFST_CLROVFICB |
-			EXYNOS_CIWDOFST_CLROVFICR);
 
 		dev_err(ippdrv->dev, "occurred overflow at %d, status 0x%x.\n",
 			ctx->id, status);
-- 
1.9.1

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