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drm/exynos: gsc: fix wrong bitwise operation for swap detection

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The bits for rotation are not used as exclusively. So GSC_IN_ROT_270 can
not be used for swap detection. The definition of it is same with
GSC_IN_ROT_MASK. It is enough to check GSC_IN_ROT_90 bit is set or not to
check whether width / height size swapping is needed.

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 19:09:24 +09:00 committed by Inki Dae
parent bdce3e7c72
commit f2d016011c
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/exynos/exynos_drm_gsc.c
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@ -593,8 +593,7 @@ static int gsc_src_set_transf(struct device *dev,
gsc_write(cfg, GSC_IN_CON);
ctx->rotation = cfg &
(GSC_IN_ROT_90 | GSC_IN_ROT_270) ? 1 : 0;
ctx->rotation = (cfg & GSC_IN_ROT_90) ? 1 : 0;
*swap = ctx->rotation;
return 0;
@ -857,8 +856,7 @@ static int gsc_dst_set_transf(struct device *dev,
gsc_write(cfg, GSC_IN_CON);
ctx->rotation = cfg &
(GSC_IN_ROT_90 | GSC_IN_ROT_270) ? 1 : 0;
ctx->rotation = (cfg & GSC_IN_ROT_90) ? 1 : 0;
*swap = ctx->rotation;
return 0;