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drm/exynos/decon5433: reset decon on start 

Resetting IP at starting ensures that DECON will be in known state
regardless of changes by bootloader.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
hifive-unleashed-5.1
Andrzej Hajda 2016-03-23 14:15:17 +01:00 committed by Inki Dae
parent 92ead494f6
commit e87b3c6248
1 changed files with 2 additions and 0 deletions
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drivers/gpu/drm/exynos/exynos5433_drm_decon.c
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@ -396,6 +396,8 @@ static void decon_enable(struct exynos_drm_crtc *crtc)
set_bit(BIT_CLKS_ENABLED, &ctx->flags);
decon_swreset(ctx);
/* if vblank was enabled status, enable it again. */
if (test_and_clear_bit(BIT_IRQS_ENABLED, &ctx->flags))
decon_enable_vblank(ctx->crtc);