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[6/7] drm/exynos/decon5433: reset decon on start

Message ID 1458738918-32054-7-git-send-email-a.hajda@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Andrzej Hajda March 23, 2016, 1:15 p.m. UTC 
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>
---
 drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 7fec656..120efd8 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -400,6 +400,8 @@  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);