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Commit 366dcad3 authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Inki Dae
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drm/exynos/decon5433: always do sw-trigger when vblanks enabled 



When vblanks are enabled userspace and/or kernel can expect vblank
interrupt at declared period of time. To generate vblank interrupt
image transfer must be triggered. This patch fixes vblank timeouts
in case of sw-trigger mode.

Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 2a6e4cd5

drivers/gpu/drm/exynos/exynos5433_drm_decon.c

+5 −1
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ static const char * const decon_clks_name[] = { 


enum decon_flag_bits {

	BIT_CLKS_ENABLED,

	BIT_IRQS_ENABLED,

	BIT_WIN_UPDATED,

	BIT_SUSPENDED

};
@@ -104,6 +105,7 @@ static int decon_enable_vblank(struct exynos_drm_crtc *crtc) 
		val |= VIDINTCON0_INTFRMEN | VIDINTCON0_FRAMESEL_FP;



	writel(val, ctx->addr + DECON_VIDINTCON0);

	set_bit(BIT_IRQS_ENABLED, &ctx->flags);



	return 0;

}
@@ -112,6 +114,7 @@ static void decon_disable_vblank(struct exynos_drm_crtc *crtc) 
{

	struct decon_context *ctx = crtc->ctx;



	clear_bit(BIT_IRQS_ENABLED, &ctx->flags);

	if (test_bit(BIT_SUSPENDED, &ctx->flags))

		return;
@@ -518,7 +521,8 @@ static void decon_te_irq_handler(struct exynos_drm_crtc *crtc) 
	    (ctx->out_type & I80_HW_TRG))

		return;



	if (test_and_clear_bit(BIT_WIN_UPDATED, &ctx->flags))

	if (test_and_clear_bit(BIT_WIN_UPDATED, &ctx->flags) ||

	    test_bit(BIT_IRQS_ENABLED, &ctx->flags))

		decon_set_bits(ctx, DECON_TRIGCON, TRIGCON_SWTRIGCMD, ~0);

}