From 00780f3b1a10d1be006b920505faf1d02f76f0e4 Mon Sep 17 00:00:00 2001
From: Andrzej Hajda <a.hajda@samsung.com>
Date: Thu, 11 Feb 2016 12:25:04 +0100
Subject: [PATCH] drm/exynos/decon: fix disable clocks order
Decon requires that clocks should be disabled in reverse order. Otherwise
system hangs.
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 107224a61eb39..162ab93e99cb5 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -580,9 +580,9 @@ static irqreturn_t decon_irq_handler(int irq, void *dev_id)
static int exynos5433_decon_suspend(struct device *dev)
{
struct decon_context *ctx = dev_get_drvdata(dev);
- int i;
+ int i = ARRAY_SIZE(decon_clks_name);
- for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++)
+ while (--i >= 0)
clk_disable_unprepare(ctx->clks[i]);
return 0;