From 00780f3b1a10d1be006b920505faf1d02f76f0e4 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda 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 Signed-off-by: Inki Dae --- 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;