[PATCH v2 8/9] drivers: clk: samsung: Fix m2m scaler clock on Exynos542x

Marek Szyprowski m.szyprowski at samsung.com
Fri Sep 29 07:32:53 UTC 2017


From: Andrzej Pietrasiewicz <andrzej.p at samsung.com>

TOP "aclk400_mscl" clock should be kept enabled all the time to allow
proper access to power management control for MSC power domain and
devices that are a part of it. This change is required for scaler to
work properly after domain power on/off sequence.

Fixes: 318fa46cc60d ("clk/samsung: exynos542x: mark some clocks as critical")
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
---
 drivers/clk/samsung/clk-exynos5420.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 25601967d1cd..038701a2af4c 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -998,7 +998,7 @@ static void __init exynos5420_clk_sleep_init(void) {}
 	GATE(0, "aclk400_isp", "mout_user_aclk400_isp",
 			GATE_BUS_TOP, 16, 0, 0),
 	GATE(0, "aclk400_mscl", "mout_user_aclk400_mscl",
-			GATE_BUS_TOP, 17, 0, 0),
+			GATE_BUS_TOP, 17, CLK_IS_CRITICAL, 0),
 	GATE(0, "aclk200_disp1", "mout_user_aclk200_disp1",
 			GATE_BUS_TOP, 18, CLK_IS_CRITICAL, 0),
 	GATE(CLK_SCLK_MPHY_IXTAL24, "sclk_mphy_ixtal24", "mphy_refclk_ixtal24",
-- 
1.9.1



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