From: Joonyoung Shim <jy0922.shim@samsung.com>
Date: Wed, 23 Sep 2015 07:41:55 +0000 (+0900)
Subject: ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
X-Git-Tag: submit/tizen/20160405.082219~58
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d5700ce0bef6e84ab3dcce882815ff2e272234ee;p=platform%2Fkernel%2Flinux-exynos.git

ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420

The sysmmu_fimd1_1 should bind the clock CLK_SMMU_FIMD1M1, not the clock
CLK_SMMU_FIMD1M0. CLK_SMMU_FIMD1M0 is a clock for the sysmmu_fimd1_0.

This wrong clock binding causes the problem that is blocked in iommu_map
function when IOMMU is enabled and exynos-drm driver tries to allocate
buffer via DMA mapping API on Odroid-XU3 board.

Change-Id: I030bbdad233446df59732a41260631dbdade0493
Fixes: b70045167815 ("ARM: dts: add sysmmu nodes for exynos5420")
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---

diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index bbd66ca7aa1f..0f06837100fc 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -1219,7 +1219,7 @@
 		interrupt-parent = <&combiner>;
 		interrupts = <3 0>;
 		clock-names = "sysmmu", "master";
-		clocks = <&clock CLK_SMMU_FIMD1M0>, <&clock CLK_FIMD1>;
+		clocks = <&clock CLK_SMMU_FIMD1M1>, <&clock CLK_FIMD1>;
 		samsung,power-domain = <&disp_pd>;
 		#iommu-cells = <0>;
 	};