Patch "ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420" has been added to the 4.2-stable tree

Patch "ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

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

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm-dts-fix-wrong-clock-binding-for-sysmmu_fimd1_1-on-exynos5420.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From c7d2ecd9f64c351cb4d551f1f472d0fc09c3cae8 Mon Sep 17 00:00:00 2001
From: Joonyoung Shim <jy0922.shim@samsung.com>
Date: Wed, 23 Sep 2015 16:41:55 +0900
Subject: ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420

From: Joonyoung Shim <jy0922.shim@samsung.com>

commit c7d2ecd9f64c351cb4d551f1f472d0fc09c3cae8 upstream.

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.

Fixes: b70045167815 ("ARM: dts: add sysmmu nodes for exynos5420")
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm/boot/dts/exynos5420.dtsi |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -1118,7 +1118,7 @@
 		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>;
 		power-domains = <&disp_pd>;
 		#iommu-cells = <0>;
 	};


Patches currently in stable-queue which might be from jy0922.shim@samsung.com are

queue-4.2/arm-dts-fix-wrong-clock-binding-for-sysmmu_fimd1_1-on-exynos5420.patch