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@xxxxxxxxxxxxxxx> know about it.
>From c7d2ecd9f64c351cb4d551f1f472d0fc09c3cae8 Mon Sep 17 00:00:00 2001
From: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
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@xxxxxxxxxxx>
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@xxxxxxxxxxx>
Reviewed-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
Acked-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxxx are
queue-4.2/arm-dts-fix-wrong-clock-binding-for-sysmmu_fimd1_1-on-exynos5420.patch
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