[PATCH v2] ARM: dts: exynos5420: fix wrong clock binding for sysmmu_fimd1_1
Marek Szyprowski
m.szyprowski at samsung.com
Wed Sep 23 01:43:53 PDT 2015
Hello,
On 2015-09-23 09:41, Joonyoung Shim wrote:
> 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 at samsung.com>
> Cc: <stable at vger.kernel.org> # v4.2
> Reviewed-by: Javier Martinez Canillas <javier at osg.samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski at samsung.com>
> ---
> Changes for v2:
> - Update the commit message
> - Add Fixes: and Reviewed-by: tags
>
> arch/arm/boot/dts/exynos5420.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
> index df9aee9..1b3d6c7 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -1117,7 +1117,7 @@
> 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>;
> };
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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