| Message ID | 1442994115-20167-1-git-send-email-jy0922.shim@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
2015-09-23 16:41 GMT+09:00 Joonyoung Shim <jy0922.shim@samsung.com>: > > 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> > Cc: <stable@vger.kernel.org> # v4.2 > Reviewed-by: Javier Martinez Canillas <javier@osg.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(-) Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Best regards, Krzysztof
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>; };
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> Cc: <stable@vger.kernel.org> # v4.2 Reviewed-by: Javier Martinez Canillas <javier@osg.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(-)