| Message ID | 20180306032113.22247-6-jeffy.chen@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 06/03/18 03:21, Jeffy Chen wrote: > Add clock property, since we are going to control clocks in rockchip > iommu driver. Reviewed-by: Robin Murphy <robin.murphy@arm.com> > Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > > Changes in v7: None > Changes in v6: > Fix dt-binding as Robin suggested. > Use aclk and iface clk as Rob and Robin suggested, and split binding > patch. > > Changes in v5: None > Changes in v4: None > Changes in v3: None > Changes in v2: None > > Documentation/devicetree/bindings/iommu/rockchip,iommu.txt | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > index 2098f7732264..6ecefea1c6f9 100644 > --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt > @@ -14,6 +14,11 @@ Required properties: > "single-master" device, and needs no additional information > to associate with its master device. See: > Documentation/devicetree/bindings/iommu/iommu.txt > +- clocks : A list of clocks required for the IOMMU to be accessible by > + the host CPU. > +- clock-names : Should contain the following: > + "iface" - Main peripheral bus clock (PCLK/HCL) (required) > + "aclk" - AXI bus clock (required) > > Optional properties: > - rockchip,disable-mmu-reset : Don't use the mmu reset operation. > @@ -27,5 +32,7 @@ Example: > reg = <0xff940300 0x100>; > interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; > interrupt-names = "vopl_mmu"; > + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; > + clock-names = "aclk", "iface"; > #iommu-cells = <0>; > }; >
diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt index 2098f7732264..6ecefea1c6f9 100644 --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.txt @@ -14,6 +14,11 @@ Required properties: "single-master" device, and needs no additional information to associate with its master device. See: Documentation/devicetree/bindings/iommu/iommu.txt +- clocks : A list of clocks required for the IOMMU to be accessible by + the host CPU. +- clock-names : Should contain the following: + "iface" - Main peripheral bus clock (PCLK/HCL) (required) + "aclk" - AXI bus clock (required) Optional properties: - rockchip,disable-mmu-reset : Don't use the mmu reset operation. @@ -27,5 +32,7 @@ Example: reg = <0xff940300 0x100>; interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "vopl_mmu"; + clocks = <&cru ACLK_VOP1>, <&cru HCLK_VOP1>; + clock-names = "aclk", "iface"; #iommu-cells = <0>; };