Re: [PATCH v3 2/4] of: move of_dma_configure() to device,c to help re-use

Arnd Bergmann
2015-01-09T00:05:11Z

On Thursday 08 January 2015 18:44:31 Murali Karicheri wrote:
> The grep of dma-ranges for arch/arm shows the size used is mask + 1 as
>
> ./boot/dts/keystone.dtsi: dma-ranges = <0x80000000 0x8 0x00000000
> 0x80000000>;
> ./boot/dts/keystone.dtsi: dma-ranges;
> ./boot/dts/keystone.dtsi: dma-ranges;
> ./boot/dts/r8a7790.dtsi: dma-ranges = <0x42000000 0 0x40000000 0
> 0x40000000 0 0x80000000
> ./boot/dts/integratorap.dts: dma-ranges = <0x80000000 0x0 0x80000000>;
> ./boot/dts/r8a7791.dtsi: dma-ranges = <0x42000000 0 0x40000000 0
> 0x40000000 0 0x80000000
> ./boot/dts/.k2hk-evm.dtb.dts.tmp: dma-ranges = <0x80000000 0x8
> 0x00000000 0x80000000>;
> ./boot/dts/.k2hk-evm.dtb.dts.tmp: dma-ranges;
> ./boot/dts/.k2l-evm.dtb.dts.tmp: dma-ranges = <0x80000000 0x8
> 0x00000000 0x80000000>;
> ./boot/dts/.k2l-evm.dtb.dts.tmp: dma-ranges;
> ./boot/dts/.k2e-evm.dtb.dts.tmp: dma-ranges = <0x80000000 0x8
> 0x00000000 0x80000000>;
> ./boot/dts/.k2e-evm.dtb.dts.tmp: dma-ranges;
> ./boot/dts/.k2e-evm.dtb.dts.tmp: dma-ranges;
> ./boot/dts/k2e.dtsi: dma-ranges;
> ./boot/dts/k2e.dtsi: dma-ranges;
>
> So for ARM 32 the below case doesn't seem to apply.
>

Ah, I guess that is because an empty dma-ranges property serves the same
purpose.

Arnd
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