Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH v3 2/4] of: move of_dma_configure() to device,c to help re-use | Date | Fri, 09 Jan 2015 01:05:11 +0100 |
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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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