[linux-sunxi] [PATCH 4/6] ARM: sun8i: a83t: Add device node for DMA controller

Chen-Yu Tsai wens at csie.org
Mon May 22 00:20:36 PDT 2017


On Mon, May 22, 2017 at 3:18 PM, Code Kipper <codekipper at gmail.com> wrote:
> On 22 May 2017 at 08:25, Chen-Yu Tsai <wens at csie.org> wrote:
>> The A83T SoC has a DMA controller that supports 8 DMA channels
>> to and from various peripherals.
>>
>> Add a device node for it.
>>
>> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
>> ---
>>  arch/arm/boot/dts/sun8i-a83t.dtsi | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi
>> index e12dd7170b8f..47196feda26b 100644
>> --- a/arch/arm/boot/dts/sun8i-a83t.dtsi
>> +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi
>> @@ -163,6 +163,15 @@
>>                 #size-cells = <1>;
>>                 ranges;
>>
>> +               dma: dma-controller at 1c02000 {
>> +                       compatible = "allwinner,sun8i-a83t-dma";
>> +                       reg = <0x01c02000 0x1000>;
>> +                       interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
>> +                       clocks = <&ccu 21>;
>> +                       resets = <&ccu 7>;
> Hi Wens,
> these should be ccu defines, otherwise everything else looks great.

Correct. Since the CCU bindings was just introduced, I'm saving all the macros
for v4.13-rc2.

ChenYu

> Great Work,
> CK
>> +                       #dma-cells = <1>;
>> +               };
>> +
>>                 ccu: clock at 1c20000 {
>>                         compatible = "allwinner,sun8i-a83t-ccu";
>>                         reg = <0x01c20000 0x400>;
>> --
>> 2.11.0
>>
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