# \[PATCH v4 4/6\] ARM: dts: r8a7794: add Audio-DMAC support

- From: Geert Uytterhoeven \<geert@linux-m68k.org\>
- Date: 2016-08-08 13:15:15 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2016/08/8126293
- Thread: https://ratatoskr.run/linux-arm-kernel/2016/08/8126293/t.md

```text
On Mon, Aug 8, 2016 at 3:14 PM, Geert Uytterhoeven [ref] wrote:
> On Wed, Jul 27, 2016 at 11:02 PM, Sergei Shtylyov
> [ref] wrote:
>> Describe Audio-DMAC in the R8A7794 device tree.
>>
>> This patch is loosely based on the commit 8994fff67761 ("ARM: shmobile:
>> r8a7791: Add Audio DMAC devices to DT").
>>
>> Signed-off-by: Sergei Shtylyov <redacted>
>>
>> ---
>> Changes in version 4:
>> - refreshed the patch.
>>
>> Changes in version 3:
>> - refreshed the patch.
>>
>>  arch/arm/boot/dts/r8a7794.dtsi |   28 ++++++++++++++++++++++++++++
>>  1 file changed, 28 insertions(+)
>>
>> Index: renesas/arch/arm/boot/dts/r8a7794.dtsi
>> ===================================================================
>> --- renesas.orig/arch/arm/boot/dts/r8a7794.dtsi
>> +++ renesas/arch/arm/boot/dts/r8a7794.dtsi
>> @@ -296,6 +296,34 @@
>>                 dma-channels = <15>;
>>         };
>>
>> +       audma0: dma-controller at ec700000 {

>> +               dma-channels = <13>;
>> +       };
>
> According to R-Car-Gen2-common-v2.00.pdf (Audio-DMAC and INTC-SYS
> chapters), V2H has only 2 audio DMA channels, not 13.

Scrap it, this is a patch for E2, not V2H.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
```