Re: [PATCH linux-next v2 1/9] arm64: r8a7795: add dma request number for busif0 ~ busif7

From: Kuninori Morimoto
Date: Wed Oct 03 2018 - 20:55:17 EST



Hi Jiada

Thank you for your patch

> From: Jiada Wang <jiada_wang@xxxxxxxxxx>
>
> This patch adds dma request number for busif0 ~ busif7
> to be used by GEN3 series. GEN2 continues to use rxu/txu
> for busif data transfer.
>
> Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/renesas/r8a7795.dtsi | 164 ++++++++++++++++++++---
> 1 file changed, 144 insertions(+), 20 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> index b5f2273caca4..fc6100eddfed 100644
> --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
> @@ -1923,53 +1923,177 @@
> rcar_sound,ssi {
> ssi0: ssi-0 {
> interrupts = <GIC_SPI 370 IRQ_TYPE_LEVEL_HIGH>;
> - dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
> - dma-names = "rx", "tx", "rxu", "txu";
> + dmas = <&audma0 0x01>, <&audma1 0x02>,
> + <&audma0 0x15>, <&audma1 0x16>,
> + <&audma0 0x15>, <&audma1 0x16>,
> + <&audma0 0x35>, <&audma1 0x36>,
> + <&audma0 0x37>, <&audma1 0x38>,
> + <&audma0 0x47>, <&audma1 0x48>,
> + <&audma0 0x3f>, <&audma1 0x40>,
> + <&audma0 0x43>, <&audma1 0x44>,
> + <&audma0 0x4f>, <&audma1 0x50>,
> + <&audma0 0x53>, <&audma1 0x54>;
> + dma-names = "rx", "tx",
> + "rxu", "txu",
> + "rxu0", "txu0",
> + "rxu1", "txu1",
> + "rxu2", "txu2",
> + "rxu3", "txu3",
> + "rxu4", "txu4",
> + "rxu5", "txu5",
> + "rxu6", "txu6",
> + "rxu7", "txu7";

In theory, I think DT side patch should be posted/applied
if driver side patch was accepted.
And, Gen3 side DT doesn't need "rxu/txu" I think.