On Mon, 18 Feb 2019 at 22:02, Rob Herring <robh+dt@xxxxxxxxxx> wrote:
>
> On Wed, Feb 13, 2019 at 1:37 AM Baolin Wang <baolin.wang@xxxxxxxxxx> wrote:
> >
> > From: Lanqing Liu <lanqing.liu@xxxxxxxxxx>
> >
> > Add the DMA properties for the SPI dma mode.
> >
> > Signed-off-by: Lanqing Liu <lanqing.liu@xxxxxxxxxx>
> > Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
> > ---
> > Changes from v1:
> > - Remove sprd,dma-slave-ids property.
> > ---
> > Documentation/devicetree/bindings/spi/spi-sprd.txt | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/spi/spi-sprd.txt b/Documentation/devicetree/bindings/spi/spi-sprd.txt
> > index bad211a..3c7eacc 100644
> > --- a/Documentation/devicetree/bindings/spi/spi-sprd.txt
> > +++ b/Documentation/devicetree/bindings/spi/spi-sprd.txt
> > @@ -14,6 +14,11 @@ Required properties:
> > address on the SPI bus. Should be set to 1.
> > - #size-cells: Should be set to 0.
> >
> > +Optional properties:
> > +dma-names: Should contain names of the SPI used DMA channel.
> > +dmas: Should contain DMA channels and DMA slave ids which the SPI used
> > + sorted in the same order as the dma-names property.
>
> These need to define the order and names.
Sure.
>
> > +
> > Example:
> > spi0: spi@70a00000{
> > compatible = "sprd,sc9860-spi";
> > @@ -21,6 +26,8 @@ spi0: spi@70a00000{
> > interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> > clock-names = "spi", "source","enable";
> > clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>;
> > + dma-names = "rx_chn", "tx_chn";
>
> Everyone else uses "rx" and "tx". Do you really need something different?
Okay, will change to use "rx" and "tx". I will send incremental patch
to fix ths issues you pointed out. Thanks.
--
Baolin Wang
Best Regards
