diff mbox series

[v4,2/3] ASoC: dt-bindings: sound: renesas,rz-ssi: Update slave dma channel configuration parameters

Message ID 20210806102930.3024-3-biju.das.jz@bp.renesas.com
State Not Applicable, archived
Headers show
Series None | expand

Checks

Context Check Description
robh/checkpatch warning total: 0 errors, 1 warnings, 10 lines checked

Commit Message

Biju Das Aug. 6, 2021, 10:29 a.m. UTC
The DMAC driver on RZ/G2L expects the slave channel configuration
to be passed in dmas property.
This patch updates the example node to include the encoded slave
channel configuration.

Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi: Document DMA support")
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
Note:-
 This patch is based on [1]
 [1]:- https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210806095322.2326-2-biju.das.jz@bp.renesas.com/

v3->v4:
 * Updated bindings as the DMAC driver on RZ/G2L expects the
   slave channel configuration to be passed in dmas property.
v2->v3:
 * Merged the binding patch with dmas added
 * Updated dt binding example with encoded #dma-cells value.
v1->v2:
 * Rebased on 5.14-rc2.
---
 Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Geert Uytterhoeven Aug. 9, 2021, 12:57 p.m. UTC | #1
Hi Biju,

On Fri, Aug 6, 2021 at 12:29 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
> The DMAC driver on RZ/G2L expects the slave channel configuration
> to be passed in dmas property.
> This patch updates the example node to include the encoded slave
> channel configuration.
>
> Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi: Document DMA support")
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

> v3->v4:
>  * Updated bindings as the DMAC driver on RZ/G2L expects the
>    slave channel configuration to be passed in dmas property.

Thanks for the update!

> --- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> @@ -93,8 +93,8 @@ examples:
>              clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2";
>              power-domains = <&cpg>;
>              resets = <&cpg R9A07G044_SSI0_RST_M2_REG>;
> -            dmas = <&dmac 0x255>,
> -                   <&dmac 0x256>;
> +            dmas = <&dmac 0x2655>,
> +                   <&dmac 0x2656>;
>              dma-names = "tx", "rx";
>              #sound-dai-cells = <0>;
>      };

I think it would be good to describe the expected format in the description
for the dmas property, so the DTS writer knows what the numerical
values in the example really mean.

Gr{oetje,eeting}s,

                        Geert
Biju Das Aug. 12, 2021, 7:19 a.m. UTC | #2
Hi Geert,

Thanks for the update.

> Subject: Re: [PATCH v4 2/3] ASoC: dt-bindings: sound: renesas,rz-ssi:
> Update slave dma channel configuration parameters
> 
> Hi Biju,
> 
> On Fri, Aug 6, 2021 at 12:29 PM Biju Das <biju.das.jz@bp.renesas.com>
> wrote:
> > The DMAC driver on RZ/G2L expects the slave channel configuration to
> > be passed in dmas property.
> > This patch updates the example node to include the encoded slave
> > channel configuration.
> >
> > Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi:
> > Document DMA support")
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> > v3->v4:
> >  * Updated bindings as the DMAC driver on RZ/G2L expects the
> >    slave channel configuration to be passed in dmas property.
> 
> Thanks for the update!
> 
> > --- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > @@ -93,8 +93,8 @@ examples:
> >              clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2";
> >              power-domains = <&cpg>;
> >              resets = <&cpg R9A07G044_SSI0_RST_M2_REG>;
> > -            dmas = <&dmac 0x255>,
> > -                   <&dmac 0x256>;
> > +            dmas = <&dmac 0x2655>,
> > +                   <&dmac 0x2656>;
> >              dma-names = "tx", "rx";
> >              #sound-dai-cells = <0>;
> >      };
> 
> I think it would be good to describe the expected format in the
> description for the dmas property, so the DTS writer knows what the
> numerical values in the example really mean.

Agree, will add description for dmas property.

Regards,
Biju
Rob Herring (Arm) Aug. 13, 2021, 8:12 p.m. UTC | #3
On Mon, Aug 09, 2021 at 02:57:33PM +0200, Geert Uytterhoeven wrote:
> Hi Biju,
> 
> On Fri, Aug 6, 2021 at 12:29 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
> > The DMAC driver on RZ/G2L expects the slave channel configuration
> > to be passed in dmas property.
> > This patch updates the example node to include the encoded slave
> > channel configuration.
> >
> > Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi: Document DMA support")
> > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> 
> > v3->v4:
> >  * Updated bindings as the DMAC driver on RZ/G2L expects the
> >    slave channel configuration to be passed in dmas property.
> 
> Thanks for the update!
> 
> > --- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > @@ -93,8 +93,8 @@ examples:
> >              clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2";
> >              power-domains = <&cpg>;
> >              resets = <&cpg R9A07G044_SSI0_RST_M2_REG>;
> > -            dmas = <&dmac 0x255>,
> > -                   <&dmac 0x256>;
> > +            dmas = <&dmac 0x2655>,
> > +                   <&dmac 0x2656>;
> >              dma-names = "tx", "rx";
> >              #sound-dai-cells = <0>;
> >      };
> 
> I think it would be good to describe the expected format in the description
> for the dmas property, so the DTS writer knows what the numerical
> values in the example really mean.

Yes, but that's a property of the DMA controller binding, not this one. 
It could vary from chip to chip.

Rob
Rob Herring (Arm) Aug. 13, 2021, 8:13 p.m. UTC | #4
On Fri, 06 Aug 2021 11:29:29 +0100, Biju Das wrote:
> The DMAC driver on RZ/G2L expects the slave channel configuration
> to be passed in dmas property.
> This patch updates the example node to include the encoded slave
> channel configuration.
> 
> Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi: Document DMA support")
> Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> Note:-
>  This patch is based on [1]
>  [1]:- https://patchwork.kernel.org/project/linux-renesas-soc/patch/20210806095322.2326-2-biju.das.jz@bp.renesas.com/
> 
> v3->v4:
>  * Updated bindings as the DMAC driver on RZ/G2L expects the
>    slave channel configuration to be passed in dmas property.
> v2->v3:
>  * Merged the binding patch with dmas added
>  * Updated dt binding example with encoded #dma-cells value.
> v1->v2:
>  * Rebased on 5.14-rc2.
> ---
>  Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 

Acked-by: Rob Herring <robh@kernel.org>
Geert Uytterhoeven Aug. 14, 2021, 9:11 a.m. UTC | #5
Hi Rob,

On Fri, Aug 13, 2021 at 10:12 PM Rob Herring <robh@kernel.org> wrote:
> On Mon, Aug 09, 2021 at 02:57:33PM +0200, Geert Uytterhoeven wrote:
> > On Fri, Aug 6, 2021 at 12:29 PM Biju Das <biju.das.jz@bp.renesas.com> wrote:
> > > The DMAC driver on RZ/G2L expects the slave channel configuration
> > > to be passed in dmas property.
> > > This patch updates the example node to include the encoded slave
> > > channel configuration.
> > >
> > > Fixes: 5df6dfbb6de815ba3a("ASoC: dt-bindings: sound: renesas,rz-ssi: Document DMA support")
> > > Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
> > > Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > > v3->v4:
> > >  * Updated bindings as the DMAC driver on RZ/G2L expects the
> > >    slave channel configuration to be passed in dmas property.
> >
> > Thanks for the update!
> >
> > > --- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > > +++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
> > > @@ -93,8 +93,8 @@ examples:
> > >              clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2";
> > >              power-domains = <&cpg>;
> > >              resets = <&cpg R9A07G044_SSI0_RST_M2_REG>;
> > > -            dmas = <&dmac 0x255>,
> > > -                   <&dmac 0x256>;
> > > +            dmas = <&dmac 0x2655>,
> > > +                   <&dmac 0x2656>;
> > >              dma-names = "tx", "rx";
> > >              #sound-dai-cells = <0>;
> > >      };
> >
> > I think it would be good to describe the expected format in the description
> > for the dmas property, so the DTS writer knows what the numerical
> > values in the example really mean.
>
> Yes, but that's a property of the DMA controller binding, not this one.
> It could vary from chip to chip.

Right, unlike the other Renesas SoCs, RZ/G2L uses the normal DMAC for
audio, not an audio-specific one.

Gr{oetje,eeting}s,

                        Geert
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
index 471937cb8d05..9923e7b8264f 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
+++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
@@ -93,8 +93,8 @@  examples:
             clock-names = "ssi", "ssi_sfr", "audio_clk1", "audio_clk2";
             power-domains = <&cpg>;
             resets = <&cpg R9A07G044_SSI0_RST_M2_REG>;
-            dmas = <&dmac 0x255>,
-                   <&dmac 0x256>;
+            dmas = <&dmac 0x2655>,
+                   <&dmac 0x2656>;
             dma-names = "tx", "rx";
             #sound-dai-cells = <0>;
     };