diff mbox series

[3/3] spi: dt-bindings: Add wait state polling flag

Message ID 20220317012006.15080-4-kyarlagadda@nvidia.com (mailing list archive)
State Superseded
Headers show
Series spi: tegra quad: Add Tegra Grace features | expand

Commit Message

Krishna Yarlagadda March 17, 2022, 1:20 a.m. UTC
Add flag to enable tpm wait state polling and Tegra Grace binding.

Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
---
 .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml       | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Mikko Perttunen March 17, 2022, 8:42 a.m. UTC | #1
On 3/17/22 03:20, Krishna Yarlagadda wrote:
> Add flag to enable tpm wait state polling and Tegra Grace binding.
> 
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> ---
>   .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml       | 6 ++++++
>   1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> index 0296edd1de22..88b00fcad210 100644
> --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> @@ -20,6 +20,7 @@ properties:
>         - nvidia,tegra186-qspi
>         - nvidia,tegra194-qspi
>         - nvidia,tegra234-qspi
> +      - nvidia,tegra-grace-qspi

nvidia,tegra241-qspi. Similarly in other places that refer to the chip name.

Mikko

>   
>     reg:
>       maxItems: 1
> @@ -57,6 +58,11 @@ patternProperties:
>         spi-tx-bus-width:
>           enum: [1, 2, 4]
>   
> +      nvidia,wait-polling:
> +        description:
> +          Enable TPM wait state polling on supported chips.
> +	type: boolean
> +
>         nvidia,tx-clk-tap-delay:
>           description:
>             Delays the clock going out to device with this tap value.
Krishna Yarlagadda March 17, 2022, 9:03 a.m. UTC | #2
> -----Original Message-----
> From: Mikko Perttunen <cyndis@kapsi.fi>
> Sent: 17 March 2022 14:13
> To: Krishna Yarlagadda <kyarlagadda@nvidia.com>; broonie@kernel.org; thierry.reding@gmail.com; Jonathan Hunter
> <jonathanh@nvidia.com>; linux-spi@vger.kernel.org; linux-tegra@vger.kernel.org; Ashish Singhal <ashishsingha@nvidia.com>
> Cc: Sowjanya Komatineni <skomatineni@nvidia.com>; Laxman Dewangan <ldewangan@nvidia.com>; robh+dt@kernel.org;
> devicetree@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: [PATCH 3/3] spi: dt-bindings: Add wait state polling flag
> 
> External email: Use caution opening links or attachments
> 
> 
> On 3/17/22 03:20, Krishna Yarlagadda wrote:
> > Add flag to enable tpm wait state polling and Tegra Grace binding.
> >
> > Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> > ---
> >   .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml       | 6 ++++++
> >   1 file changed, 6 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > index 0296edd1de22..88b00fcad210 100644
> > --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> > @@ -20,6 +20,7 @@ properties:
> >         - nvidia,tegra186-qspi
> >         - nvidia,tegra194-qspi
> >         - nvidia,tegra234-qspi
> > +      - nvidia,tegra-grace-qspi
> 
> nvidia,tegra241-qspi. Similarly in other places that refer to the chip name.
Agree. Will change it to be consistent with rest of the chip patches.
> 
> Mikko
> 
> >
> >     reg:
> >       maxItems: 1
> > @@ -57,6 +58,11 @@ patternProperties:
> >         spi-tx-bus-width:
> >           enum: [1, 2, 4]
> >
> > +      nvidia,wait-polling:
> > +        description:
> > +          Enable TPM wait state polling on supported chips.
> > +     type: boolean
> > +
> >         nvidia,tx-clk-tap-delay:
> >           description:
> >             Delays the clock going out to device with this tap value.
Rob Herring (Arm) March 23, 2022, 8:13 p.m. UTC | #3
On Thu, Mar 17, 2022 at 06:50:06AM +0530, Krishna Yarlagadda wrote:
> Add flag to enable tpm wait state polling and Tegra Grace binding.

TPM

> 
> Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
> ---
>  .../devicetree/bindings/spi/nvidia,tegra210-quad.yaml       | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> index 0296edd1de22..88b00fcad210 100644
> --- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> +++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
> @@ -20,6 +20,7 @@ properties:
>        - nvidia,tegra186-qspi
>        - nvidia,tegra194-qspi
>        - nvidia,tegra234-qspi
> +      - nvidia,tegra-grace-qspi
>  
>    reg:
>      maxItems: 1
> @@ -57,6 +58,11 @@ patternProperties:
>        spi-tx-bus-width:
>          enum: [1, 2, 4]
>  
> +      nvidia,wait-polling:
> +        description:
> +          Enable TPM wait state polling on supported chips.

What's TPM?

Why is this not implied by the compatible string?

Also, how child node properties are handled has changed. See 
Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml. The 
NVidia specific properties should be refactored first before adding 
more.

> +	type: boolean
> +
>        nvidia,tx-clk-tap-delay:
>          description:
>            Delays the clock going out to device with this tap value.
> -- 
> 2.17.1
> 
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
index 0296edd1de22..88b00fcad210 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
@@ -20,6 +20,7 @@  properties:
       - nvidia,tegra186-qspi
       - nvidia,tegra194-qspi
       - nvidia,tegra234-qspi
+      - nvidia,tegra-grace-qspi
 
   reg:
     maxItems: 1
@@ -57,6 +58,11 @@  patternProperties:
       spi-tx-bus-width:
         enum: [1, 2, 4]
 
+      nvidia,wait-polling:
+        description:
+          Enable TPM wait state polling on supported chips.
+	type: boolean
+
       nvidia,tx-clk-tap-delay:
         description:
           Delays the clock going out to device with this tap value.