diff mbox series

[03/11] dt-bindings: mmc: Add Pensando Elba SoC binding

Message ID 20220406233648.21644-4-brad@pensando.io
State New
Headers show
Series Support Pensando Elba SoC | expand

Commit Message

Brad Larson April 6, 2022, 11:36 p.m. UTC
Pensando Elba ARM 64-bit SoC is integrated with this IP and
explicitly controls byte-lane enables resulting in an additional
reg property resource.

Signed-off-by: Brad Larson <brad@pensando.io>
---
Change from V3:
- Change from elba-emmc to elba-sd4hc to match file convention
- Use minItems: 1 and maxItems: 2 to pass schema check

 Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Comments

Krzysztof Kozlowski April 7, 2022, 6:57 p.m. UTC | #1
On 07/04/2022 01:36, Brad Larson wrote:
> Pensando Elba ARM 64-bit SoC is integrated with this IP and
> explicitly controls byte-lane enables resulting in an additional
> reg property resource.
> 
> Signed-off-by: Brad Larson <brad@pensando.io>
> ---
> Change from V3:
> - Change from elba-emmc to elba-sd4hc to match file convention
> - Use minItems: 1 and maxItems: 2 to pass schema check
> 
>  Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> index 4207fed62dfe..278a71b27488 100644
> --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> @@ -19,10 +19,12 @@ properties:
>        - enum:
>            - microchip,mpfs-sd4hc
>            - socionext,uniphier-sd4hc
> +          - pensando,elba-sd4hc

Put your entry in alphabetical order.

>        - const: cdns,sd4hc
>  
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2

This needs allOf:if:then: which sets constraint on number of items per
different compatible.

>  
>    interrupts:
>      maxItems: 1


Best regards,
Krzysztof
Brad Larson May 25, 2022, 3:46 p.m. UTC | #2
Hi Arnd,

On Wed, Apr 6, 2022 at 11:31 PM Arnd Bergmann <arnd@arndb.de> wrote:
>
> On Thu, Apr 7, 2022 at 1:36 AM Brad Larson <brad@pensando.io> wrote:
> >
> > --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > @@ -19,10 +19,12 @@ properties:
> >        - enum:
> >            - microchip,mpfs-sd4hc
> >            - socionext,uniphier-sd4hc
> > +          - pensando,elba-sd4hc
> >        - const: cdns,sd4hc
> >
> >    reg:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 2
> >
>
> Shouldn't the binding describe what the register areas are? If there
> is only one of them, it is fairly clear, but when you have the choice
> between one and two, it gets ambiguous, and there is a risk that
> another SoC might have a different register area in the second entry,
> making it incompatible.

Thanks for the review.  Changing this to allOf:if:then in updated
patchset.  The second item is particular to Elba SoC.

Regards,
Brad
Brad Larson May 25, 2022, 3:49 p.m. UTC | #3
Hi Krzysztof,

On Thu, Apr 7, 2022 at 11:57 AM Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:
>
> On 07/04/2022 01:36, Brad Larson wrote:
> >
> > --- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > +++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
> > @@ -19,10 +19,12 @@ properties:
> >        - enum:
> >            - microchip,mpfs-sd4hc
> >            - socionext,uniphier-sd4hc
> > +          - pensando,elba-sd4hc
>
> Put your entry in alphabetical order.

Yes, will order alphabetical.

> >        - const: cdns,sd4hc
> >
> >    reg:
> > -    maxItems: 1
> > +    minItems: 1
> > +    maxItems: 2
>
> This needs allOf:if:then: which sets constraint on number of items per
> different compatible.
>
> >
> >    interrupts:
> >      maxItems: 1

Thanks for the recommendation.  Changing to this approach as the
second item is only for Elba SoC.

Regards,
Brad
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index 4207fed62dfe..278a71b27488 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -19,10 +19,12 @@  properties:
       - enum:
           - microchip,mpfs-sd4hc
           - socionext,uniphier-sd4hc
+          - pensando,elba-sd4hc
       - const: cdns,sd4hc
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   interrupts:
     maxItems: 1