| Message ID | 20220406233648.21644-6-brad@pensando.io |
|---|---|
| State | New |
| Headers | show |
| Series | Support Pensando Elba SoC | expand |
On Thu, Apr 07, 2022 at 08:52:34PM +0200, Krzysztof Kozlowski wrote: > On 07/04/2022 01:36, Brad Larson wrote: > > The Pensando Elba SoC has integrated the DW APB SPI Controller > > and requires the property pensando,syscon-spics for access > > to the spics control register. > > > > Signed-off-by: Brad Larson <brad@pensando.io> > > --- > > Change from V3: > > - Add required property pensando,syscon-spics to go with > > pensando,elba-spi > > Thank you for your patch. There is something to discuss/improve. > > > > .../bindings/spi/snps,dw-apb-ssi.yaml | 17 +++++++++++++++++ > > 1 file changed, 17 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > > index d7e08b03e204..41c3bbf5a55c 100644 > > --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > > +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > > @@ -37,6 +37,21 @@ allOf: > > else: > > required: > > - interrupts > > + - if: > > + properties: > > + compatible: > > + contains: > > + enum: > > + - pensando,elba-spi > > + then: > > + properties: > > + pensando,syscon-spics: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Phandle to the system control device node which provides access to > > + the spics control register > > It looks you only need to poke one register from spics, so it could be > something like: > > items: > - items: > - description: Phandle to the system control device node > - description: spics control register offset Right, especially seeing that's the way the elba-specific part of the DW APB SSI driver expects the property being initialized. -Sergey > > > Best regards, > Krzysztof
On Wed, Apr 06, 2022 at 04:36:42PM -0700, Brad Larson wrote: > The Pensando Elba SoC has integrated the DW APB SPI Controller > and requires the property pensando,syscon-spics for access > to the spics control register. > > Signed-off-by: Brad Larson <brad@pensando.io> > --- > Change from V3: > - Add required property pensando,syscon-spics to go with > pensando,elba-spi > > .../bindings/spi/snps,dw-apb-ssi.yaml | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > index d7e08b03e204..41c3bbf5a55c 100644 > --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > @@ -37,6 +37,21 @@ allOf: > else: > required: > - interrupts > + - if: > + properties: > + compatible: > + contains: > + enum: > + - pensando,elba-spi > + then: > + properties: > + pensando,syscon-spics: Please see my comment to the "[PATCH 11/11] arm64: dts: Add Pensando Elba SoC support" patch regarding this property implementation. -Sergey > + $ref: /schemas/types.yaml#/definitions/phandle > + description: > + Phandle to the system control device node which provides access to > + the spics control register > + required: > + - pensando,syscon-spics > > properties: > compatible: > @@ -73,6 +88,8 @@ properties: > - renesas,r9a06g032-spi # RZ/N1D > - renesas,r9a06g033-spi # RZ/N1S > - const: renesas,rzn1-spi # RZ/N1 > + - description: Pensando SoC SPI Controller > + const: pensando,elba-spi > > reg: > minItems: 1 > -- > 2.17.1 >
Hi Krzysztof, On Thu, Apr 7, 2022 at 11:52 AM Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> wrote: > > On 07/04/2022 01:36, Brad Larson wrote: > > --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > > +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > > @@ -37,6 +37,21 @@ allOf: > > else: > > required: > > - interrupts > > + - if: > > + properties: > > + compatible: > > + contains: > > + enum: > > + - pensando,elba-spi > > + then: > > + properties: > > + pensando,syscon-spics: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: > > + Phandle to the system control device node which provides access to > > + the spics control register > > It looks you only need to poke one register from spics, so it could be > something like: > > items: > - items: > - description: Phandle to the system control device node > - description: spics control register offset This looks better, I'll change to this approach for updated patchset. Regards, Brad
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml index d7e08b03e204..41c3bbf5a55c 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml @@ -37,6 +37,21 @@ allOf: else: required: - interrupts + - if: + properties: + compatible: + contains: + enum: + - pensando,elba-spi + then: + properties: + pensando,syscon-spics: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the system control device node which provides access to + the spics control register + required: + - pensando,syscon-spics properties: compatible: @@ -73,6 +88,8 @@ properties: - renesas,r9a06g032-spi # RZ/N1D - renesas,r9a06g033-spi # RZ/N1S - const: renesas,rzn1-spi # RZ/N1 + - description: Pensando SoC SPI Controller + const: pensando,elba-spi reg: minItems: 1
The Pensando Elba SoC has integrated the DW APB SPI Controller and requires the property pensando,syscon-spics for access to the spics control register. Signed-off-by: Brad Larson <brad@pensando.io> --- Change from V3: - Add required property pensando,syscon-spics to go with pensando,elba-spi .../bindings/spi/snps,dw-apb-ssi.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)