| Message ID | 20220629184343.3438856-5-mail@conchuod.ie (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Canaan devicetree fixes | expand |
On Wed, 29 Jun 2022 19:43:33 +0100, Conor Dooley wrote: > From: Conor Dooley <conor.dooley@microchip.com> > > Most users of dw-apb-ssi use spi-{r,t}x-bus-width of 1, however the > Canaan k210 is wired up for a width of 4. > Quoting Serge: > The modern DW APB SSI controllers of v.4.* and newer also support the > enhanced SPI Modes too (Dual, Quad and Octal). Since the IP-core > version is auto-detected at run-time there is no way to create a > DT-schema correctly constraining the Rx/Tx SPI bus widths. > /endquote > > As such, drop the restriction on only supporting a bus width of 1. > > Link: https://lore.kernel.org/all/20220620205654.g7fyipwytbww5757@mobilestation/ > Signed-off-by: Conor Dooley <conor.dooley@microchip.com> > --- > Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 6 ------ > 1 file changed, 6 deletions(-) > Reviewed-by: Rob Herring <robh@kernel.org>
On Wed, Jun 29, 2022 at 07:43:33PM +0100, Conor Dooley wrote: > From: Conor Dooley <conor.dooley@microchip.com> > > Most users of dw-apb-ssi use spi-{r,t}x-bus-width of 1, however the > Canaan k210 is wired up for a width of 4. > Quoting Serge: > The modern DW APB SSI controllers of v.4.* and newer also support the > enhanced SPI Modes too (Dual, Quad and Octal). Since the IP-core > version is auto-detected at run-time there is no way to create a > DT-schema correctly constraining the Rx/Tx SPI bus widths. > /endquote > > As such, drop the restriction on only supporting a bus width of 1. Reviewed-by: Serge Semin <fancer.lancer@gmail.com> -Sergey > > Link: https://lore.kernel.org/all/20220620205654.g7fyipwytbww5757@mobilestation/ > Signed-off-by: Conor Dooley <conor.dooley@microchip.com> > --- > Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml | 6 ------ > 1 file changed, 6 deletions(-) > > diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > index e25d44c218f2..0a43d6e0ef91 100644 > --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml > @@ -143,12 +143,6 @@ patternProperties: > minimum: 0 > maximum: 3 > > - spi-rx-bus-width: > - const: 1 > - > - spi-tx-bus-width: > - const: 1 > - > unevaluatedProperties: false > > required: > -- > 2.36.1 >
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml index e25d44c218f2..0a43d6e0ef91 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml @@ -143,12 +143,6 @@ patternProperties: minimum: 0 maximum: 3 - spi-rx-bus-width: - const: 1 - - spi-tx-bus-width: - const: 1 - unevaluatedProperties: false required: