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