From 8b037cabc4966b010c44a76e05a43d276318bc49 Mon Sep 17 00:00:00 2001 From: Conor Dooley Date: Wed, 29 Jun 2022 19:43:33 +0100 Subject: [PATCH] spi: dt-bindings: dw-apb-ssi: update spi-{r,t}x-bus-width 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 Reviewed-by: Serge Semin Reviewed-by: Rob Herring Tested-by: Niklas Cassel Link: https://lore.kernel.org/r/20220629184343.3438856-5-mail@conchuod.ie Signed-off-by: Mark Brown --- 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 e25d44c..0a43d6e 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: -- 2.7.4