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([51.37.234.167]) by smtp.gmail.com with ESMTPSA id u23-20020a7bcb17000000b0039aef592ca0sm3834371wmj.35.2022.06.29.11.44.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Jun 2022 11:44:42 -0700 (PDT) From: Conor Dooley To: David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Thierry Reding , Sam Ravnborg , Eugeniy Paltsev , Vinod Koul , Liam Girdwood , Mark Brown , Serge Semin , Daniel Lezcano , Palmer Dabbelt , Palmer Dabbelt Subject: [PATCH v3 04/15] spi: dt-bindings: dw-apb-ssi: update spi-{r, t}x-bus-width Date: Wed, 29 Jun 2022 19:43:33 +0100 Message-Id: <20220629184343.3438856-5-mail@conchuod.ie> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220629184343.3438856-1-mail@conchuod.ie> References: <20220629184343.3438856-1-mail@conchuod.ie> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-riscv@lists.infradead.org, Niklas Cassel , alsa-devel@alsa-project.org, Albert Ou , devicetree@vger.kernel.org, Damien Le Moal , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-spi@vger.kernel.org, Conor Dooley , Jose Abreu , Geert Uytterhoeven , Paul Walmsley , dmaengine@vger.kernel.org, Thomas Gleixner , Dillon Min , Masahiro Yamada Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Conor Dooley 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: Rob Herring Reviewed-by: Serge Semin --- 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: