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Thu, 05 Sep 2019 23:25:57 -0700 (PDT) From: Rashmica Gupta To: linus.walleij@linaro.org Subject: [PATCH v3 1/5] dt-bindings: gpio: aspeed: Update documentation with ast2600 controllers Date: Fri, 6 Sep 2019 16:25:47 +1000 Message-Id: <20190906062547.13264-1-rashmica.g@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190905_232558_836600_71CB0E1F X-CRM114-Status: GOOD ( 10.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , "moderated list:ARM/ASPEED MACHINE SUPPORT" , "open list:GPIO SUBSYSTEM" , Andrew Jeffery , open list , Bartosz Golaszewski , Rob Herring , Joel Stanley , Rashmica Gupta , "moderated list:ARM/ASPEED MACHINE SUPPORT" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org The ast2600 is a new generation of SoC from ASPEED. Similarly to the ast2400 and ast2500, it has a GPIO controller for it's 3.3V GPIO pins. Additionally, it has a GPIO controller for 36 1.8V GPIO pins. We use the ngpio property to differentiate between these controllers. Signed-off-by: Rashmica Gupta --- Documentation/devicetree/bindings/gpio/gpio-aspeed.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt index 7e9b586770b0..b2033fc3a71a 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt @@ -2,7 +2,8 @@ Aspeed GPIO controller Device Tree Bindings ------------------------------------------- Required properties: -- compatible : Either "aspeed,ast2400-gpio" or "aspeed,ast2500-gpio" +- compatible : Either "aspeed,ast2400-gpio", "aspeed,ast2500-gpio", + or "aspeed,ast2600-gpio". - #gpio-cells : Should be two - First cell is the GPIO line number @@ -17,7 +18,9 @@ Required properties: Optional properties: -- clocks : A phandle to the clock to use for debounce timings +- clocks : A phandle to the clock to use for debounce timings +- ngpios : Number of GPIOs controlled by this controller. Should be set + when there are multiple GPIO controllers on a SoC (ast2600). The gpio and interrupt properties are further described in their respective bindings documentation: -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel