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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-gpio@vger.kernel.org, Claudiu.Beznea@microchip.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Claudiu Beznea Add documentation for at91 pin controller banks. Signed-off-by: Claudiu Beznea Acked-by: Ludovic Desroches --- .../bindings/pinctrl/atmel,at91-pinctrl.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt index 3e23fece99da..40e33dfc36fd 100644 --- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt @@ -116,6 +116,18 @@ Some requirements for using atmel,at91rm9200-pinctrl binding: configurations by referring to the phandle of that pin configuration node. 4. The gpio controller must be describe in the pinctrl simple-bus. +For each bank the required properties are: +- compatible: "atmel,at91sam9x5-gpio" or "atmel,at91rm9200-gpio" +- reg: physical base address and length of the controller's registers +- interrupts: interrupt outputs from the controller +- interrupt-controller: marks the device node as an interrupt controller +- #interrupt-cells: should be 2; refer to ../interrupt-controller/interrupts.txt + for more details. +- gpio-controller +- #gpio-cells: should be 2; the first cell is the GPIO number and the second + cell specifies GPIO flags as defined in . +- clocks: bank clock + Examples: pinctrl@fffff400 { @@ -125,6 +137,17 @@ pinctrl@fffff400 { compatible = "atmel,at91rm9200-pinctrl", "simple-bus"; reg = <0xfffff400 0x600>; + pioA: gpio@fffff400 { + compatible = "atmel,at91sam9x5-gpio"; + reg = <0xfffff400 0x200>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>; + #gpio-cells = <2>; + gpio-controller; + interrupt-controller; + #interrupt-cells = <2>; + clocks = <&pmc PMC_TYPE_PERIPHERAL 2>; + }; + atmel,mux-mask = < /* A B */ 0xffffffff 0xffc00c3b /* pioA */