From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anders Berg Subject: [PATCH 2/2] Documentation: DT bindings for AXM55xx SSP CS Date: Mon, 1 Sep 2014 14:53:41 +0200 Message-ID: <1409576021-24828-3-git-send-email-anders.berg@avagotech.com> References: <1409576021-24828-1-git-send-email-anders.berg@avagotech.com> Return-path: In-Reply-To: <1409576021-24828-1-git-send-email-anders.berg@avagotech.com> Sender: linux-kernel-owner@vger.kernel.org To: Linus Walleij , Alexandre Courbot Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Anders Berg List-Id: devicetree@vger.kernel.org Bindings and documentation for AXM55xx SSP chip select controller. Signed-off-by: Anders Berg --- .../devicetree/bindings/gpio/gpio-axxia-sspcs.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-axxia-sspcs.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-axxia-sspcs.txt b/Documentation/devicetree/bindings/gpio/gpio-axxia-sspcs.txt new file mode 100644 index 0000000..a64c695 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-axxia-sspcs.txt @@ -0,0 +1,36 @@ +* Axxia SSP GPIO chip-select driver + +The Axxia device has a ARM PL022 Prime Cell SSP controller with an extension of +five chip select signals that may be controlled by software. This driver +exports them as GPIOs. + +Required properties: + + * compatible: should be "lsi,ssp-gpio" + * reg: address of the chip select control register. + * gpio-controller: mark the device as gpio controller + * #gpio-cells: should be 1 and this field specifies the chip select number + +Example: +------- + + spics: sspgpio@2010088030 { + compatible = "lsi,ssp-gpio"; + #gpio-cells = <1>; + reg = <0x20 0x10088030 0x00 0x4>; + gpio-controller; + }; + + spi0: ssp@2010088000 { + compatible = "arm,pl022", "arm,primecell"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x20 0x10088000 0x00 0x1000>; + num-cs = <5>; + cs-gpios = <&spics 0>, + <&spics 1>, + <&spics 2>, + <&spics 3>, + <&spics 4>; + ... + }; -- 1.9.1