From mboxrd@z Thu Jan 1 00:00:00 1970 From: Masahiro Yamada Subject: [PATCH 3/3] i2c: uniphier: add bindings for UniPhier I2C controllers Date: Thu, 30 Jul 2015 17:12:22 +0900 Message-ID: <1438243942-26401-4-git-send-email-yamada.masahiro@socionext.com> References: <1438243942-26401-1-git-send-email-yamada.masahiro@socionext.com> Return-path: In-Reply-To: <1438243942-26401-1-git-send-email-yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Masahiro Yamada , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Wolfram Sang , Kumar Gala , Ian Campbell , Rob Herring , Pawel Moll , Mark Rutland , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org Device Tree bindings for two I2C controllers embedded in UniPhier SoCs. Signed-off-by: Masahiro Yamada --- .../devicetree/bindings/i2c/i2c-uniphier.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-uniphier.txt diff --git a/Documentation/devicetree/bindings/i2c/i2c-uniphier.txt b/Documentation/devicetree/bindings/i2c/i2c-uniphier.txt new file mode 100644 index 0000000..e4ddb50 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-uniphier.txt @@ -0,0 +1,46 @@ +UniPhier I2C controller + +Two different types of I2C controller IPs are used on UniPhier SoC platform: +- FIFO-less I2C controller on PH-LD4, PH1-sLD8 or older SoCs +- FIFO-builtin I2C controller on PH1-Pro4 or newer SoCs + +Required properties: +- compatible: should be one of the followings: + "socionext,uniphier-i2c" (FIFO-less) + "socionext,uniphier-fi2c" (FIFO-builtin) +- #address-cells: should be 1. +- #size-cells: should be 0. +- reg: offset and length of the register set for the device. +- interrupts: a single interrupt specifier. +- clocks: phandle to the input clock. + +Optional properties: +- clock-frequency: desired I2C bus frequency in Hz. The maximum supported + value is 400000. Defaults to 100000 if not specified. + +Examples: + +- FIFO-less + + i2c0: i2c@58400000 { + compatible = "socionext,uniphier-i2c"; + reg = <0x58400000 0x40>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <0 41 1>; + clocks = <&i2c_clk>; + clock-frequency = <100000>; + }; + + +- FIFO-builtin + + i2c0: i2c@58780000 { + compatible = "socionext,uniphier-fi2c"; + reg = <0x58780000 0x80>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <0 41 4>; + clocks = <&i2c_clk>; + clock-frequency = <100000>; + }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html