Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753057AbaDDV2S (ORCPT ); Fri, 4 Apr 2014 17:28:18 -0400 Received: from mail-qc0-f182.google.com ([209.85.216.182]:44892 "EHLO mail-qc0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751977AbaDDV2L (ORCPT ); Fri, 4 Apr 2014 17:28:11 -0400 From: Soren Brinkmann To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Rob Landley , Russell King , Wolfram Sang , Grant Likely , Michal Simek Cc: Mike Looijmans , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Harini Katakam , linux-doc@vger.kernel.org, devicetree@vger.kernel.org, linux-i2c@vger.kernel.org, =?UTF-8?q?S=C3=B6ren=20Brinkmann?= , Gerhard Sittig Subject: [PATCH v5 1/3] i2c: cadence: Document device tree bindings Date: Fri, 4 Apr 2014 14:27:54 -0700 Message-Id: <1396646876-27336-1-git-send-email-soren.brinkmann@xilinx.com> X-Mailer: git-send-email 1.9.1.1.gbb9f595 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add device tree binding documentation for the Cadence I2C controller. Signed-off-by: Soren Brinkmann --- Changes in v5: - Document all properties - list clock-names as optional property (driver doesn't use it, though) - use lower case hex digits in 'reg' property - reword description of 'clocks' property - remove implementation specific notes regarding default speed - use #defines for interrupt specifier Changes in v4: - moved adding DT docs into this dedicated patch Changes in v3: None Changes in v2: None --- .../devicetree/bindings/i2c/i2c-cadence.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-cadence.txt diff --git a/Documentation/devicetree/bindings/i2c/i2c-cadence.txt b/Documentation/devicetree/bindings/i2c/i2c-cadence.txt new file mode 100644 index 000000000000..7cb0b5608f49 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-cadence.txt @@ -0,0 +1,24 @@ +Binding for the Cadence I2C controller + +Required properties: + - reg: Physical base address and size of the controller's register area. + - compatible: Compatibility string. Must be 'cdns,i2c-r1p10'. + - clocks: Input clock specifier. Refer to common clock bindings. + - interrupts: Interrupt specifier. Refer to interrupt bindings. + - #address-cells: Should be 1. + - #size-cells: Should be 0. + +Optional properties: + - clock-frequency: Desired operating frequency, in Hz, of the bus. + - clock-names: Input clock name, should be 'pclk'. + +Example: + i2c@e0004000 { + compatible = "cdns,i2c-r1p10"; + clocks = <&clkc 38>; + interrupts = ; + reg = <0xe0004000 0x1000>; + clock-frequency = <400000>; + #address-cells = <1>; + #size-cells = <0>; + }; -- 1.9.1.1.gbb9f595 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/