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Date: Fri, 4 Jul 2014 11:55:20 +0200 From: Javier Martinez Canillas <javier.martinez@...labora.co.uk> To: Lee Jones <lee.jones@...aro.org> Cc: Mark Brown <broonie@...nel.org>, Mike Turquette <mturquette@...aro.org>, Liam Girdwood <lgirdwood@...il.com>, Alessandro Zummo <a.zummo@...ertech.it>, Kukjin Kim <kgene.kim@...sung.com>, Doug Anderson <dianders@...omium.org>, Olof Johansson <olof@...om.net>, Tomeu Vizoso <tomeu.vizoso@...labora.com>, Krzysztof Kozlowski <k.kozlowski@...sung.com>, Yadwinder Singh Brar <yadi.brar01@...il.com>, Tushar Behera <trblinux@...il.com>, Andreas Farber <afaerber@...e.de>, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, Javier Martinez Canillas <javier.martinez@...labora.co.uk> Subject: [PATCH v6 21/23] clk: max77802: Add DT binding documentation Add Device Tree binding documentation for the clocks outputs in the Maxim 77802 Power Management IC. Signed-off-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk> --- Changes since v5: - Fix typo error in DT binding. Suggested by Andreas Farber. - Add "clock-output-names" as an optional property since now is supported. Changes since v4: None Changes since v3: - Don't use the same clock driver name in clock-names since it's a consumer concept and most probably will be different. Suggested by Doug Anderson. Changes since v2: - Split the DT binding documentation in a separate patch --- .../devicetree/bindings/clock/maxim,max77802.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/maxim,max77802.txt diff --git a/Documentation/devicetree/bindings/clock/maxim,max77802.txt b/Documentation/devicetree/bindings/clock/maxim,max77802.txt new file mode 100644 index 0000000..c6dc783 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/maxim,max77802.txt @@ -0,0 +1,44 @@ +Binding for Maxim MAX77802 32k clock generator block + +This is a part of device tree bindings of MAX77802 multi-function device. +More information can be found in bindings/mfd/max77802.txt file. + +The MAX77802 contains two 32.768khz clock outputs that can be controlled +(gated/ungated) over I2C. + +Following properties should be present in main device node of the MFD chip. + +Required properties: +- #clock-cells: From common clock binding; shall be set to 1. + +Optional properties: +- clock-output-names: From common clock binding. + +Each clock is assigned an identifier and client nodes can use this identifier +to specify the clock which they consume. Following indices are allowed: + - 0: 32khz_ap clock, + - 1: 32khz_cp clock. + +Clocks are defined as preprocessor macros in dt-bindings/clock/maxim,max77802.h +header and can be used in device tree sources. + +Example: Node of the MFD chip + + max77802: max77802@09 { + compatible = "maxim,max77802"; + interrupt-parent = <&wakeup_eint>; + interrupts = <26 0>; + reg = <0x09>; + #clock-cells = <1>; + + /* ... */ + }; + +Example: Clock consumer node + + foo@0 { + compatible = "bar,foo"; + /* ... */ + clock-names = "my-clock"; + clocks = <&max77802 MAX77802_CLK_32K_AP>; + }; -- 2.0.0.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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