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Date: Fri, 26 Dec 2014 15:09:25 +0800 From: Flora Fu <flora.fu@...iatek.com> To: Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, Samuel Ortiz <sameo@...ux.intel.com>, Lee Jones <lee.jones@...aro.org>, <arm@...nel.org>, Arnd Bergmann <arnd@...db.de> CC: Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Russell King <linux@....linux.org.uk>, Grant Likely <grant.likely@...aro.org>, <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <srv_heupstream@...iatek.com>, Sascha Hauer <kernel@...gutronix.de>, Olof Johansson <olof@...om.net>, Flora Fu <flora.fu@...iatek.com>, Eddie Huang <eddie.huang@...iatek.com>, Yingjoe Chen <yingjoe.chen@...iatek.com>, Dongdong Cheng <dongdong.cheng@...iatek.com>, HenryC Chen <henryc.chen@...iatek.com>, Menghui Lin <menghui.lin@...iatek.com>, Chen Zhong <chen.zhong@...iatek.com> Subject: [PATCH v4 3/6] dt-bindings:: Add document for MT8135 PMIC Wrapper Signed-off-by: Flora Fu <flora.fu@...iatek.com> --- .../soc/mediatek/mediatek,mt8135-pwrap.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8135-pwrap.txt diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8135-pwrap.txt b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8135-pwrap.txt new file mode 100644 index 0000000..d630fa0 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8135-pwrap.txt @@ -0,0 +1,51 @@ +MediaTek MT8135 PMIC Wrapper Driver + +MediaTek PMIC MFD is interfaced to host controller using SPI interface +by a proprietary hardware called PMIC wrapper or pwrap. + ++-----------------+ +---------------+ +| | | | +| Mediatek AP SoC | | | +| (ex. MT8135) | | MT6397 | +| | | | +| +--------+ | (SPI bus) | +--------+ | +| | | |-----------| | | | +| | PMIC | |-----------| | PMIC | | +| | Wrapper| |-----------| | Wrapper| | +| | | |-----------| | | | +| +--------+ | | +--------+ | +| | | | ++-----------------+ +---------------+ + +This document describes the binding for MT8135 PMIC wrapper. + +Required properties in pwrap device node. +- compatible:"mediatek,mt8135-pwrap" +- interrupts: IRQ for pwrap in SOC +- reg: address range for pwrap registers +- resets: reset bit for pwrap +- clock: clock frequency selection in SPI bus + +Optional properities: +- pmic: Mediatek PMIC MFD is the child device of pwrap + See the following for child node definitions: + Documentation/devicetree/bindings/mfd/mt6397.txt + +Example: + pwrap: pwrap@...0f000 { + compatible = "mediatek,mt8135-pwrap"; + reg = <0 0x1000f000 0 0x1000>, + <0 0x11017000 0 0x1000>; + reg-names = "pwrap-base", "pwrap-bridge-base"; + interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>; + resets = <&infrarst MT8135_INFRA_PMIC_WRAP_RST>, + <&perirst MT8135_PERI_PWRAP_BRIDGE_SW_RST>; + reset-names = "infra-pwrap-rst", + "peri-pwrap-bridge-rst"; + clocks = <&pmicspi_sel>, <&clk26m>; + clock-names = "pmicspi-sel", "pmicspi-parent"; + + pmic { + compatible = "mediatek,mt6397"; + }; + }; -- 1.8.1.1.dirty -- 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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