From mboxrd@z Thu Jan 1 00:00:00 1970 From: Flora Fu Subject: [PATCH v3 4/8] dt-bindings:: Add document for MT8135 PMIC Wrapper Date: Fri, 5 Dec 2014 12:07:55 +0800 Message-ID: <1417752479-4749-5-git-send-email-flora.fu@mediatek.com> References: <1417752479-4749-1-git-send-email-flora.fu@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1417752479-4749-1-git-send-email-flora.fu@mediatek.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Rob Herring , Matthias Brugger , Samuel Ortiz , Lee Jones , Liam Girdwood , Mark Brown , arm@kernel.org Cc: Mark Rutland , devicetree@vger.kernel.org, Russell King , srv_heupstream@mediatek.com, Pawel Moll , Ian Campbell , linux-kernel@vger.kernel.org, HenryC Chen , Menghui Lin , Olof Johansson , Arnd Bergmann , Sascha Hauer , Kumar Gala , Grant Likely , Yingjoe Chen , Eddie Huang , Flora Fu , linux-arm-kernel@lists.infradead.org, Dongdong Cheng List-Id: devicetree@vger.kernel.org Signed-off-by: Flora Fu --- .../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@1000f000 { + compatible = "mediatek,mt8135-pwrap"; + reg = <0 0x1000f000 0 0x1000>, + <0 0x11017000 0 0x1000>; + reg-names = "pwrap-base", "pwrap-bridge-base"; + interrupts = ; + 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