From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pascal PAILLET-LME Subject: [PATCH 3/8] dt-bindings: regulator: document stpmu1 pmic regulators Date: Thu, 5 Jul 2018 15:14:23 +0000 Message-ID: <1530803657-17684-4-git-send-email-p.paillet@st.com> References: <1530803657-17684-1-git-send-email-p.paillet@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <1530803657-17684-1-git-send-email-p.paillet@st.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: "dmitry.torokhov@gmail.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "lee.jones@linaro.org" , "lgirdwood@gmail.com" , "broonie@kernel.org" , "wim@linux-watchdog.org" , "linux@roeck-us.net" , "linux-input@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-watchdog@vger.kernel.org" , "benjamin.gaignard@linaro.org" Cc: Pascal PAILLET-LME List-Id: linux-input@vger.kernel.org From: pascal paillet The STPMU1 regulators supply power to the application processor as well as to the external system peripherals such as DDR, Flash memories and system devices. Signed-off-by: pascal paillet --- .../bindings/regulator/st,stpmu1-regulator.txt | 72 ++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/st,stpmu1-regulator.txt diff --git a/Documentation/devicetree/bindings/regulator/st,stpmu1-regulator.txt b/Documentation/devicetree/bindings/regulator/st,stpmu1-regulator.txt new file mode 100644 index 0000000..888e759 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/st,stpmu1-regulator.txt @@ -0,0 +1,72 @@ +STMicroelectronics STPMU1 Voltage regulators + +Regulator Nodes are optional depending on needs. + +Available Regulators in STPMU1 device are: + - buck1 for Buck BUCK1 + - buck2 for Buck BUCK2 + - buck3 for Buck BUCK3 + - buck4 for Buck BUCK4 + - ldo1 for LDO LDO1 + - ldo2 for LDO LDO2 + - ldo3 for LDO LDO3 + - ldo4 for LDO LDO4 + - ldo5 for LDO LDO5 + - ldo6 for LDO LDO6 + - vref_ddr for LDO Vref DDR + - boost for Buck BOOST + - pwr_sw1 for VBUS_OTG switch + - pwr_sw2 for SW_OUT switch + +Switches are fixed voltage regulators with only enable/disable capability. + +Optional properties: +- st,mask_reset: stay on during Reset for particular regulator +- regulator-pull-down: enable high pull down + if not specified light pull down is used +- regulator-over-current-protection: + if set, all regulators are switched off in case of over-current detection + on this regulator, + if not set, the driver only send an over-current event. +- interrupt-parent: phandle to the parent interrupt controller +- interrupts: index of current limit detection interrupt +- -supply: phandle to the parent supply/regulator node + each regulator supply can be described except vref_ddr. + +Example: +regulators { + compatible = "st,stpmu1-regulators"; + + ldo6-supply = <&v3v3>; + + vdd_core: regulator@0 { + regulator-compatible = "buck1"; + regulator-name = "vdd_core"; + interrupts = ; + interrupt-parent = <&pmic>; + st,mask_reset; + regulator-pull-down; + st,pulldown_config = <2>; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1200000>; + }; + + v3v3: buck4 { + regulator-compatible = "buck4"; + regulator-name = "v3v3"; + interrupts = ; + interrupt-parent = <&mypmic>; + + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + v1v8: ldo6 { + regulator-compatible = "ldo6"; + regulator-name = "v1v8"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-over-current-protection; + }; + +}; -- 1.9.1