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From: Pascal PAILLET-LME
To: "dmitry.torokhov@gmail.com" ,
"robh+dt@kernel.org" ,
"mark.rutland@arm.com"
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"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"
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"linux-watchdog@vger.kernel.org"
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"benjamin.gaignard@linaro.org"
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"eballetbo@gmail.com"
CC: Pascal PAILLET-LME
Subject: [PATCH v3 3/8] dt-bindings: regulator: document stpmic1 pmic
regulators
Date: Mon, 8 Oct 2018 16:29:40 +0000
Message-ID: <1539016176-4072-4-git-send-email-p.paillet@st.com>
References: <1539016176-4072-1-git-send-email-p.paillet@st.com>
In-Reply-To: <1539016176-4072-1-git-send-email-p.paillet@st.com>
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From: pascal paillet
The STPMIC1 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
---
changes in v3: nothing
.../bindings/regulator/st,stpmic1-regulator.txt | 68 ++++++++++++++++++=
++++
1 file changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/st,stpmic1-=
regulator.txt
diff --git a/Documentation/devicetree/bindings/regulator/st,stpmic1-regulat=
or.txt b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.t=
xt
new file mode 100644
index 0000000..a3f4762
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
@@ -0,0 +1,68 @@
+STMicroelectronics STPMIC1 Voltage regulators
+
+Regulator Nodes are optional depending on needs.
+
+Available Regulators in STPMIC1 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: mask reset for this regulator: the regulator configuratio=
n
+ is maintained during pmic reset.
+- 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 detect=
ion
+ on this regulator,
+ if not set, the driver only sends 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 =3D "st,stpmic1-regulators";
+
+ ldo6-supply =3D <&v3v3>;
+
+ vdd_core: buck1 {
+ regulator-name =3D "vdd_core";
+ interrupts =3D ;
+ interrupt-parent =3D <&pmic>;
+ st,mask-reset;
+ regulator-pull-down;
+ regulator-min-microvolt =3D <700000>;
+ regulator-max-microvolt =3D <1200000>;
+ };
+
+ v3v3: buck4 {
+ regulator-name =3D "v3v3";
+ interrupts =3D ;
+ interrupt-parent =3D <&mypmic>;
+
+ regulator-min-microvolt =3D <3300000>;
+ regulator-max-microvolt =3D <3300000>;
+ };
+
+ v1v8: ldo6 {
+ regulator-name =3D "v1v8";
+ regulator-min-microvolt =3D <1800000>;
+ regulator-max-microvolt =3D <1800000>;
+ regulator-over-current-protection;
+ };
+};
--=20
1.9.1