From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH V2 3/8] dt-bindings: regulator: document stpmic1 pmic regulators Date: Tue, 25 Sep 2018 16:25:32 -0500 Message-ID: <20180925212532.GA23630@bogus> References: <1536325173-16617-1-git-send-email-p.paillet@st.com> <1536325173-16617-4-git-send-email-p.paillet@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1536325173-16617-4-git-send-email-p.paillet@st.com> Sender: linux-kernel-owner@vger.kernel.org To: Pascal PAILLET-LME Cc: "dmitry.torokhov@gmail.com" , "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" , "eballetbo@gmail.com" List-Id: devicetree@vger.kernel.org On Fri, Sep 07, 2018 at 12:59:44PM +0000, Pascal PAILLET-LME wrote: > 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 v2: > * the hardware component has been renamed from stpmu1 to stpmic1 ! > * replace _ with - in properties name > * remove deprecated regulator-compatible from the example > Rob, the st,mask_reset name is taken from the data-sheet. I have modified the > description. I hope there is no confusion with bit masking know. > > .../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-regulator.txt b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt > 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 configuration > + is maintained during pmic reset. State this is boolean. > +- 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 sends an over-current event. > +- interrupt-parent: phandle to the parent interrupt controller This is implied. And actually not needed as the parent node is an '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,stpmic1-regulators"; > + > + ldo6-supply = <&v3v3>; > + > + vdd_core: buck1 { > + regulator-name = "vdd_core"; > + interrupts = ; > + interrupt-parent = <&pmic>; > + st,mask-reset; > + regulator-pull-down; > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1200000>; > + }; > + > + v3v3: buck4 { > + regulator-name = "v3v3"; > + interrupts = ; > + interrupt-parent = <&mypmic>; Different parent from buck1? > + > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + }; > + > + v1v8: ldo6 { > + regulator-name = "v1v8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-over-current-protection; > + }; > +}; > -- > 1.9.1