| Message ID | 1536325173-16617-4-git-send-email-p.paillet@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Introduce STPMIC1 PMIC Driver | expand |
On Fri, Sep 07, 2018 at 12:59:44PM +0000, Pascal PAILLET-LME wrote: > From: pascal paillet <p.paillet@st.com> > > 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 <p.paillet@st.com> > --- > 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 > +- <regulator>-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 = <IT_CURLIM_BUCK1 0>; > + interrupt-parent = <&pmic>; > + st,mask-reset; > + regulator-pull-down; > + regulator-min-microvolt = <700000>; > + regulator-max-microvolt = <1200000>; > + }; > + > + v3v3: buck4 { > + regulator-name = "v3v3"; > + interrupts = <IT_CURLIM_BUCK4 0>; > + 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
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. +- 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 +- interrupts: index of current limit detection interrupt +- <regulator>-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 = <IT_CURLIM_BUCK1 0>; + interrupt-parent = <&pmic>; + st,mask-reset; + regulator-pull-down; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1200000>; + }; + + v3v3: buck4 { + regulator-name = "v3v3"; + interrupts = <IT_CURLIM_BUCK4 0>; + interrupt-parent = <&mypmic>; + + 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; + }; +};