Messages in this thread | | | Date | Thu, 24 Dec 2020 12:27:24 +0530 | From | kgunda@codeauro ... | Subject | Re: [PATCH V4 1/2] mfd: qcom-spmi-pmic: Convert bindings to .yaml format |
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On 2020-12-20 05:17, Stephen Boyd wrote: > Quoting Kiran Gunda (2020-12-18 00:14:51) >> Convert the bindings from .txt to .yaml format. >> >> Signed-off-by: Kiran Gunda <kgunda@codeaurora.org> >> --- >> .../devicetree/bindings/mfd/qcom,spmi-pmic.txt | 80 >> ------------- >> .../devicetree/bindings/mfd/qcom,spmi-pmic.yaml | 127 >> +++++++++++++++++++++ >> 2 files changed, 127 insertions(+), 80 deletions(-) >> delete mode 100644 >> Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt >> create mode 100644 >> Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml >> >> diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt >> b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt >> deleted file mode 100644 >> index 79367a4..0000000 >> --- a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt >> +++ /dev/null >> @@ -1,80 +0,0 @@ >> - Qualcomm SPMI PMICs multi-function device bindings >> - >> -The Qualcomm SPMI series presently includes PM8941, PM8841 and >> PMA8084 >> -PMICs. These PMICs use a QPNP scheme through SPMI interface. >> -QPNP is effectively a partitioning scheme for dividing the SPMI >> extended >> -register space up into logical pieces, and set of fixed register >> -locations/definitions within these regions, with some of these >> regions >> -specifically used for interrupt handling. >> - >> -The QPNP PMICs are used with the Qualcomm Snapdragon series SoCs, and >> are >> -interfaced to the chip via the SPMI (System Power Management >> Interface) bus. >> -Support for multiple independent functions are implemented by >> splitting the >> -16-bit SPMI slave address space into 256 smaller fixed-size regions, >> 256 bytes >> -each. A function can consume one or more of these fixed-size register >> regions. >> - >> -Required properties: >> -- compatible: Should contain one of: >> - "qcom,pm8941", >> - "qcom,pm8841", >> - "qcom,pma8084", >> - "qcom,pm8019", >> - "qcom,pm8226", >> - "qcom,pm8110", >> - "qcom,pma8084", >> - "qcom,pmi8962", >> - "qcom,pmd9635", >> - "qcom,pm8994", >> - "qcom,pmi8994", >> - "qcom,pm8916", >> - "qcom,pm8004", >> - "qcom,pm8909", >> - "qcom,pm8950", >> - "qcom,pmi8950", >> - "qcom,pm8998", >> - "qcom,pmi8998", >> - "qcom,pm8005", >> - or generalized "qcom,spmi-pmic". >> -- reg: Specifies the SPMI USID slave address for this >> device. >> - For more information see: >> - Documentation/devicetree/bindings/spmi/spmi.yaml >> - >> -Required properties for peripheral child nodes: >> -- compatible: Should contain "qcom,xxx", where "xxx" is a >> peripheral name. >> - >> -Optional properties for peripheral child nodes: >> -- interrupts: Interrupts are specified as a 4-tuple. For more >> information >> - see: >> - >> Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt >> -- interrupt-names: Corresponding interrupt name to the interrupts >> property >> - >> -Each child node of SPMI slave id represents a function of the PMIC. >> In the >> -example below the rtc device node represents a peripheral of pm8941 >> -SID = 0. The regulator device node represents a peripheral of pm8941 >> SID = 1. >> - >> -Example: >> - >> - spmi { >> - compatible = "qcom,spmi-pmic-arb"; >> - >> - pm8941@0 { >> - compatible = "qcom,pm8941", "qcom,spmi-pmic"; >> - reg = <0x0 SPMI_USID>; >> - >> - rtc { >> - compatible = "qcom,rtc"; >> - interrupts = <0x0 0x61 0x1 >> IRQ_TYPE_EDGE_RISING>; >> - interrupt-names = "alarm"; >> - }; >> - }; >> - >> - pm8941@1 { >> - compatible = "qcom,pm8941", "qcom,spmi-pmic"; >> - reg = <0x1 SPMI_USID>; >> - >> - regulator { >> - compatible = "qcom,regulator"; >> - regulator-name = "8941_boost"; >> - }; >> - }; >> - }; >> diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml >> b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml >> new file mode 100644 >> index 0000000..e458dd1 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml >> @@ -0,0 +1,127 @@ >> +# SPDX-License-Identifier: GPL-2.0 >> +%YAML 1.2 >> +--- >> +$id: http://devicetree.org/schemas/mfd/qcom,spmi-pmic.yaml# >> +$schema: http://devicetree.org/meta-schemas/core.yaml# >> + >> +title: Qualcomm SPMI PMICs multi-function device bindings >> + >> +maintainers: >> + - Stephen Boyd <sboyd@kernel.org> > > Someone at Qualcomm should be the maintainer here. Maybe you? > >> + >> +description: | >> + The Qualcomm SPMI PMICs use a QPNP scheme through SPMI interface. > > What is QPNP? > Qualcomm Plug And Play. >> + QPNP is effectively a partitioning scheme for dividing the SPMI >> extended >> + register space up into logical pieces, and set of fixed register >> + locations/definitions within these regions, with some of these >> regions >> + specifically used for interrupt handling. >> + >> + The QPNP PMICs are used with the Qualcomm Snapdragon series SoCs, >> and are >> + interfaced to the chip via the SPMI (System Power Management >> Interface) bus. >> + Support for multiple independent functions are implemented by >> splitting the >> + 16-bit SPMI slave address space into 256 smaller fixed-size >> regions, 256 bytes >> + each. A function can consume one or more of these fixed-size >> register regions. >> + >> +properties: >> + spmi_bus: >> + type: object >> + description: SPMI bus node >> + >> +patternProperties: >> + "^pmic@[0-9]$": >> + description: Child PMIC nodes >> + type: object >> + >> + properties: >> + compatible: >> + items: >> + - enum: >> + # Sorted based on subtype ID the device reports >> + - qcom,pm8941 >> + - qcom,pm8841 >> + - qcom,pma8084 >> + - qcom,pm8019 >> + - qcom,pm8226 >> + - qcom,pm8110 >> + - qcom,pma8084 >> + - qcom,pmi8962 >> + - qcom,pmd9635 >> + - qcom,pm8994 >> + - qcom,pmi8994 >> + - qcom,pm8916 >> + - qcom,pm8004 >> + - qcom,pm8909 >> + - qcom,pm8950 >> + - qcom,pmi8950 >> + - qcom,pm8998 >> + - qcom,pmi8998 >> + - qcom,pm8005 >> + - qcom,pm660l >> + - qcom,pm660 >> + >> + - enum: >> + - qcom,spmi-pmic >> + >> + reg: >> + maxItems: 1 >> + description: >> + Specifies the SPMI USID slave address for this device. >> + For more information see bindings/spmi/spmi.txt >> + >> + patternProperties: >> + "@[0-9a-f]$": > > Is that @ sign supposed to be a ^ sign? I thought the child nodes of a > pmic node were [a-zA-Z0-9-] or some sort of regex like that. Certainly > not an address that doesn't exist. They look to be things like 'rtc' or > 'regulator'. > Will fix it in next series. >> + description: >> + Each child node of SPMI slave id represents a function of >> the PMIC. >> + In the example below the rtc device node represents a >> peripheral of >> + pm8941 SID = 0. The regulator device node represents a >> peripheral of >> + pm8941 SID = 1. >> + type: object >> + >> + properties: >> + interrupts: >> + maxItems: 4 >> + description: >> + Interrupts are specified as a 4-tuple. For more >> information > > Seems like minItems is also 4 though, so should be a const 4 instead? > But then this is about how many interrupts there are, which would be 1 > or 2? It really can't be known in case there are many interrupts for a > child node so not sure we need to specify anything. > >> + see bindings/spmi/qcom,spmi-pmic-arb.txt >> + >> + interrupt-names: >> + description: >> + Corresponding interrupt name to the interrupts property > > I suspect we should drop these two properties and leave them up to the > binding for the function, like rtc, or regualator, etc. > Okay. I will remove these properties. >> + >> + required: >> + - compatible >> + - reg >> + >> +additionalProperties: false >> + >> +examples: >> + - | >> + #include <dt-bindings/spmi/spmi.h> >> + >> + spmi_bus { >> + compatible = "qcom,spmi-pmic-arb"; >> + #address-cells = <2>; >> + #size-cells = <0>; >> + >> + pmic@0 { >> + compatible = "qcom,pm8941"; >> + reg = <0x0 SPMI_USID>; >> + >> + rtc { >> + compatible = "qcom,rtc"; >> + interrupts = <0x0 0x61 0x1 0x1>; >> + interrupt-names = "alarm"; >> + }; >> + }; >> + >> + pmic@1 { >> + compatible = "qcom,pm8941"; >> + reg = <0x1 SPMI_USID>; >> + >> + regulator { >> + compatible = "qcom,regulator"; >> + regulator-name = "8941_boost"; >> + }; >> + }; >> + }; >> +...
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