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Date: Tue, 3 Mar 2020 08:17:22 +0000
From: Benjamin GAIGNARD <benjamin.gaignard@...com>
To: Rob Herring <robh@...nel.org>
CC: "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
"mark.rutland@....com" <mark.rutland@....com>,
"lee.jones@...aro.org" <lee.jones@...aro.org>,
"lgirdwood@...il.com" <lgirdwood@...il.com>,
"broonie@...nel.org" <broonie@...nel.org>,
"wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
"linux@...ck-us.net" <linux@...ck-us.net>,
"Pascal PAILLET-LME" <p.paillet@...com>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>
Subject: Re: [PATCH v4] dt-bindings: mfd: Convert stpmic1 bindings to
json-schema
On 3/3/20 2:39 AM, Rob Herring wrote:
> On Fri, Feb 28, 2020 at 11:58:09AM +0100, Benjamin Gaignard wrote:
>> Convert stpmic1 bindings to json-schema.
>>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
>> ---
>> version 4:
>> - move on uppder node $ref: ../regulator/regulator.yaml
>> - move fixed strings under properties field
>> - remove unneeded () in patternProperties
>> - keep ldo3 separate from other ldo properties
>> Note:
>> - 'st,mask-reset' property stay in each subnode, I don't find
>> the syntax to avoid dupliquate it.
>> - ldo6-supply and all possible *-supply are describe by this regular
>> expression: ^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$":
>>
>> version 3:
>> - put $ref under allOf keyword
>> - for each regulator node add the list of supported regulator properties
>>
>> .../devicetree/bindings/input/st,stpmic1-onkey.txt | 28 --
>> .../devicetree/bindings/mfd/st,stpmic1.txt | 61 ----
>> .../devicetree/bindings/mfd/st,stpmic1.yaml | 338 +++++++++++++++++++++
>> .../bindings/regulator/st,stpmic1-regulator.txt | 64 ----
>> .../bindings/watchdog/st,stpmic1-wdt.txt | 11 -
>> 5 files changed, 338 insertions(+), 164 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/input/st,stpmic1-onkey.txt
>> delete mode 100644 Documentation/devicetree/bindings/mfd/st,stpmic1.txt
>> create mode 100644 Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
>> delete mode 100644 Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
>> delete mode 100644 Documentation/devicetree/bindings/watchdog/st,stpmic1-wdt.txt
>>
>> diff --git a/Documentation/devicetree/bindings/input/st,stpmic1-onkey.txt b/Documentation/devicetree/bindings/input/st,stpmic1-onkey.txt
>> deleted file mode 100644
>> index eb8e83736c02..000000000000
>> --- a/Documentation/devicetree/bindings/input/st,stpmic1-onkey.txt
>> +++ /dev/null
>> @@ -1,28 +0,0 @@
>> -STMicroelectronics STPMIC1 Onkey
>> -
>> -Required properties:
>> -
>> -- compatible = "st,stpmic1-onkey";
>> -- interrupts: interrupt line to use
>> -- interrupt-names = "onkey-falling", "onkey-rising"
>> - onkey-falling: happens when onkey is pressed; IT_PONKEY_F of pmic
>> - onkey-rising: happens when onkey is released; IT_PONKEY_R of pmic
>> -
>> -Optional properties:
>> -
>> -- st,onkey-clear-cc-flag: onkey is able power on after an
>> - over-current shutdown event.
>> -- st,onkey-pu-inactive: onkey pull up is not active
>> -- power-off-time-sec: Duration in seconds which the key should be kept
>> - pressed for device to power off automatically (from 1 to 16 seconds).
>> - see See Documentation/devicetree/bindings/input/input.yaml
>> -
>> -Example:
>> -
>> -onkey {
>> - compatible = "st,stpmic1-onkey";
>> - interrupt-parent = <&pmic>;
>> - interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
>> - interrupt-names = "onkey-falling", "onkey-rising";
>> - power-off-time-sec = <10>;
>> -};
>> diff --git a/Documentation/devicetree/bindings/mfd/st,stpmic1.txt b/Documentation/devicetree/bindings/mfd/st,stpmic1.txt
>> deleted file mode 100644
>> index afd45c089585..000000000000
>> --- a/Documentation/devicetree/bindings/mfd/st,stpmic1.txt
>> +++ /dev/null
>> @@ -1,61 +0,0 @@
>> -* STMicroelectronics STPMIC1 Power Management IC
>> -
>> -Required properties:
>> -- compatible: : "st,stpmic1"
>> -- reg: : The I2C slave address for the STPMIC1 chip.
>> -- interrupts: : The interrupt line the device is connected to.
>> -- #interrupt-cells: : Should be 1.
>> -- interrupt-controller: : Marks the device node as an interrupt controller.
>> - Interrupt numbers are defined at
>> - dt-bindings/mfd/st,stpmic1.h.
>> -
>> -STPMIC1 consists in a varied group of sub-devices.
>> -Each sub-device binding is be described in own documentation file.
>> -
>> -Device Description
>> ------- ------------
>> -st,stpmic1-onkey : Power on key, see ../input/st,stpmic1-onkey.txt
>> -st,stpmic1-regulators : Regulators, see ../regulator/st,stpmic1-regulator.txt
>> -st,stpmic1-wdt : Watchdog, see ../watchdog/st,stpmic1-wdt.txt
>> -
>> -Example:
>> -
>> -#include <dt-bindings/mfd/st,stpmic1.h>
>> -
>> -pmic: pmic@33 {
>> - compatible = "st,stpmic1";
>> - reg = <0x33>;
>> - interrupt-parent = <&gpioa>;
>> - interrupts = <0 2>;
>> -
>> - interrupt-controller;
>> - #interrupt-cells = <2>;
>> -
>> - onkey {
>> - compatible = "st,stpmic1-onkey";
>> - interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
>> - interrupt-names = "onkey-falling", "onkey-rising";
>> - power-off-time-sec = <10>;
>> - };
>> -
>> - watchdog {
>> - compatible = "st,stpmic1-wdt";
>> - };
>> -
>> - regulators {
>> - compatible = "st,stpmic1-regulators";
>> -
>> - vdd_core: buck1 {
>> - regulator-name = "vdd_core";
>> - regulator-boot-on;
>> - regulator-min-microvolt = <700000>;
>> - regulator-max-microvolt = <1200000>;
>> - };
>> - vdd: buck3 {
>> - regulator-name = "vdd";
>> - regulator-min-microvolt = <3300000>;
>> - regulator-max-microvolt = <3300000>;
>> - regulator-boot-on;
>> - regulator-pull-down;
>> - };
>> - };
>> diff --git a/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml b/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
>> new file mode 100644
>> index 000000000000..e9adcd04a48d
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/st,stpmic1.yaml
>> @@ -0,0 +1,338 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mfd/st,stpmic1.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: STMicroelectonics STPMIC1 Power Management IC bindings
>> +
>> +description: STMicroelectronics STPMIC1 Power Management IC
>> +
>> +maintainers:
>> + - pascal Paillet <p.paillet@...com>
>> +
>> +properties:
>> + compatible:
>> + const: st,stpmic1
>> +
>> + reg:
>> + const: 0x33
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + "#interrupt-cells":
>> + const: 2
>> +
>> + interrupt-controller: true
>> +
>> + onkey:
>> + type: object
>> +
>> + allOf:
>> + - $ref: ../input/input.yaml
>> +
>> + properties:
>> + compatible:
>> + const: st,stpmic1-onkey
>> +
>> + interrupts:
>> + items:
>> + - description: onkey-falling, happens when onkey is pressed. IT_PONKEY_F of pmic
>> + - description: onkey-rising, happens when onkey is released. IT_PONKEY_R of pmic
>> +
>> + interrupt-names:
>> + items:
>> + - const: onkey-falling
>> + - const: onkey-rising
>> +
>> + st,onkey-clear-cc-flag:
>> + description: onkey is able power on after an over-current shutdown event.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + st,onkey-pu-inactive:
>> + description: onkey pull up is not active
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + power-off-time-sec:
>> + minimum: 1
>> + maximum: 16
>> +
>> + required:
>> + - compatible
>> + - interrupts
>> + - interrupt-names
>> +
>> + additionalProperties: false
>> +
>> + watchdog:
>> + type: object
>> +
>> + allOf:
>> + - $ref: ../watchdog/watchdog.yaml
>> +
>> + properties:
>> + compatible:
>> + const: st,stpmic1-wdt
>> +
>> + timeout-sec: true
>> +
>> + required:
>> + - compatible
>> +
>> + additionalProperties: false
>> +
>> + regulators:
>> + type: object
>> +
>> + allOf:
>> + - $ref: ../regulator/regulator.yaml
> Sigh. Haven't I already said this was at the wrong level once before?
>
> My suggestion was to put this under
> "^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$".
Yes but "^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$" node doesn't
need regulators properties.
Only the nodes without '-supply' need these properties and they are at
the same level than the -supply nodes.
I have put the reference to the regulator upper as I can.
>
>> +
>> + description: |
>> + 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.
>> +
>> + properties:
>> + compatible:
>> + const: st,stpmic1-regulators
>> +
>> + ldo3:
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-min-microvolt: true
>> + regulator-max-microvolt: true
>> + regulator-allow-bypass: true
>> + regulator-over-current-protection: true
>> +
>> + additionalProperties: false
>> +
>> + ldo4:
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-over-current-protection: true
>> +
>> + additionalProperties: false
>> +
>> + patternProperties:
>> + "^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$":
>> + description: STPMIC1 voltage regulators supplies
>> +
>> + "^ldo[1-2,5-6]$":
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
> Move all these to a single definition under
> "^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$" and just do
> 'st,mask-reset: true' here.
Same here.
>
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-min-microvolt: true
>> + regulator-max-microvolt: true
>> + regulator-over-current-protection: true
>> + regulator-enable-ramp-delay: true
>> +
>> + additionalProperties: false
>> +
>> + "^buck[1-4]$":
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-min-microvolt: true
>> + regulator-max-microvolt: true
>> + regulator-initial-mode: true
>> + regulator-pull-down: true
>> + regulator-over-current-protection: true
>> + regulator-enable-ramp-delay: true
>> +
>> + additionalProperties: false
>> +
>> + "^vref_ddr$":
> Not a pattern.
I will fix that in v5
>
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> +
>> + additionalProperties: false
>> +
>> + "^boost$":
> And neither is this...
Ok
>
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + st,mask-reset:
>> + description: mask reset for this regulator,
>> + the regulator configuration is maintained during pmic reset.
>> + $ref: /schemas/types.yaml#/definitions/flag
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-over-current-protection: true
>> +
>> + additionalProperties: false
>> +
>> + "^pwr_sw[1-2]$":
>> + type: object
>> +
>> + properties:
>> + interrupts:
>> + maxItems: 1
>> +
>> + regulator-name: true
>> + regulator-boot-on: true
>> + regulator-always-on: true
>> + regulator-over-current-protection: true
>> + regulator-active-discharge: true
>> +
>> + additionalProperties: false
>> +
>> + required:
>> + - compatible
>> +
>> + additionalProperties: false
>> +
>> + additionalProperties: false
>> +
>> +additionalProperties: false
>> +
>> +required:
>> + - compatible
>> + - reg
>> + - interrupts
>> + - "#interrupt-cells"
>> + - interrupt-controller
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/mfd/st,stpmic1.h>
>> + #include <dt-bindings/interrupt-controller/arm-gic.h>
>> + i2c@0 {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + pmic@33 {
>> + compatible = "st,stpmic1";
>> + reg = <0x33>;
>> + interrupt-parent = <&gpioa>;
>> + interrupts = <0 2>;
>> +
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> +
>> + onkey {
>> + compatible = "st,stpmic1-onkey";
>> + interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
>> + interrupt-names = "onkey-falling", "onkey-rising";
>> + power-off-time-sec = <10>;
>> + };
>> +
>> + watchdog {
>> + compatible = "st,stpmic1-wdt";
>> + };
>> +
>> + regulators {
>> + compatible = "st,stpmic1-regulators";
>> +
>> + ldo6-supply = <&v3v3>;
>> +
>> + buck1 {
>> + regulator-name = "vdd_core";
>> + interrupts = <IT_CURLIM_BUCK1 0>;
>> + st,mask-reset;
>> + regulator-boot-on;
>> + regulator-min-microvolt = <700000>;
>> + regulator-max-microvolt = <1200000>;
>> + };
>> +
>> + buck3 {
>> + regulator-name = "vdd";
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + regulator-boot-on;
>> + regulator-pull-down;
>> + };
>> +
>> + buck4 {
>> + regulator-name = "v3v3";
>> + interrupts = <IT_CURLIM_BUCK4 0>;
>> + regulator-min-microvolt = <3300000>;
>> + regulator-max-microvolt = <3300000>;
>> + };
>> +
>> + ldo6 {
>> + regulator-name = "v1v8";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> + regulator-over-current-protection;
>> + };
>> + };
>> + };
>> + };
>> +
>> +...
>> diff --git a/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt b/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
>> deleted file mode 100644
>> index 6189df71ea98..000000000000
>> --- a/Documentation/devicetree/bindings/regulator/st,stpmic1-regulator.txt
>> +++ /dev/null
>> @@ -1,64 +0,0 @@
>> -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-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.
>> -- 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.
>> -- regulator-active-discharge: can be used on pwr_sw1 and pwr_sw2.
>> -
>> -Example:
>> -regulators {
>> - compatible = "st,stpmic1-regulators";
>> -
>> - ldo6-supply = <&v3v3>;
>> -
>> - vdd_core: buck1 {
>> - regulator-name = "vdd_core";
>> - interrupts = <IT_CURLIM_BUCK1 0>;
>> - st,mask-reset;
>> - regulator-pull-down;
>> - regulator-min-microvolt = <700000>;
>> - regulator-max-microvolt = <1200000>;
>> - };
>> -
>> - v3v3: buck4 {
>> - regulator-name = "v3v3";
>> - interrupts = <IT_CURLIM_BUCK4 0>;
>> -
>> - 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;
>> - };
>> -};
>> diff --git a/Documentation/devicetree/bindings/watchdog/st,stpmic1-wdt.txt b/Documentation/devicetree/bindings/watchdog/st,stpmic1-wdt.txt
>> deleted file mode 100644
>> index 7cc1407f15cb..000000000000
>> --- a/Documentation/devicetree/bindings/watchdog/st,stpmic1-wdt.txt
>> +++ /dev/null
>> @@ -1,11 +0,0 @@
>> -STMicroelectronics STPMIC1 Watchdog
>> -
>> -Required properties:
>> -
>> -- compatible : should be "st,stpmic1-wdt"
>> -
>> -Example:
>> -
>> -watchdog {
>> - compatible = "st,stpmic1-wdt";
>> -};
>> --
>> 2.15.0
>>
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