Re: [PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash
Hi Nicolas, On 1/26/21 3:04 PM, Nícolas F. R. A. Prado wrote: Add devicetree binding for QCOM SPMI Flash LEDs, which are part of PM8941, and are used both as lantern and camera flash. Signed-off-by: Nícolas F. R. A. Prado --- Changes in v2: - Add this commit .../bindings/leds/leds-qcom-spmi-flash.yaml | 94 +++ .../dt-bindings/leds/leds-qcom-spmi-flash.h | 15 +++ 2 files changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml create mode 100644 include/dt-bindings/leds/leds-qcom-spmi-flash.h diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml new file mode 100644 index ..169716e14f67 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml @@ -0,0 +1,94 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-qcom-spmi-flash.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SPMI Flash LEDs + +maintainers: + - Nícolas F. R. A. Prado + +description: | + The Qualcomm SPMI Flash LEDs are part of Qualcomm PMICs and are used primarily + as a camera or video flash. They can also be used as a lantern when on torch + mode. + The PMIC is connected to Host processor via SPMI bus. + +properties: + compatible: +const: qcom,spmi-flash + + reg: +maxItems: 1 + + flash-boost-supply: +description: SMBB regulator for LED flash mode + + torch-boost-supply: +description: SMBB regulator for LED torch mode + +patternProperties: + "^led[0-1]$": +type: object +$ref: common.yaml# + +properties: + qcom,clamp-curr: +description: current to clamp at, in uA You're already using led-max-microamp and flash-max-microamp, so I'm not sure how this is related to those. +$ref: /schemas/types.yaml#definitions/uint32 + + qcom,headroom: +description: | + headroom to use. Use one of QCOM_SPMI_FLASH_HEADROOM_* defined in + include/dt-bindings/leds/leds-qcom-spmi-flash.h More information would be welcome here on how it impacts device operation. +$ref: /schemas/types.yaml#definitions/uint32 +minimum: 0 +maximum: 3 + + qcom,startup-dly: +description: | + delay before flashing. Use one of QCOM_SPMI_FLASH_STARTUP_DLY_* + defined in include/dt-bindings/leds/leds-qcom-spmi-flash.h I don't see much gain in having this exposed. We don't have related constructs in the API to handle that, so I propose to always set it to 0 and not expose this setting at all. +$ref: /schemas/types.yaml#definitions/uint32 +minimum: 0 +maximum: 3 + + qcom,safety-timer: +description: include for safety timer use, otherwise watchdog timer will be used +type: boolean What's the difference between watchdog timer and safety timer? Either way, I propose to choose the option best fitting for handling flash timeout setting and hide this inside the driver. +required: + - compatible + - reg + - flash-boost-supply + - torch-boost-supply + +additionalProperties: false + +examples: + - | +#include +#include + +qcom,leds@d300 { +compatible = "qcom,spmi-flash"; +reg = <0xd300 0x100>; +flash-boost-supply = <_5vs1>; +torch-boost-supply = <_5v>; + +led0 { +led-sources = <0>; Please use reg property for this purpose instead. +function = LED_FUNCTION_FLASH; +color = ; +led-max-microamp = <20>; +flash-max-microamp = <100>; +flash-max-timeout-us = <128>; You should mention this properties above and provide constraints (min, max, step). +default-state = "off"; There's no point in having this in the example. +qcom,clamp-curr = <20>; > +qcom,headroom = ; +qcom,startup-dly = ; +qcom,safety-timer; +}; +}; +... diff --git a/include/dt-bindings/leds/leds-qcom-spmi-flash.h b/include/dt-bindings/leds/leds-qcom-spmi-flash.h new file mode 100644 index ..8bd54a8e831d --- /dev/null +++ b/include/dt-bindings/leds/leds-qcom-spmi-flash.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H +#define _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H + +#define QCOM_SPMI_FLASH_HEADROOM_250MV 0 +#define QCOM_SPMI_FLASH_HEADROOM_300MV 1 +#define QCOM_SPMI_FLASH_HEADROOM_400MV 2 +#define QCOM_SPMI_FLASH_HEADROOM_500MV 3 + +#define QCOM_SPMI_FLASH_STARTUP_DLY_10US 0 +#define QCOM_SPMI_FLASH_STARTUP_DLY_32US 1 +#define QCOM_SPMI_FLASH_STARTUP_DLY_64US 2 +#define QCOM_SPMI_FLASH_STARTUP_DLY_128US 3 + +#endif -- Best regards, Jacek Anaszewski
Re: [PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash
On Tue 26 Jan 08:04 CST 2021, N?colas F. R. A. Prado wrote: > Add devicetree binding for QCOM SPMI Flash LEDs, which are part of > PM8941, and are used both as lantern and camera flash. > > Signed-off-by: Nícolas F. R. A. Prado > --- > Changes in v2: > - Add this commit > > .../bindings/leds/leds-qcom-spmi-flash.yaml | 94 +++ > .../dt-bindings/leds/leds-qcom-spmi-flash.h | 15 +++ > 2 files changed, 109 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml > create mode 100644 include/dt-bindings/leds/leds-qcom-spmi-flash.h > > diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml > b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml > new file mode 100644 > index ..169716e14f67 > --- /dev/null > +++ b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml > @@ -0,0 +1,94 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/leds/leds-qcom-spmi-flash.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Qualcomm SPMI Flash LEDs > + > +maintainers: > + - Nícolas F. R. A. Prado > + > +description: | > + The Qualcomm SPMI Flash LEDs are part of Qualcomm PMICs and are used > primarily > + as a camera or video flash. They can also be used as a lantern when on > torch > + mode. > + The PMIC is connected to Host processor via SPMI bus. > + > +properties: > + compatible: > +const: qcom,spmi-flash > + > + reg: > +maxItems: 1 > + > + flash-boost-supply: > +description: SMBB regulator for LED flash mode > + > + torch-boost-supply: > +description: SMBB regulator for LED torch mode > + > +patternProperties: > + "^led[0-1]$": > +type: object > +$ref: common.yaml# > + > +properties: > + qcom,clamp-curr: > +description: current to clamp at, in uA > +$ref: /schemas/types.yaml#definitions/uint32 > + > + qcom,headroom: > +description: | > + headroom to use. Use one of QCOM_SPMI_FLASH_HEADROOM_* defined in > + include/dt-bindings/leds/leds-qcom-spmi-flash.h Please make the unit of this property millivolts, instead of describing it indirectly using the defines in the header file. > +$ref: /schemas/types.yaml#definitions/uint32 > +minimum: 0 > +maximum: 3 And you can then list out the valid values here. > + > + qcom,startup-dly: > +description: | > + delay before flashing. Use one of QCOM_SPMI_FLASH_STARTUP_DLY_* > + defined in include/dt-bindings/leds/leds-qcom-spmi-flash.h As above, please describe this in microseconds. > +$ref: /schemas/types.yaml#definitions/uint32 > +minimum: 0 > +maximum: 3 > + > + qcom,safety-timer: > +description: include for safety timer use, otherwise watchdog timer > will be used > +type: boolean > + > +required: > + - compatible > + - reg > + - flash-boost-supply > + - torch-boost-supply > + > +additionalProperties: false > + > +examples: > + - | > +#include > +#include > + > +qcom,leds@d300 { Please no "qcom," in the node name. Regards, Bjorn > +compatible = "qcom,spmi-flash"; > +reg = <0xd300 0x100>; > +flash-boost-supply = <_5vs1>; > +torch-boost-supply = <_5v>; > + > +led0 { > +led-sources = <0>; > +function = LED_FUNCTION_FLASH; > +color = ; > +led-max-microamp = <20>; > +flash-max-microamp = <100>; > +flash-max-timeout-us = <128>; > +default-state = "off"; > +qcom,clamp-curr = <20>; > +qcom,headroom = ; > +qcom,startup-dly = ; > +qcom,safety-timer; > +}; > +}; > +... > diff --git a/include/dt-bindings/leds/leds-qcom-spmi-flash.h > b/include/dt-bindings/leds/leds-qcom-spmi-flash.h > new file mode 100644 > index ..8bd54a8e831d > --- /dev/null > +++ b/include/dt-bindings/leds/leds-qcom-spmi-flash.h > @@ -0,0 +1,15 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +#ifndef _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H > +#define _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H > + > +#define QCOM_SPMI_FLASH_HEADROOM_250MV 0 > +#define QCOM_SPMI_FLASH_HEADROOM_300MV 1 > +#define QCOM_SPMI_FLASH_HEADROOM_400MV 2 > +#define QCOM_SPMI_FLASH_HEADROOM_500MV 3 > + > +#define QCOM_SPMI_FLASH_STARTUP_DLY_10US 0 > +#define QCOM_SPMI_FLASH_STARTUP_DLY_32US 1 > +#define QCOM_SPMI_FLASH_STARTUP_DLY_64US 2 > +#define QCOM_SPMI_FLASH_STARTUP_DLY_128US3 > + > +#endif > -- > 2.30.0 > >
Re: [PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash
On Tue, 26 Jan 2021 14:04:08 +, NÃcolas F. R. A. Prado wrote: > Add devicetree binding for QCOM SPMI Flash LEDs, which are part of > PM8941, and are used both as lantern and camera flash. > > Signed-off-by: NÃcolas F. R. A. Prado > --- > Changes in v2: > - Add this commit > > .../bindings/leds/leds-qcom-spmi-flash.yaml | 94 +++ > .../dt-bindings/leds/leds-qcom-spmi-flash.h | 15 +++ > 2 files changed, 109 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml > create mode 100644 include/dt-bindings/leds/leds-qcom-spmi-flash.h > My bot found errors running 'make dt_binding_check' on your patch: yamllint warnings/errors: dtschema/dtc warnings/errors: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,startup-dly: 'oneOf' conditional failed, one must be fixed: 'type' is a required property Additional properties are not allowed ('maximum', '$ref', 'minimum' were unexpected) /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,startup-dly: 'oneOf' conditional failed, one must be fixed: 'enum' is a required property 'const' is a required property '/schemas/types.yaml#definitions/uint32' does not match 'types.yaml#/definitions/' /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,clamp-curr: 'oneOf' conditional failed, one must be fixed: 'type' is a required property Additional properties are not allowed ('$ref' was unexpected) /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,clamp-curr: 'oneOf' conditional failed, one must be fixed: 'enum' is a required property 'const' is a required property '/schemas/types.yaml#definitions/uint32' does not match 'types.yaml#/definitions/' /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,headroom: 'oneOf' conditional failed, one must be fixed: 'type' is a required property Additional properties are not allowed ('maximum', '$ref', 'minimum' were unexpected) /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: patternProperties:^led[0-1]$:properties:qcom,headroom: 'oneOf' conditional failed, one must be fixed: 'enum' is a required property 'const' is a required property '/schemas/types.yaml#definitions/uint32' does not match 'types.yaml#/definitions/' /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml: ignoring, error in schema: patternProperties: ^led[0-1]$: properties: qcom,startup-dly warning: no schema found in file: ./Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml See https://patchwork.ozlabs.org/patch/1431711 This check can fail if there are any dependencies. The base for a patch series is generally the most recent rc1. If you already ran 'make dt_binding_check' and didn't see the above error(s), then make sure 'yamllint' is installed and dt-schema is up to date: pip3 install dtschema --upgrade Please check and re-submit.
[PATCH v2 1/4] dt-bindings: leds: Add binding for qcom-spmi-flash
Add devicetree binding for QCOM SPMI Flash LEDs, which are part of PM8941, and are used both as lantern and camera flash. Signed-off-by: Nícolas F. R. A. Prado --- Changes in v2: - Add this commit .../bindings/leds/leds-qcom-spmi-flash.yaml | 94 +++ .../dt-bindings/leds/leds-qcom-spmi-flash.h | 15 +++ 2 files changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml create mode 100644 include/dt-bindings/leds/leds-qcom-spmi-flash.h diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml new file mode 100644 index ..169716e14f67 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-qcom-spmi-flash.yaml @@ -0,0 +1,94 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/leds-qcom-spmi-flash.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SPMI Flash LEDs + +maintainers: + - Nícolas F. R. A. Prado + +description: | + The Qualcomm SPMI Flash LEDs are part of Qualcomm PMICs and are used primarily + as a camera or video flash. They can also be used as a lantern when on torch + mode. + The PMIC is connected to Host processor via SPMI bus. + +properties: + compatible: +const: qcom,spmi-flash + + reg: +maxItems: 1 + + flash-boost-supply: +description: SMBB regulator for LED flash mode + + torch-boost-supply: +description: SMBB regulator for LED torch mode + +patternProperties: + "^led[0-1]$": +type: object +$ref: common.yaml# + +properties: + qcom,clamp-curr: +description: current to clamp at, in uA +$ref: /schemas/types.yaml#definitions/uint32 + + qcom,headroom: +description: | + headroom to use. Use one of QCOM_SPMI_FLASH_HEADROOM_* defined in + include/dt-bindings/leds/leds-qcom-spmi-flash.h +$ref: /schemas/types.yaml#definitions/uint32 +minimum: 0 +maximum: 3 + + qcom,startup-dly: +description: | + delay before flashing. Use one of QCOM_SPMI_FLASH_STARTUP_DLY_* + defined in include/dt-bindings/leds/leds-qcom-spmi-flash.h +$ref: /schemas/types.yaml#definitions/uint32 +minimum: 0 +maximum: 3 + + qcom,safety-timer: +description: include for safety timer use, otherwise watchdog timer will be used +type: boolean + +required: + - compatible + - reg + - flash-boost-supply + - torch-boost-supply + +additionalProperties: false + +examples: + - | +#include +#include + +qcom,leds@d300 { +compatible = "qcom,spmi-flash"; +reg = <0xd300 0x100>; +flash-boost-supply = <_5vs1>; +torch-boost-supply = <_5v>; + +led0 { +led-sources = <0>; +function = LED_FUNCTION_FLASH; +color = ; +led-max-microamp = <20>; +flash-max-microamp = <100>; +flash-max-timeout-us = <128>; +default-state = "off"; +qcom,clamp-curr = <20>; +qcom,headroom = ; +qcom,startup-dly = ; +qcom,safety-timer; +}; +}; +... diff --git a/include/dt-bindings/leds/leds-qcom-spmi-flash.h b/include/dt-bindings/leds/leds-qcom-spmi-flash.h new file mode 100644 index ..8bd54a8e831d --- /dev/null +++ b/include/dt-bindings/leds/leds-qcom-spmi-flash.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H +#define _DT_BINDINGS_LEDS_QCOM_SPMI_FLASH_H + +#define QCOM_SPMI_FLASH_HEADROOM_250MV 0 +#define QCOM_SPMI_FLASH_HEADROOM_300MV 1 +#define QCOM_SPMI_FLASH_HEADROOM_400MV 2 +#define QCOM_SPMI_FLASH_HEADROOM_500MV 3 + +#define QCOM_SPMI_FLASH_STARTUP_DLY_10US 0 +#define QCOM_SPMI_FLASH_STARTUP_DLY_32US 1 +#define QCOM_SPMI_FLASH_STARTUP_DLY_64US 2 +#define QCOM_SPMI_FLASH_STARTUP_DLY_128US 3 + +#endif -- 2.30.0