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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: satya priya <skakit@codeaurora.org>
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>,
	kgunda@codeaurora.org, linux-gpio@vger.kernel.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-msm@vger.kernel.org
Subject: Re: [RESEND PATCH V4] dt-bindings: pinctrl: qcom-pmic-gpio: Convert qcom pmic gpio bindings to YAML
Date: Thu, 10 Jun 2021 23:10:42 -0500	[thread overview]
Message-ID: <YMLiQmHZk6AElgnH@builder.lan> (raw)
In-Reply-To: <1623316557-7810-1-git-send-email-skakit@codeaurora.org>

On Thu 10 Jun 04:15 CDT 2021, satya priya wrote:

> Convert Qualcomm PMIC GPIO bindings from .txt to .yaml format.
> 
> Signed-off-by: satya priya <skakit@codeaurora.org>
> Reviewed-by: Rob Herring <robh@kernel.org>

Please see my feedback on v3, before this can be merged.

Regards,
Bjorn

> ---
> Changes in V2:
>  - As per Rob's comments fixed bot erros.
>  - Moved this patch to end of the series so that other patches are not
>    blocked on this.
> 
> Changes in V3:
>  - As per Rob's comments, added maxItems for reg and interrupts.
>    Added reference of "pinmux-node.yaml" and "pincfg-node.yaml".
>    Made 'additionalProperties' as false.
> 
> Changes in V4:
>  - As per Rob's comments, added description for interrupts, defined
>    constraints for "qcom,drive-strength", dropped description for function
>    property.
> 
> Changes in RESEND V4:
>  - Rebased on linux-next and sent.
> 
>  .../devicetree/bindings/pinctrl/qcom,pmic-gpio.txt | 288 ---------------------
>  .../bindings/pinctrl/qcom,pmic-gpio.yaml           | 256 ++++++++++++++++++
>  2 files changed, 256 insertions(+), 288 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
> deleted file mode 100644
> index 161216d..0000000
> --- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt
> +++ /dev/null
> @@ -1,288 +0,0 @@
> -Qualcomm PMIC GPIO block
> -
> -This binding describes the GPIO block(s) found in the 8xxx series of
> -PMIC's from Qualcomm.
> -
> -- compatible:
> -	Usage: required
> -	Value type: <string>
> -	Definition: must be one of:
> -		    "qcom,pm8005-gpio"
> -		    "qcom,pm8018-gpio"
> -		    "qcom,pm8038-gpio"
> -		    "qcom,pm8058-gpio"
> -		    "qcom,pm8916-gpio"
> -		    "qcom,pm8917-gpio"
> -		    "qcom,pm8921-gpio"
> -		    "qcom,pm8941-gpio"
> -		    "qcom,pm8950-gpio"
> -		    "qcom,pm8994-gpio"
> -		    "qcom,pm8998-gpio"
> -		    "qcom,pma8084-gpio"
> -		    "qcom,pmi8950-gpio"
> -		    "qcom,pmi8994-gpio"
> -		    "qcom,pmi8998-gpio"
> -		    "qcom,pms405-gpio"
> -		    "qcom,pm660-gpio"
> -		    "qcom,pm660l-gpio"
> -		    "qcom,pm8150-gpio"
> -		    "qcom,pm8150b-gpio"
> -		    "qcom,pm8350-gpio"
> -		    "qcom,pm8350b-gpio"
> -		    "qcom,pm8350c-gpio"
> -		    "qcom,pmk8350-gpio"
> -		    "qcom,pm7325-gpio"
> -		    "qcom,pmr735a-gpio"
> -		    "qcom,pmr735b-gpio"
> -		    "qcom,pm6150-gpio"
> -		    "qcom,pm6150l-gpio"
> -		    "qcom,pm8008-gpio"
> -		    "qcom,pmx55-gpio"
> -
> -		    And must contain either "qcom,spmi-gpio" or "qcom,ssbi-gpio"
> -		    if the device is on an spmi bus or an ssbi bus respectively
> -
> -- reg:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: Register base of the GPIO block and length.
> -
> -- interrupts:
> -	Usage: required
> -	Value type: <prop-encoded-array>
> -	Definition: Must contain an array of encoded interrupt specifiers for
> -		    each available GPIO
> -
> -- gpio-controller:
> -	Usage: required
> -	Value type: <none>
> -	Definition: Mark the device node as a GPIO controller
> -
> -- #gpio-cells:
> -	Usage: required
> -	Value type: <u32>
> -	Definition: Must be 2;
> -		    the first cell will be used to define gpio number and the
> -		    second denotes the flags for this gpio
> -
> -Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for
> -a general description of GPIO and interrupt bindings.
> -
> -Please refer to pinctrl-bindings.txt in this directory for details of the
> -common pinctrl bindings used by client devices, including the meaning of the
> -phrase "pin configuration node".
> -
> -The pin configuration nodes act as a container for an arbitrary number of
> -subnodes. Each of these subnodes represents some desired configuration for a
> -pin or a list of pins. This configuration can include the
> -mux function to select on those pin(s), and various pin configuration
> -parameters, as listed below.
> -
> -
> -SUBNODES:
> -
> -The name of each subnode is not important; all subnodes should be enumerated
> -and processed purely based on their content.
> -
> -Each subnode only affects those parameters that are explicitly listed. In
> -other words, a subnode that lists a mux function but no pin configuration
> -parameters implies no information about any pin configuration parameters.
> -Similarly, a pin subnode that describes a pullup parameter implies no
> -information about e.g. the mux function.
> -
> -The following generic properties as defined in pinctrl-bindings.txt are valid
> -to specify in a pin configuration subnode:
> -
> -- pins:
> -	Usage: required
> -	Value type: <string-array>
> -	Definition: List of gpio pins affected by the properties specified in
> -		    this subnode.  Valid pins are:
> -		    gpio1-gpio4 for pm8005
> -		    gpio1-gpio6 for pm8018
> -		    gpio1-gpio12 for pm8038
> -		    gpio1-gpio40 for pm8058
> -		    gpio1-gpio4 for pm8916
> -		    gpio1-gpio38 for pm8917
> -		    gpio1-gpio44 for pm8921
> -		    gpio1-gpio36 for pm8941
> -		    gpio1-gpio8 for pm8950 (hole on gpio3)
> -		    gpio1-gpio22 for pm8994
> -		    gpio1-gpio26 for pm8998
> -		    gpio1-gpio22 for pma8084
> -		    gpio1-gpio2 for pmi8950
> -		    gpio1-gpio10 for pmi8994
> -		    gpio1-gpio12 for pms405 (holes on gpio1, gpio9 and gpio10)
> -		    gpio1-gpio10 for pm8150 (holes on gpio2, gpio5, gpio7
> -					     and gpio8)
> -		    gpio1-gpio12 for pm8150b (holes on gpio3, gpio4, gpio7)
> -		    gpio1-gpio12 for pm8150l (hole on gpio7)
> -		    gpio1-gpio10 for pm8350
> -		    gpio1-gpio8 for pm8350b
> -		    gpio1-gpio9 for pm8350c
> -		    gpio1-gpio4 for pmk8350
> -		    gpio1-gpio10 for pm7325
> -		    gpio1-gpio4 for pmr735a
> -		    gpio1-gpio4 for pmr735b
> -		    gpio1-gpio10 for pm6150
> -		    gpio1-gpio12 for pm6150l
> -		    gpio1-gpio2 for pm8008
> -		    gpio1-gpio11 for pmx55 (holes on gpio3, gpio7, gpio10
> -					    and gpio11)
> -
> -- function:
> -	Usage: required
> -	Value type: <string>
> -	Definition: Specify the alternative function to be configured for the
> -		    specified pins.  Valid values are:
> -		    "normal",
> -		    "paired",
> -		    "func1",
> -		    "func2",
> -		    "dtest1",
> -		    "dtest2",
> -		    "dtest3",
> -		    "dtest4",
> -		    And following values are supported by LV/MV GPIO subtypes:
> -		    "func3",
> -		    "func4"
> -
> -- bias-disable:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins should be configured as no pull.
> -
> -- bias-pull-down:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins should be configured as pull down.
> -
> -- bias-pull-up:
> -	Usage: optional
> -	Value type: <empty>
> -	Definition: The specified pins should be configured as pull up.
> -
> -- qcom,pull-up-strength:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: Specifies the strength to use for pull up, if selected.
> -		    Valid values are; as defined in
> -		    <dt-bindings/pinctrl/qcom,pmic-gpio.h>:
> -		    1: 30uA                     (PMIC_GPIO_PULL_UP_30)
> -		    2: 1.5uA                    (PMIC_GPIO_PULL_UP_1P5)
> -		    3: 31.5uA                   (PMIC_GPIO_PULL_UP_31P5)
> -		    4: 1.5uA + 30uA boost       (PMIC_GPIO_PULL_UP_1P5_30)
> -		    If this property is omitted 30uA strength will be used if
> -		    pull up is selected
> -
> -- bias-high-impedance:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins will put in high-Z mode and disabled.
> -
> -- input-enable:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are put in input mode.
> -
> -- output-high:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in output mode, driven
> -		    high.
> -
> -- output-low:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in output mode, driven
> -		    low.
> -
> -- power-source:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: Selects the power source for the specified pins. Valid
> -		    power sources are defined per chip in
> -		    <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> -
> -- qcom,drive-strength:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: Selects the drive strength for the specified pins. Value
> -		    drive strengths are:
> -		    0: no (PMIC_GPIO_STRENGTH_NO)
> -		    1: high (PMIC_GPIO_STRENGTH_HIGH) 0.9mA @ 1.8V - 1.9mA @ 2.6V
> -		    2: medium (PMIC_GPIO_STRENGTH_MED) 0.6mA @ 1.8V - 1.25mA @ 2.6V
> -		    3: low (PMIC_GPIO_STRENGTH_LOW) 0.15mA @ 1.8V - 0.3mA @ 2.6V
> -		    as defined in <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> -
> -- drive-push-pull:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in push-pull mode.
> -
> -- drive-open-drain:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in open-drain mode.
> -
> -- drive-open-source:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in open-source mode.
> -
> -- qcom,analog-pass:
> -	Usage: optional
> -	Value type: <none>
> -	Definition: The specified pins are configured in analog-pass-through mode.
> -
> -- qcom,atest:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: Selects ATEST rail to route to GPIO when it's configured
> -		    in analog-pass-through mode.
> -		    Valid values are 1-4 corresponding to ATEST1 to ATEST4.
> -
> -- qcom,dtest-buffer:
> -	Usage: optional
> -	Value type: <u32>
> -	Definition: Selects DTEST rail to route to GPIO when it's configured
> -		    as digital input.
> -		    Valid values are 1-4 corresponding to DTEST1 to DTEST4.
> -
> -Example:
> -
> -	pm8921_gpio: gpio@150 {
> -		compatible = "qcom,pm8921-gpio", "qcom,ssbi-gpio";
> -		reg = <0x150 0x160>;
> -		interrupts = <192 1>, <193 1>, <194 1>,
> -			     <195 1>, <196 1>, <197 1>,
> -			     <198 1>, <199 1>, <200 1>,
> -			     <201 1>, <202 1>, <203 1>,
> -			     <204 1>, <205 1>, <206 1>,
> -			     <207 1>, <208 1>, <209 1>,
> -			     <210 1>, <211 1>, <212 1>,
> -			     <213 1>, <214 1>, <215 1>,
> -			     <216 1>, <217 1>, <218 1>,
> -			     <219 1>, <220 1>, <221 1>,
> -			     <222 1>, <223 1>, <224 1>,
> -			     <225 1>, <226 1>, <227 1>,
> -			     <228 1>, <229 1>, <230 1>,
> -			     <231 1>, <232 1>, <233 1>,
> -			     <234 1>, <235 1>;
> -
> -		gpio-controller;
> -		#gpio-cells = <2>;
> -
> -		pm8921_gpio_keys: gpio-keys {
> -			volume-keys {
> -				pins = "gpio20", "gpio21";
> -				function = "normal";
> -
> -				input-enable;
> -				bias-pull-up;
> -				drive-push-pull;
> -				qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
> -				power-source = <PM8921_GPIO_S4>;
> -			};
> -		};
> -	};
> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
> new file mode 100644
> index 0000000..d9024eb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
> @@ -0,0 +1,256 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/qcom,pmic-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm PMIC GPIO block
> +
> +maintainers:
> +  - Bjorn Andersson <bjorn.andersson@sonymobile.com>
> +
> +description: |
> +  This binding describes the GPIO block(s) found in the 8xxx series of
> +  PMIC's from Qualcomm.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - qcom,pm8005-gpio
> +          - qcom,pm8018-gpio
> +          - qcom,pm8038-gpio
> +          - qcom,pm8058-gpio
> +          - qcom,pm8916-gpio
> +          - qcom,pm8917-gpio
> +          - qcom,pm8921-gpio
> +          - qcom,pm8941-gpio
> +          - qcom,pm8950-gpio
> +          - qcom,pm8994-gpio
> +          - qcom,pm8998-gpio
> +          - qcom,pma8084-gpio
> +          - qcom,pmi8950-gpio
> +          - qcom,pmi8994-gpio
> +          - qcom,pmi8998-gpio
> +          - qcom,pms405-gpio
> +          - qcom,pm660-gpio
> +          - qcom,pm660l-gpio
> +          - qcom,pm8150-gpio
> +          - qcom,pm8150b-gpio
> +          - qcom,pm8350-gpio
> +          - qcom,pm8350b-gpio
> +          - qcom,pm8350c-gpio
> +          - qcom,pmk8350-gpio
> +          - qcom,pm6150-gpio
> +          - qcom,pm6150l-gpio
> +          - qcom,pm7325-gpio
> +          - qcom,pmr735a-gpio
> +          - qcom,pmr735b-gpio
> +          - qcom,pm8008-gpio
> +          - qcom,pmx55-gpio
> +
> +      - enum:
> +          - qcom,spmi-gpio
> +          - qcom,ssbi-gpio
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    minItems: 1
> +    maxItems: 44
> +    description: |
> +        Must contain an array of encoded interrupt specifiers for
> +        each available GPIO
> +
> +  '#interrupt-cells':
> +    const: 2
> +
> +  interrupt-controller: true
> +
> +  gpio-controller: true
> +
> +  gpio-ranges:
> +    maxItems: 1
> +
> +  '#gpio-cells':
> +    const: 2
> +    description: |
> +        The first cell will be used to define gpio number and the
> +        second denotes the flags for this gpio
> +
> +  gpio-keys:
> +    type: object
> +    properties:
> +      volume-keys:
> +        type: object
> +        anyOf:
> +          - $ref: "pinmux-node.yaml"
> +          - $ref: "pincfg-node.yaml"
> +        properties:
> +          pins:
> +            description: |
> +                List of gpio pins affected by the properties specified in
> +                this subnode.  Valid pins are
> +                     - gpio1-gpio4 for pm8005
> +                     - gpio1-gpio6 for pm8018
> +                     - gpio1-gpio12 for pm8038
> +                     - gpio1-gpio40 for pm8058
> +                     - gpio1-gpio4 for pm8916
> +                     - gpio1-gpio38 for pm8917
> +                     - gpio1-gpio44 for pm8921
> +                     - gpio1-gpio36 for pm8941
> +                     - gpio1-gpio8 for pm8950 (hole on gpio3)
> +                     - gpio1-gpio22 for pm8994
> +                     - gpio1-gpio26 for pm8998
> +                     - gpio1-gpio22 for pma8084
> +                     - gpio1-gpio2 for pmi8950
> +                     - gpio1-gpio10 for pmi8994
> +                     - gpio1-gpio12 for pms405 (holes on gpio1, gpio9
> +                                                and gpio10)
> +                     - gpio1-gpio10 for pm8150 (holes on gpio2, gpio5,
> +                                                gpio7 and gpio8)
> +                     - gpio1-gpio12 for pm8150b (holes on gpio3, gpio4
> +                                                 and gpio7)
> +                     - gpio1-gpio12 for pm8150l (hole on gpio7)
> +                     - gpio1-gpio10 for pm8350
> +                     - gpio1-gpio8 for pm8350b
> +                     - gpio1-gpio9 for pm8350c
> +                     - gpio1-gpio4 for pmk8350
> +                     - gpio1-gpio10 for pm6150
> +                     - gpio1-gpio12 for pm6150l
> +                     - gpio1-gpio10 for pm7325
> +                     - gpio1-gpio4 for pmr735a
> +                     - gpio1-gpio4 for pmr735b
> +                     - gpio1-gpio2 for pm8008
> +                     - gpio1-gpio11 for pmx55 (holes on gpio3, gpio7, gpio10
> +                                                and gpio11)
> +
> +            items:
> +              pattern: "^gpio([0-9]+)$"
> +
> +          function:
> +            items:
> +              - enum:
> +                  - normal
> +                  - paired
> +                  - func1
> +                  - func2
> +                  - dtest1
> +                  - dtest2
> +                  - dtest3
> +                  - dtest4
> +                  - func3  # supported by LV/MV GPIO subtypes
> +                  - func4  # supported by LV/MV GPIO subtypes
> +
> +          bias-disable: true
> +
> +          bias-pull-down: true
> +
> +          bias-pull-up: true
> +
> +          qcom,pull-up-strength:
> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            description: |
> +                Specifies the strength to use for pull up, if selected.
> +                Valid values are defined in
> +                <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +                If this property is omitted 30uA strength will be used
> +                if pull up is selected
> +
> +          bias-high-impedance: true
> +
> +          input-enable: true
> +
> +          output-high: true
> +
> +          output-low: true
> +
> +          power-source: true
> +
> +          qcom,drive-strength:
> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            description: |
> +                Selects the drive strength for the specified pins
> +                Valid drive strength values are defined in
> +                <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +            enum: [0, 1, 2, 3]
> +
> +          drive-push-pull: true
> +
> +          drive-open-drain: true
> +
> +          drive-open-source: true
> +
> +          qcom,analog-pass:
> +            $ref: /schemas/types.yaml#/definitions/flag
> +            description: |
> +                The specified pins are configured in
> +                analog-pass-through mode.
> +
> +          qcom,atest:
> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            description: |
> +                Selects ATEST rail to route to GPIO when it's
> +                configured in analog-pass-through mode.
> +            enum: [1, 2, 3, 4]
> +
> +          qcom,dtest-buffer:
> +            $ref: /schemas/types.yaml#/definitions/uint32
> +            description: |
> +                Selects DTEST rail to route to GPIO when it's
> +                configured as digital input.
> +            enum: [1, 2, 3, 4]
> +
> +        required:
> +          - pins
> +          - function
> +
> +        additionalProperties: false
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +
> +examples:
> +  - |
> +    #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +
> +    pm8921_gpio: gpio@150 {
> +      compatible = "qcom,pm8921-gpio", "qcom,ssbi-gpio";
> +      reg = <0x150 0x160>;
> +      interrupts = <192 1>, <193 1>, <194 1>,
> +                   <195 1>, <196 1>, <197 1>,
> +                   <198 1>, <199 1>, <200 1>,
> +                   <201 1>, <202 1>, <203 1>,
> +                   <204 1>, <205 1>, <206 1>,
> +                   <207 1>, <208 1>, <209 1>,
> +                   <210 1>, <211 1>, <212 1>,
> +                   <213 1>, <214 1>, <215 1>,
> +                   <216 1>, <217 1>, <218 1>,
> +                   <219 1>, <220 1>, <221 1>,
> +                   <222 1>, <223 1>, <224 1>,
> +                   <225 1>, <226 1>, <227 1>,
> +                   <228 1>, <229 1>, <230 1>,
> +                   <231 1>, <232 1>, <233 1>,
> +                   <234 1>, <235 1>;
> +
> +      gpio-controller;
> +      #gpio-cells = <2>;
> +
> +      pm8921_gpio_keys: gpio-keys {
> +        volume-keys {
> +          pins = "gpio20", "gpio21";
> +          function = "normal";
> +
> +          input-enable;
> +          bias-pull-up;
> +          drive-push-pull;
> +          qcom,drive-strength = <PMIC_GPIO_STRENGTH_NO>;
> +          power-source = <PM8921_GPIO_S4>;
> +        };
> +      };
> +    };
> +...
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member 
> of Code Aurora Forum, hosted by The Linux Foundation
> 

      reply	other threads:[~2021-06-11  4:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10  9:15 [RESEND PATCH V4] dt-bindings: pinctrl: qcom-pmic-gpio: Convert qcom pmic gpio bindings to YAML satya priya
2021-06-11  4:10 ` Bjorn Andersson [this message]

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