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Message-ID: <Y2ldc33ByZB/T+kZ@google.com>
Date: Mon, 7 Nov 2022 11:33:07 -0800
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
To: Luca Weiss <luca@...tu.xyz>
Cc: linux-input@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht,
phone-devel@...r.kernel.org, Andrew Davis <afd@...com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dt-bindings: input: Convert ti,drv260x to DT schema
On Sat, Nov 05, 2022 at 03:17:06PM +0100, Luca Weiss wrote:
> Convert the drv260x haptics binding to DT schema format.
>
> The only notable change from .txt format is that vbat-supply is not
> actually required, so don't make it a required property.
>
> Acked-by: Andrew Davis <afd@...com>
> Signed-off-by: Luca Weiss <luca@...tu.xyz>
> ---
> Changes since v2:
> * add default values for vib-*-mv
> * add note about 'mode' property
> * add enable-gpios, deprecate enable-gpio
>
> .../devicetree/bindings/input/ti,drv260x.txt | 50 --------
> .../devicetree/bindings/input/ti,drv260x.yaml | 109 ++++++++++++++++++
> 2 files changed, 109 insertions(+), 50 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/input/ti,drv260x.txt
> create mode 100644 Documentation/devicetree/bindings/input/ti,drv260x.yaml
>
> diff --git a/Documentation/devicetree/bindings/input/ti,drv260x.txt b/Documentation/devicetree/bindings/input/ti,drv260x.txt
> deleted file mode 100644
> index 4c5312eaaa85..000000000000
> --- a/Documentation/devicetree/bindings/input/ti,drv260x.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -* Texas Instruments - drv260x Haptics driver family
> -
> -Required properties:
> - - compatible - One of:
> - "ti,drv2604" - DRV2604
> - "ti,drv2605" - DRV2605
> - "ti,drv2605l" - DRV2605L
> - - reg - I2C slave address
> - - vbat-supply - Required supply regulator
> - - mode - Power up mode of the chip (defined in include/dt-bindings/input/ti-drv260x.h)
> - DRV260X_LRA_MODE - Linear Resonance Actuator mode (Piezoelectric)
> - DRV260X_LRA_NO_CAL_MODE - This is a LRA Mode but there is no calibration
> - sequence during init. And the device is configured for real
> - time playback mode (RTP mode).
> - DRV260X_ERM_MODE - Eccentric Rotating Mass mode (Rotary vibrator)
> - - library-sel - These are ROM based waveforms pre-programmed into the IC.
> - This should be set to set the library to use at power up.
> - (defined in include/dt-bindings/input/ti-drv260x.h)
> - DRV260X_LIB_EMPTY - Do not use a pre-programmed library
> - DRV260X_ERM_LIB_A - Pre-programmed Library
> - DRV260X_ERM_LIB_B - Pre-programmed Library
> - DRV260X_ERM_LIB_C - Pre-programmed Library
> - DRV260X_ERM_LIB_D - Pre-programmed Library
> - DRV260X_ERM_LIB_E - Pre-programmed Library
> - DRV260X_ERM_LIB_F - Pre-programmed Library
> - DRV260X_LIB_LRA - Pre-programmed LRA Library
> -
> -Optional properties:
> - - enable-gpio - gpio pin to enable/disable the device.
> - - vib-rated-mv - The rated voltage of the actuator in millivolts.
> - If this is not set then the value will be defaulted to
> - 3.2 v.
> - - vib-overdrive-mv - The overdrive voltage of the actuator in millivolts.
> - If this is not set then the value will be defaulted to
> - 3.2 v.
> -Example:
> -
> -haptics: haptics@5a {
> - compatible = "ti,drv2605l";
> - reg = <0x5a>;
> - vbat-supply = <&vbat>;
> - enable-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
> - mode = <DRV260X_LRA_MODE>;
> - library-sel = <DRV260X_LIB_LRA>;
> - vib-rated-mv = <3200>;
> - vib-overdrive-mv = <3200>;
> -}
> -
> -For more product information please see the link below:
> -http://www.ti.com/product/drv2605
> diff --git a/Documentation/devicetree/bindings/input/ti,drv260x.yaml b/Documentation/devicetree/bindings/input/ti,drv260x.yaml
> new file mode 100644
> index 000000000000..63230977043e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/ti,drv260x.yaml
> @@ -0,0 +1,109 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/ti,drv260x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments - drv260x Haptics driver family
> +
> +maintainers:
> + - Andrew Davis <afd@...com>
> +
> +properties:
> + compatible:
> + enum:
> + - ti,drv2604
> + - ti,drv2605
> + - ti,drv2605l
> +
> + reg:
> + maxItems: 1
> +
> + vbat-supply:
> + description: Power supply to the haptic motor
> +
> + # TODO: Deprecate 'mode' in favor of differently named property
> + mode:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + Power up mode of the chip
> + (defined in include/dt-bindings/input/ti-drv260x.h)
> +
> + DRV260X_LRA_MODE
> + Linear Resonance Actuator mode (Piezoelectric)
> +
> + DRV260X_LRA_NO_CAL_MODE
> + This is a LRA Mode but there is no calibration sequence during init.
> + And the device is configured for real time playback mode (RTP mode).
> +
> + DRV260X_ERM_MODE
> + Eccentric Rotating Mass mode (Rotary vibrator)
> + enum: [ 0, 1, 2 ]
> +
> + library-sel:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + These are ROM based waveforms pre-programmed into the IC.
> + This should be set to set the library to use at power up.
> + (defined in include/dt-bindings/input/ti-drv260x.h)
> +
> + DRV260X_LIB_EMPTY - Do not use a pre-programmed library
> + DRV260X_ERM_LIB_A - Pre-programmed Library
> + DRV260X_ERM_LIB_B - Pre-programmed Library
> + DRV260X_ERM_LIB_C - Pre-programmed Library
> + DRV260X_ERM_LIB_D - Pre-programmed Library
> + DRV260X_ERM_LIB_E - Pre-programmed Library
> + DRV260X_ERM_LIB_F - Pre-programmed Library
> + DRV260X_LIB_LRA - Pre-programmed LRA Library
> + enum: [ 0, 1, 2, 3, 4, 5, 6, 7 ]
> +
> + enable-gpio:
> + maxItems: 1
> + deprecated: true
> +
> + enable-gpios:
> + maxItems: 1
> +
> + vib-rated-mv:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + The rated voltage of the actuator in millivolts.
> + If this is not set then the value will be defaulted to 3200 mV.
> + default: 3200
> +
> + vib-overdrive-mv:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + The overdrive voltage of the actuator in millivolts.
> + If this is not set then the value will be defaulted to 3200 mV.
> + default: 3200
> +
> +required:
> + - compatible
> + - reg
> + - enable-gpio
It is weird to have a deprecated property listed in required list and
also in the example...
> + - mode
> + - library-sel
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/gpio/gpio.h>
> + #include <dt-bindings/input/ti-drv260x.h>
> +
> + i2c {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + haptics@5a {
> + compatible = "ti,drv2605l";
> + reg = <0x5a>;
> + vbat-supply = <&vbat>;
> + enable-gpio = <&gpio1 28 GPIO_ACTIVE_HIGH>;
> + mode = <DRV260X_LRA_MODE>;
> + library-sel = <DRV260X_LIB_LRA>;
> + vib-rated-mv = <3200>;
> + vib-overdrive-mv = <3200>;
> + };
> + };
> --
> 2.38.1
>
--
Dmitry
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