linux-kernel - Re: [PATCH 1/2 v5] dt-bindings: pwm: Add AXI PWM generator

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Date: Fri, 26 Apr 2024 16:11:14 -0400
From: Trevor Gamblin <tgamblin@...libre.com>
To: linux-pwm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, u.kleine-koenig@...gutronix.de,
 michael.hennerich@...log.com, nuno.sa@...log.com, dlechner@...libre.com,
 devicetree@...r.kernel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org
Subject: Re: [PATCH 1/2 v5] dt-bindings: pwm: Add AXI PWM generator


On 2024-04-24 8:58 a.m., Trevor Gamblin wrote:
> From: Drew Fustini <dfustini@...libre.com>
>
> Add Analog Devices AXI PWM generator.
>
> Link: https://wiki.analog.com/resources/fpga/docs/axi_pwm_gen
> Signed-off-by: Drew Fustini <dfustini@...libre.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Co-developed-by: Trevor Gamblin <tgamblin@...libre.com>
> Signed-off-by: Trevor Gamblin <tgamblin@...libre.com>
Note that I missed the following two acks from the v4 series when 
preparing v5:

Acked-by: Michael Hennerich<michael.hennerich@...log.com>
Acked-by: Nuno Sa<nuno.sa@...log.com>

Trevor

> ---
> v5 changes:
> * Modify to list only the supported axi-pwmgen-2.00.a version
>
> v4 changes: None (rebased, added maintainer's previous Reviewed-by)
> v3 changes: None (rebased, added maintainer's previous Reviewed-by)
>
> v2 changes:
> * Address feedback for driver and device tree in v1:
>    * Relocate "unevaluatedProperties" in device tree binding
>    * Remove redundant "bindings for" in description
>
> ---
>   .../bindings/pwm/adi,axi-pwmgen.yaml          | 48 +++++++++++++++++++
>   MAINTAINERS                                   |  8 ++++
>   2 files changed, 56 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
>
> diff --git a/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml b/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
> new file mode 100644
> index 000000000000..ec6115d3796b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pwm/adi,axi-pwmgen.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices AXI PWM generator
> +
> +maintainers:
> +  - Michael Hennerich <Michael.Hennerich@...log.com>
> +  - Nuno Sá <nuno.sa@...log.com>
> +
> +description:
> +  The Analog Devices AXI PWM generator can generate PWM signals
> +  with variable pulse width and period.
> +
> +  https://wiki.analog.com/resources/fpga/docs/axi_pwm_gen
> +
> +allOf:
> +  - $ref: pwm.yaml#
> +
> +properties:
> +  compatible:
> +    const: adi,axi-pwmgen-2.00.a
> +
> +  reg:
> +    maxItems: 1
> +
> +  "#pwm-cells":
> +    const: 2
> +
> +  clocks:
> +    maxItems: 1
> +
> +required:
> +  - reg
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    pwm@...00000 {
> +       compatible = "adi,axi-pwmgen-2.00.a";
> +       reg = <0x44b00000 0x1000>;
> +       clocks = <&spi_clk>;
> +       #pwm-cells = <2>;
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index ebf03f5f0619..d02ece54ccf6 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3465,6 +3465,14 @@ W:	https://ez.analog.com/linux-software-drivers
>   F:	Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
>   F:	drivers/spi/spi-axi-spi-engine.c
>   
> +AXI PWM GENERATOR
> +M:	Michael Hennerich <michael.hennerich@...log.com>
> +M:	Nuno Sá <nuno.sa@...log.com>
> +L:	linux-pwm@...r.kernel.org
> +S:	Supported
> +W:	https://ez.analog.com/linux-software-drivers
> +F:	Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
> +
>   AXXIA I2C CONTROLLER
>   M:	Krzysztof Adamski <krzysztof.adamski@...ia.com>
>   L:	linux-i2c@...r.kernel.org