linux-kernel - Re: [PATCH V2 2/3] dt-bindings: pinctrl: Convert i.MX8MM to json-schema

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Date:   Tue, 14 Jan 2020 18:11:52 -0600
From:   Rob Herring <robh@...nel.org>
To:     Anson Huang <Anson.Huang@....com>
Cc:     aisheng.dong@....com, festevam@...il.com, shawnguo@...nel.org,
        stefan@...er.ch, kernel@...gutronix.de, linus.walleij@...aro.org,
        mark.rutland@....com, s.hauer@...gutronix.de,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Linux-imx@....com
Subject: Re: [PATCH V2 2/3] dt-bindings: pinctrl: Convert i.MX8MM to
 json-schema

On Fri, Jan 10, 2020 at 12:05:19PM +0800, Anson Huang wrote:
> Convert the i.MX8MM pinctrl binding to DT schema format using json-schema
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> Changes since V1:
>         - use "grp$" instead of "-grp$";
>         - use space instead of tab for "ref$";
> 	- add missed "reg" property;
>         - remove the "maxItem" for "fsl,pins" to avoid build warning, as the item number is changable.
> ---
>  .../bindings/pinctrl/fsl,imx8mm-pinctrl.txt        | 36 -----------
>  .../bindings/pinctrl/fsl,imx8mm-pinctrl.yaml       | 69 ++++++++++++++++++++++
>  2 files changed, 69 insertions(+), 36 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.txt
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.txt
> deleted file mode 100644
> index e4e01c0..0000000
> --- a/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.txt
> +++ /dev/null
> @@ -1,36 +0,0 @@
> -* Freescale IMX8MM IOMUX Controller
> -
> -Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
> -for common binding part and usage.
> -
> -Required properties:
> -- compatible: "fsl,imx8mm-iomuxc"
> -- reg: should contain the base physical address and size of the iomuxc
> -  registers.
> -
> -Required properties in sub-nodes:
> -- fsl,pins: each entry consists of 6 integers and represents the mux and config
> -  setting for one pin.  The first 5 integers <mux_reg conf_reg input_reg mux_val
> -  input_val> are specified using a PIN_FUNC_ID macro, which can be found in
> -  <arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h>. The last integer CONFIG is
> -  the pad setting value like pull-up on this pin.  Please refer to i.MX8M Mini
> -  Reference Manual for detailed CONFIG settings.
> -
> -Examples:
> -
> -&uart1 {
> -       pinctrl-names = "default";
> -       pinctrl-0 = <&pinctrl_uart1>;
> -};
> -
> -iomuxc: pinctrl@...30000 {
> -        compatible = "fsl,imx8mm-iomuxc";
> -        reg = <0x0 0x30330000 0x0 0x10000>;
> -
> -        pinctrl_uart1: uart1grp {
> -                fsl,pins = <
> -                        MX8MM_IOMUXC_UART1_RXD_UART1_DCE_RX             0x140
> -                        MX8MM_IOMUXC_UART1_TXD_UART1_DCE_TX             0x140
> -                >;
> -        };
> -};
> diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.yaml
> new file mode 100644
> index 0000000..a3c4275
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mm-pinctrl.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: GPL-2.0-or-later

Sorry, one other thing.

You're good with GPLv9? Plus this is a license change. Do you have 
rights to do so as some of this comes from the old binding doc? If you 
do, then make it:

(GPL-2.0-only OR BSD-2-Clause)

Rob