Re: [PATCH v2 1/4] dt-bindings: phy: phy-imx8-pcie: Add binding for the pad modes of imx8 pcie phy

[Lucas Stach <l.stach@pengutronix.de>]

Am Sonntag, dem 26.09.2021 um 15:39 +0800 schrieb Richard Zhu:
> Add binding for reference clock PAD modes of the i.MX8 PCIe PHY.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> ---
>  include/dt-bindings/phy/phy-imx8-pcie.h | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
>  create mode 100644 include/dt-bindings/phy/phy-imx8-pcie.h
> 
> diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h b/include/dt-bindings/phy/phy-imx8-pcie.h
> new file mode 100644
> index 000000000000..59ed322f8d6c
> --- /dev/null
> +++ b/include/dt-bindings/phy/phy-imx8-pcie.h
> @@ -0,0 +1,14 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */

This should be (GPL-2.0+ OR MIT) to be compatible with the license of
the DTSI file it is included in.

> +/*
> + * This header provides constants for i.MX8 PCIe.
> + */
> +
> +#ifndef _DT_BINDINGS_IMX8_PCIE_H
> +#define _DT_BINDINGS_IMX8_PCIE_H
> +
> +/* Reference clock PAD mode */
> +#define IMX8_PCIE_REFCLK_PAD_NO_USED	0

I think _UNUSED would be the more idiomatic way to call this.

> +#define IMX8_PCIE_REFCLK_PAD_INPUT	1
> +#define IMX8_PCIE_REFCLK_PAD_OUTPUT	2
> +
> +#endif /* _DT_BINDINGS_IMX8_PCIE_H */