[alsa-devel] [PATCH v3 1/2] ASoC: codecs: Add support for AK4458 DAC driver

[Philippe Ombredanne]

On Wed, Feb 14, 2018 at 2:21 PM, Cosmin-Gabriel Samoila
<cosmin.samoila at nxp.com> wrote:
> The AK4458 is a 32-bit 8ch Premium DAC that corresponds
> to a 768kHz PCM input and an 11.2MHz DSD input at maximum.
> It supports I2S, DSD and TDM modes with 24 or 32 bit MSB
> or 16, 24, 32 LSB formats. Its datasheet is available here:
> https://www.akm.com/akm/en/file/datasheet/AK4458VN.pdf
>
> Signed-off-by: Junichi Wakasugi <wakasugi.jb at om.asahi-kasei.co.jp>
> Signed-off-by: Mihai Serban <mihai.serban at nxp.com>
> Signed-off-by: Shengjiu Wang <shengjiu.wang at nxp.com>
> Signed-off-by: Cosmin-Gabriel Samoila <cosmin.samoila at nxp.com>
> ---

> --- /dev/null
> +++ b/sound/soc/codecs/ak4458.c
> @@ -0,0 +1,659 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Audio driver for AK4458 DAC
> + *
> + * Copyright (C) 2016 Asahi Kasei Microdevices Corporation
> + * Copyright 2018 NXP

Thanks for using the proper SPDX tag here.... yet see my comments below.

<snip>

> +MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb at om.asahi-kasei.co.jp>");
> +MODULE_AUTHOR("Mihai Serban <mihai.serban at nxp.com>");
> +MODULE_DESCRIPTION("ASoC AK4458 DAC driver");
> +MODULE_LICENSE("GPL");

This means GPL-2.0+ per module.h and therefore does not match your
GPL-2.0 SPDX tag above.
Go one way or the other, but not both way please.

> diff --git a/sound/soc/codecs/ak4458.h b/sound/soc/codecs/ak4458.h
> new file mode 100644
> index 0000000..16d9d22
> --- /dev/null
> +++ b/sound/soc/codecs/ak4458.h
> @@ -0,0 +1,86 @@
> +// SPDX-License-Identifier: GPL-2.0

As weird as it sounds the style should be plain /*
SPDX-License-Identifier: GPL-2.0 /* here per [1]

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/license-rules.rst

-- 
Cordially
Philippe Ombredanne