linux-kernel - Re: [PATCH 2/4] ASoc: rockchip: Add rockchip SPDIF transceiver driver

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Date:	Wed, 29 Jul 2015 10:51:48 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Sjoerd Simons <sjoerd.simons@...labora.co.uk>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org
Subject: Re: [PATCH 2/4] ASoc: rockchip: Add rockchip SPDIF transceiver
 driver

A nit and a question.

On di, 2015-07-28 at 14:03 +0200, Sjoerd Simons wrote:
> --- /dev/null
> +++ b/sound/soc/rockchip/rockchip_spdif.c

> +#define DRV_NAME "rockchip-spdif"

> +static const struct of_device_id rockchip_spdif_match[] = {
> +	{ .compatible = "rockchip,rk3066-spdif", },
> +	{},
> +};

I didn't spot
    MODULE_DEVICE_TABLE(of, rockchip_spdif_match);

at first. It turned out that that line can be found at the bottom of
this file. Please put it here.

> +static struct platform_driver rockchip_spdif_driver = {
> +	.probe = rockchip_spdif_probe,
> +	.remove = rockchip_spdif_remove,
> +	.driver = {
> +		.name = DRV_NAME,
> +		.of_match_table = of_match_ptr(rockchip_spdif_match),
> +		.pm = &rockchip_spdif_pm_ops,
> +	},
> +};
> +module_platform_driver(rockchip_spdif_driver);

> +MODULE_ALIAS("platform:" DRV_NAME);

(I seem to remember that Mark Brown is OK with this, at least for the
time being, but for future reference I'll ask the question anyway.) Is
there a corresponding struct platform_device with a "rockchip-spdif"
.name? Because if there's no such platform_device I think this line
doesn't really do anything for this driver.

> +MODULE_DEVICE_TABLE(of, rockchip_spdif_match);

Thanks,


Paul Bolle
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