linux-kernel - Re: [PATCH v2 3/6] mailbox: Add support for ST's Mailbox IP

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Date:	Wed, 29 Jul 2015 00:06:55 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel@...inux.com, jassisinghbrar@...il.com,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v2 3/6] mailbox: Add support for ST's Mailbox IP

On ma, 2015-07-27 at 10:44 +0100, Lee Jones wrote:
> --- /dev/null
> +++ b/drivers/mailbox/mailbox-sti.c

> +static int sti_mbox_probe(struct platform_device *pdev)
> +{
> +	[...]
> +
> +	match = of_match_device(sti_mailbox_match, &pdev->dev);
> +	if (!match) {
> +		dev_err(&pdev->dev, "No configuration found\n");
> +		return -ENODEV;
> +	}
> +	pdev->dev.platform_data = (struct sti_mbox_pdata *) match->data;
> +
> +	[...]
> +}

> +static struct platform_driver sti_mbox_driver = {
> +	.probe = sti_mbox_probe,
> +	.remove = sti_mbox_remove,
> +	.driver = {
> +		.name = "sti-mailbox",
> +		.of_match_table = sti_mailbox_match,
> +	},
> +};
> +module_platform_driver(sti_mbox_driver);

> +MODULE_ALIAS("platform:mailbox-sti");

It seems this alias is only useful if there's a corresponding struct
platform_device with a "mailbox-sti" .name. I couldn't spot that
platform_device.

Besides, if I read sti_max_probe() correctly, without OF support loading
this module won't accomplish much. So what would another way of
autoloading this module buy you?

Thanks,


Paul Bolle
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