linux-kernel - Re: [PATCH v2 3/6] i2c: acpi: Factor out getting the IRQ from ACPI

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Date:   Tue, 28 May 2019 09:37:59 +0100
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     <wsa@...-dreams.de>, <mika.westerberg@...ux.intel.com>
CC:     <jarkko.nikula@...ux.intel.com>,
        <andriy.shevchenko@...ux.intel.com>, <linux-i2c@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <benjamin.tissoires@...hat.com>, <jbroadus@...il.com>,
        <patches@...nsource.cirrus.com>
Subject: Re: [PATCH v2 3/6] i2c: acpi: Factor out getting the IRQ from ACPI

On Mon, May 27, 2019 at 04:19:29PM +0100, Charles Keepax wrote:
> In preparation for future refactoring factor out the fetch of the IRQ
> into its own helper function.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.cirrus.com>
> ---
>  
> +static int i2c_acpi_get_irq(struct acpi_device *adev)
> +{
> +	struct list_head resource_list;
> +	int irq = -ENOENT;
> +	int ret;
> +
> +	INIT_LIST_HEAD(&resource_list);
> +
> +	ret = acpi_dev_get_resources(adev, &resource_list,
> +				     i2c_acpi_add_resource, &irq);
> +	if (ret < 0)
> +		return -EINVAL;
> +
> +	acpi_dev_free_resource_list(&resource_list);
> +
> +	return irq;
> +}
> +

Sorry just noticed I forgot to add the kernel doc. Will fix that
up in the next spin, or do an incremental patch.

Thanks,
Charles