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Message-ID: <CAHp75VdhCovo1uT3oxQAymEO9X+29oDet7LjYkLvpmj+r15Tfg@mail.gmail.com>
Date: Thu, 18 Aug 2022 22:41:13 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: John Garry <john.garry@...wei.com>
Cc: Len Brown <lenb@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linuxarm <linuxarm@...wei.com>
Subject: Re: [PATCH PoC 2/3] ACPI: platform: Refactor acpi_create_platform_device()
On Tue, Aug 16, 2022 at 2:33 PM John Garry <john.garry@...wei.com> wrote:
>
> There is commonality between acpi_create_platform_device() and
> hisi_lpc_acpi_add_child(), in that it covers 2x main steps:
> - Read resources for the acpi_device
> - Create platform device
>
> Refactor acpi_create_platform_device() so that it may be reused by
> hisi_lpc_acpi_add_child() to reduce duplication.
...
> + * acpi_create_platform_device_ops - Create platform device for ACPI device node
Not sure I understand why _ops is a suffix for the function. I would
expect _ops to be a data struct where the ->xlate() and perhaps other
callbacks may be collected. It may be that I have missed that portion
in the previous discussion.
...
> + if (name)
> + pdevinfo.name = name;
> + else
> + pdevinfo.name = dev_name(&adev->dev);
> + pdevinfo.data = data;
> + pdevinfo.size_data = size_data;
It rather reminds me of platform device registration full with this
device info. May be what you need is
struct acpi_platfrom_device_info {
properties;
name;
id;
->xlate();
...
};
?
...
> +struct platform_device *acpi_create_platform_device_ops(
> + struct acpi_device *adev,
> + const char *name,
> + const struct property_entry *properties,
> + void *data, size_t size_data,
> + int (*xlat)(struct acpi_device *adev,
> + struct resource *res,
> + void *data, size_t size_data),
> + int id);
...because this looks a bit too much from the amount of parameters
point of view.
--
With Best Regards,
Andy Shevchenko
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