Re: [PATCH v4 0/3] ACPI 5 support for GPIO, SPI and I2C

From: Rafael J. Wysocki
Date: Thu Nov 22 2012 - 17:03:07 EST


On Tuesday, November 20, 2012 08:13:29 PM Mika Westerberg wrote:
> This is fourth version of the series. I've based these on top of Rafael's
> "simplify glueing ACPI handles to physical nodes" available from here:
>
> https://lkml.org/lkml/2012/11/19/588
>
> There is a dependency to linux-pm tree and to the above patches so I
> propose to merge these via that same tree. Subsystem maintainers, can you
> ack these if you think that they are a suitable shape?
>
> Changes to v3:
> - simplify acpi_gpiochip_find()
> - acpi_spi/i2c_add_resource() uses acpi_dev_resource_interrupt()
> directly instead of first checking the resource type
> - acpi_spi/i2c_add_device() calls acpi_dev_free_resource_list()
> immediately after walking the resources and get rid of
> fail_put_dev label.
>
> Changes to v2:
> - drop the ACPI ->find_device() glue magic in preference of the new
> simplified mechanism where we just assign the ACPI handle
> - correct the IRQ resource handling to take the first resource and
> skip the rest
> - moved declaration of acpi_i2c_register_devices() to i2c.h instead
> of having a separate header for a single function
>
> Changes to the original version:
> [gpio]
> - CONFIG_GPIO_ACPI instead of CONFIG_ACPI_GPIO
> - removed redundant test in acpi_gpiochip_find()
>
> [spi and i2c]
> - switched to use ACPI centralized _CRS evaluation framework
> introduced by Rafael
> - dropped request_module() call
> - dropped the acpi_enumerate_spi/i2c_device()
> - added required includes and dropped <linux/acpi.h> from
> acpi_i2c.h
>
> Thanks.
>
> Mathias Nyman (1):
> gpio / ACPI: add ACPI support
>
> Mika Westerberg (2):
> spi / ACPI: add ACPI enumeration support
> i2c / ACPI: add ACPI enumeration support

This patchset has been around for quite a while and went through a few
iterations, so I think it's as good as it gets at this point.

I wonder if the GPIO / SPI / I2C maintainers have any objections against it or
would like the patches to be modified somehow?

If not, then I'd like to take it for v3.8 into the linux-pm.git tree, because
the patches depend on some changes already in that tree. Hopefully, that's OK.

Thanks,
Rafael


--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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