On Thursday, June 30, 2016 09:29:59 AM Fu Wei wrote:

Hi Rafael,

On 30 June 2016 at 05:32, Rafael J. Wysocki [off-list ref] wrote:

quoted

On Wed, Jun 29, 2016 at 8:15 PM,  [off-list ref] wrote:

quoted

From: Fu Wei <redacted>

This patchset:
    (1)Preparation for adding GTDT support in arm_arch_timer
        1. Move some enums and marcos to header file
        2. Add a new enum for spi type.
        3. Improve printk relevant code

    (2)Introduce ACPI GTDT parser: drivers/acpi/gtdt.c
    Parse all kinds of timer in GTDT table of ACPI:arch timer,
    memory-mapped timer and SBSA Generic Watchdog timer.
    This driver can help to simplify all the relevant timer drivers,
    and separate all the ACPI GTDT knowledge from them.

    (3)Simplify ACPI code for arm_arch_timer

    (4)Add GTDT support for ARM memory-mapped timer

GTDT is ARM-specific AFAICS.

yes, you are right, it is.

quoted

If so, why do we need that code to reside in drivers/acpi/ ?

Although  the GTDT is just for ARM64, but this driver is parsing one
of ACPI table,
I think that could be treated as ACPI driver.  Do I miss something? :-)

Yes, you are.  Nobody except for ARM64 will ever need it.

Thanks,
Rafael