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SubjectRe: [PATCH RFC 2/2] soc: Add a basic ACPI generic driver
On Tue, Jan 28, 2020 at 7:22 PM John Garry <john.garry@huawei.com> wrote:
>
> On 28/01/2020 17:51, Olof Johansson wrote:
> > Hi,
> >
> > On Tue, Jan 28, 2020 at 3:18 AM John Garry <john.garry@huawei.com> wrote:
> >>
>
> Hi Olof,
>
> >> Add a generic driver for platforms which populate their ACPI PPTT
> >> processor package ID Type Structure according to suggestion in the ACPI
> >> spec - see ACPI 6.2, section 5.2.29.3 ID structure Type 2.
> >>
> >> The soc_id is from member LEVEL_2_ID.
> >>
> >> For this, we need to use a whitelist of platforms which are known to
> >> populate the structure as suggested.
> >>
> >> For now, only the vendor and soc_id fields are exposed.
> >>
> >> Signed-off-by: John Garry <john.garry@huawei.com>
> >> ---
> >> drivers/soc/Makefile | 1 +
> >> drivers/soc/acpi_generic.c | 102 +++++++++++++++++++++++++++++++++++++
> >> 2 files changed, 103 insertions(+)
> >> create mode 100644 drivers/soc/acpi_generic.c
> >>
> >> diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
> >> index 8b49d782a1ab..2a59a30a22cd 100644
> >> --- a/drivers/soc/Makefile
> >> +++ b/drivers/soc/Makefile
> >> @@ -3,6 +3,7 @@
> >> # Makefile for the Linux Kernel SOC specific device drivers.
> >> #
> >>
> >> +obj-$(CONFIG_ACPI_PPTT) += acpi_generic.o
> >> obj-$(CONFIG_ARCH_ACTIONS) += actions/
> >> obj-$(CONFIG_SOC_ASPEED) += aspeed/
> >> obj-$(CONFIG_ARCH_AT91) += atmel/
> >
> > Based on everything I've seen so far, this should go under drivers/acpi instead.
>
> soc drivers seem to live in drivers/soc (non-arm32, anyway), so I
> decided on this location. But drivers/acpi would also seem reasonable now.

Any reasons for not putting it into drivers/acpi/pptt.c specifically?

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