On Fri, 15 Mar 2024, Nikita Travkin wrote: > Some ARM64 based laptops and computers require vendor/board specific > drivers for their embedded controllers. Even though usually the most > important functionality of those devices is implemented inside ACPI, > unfortunately Linux doesn't currently have great support for ACPI on > platforms like Qualcomm Snapdragon that are used in most ARM64 laptops > today. Instead Linux relies on Device Tree for Qualcomm based devices > and it's significantly easier to reimplement the EC functionality in > a dedicated driver than to make use of ACPI code. > > This commit introduces a new platform/arm64 subdirectory to give a > place to such drivers for EC-like devices. > > A new MAINTAINERS entry is added for this directory. Patches to files in > this directory will be taken up by the platform-drivers-x86 team (i.e. > Hans de Goede and Ilpo Järvinen) with additional review from Bryan > O'Donoghue to represent ARM64 maintainers. > > Signed-off-by: Nikita Travkin <nikita@xxxxxxx> Acked-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> And big thanks for Bryan for volunteering! -- i. > --- > MAINTAINERS | 10 ++++++++++ > drivers/platform/Kconfig | 2 ++ > drivers/platform/Makefile | 1 + > drivers/platform/arm64/Kconfig | 19 +++++++++++++++++++ > drivers/platform/arm64/Makefile | 6 ++++++ > 5 files changed, 38 insertions(+) > > diff --git a/MAINTAINERS b/MAINTAINERS > index 76b3714710c2..186338451099 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -3050,6 +3050,16 @@ F: drivers/mmc/host/sdhci-of-arasan.c > N: zynq > N: xilinx > > +ARM64 PLATFORM DRIVERS > +M: Hans de Goede <hdegoede@xxxxxxxxxx> > +M: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> > +R: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> > +L: platform-driver-x86@xxxxxxxxxxxxxxx > +S: Maintained > +Q: https://patchwork.kernel.org/project/platform-driver-x86/list/ > +T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git > +F: drivers/platform/arm64/ > + > ARM64 PORT (AARCH64 ARCHITECTURE) > M: Catalin Marinas <catalin.marinas@xxxxxxx> > M: Will Deacon <will@xxxxxxxxxx> > diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig > index 868b20361769..81a298517df2 100644 > --- a/drivers/platform/Kconfig > +++ b/drivers/platform/Kconfig > @@ -14,3 +14,5 @@ source "drivers/platform/olpc/Kconfig" > source "drivers/platform/surface/Kconfig" > > source "drivers/platform/x86/Kconfig" > + > +source "drivers/platform/arm64/Kconfig" > diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile > index 41640172975a..fbbe4f77aa5d 100644 > --- a/drivers/platform/Makefile > +++ b/drivers/platform/Makefile > @@ -11,3 +11,4 @@ obj-$(CONFIG_OLPC_EC) += olpc/ > obj-$(CONFIG_GOLDFISH) += goldfish/ > obj-$(CONFIG_CHROME_PLATFORMS) += chrome/ > obj-$(CONFIG_SURFACE_PLATFORMS) += surface/ > +obj-$(CONFIG_ARM64) += arm64/ > diff --git a/drivers/platform/arm64/Kconfig b/drivers/platform/arm64/Kconfig > new file mode 100644 > index 000000000000..644b83ede093 > --- /dev/null > +++ b/drivers/platform/arm64/Kconfig > @@ -0,0 +1,19 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +# > +# EC-like Drivers for aarch64 based devices. > +# > + > +menuconfig ARM64_PLATFORM_DEVICES > + bool "ARM64 Platform-Specific Device Drivers" > + depends on ARM64 || COMPILE_TEST > + default y > + help > + Say Y here to get to see options for platform-specific device drivers > + for arm64 based devices, primarily EC-like device drivers. > + This option alone does not add any kernel code. > + > + If you say N, all options in this submenu will be skipped and disabled. > + > +if ARM64_PLATFORM_DEVICES > + > +endif # ARM64_PLATFORM_DEVICES > diff --git a/drivers/platform/arm64/Makefile b/drivers/platform/arm64/Makefile > new file mode 100644 > index 000000000000..f91cdc7155e2 > --- /dev/null > +++ b/drivers/platform/arm64/Makefile > @@ -0,0 +1,6 @@ > +# SPDX-License-Identifier: GPL-2.0-only > +# > +# Makefile for linux/drivers/platform/arm64 > +# > +# This dir should only include drivers for EC-like devices. > +# > >
