On Mon, 29 Jan 2024, Choong Yong Liang wrote: > From: "David E. Box" <david.e.box@xxxxxxxxxxxxxxx> > > - Exports intel_pmc_ipc() for host access to the PMC IPC mailbox > - Add support to use IPC command allows host to access SoC registers > through PMC firmware that are otherwise inaccessible to the host due to > security policies. > > Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> > Signed-off-by: Chao Qin <chao.qin@xxxxxxxxx> > Signed-off-by: Choong Yong Liang <yong.liang.choong@xxxxxxxxxxxxxxx> > --- > MAINTAINERS | 2 + > arch/x86/Kconfig | 9 +++ > arch/x86/platform/intel/Makefile | 1 + > arch/x86/platform/intel/pmc_ipc.c | 75 +++++++++++++++++++ > .../linux/platform_data/x86/intel_pmc_ipc.h | 34 +++++++++ > 5 files changed, 121 insertions(+) > create mode 100644 arch/x86/platform/intel/pmc_ipc.c > create mode 100644 include/linux/platform_data/x86/intel_pmc_ipc.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index 8709c7cd3656..441eb921edef 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -10973,8 +10973,10 @@ M: Rajneesh Bhardwaj <irenic.rajneesh@xxxxxxxxx> > M: David E Box <david.e.box@xxxxxxxxx> > L: platform-driver-x86@xxxxxxxxxxxxxxx > S: Maintained > +F: arch/x86/platform/intel/pmc_ipc.c > F: Documentation/ABI/testing/sysfs-platform-intel-pmc > F: drivers/platform/x86/intel/pmc/ > +F: linux/platform_data/x86/intel_pmc_ipc.h > > INTEL PMIC GPIO DRIVERS > M: Andy Shevchenko <andy@xxxxxxxxxx> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 5edec175b9bf..bceae28b9381 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -666,6 +666,15 @@ config X86_AMD_PLATFORM_DEVICE > I2C and UART depend on COMMON_CLK to set clock. GPIO driver is > implemented under PINCTRL subsystem. > > +config INTEL_PMC_IPC > + tristate "Intel Core SoC Power Management Controller IPC mailbox" > + depends on ACPI > + help > + This option enables sideband register access support for Intel SoC > + power management controller IPC mailbox. > + > + If you don't require the option or are in doubt, say N. > + > config IOSF_MBI > tristate "Intel SoC IOSF Sideband support for SoC platforms" > depends on PCI > diff --git a/arch/x86/platform/intel/Makefile b/arch/x86/platform/intel/Makefile > index dbee3b00f9d0..470fc68de6ba 100644 > --- a/arch/x86/platform/intel/Makefile > +++ b/arch/x86/platform/intel/Makefile > @@ -1,2 +1,3 @@ > # SPDX-License-Identifier: GPL-2.0-only > obj-$(CONFIG_IOSF_MBI) += iosf_mbi.o > +obj-$(CONFIG_INTEL_PMC_IPC) += pmc_ipc.o > \ No newline at end of file New line missing. -- i.
