summaryrefslogtreecommitdiffstats
path: root/drivers/mfd/Kconfig
diff options
context:
space:
mode:
authorMika Westerberg <mika.westerberg@linux.intel.com>2020-04-16 11:15:51 +0300
committerLee Jones <lee.jones@linaro.org>2020-04-24 11:18:44 +0100
commit25f1ca31e230598eaf3c38d387a355a64bd772a7 (patch)
treedc2f0ccf77b7721b12117fefd9898b6c4dd7901a /drivers/mfd/Kconfig
parent0759a8730c7070299556af8dddeecce90955c8ae (diff)
downloadlinux-25f1ca31e230598eaf3c38d387a355a64bd772a7.tar.bz2
platform/x86: intel_pmc_ipc: Convert to MFD
This driver only creates a bunch of platform devices sharing resources belonging to the PMC device. This is pretty much what MFD subsystem is for so move the driver there, renaming it to intel_pmc_bxt.c which should be more clear what it is. MFD subsystem provides nice helper APIs for subdevice creation so convert the driver to use those. Unfortunately the ACPI device includes separate resources for most of the subdevices so we cannot simply call mfd_add_devices() to create all of them but instead we need to call it separately for each device. The new MFD driver continues to expose two sysfs attributes that allow userspace to send IPC commands to the PMC/SCU to avoid breaking any existing applications that may use these. Generally this is bad idea so document this in the ABI documentation. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/Kconfig')
-rw-r--r--drivers/mfd/Kconfig16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 5e21a78b6923..54b6aa4aaab1 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -551,7 +551,7 @@ config INTEL_SOC_PMIC
config INTEL_SOC_PMIC_BXTWC
tristate "Support for Intel Broxton Whiskey Cove PMIC"
- depends on INTEL_PMC_IPC
+ depends on MFD_INTEL_PMC_BXT
select MFD_CORE
select REGMAP_IRQ
help
@@ -632,6 +632,20 @@ config MFD_INTEL_MSIC
Passage) chip. This chip embeds audio, battery, GPIO, etc.
devices used in Intel Medfield platforms.
+config MFD_INTEL_PMC_BXT
+ tristate "Intel PMC Driver for Broxton"
+ depends on X86
+ depends on X86_PLATFORM_DEVICES
+ depends on ACPI
+ select INTEL_SCU_IPC
+ select MFD_CORE
+ help
+ This driver provides support for the PMC (Power Management
+ Controller) on Intel Broxton and Apollo Lake. The PMC is a
+ multi-function device that exposes IPC, General Control
+ Register and P-unit access. In addition this creates devices
+ for iTCO watchdog and telemetry that are part of the PMC.
+
config MFD_IPAQ_MICRO
bool "Atmel Micro ASIC (iPAQ h3100/h3600/h3700) Support"
depends on SA1100_H3100 || SA1100_H3600