x86/intel/lpss: Add pin control support to Intel low power subsystem

x86 chips with LPSS (low power subsystem) such as Lynxpoint and
Baytrail have SoC like peripheral support and controllable pins.

At the moment, Baytrail needs the pinctrl-baytrail driver to let
peripherals control their gpio resources, but more pincontrol
functions such as pin muxing and grouping are possible to add
later.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: http://lkml.kernel.org/r/1379080949-21734-1-git-send-email-mathias.nyman@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b32ebf9..4d5843d 100644 (file)
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -482,11 +482,12 @@ config X86_INTEL_LPSS
        bool "Intel Low Power Subsystem Support"
        depends on ACPI
        select COMMON_CLK
+       select PINCTRL
        ---help---
          Select to build support for Intel Low Power Subsystem such as
          found on Intel Lynxpoint PCH. Selecting this option enables
-         things like clock tree (common clock framework) which are needed
-         by the LPSS peripheral drivers.
+         things like clock tree (common clock framework) and pincontrol
+         which are needed by the LPSS peripheral drivers.
 
 config X86_RDC321X
        bool "RDC R-321x SoC"