Messages in this thread | | | From | Tan Jui Nee <> | Subject | [PATCH v3 0/3] pinctrl/broxton: enable platform device in the absent of ACPI enumeration | Date | Tue, 7 Jun 2016 14:55:50 +0800 |
| |
Hi, The patches are to cater the need for non-ACPI system whereby a platform device has to be created in order to bind with Apollo Lake Pinctrl GPIO platform driver.
The MMIO BAR is accessed over the Primary to Sideband bridge (P2SB). Since the BIOS prevents the P2SB device from being enumerated by the PCI subsystem, so we need to hide/unhide P2SB to lookup the P2SB BAR and pass the PCI BAR address to the gpio platform driver.
All these three patches have dependencies on each other.
Changes from V2: - Simplify register addresses calculation and use DEFINE_RES_MEM_NAMED defines for apl_gpio_io_res structure - Define magic number for P2SB PCI ID - Replace switch-case with if-else since currently we have only one use case - Only call mfd_add_devices() once for all gpio communities
Changes from V1: - Add new config option CONFIG_X86_INTEL_NON_ACPI and "select PINCTRL" to fix kbuildbot error
Andy Shevchenko (1): x86/platform/p2sb: New Primary to Sideband bridge support driver for Intel SOC's
Tan Jui Nee (2): pinctrl/broxton: enable platform device in the absent of ACPI enumeration mfd: lpc_ich: Add support for Intel Apollo Lake GPIO pinctrl in non-ACPI system
arch/x86/Kconfig | 14 +++ arch/x86/include/asm/p2sb.h | 27 ++++++ arch/x86/platform/intel/Makefile | 1 + arch/x86/platform/intel/p2sb.c | 99 +++++++++++++++++++++ drivers/mfd/Kconfig | 3 +- drivers/mfd/lpc_ich.c | 153 ++++++++++++++++++++++++++++++++ drivers/pinctrl/intel/pinctrl-broxton.c | 43 ++++++--- 7 files changed, 327 insertions(+), 13 deletions(-) create mode 100644 arch/x86/include/asm/p2sb.h create mode 100644 arch/x86/platform/intel/p2sb.c
-- 1.9.1
| |