linux-kernel - [PATCH v3 0/3] pinctrl/broxton: enable platform device in the absent of ACPI enumeration

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Tue,  7 Jun 2016 14:55:50 +0800
From:	Tan Jui Nee <jui.nee.tan@...el.com>
To:	mika.westerberg@...ux.intel.com, heikki.krogerus@...ux.intel.com,
	andriy.shevchenko@...ux.intel.com, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	ptyser@...-inc.com, lee.jones@...aro.org
Cc:	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	jui.nee.tan@...el.com, jonathan.yong@...el.com,
	ong.hock.yu@...el.com, weifeng.voon@...el.com,
	wan.ahmad.zainie.wan.mohamad@...el.com
Subject: [PATCH v3 0/3] pinctrl/broxton: enable platform device in the absent of ACPI enumeration

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