Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers…

…-x86

Pull x86 platform driver updates from Matthew Garrett:
 "A moderate number of changes, but nothing awfully significant.

  A lot of const cleanups, some reworking and additions to the rfkill
  quirks in the asus driver, a new driver for generating falling laptop
  events on Toshibas and some misc fixes.

  Maybe vendors have stopped inventing things"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (41 commits)
  platform/x86: Enable build support for toshiba_haps
  Documentation: Add file about toshiba_haps module
  platform/x86: Toshiba HDD Active Protection Sensor
  asus-nb-wmi: Add wapf4 quirk for the U32U
  alienware-wmi: make hdmi_mux enabled on case-by-case basis
  ideapad-laptop: Constify DMI table and other r/o variables
  asus-nb-wmi.c: Rename x401u quirk to wapf4
  compal-laptop: correct invalid hwmon name
  toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list
  toshiba_acpi: Add extra check to backlight code
  Fix log message about future removal of interface
  ideapad-laptop: Disable touchpad interface on Yoga models
  asus-nb-wmi: Add wapf4 quirk for the X550CC
  intel_ips: Make ips_mcp_limits variables static
  thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata
  fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst
  hp-wmi: Add missing __init annotations to initialization code
  hp_accel: Constify ACPI and DMI tables
  fujitsu-tablet: Mark DMI callbacks as __init code
  dell-laptop: Mark dell_quirks[] DMI table as __initconst
  ...

Documentation/laptops/00-INDEX

@@ -18,3 +18,5 @@ sonypi.txt
  - info on Linux Sony Programmable I/O Device support.
 thinkpad-acpi.txt
  - information on the (IBM and Lenovo) ThinkPad ACPI Extras driver.
+toshiba_haps.txt
+ - information on the Toshiba HDD Active Protection Sensor driver.

Documentation/laptops/toshiba_haps.txt

@@ -0,0 +1,76 @@
+Kernel driver toshiba_haps
+Toshiba HDD Active Protection Sensor
+====================================
+
+Author: Azael Avalos <coproscefalo@gmail.com>
+
+
+0. Contents
+-----------
+
+1. Description
+2. Interface
+3. Accelerometer axes
+4. Supported devices
+5. Usage
+
+
+1. Description
+--------------
+
+This driver provides support for the accelerometer found in various Toshiba
+laptops, being called "Toshiba HDD Protection - Shock Sensor" officialy,
+and detects laptops automatically with this device.
+On Windows, Toshiba provided software monitors this device and provides
+automatic HDD protection (head unload) on sudden moves or harsh vibrations,
+however, this driver only provides a notification via a sysfs file to let
+userspace tools or daemons act accordingly, as well as providing a sysfs
+file to set the desired protection level or sensor sensibility.
+
+
+2. Interface
+------------
+
+This device comes with 3 methods:
+_STA - Checks existence of the device, returning Zero if the device does not
+ exists or is not supported.
+PTLV - Sets the desired protection level.
+RSSS - Shuts down the HDD protection interface for a few seconds,
+ then restores normal operation.
+
+Note:
+The presence of Solid State Drives (SSD) can make this driver to fail loading,
+given the fact that such drives have no movable parts, and thus, not requiring
+any "protection" as well as failing during the evaluation of the _STA method
+found under this device.
+
+
+3. Accelerometer axes
+---------------------
+
+This device does not report any axes, however, to query the sensor position
+a couple HCI (Hardware Configuration Interface) calls (0x6D and 0xA6) are
+provided to query such information, handled by the kernel module toshiba_acpi
+since kernel version 3.15.
+
+
+4. Supported devices
+--------------------
+
+This driver binds itself to the ACPI device TOS620A, and any Toshiba laptop
+with this device is supported, given the fact that they have the presence of
+conventional HDD and not only SSD, or a combination of both HDD and SSD.
+
+
+5. Usage
+--------
+
+The sysfs files under /sys/devices/LNXSYSTM:00/LNXSYBUS:00/TOS620A:00/ are:
+protection_level - The protection_level is readable and writeable, and
+ provides a way to let userspace query the current protection
+ level, as well as set the desired protection level, the
+ available protection levels are:
+ 0 - Disabled | 1 - Low | 2 - Medium | 3 - High
+reset_protection - The reset_protection entry is writeable only, being "1"
+ the only parameter it accepts, it is used to trigger
+ a reset of the protection interface.

MAINTAINERS

@@ -10017,7 +10017,7 @@ F: arch/x86/
 X86 PLATFORM DRIVERS
 M: Matthew Garrett <matthew.garrett@nebula.com>
 L: platform-driver-x86@vger.kernel.org
-T: git git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86.git
+T: git git://cavan.codon.org.uk/platform-drivers-x86.git
 S: Maintained
 F: drivers/platform/x86/
 

drivers/platform/x86/Kconfig

@@ -652,6 +652,25 @@ config TOSHIBA_BT_RFKILL
  If you have a modern Toshiba laptop with a Bluetooth and an
  RFKill switch (such as the Portege R500), say Y.
 
+config TOSHIBA_HAPS
+ tristate "Toshiba HDD Active Protection Sensor"
+ depends on ACPI
+ ---help---
+ This driver adds support for the built-in accelerometer
+ found on recent Toshiba laptops equiped with HID TOS620A
+ device.
+
+ This driver receives ACPI notify events 0x80 when the sensor
+ detects a sudden move or a harsh vibration, as well as an
+ ACPI notify event 0x81 whenever the movement or vibration has
+ been stabilized.
+
+ Also provides sysfs entries to get/set the desired protection
+ level and reseting the HDD protection interface.
+
+ If you have a recent Toshiba laptop with a built-in accelerometer
+ device, say Y.
+
 config ACPI_CMPC
  tristate "CMPC Laptop Extras"
  depends on X86 && ACPI

drivers/platform/x86/Makefile

@@ -38,6 +38,7 @@ obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
 obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
 
 obj-$(CONFIG_TOSHIBA_BT_RFKILL) += toshiba_bluetooth.o
+obj-$(CONFIG_TOSHIBA_HAPS) += toshiba_haps.o
 obj-$(CONFIG_INTEL_SCU_IPC) += intel_scu_ipc.o
 obj-$(CONFIG_INTEL_SCU_IPC_UTIL) += intel_scu_ipcutil.o
 obj-$(CONFIG_INTEL_MFLD_THERMAL) += intel_mid_thermal.o

drivers/platform/x86/acer-wmi.c

@@ -96,7 +96,7 @@ enum acer_wmi_event_ids {
  WMID_ACCEL_EVENT = 0x5,
 };
 
-static const struct key_entry acer_wmi_keymap[] = {
+static const struct key_entry acer_wmi_keymap[] __initconst = {
  {KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
  {KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
  {KE_KEY, 0x04, {KEY_WLAN} }, /* WiFi */
@@ -294,7 +294,7 @@ struct quirk_entry {
 
 static struct quirk_entry *quirks;
 
-static void set_quirks(void)
+static void __init set_quirks(void)
 {
  if (!interface)
  return;
@@ -306,7 +306,7 @@ static void set_quirks(void)
  interface->capability |= ACER_CAP_BRIGHTNESS;
 }
 
-static int dmi_matched(const struct dmi_system_id *dmi)
+static int __init dmi_matched(const struct dmi_system_id *dmi)
 {
  quirks = dmi->driver_data;
  return 1;
@@ -337,7 +337,7 @@ static struct quirk_entry quirk_lenovo_ideapad_s205 = {
 };
 
 /* The Aspire One has a dummy ACPI-WMI interface - disable it */
-static struct dmi_system_id acer_blacklist[] = {
+static const struct dmi_system_id acer_blacklist[] __initconst = {
  {
  .ident = "Acer Aspire One (SSD)",
  .matches = {
@@ -355,7 +355,7 @@ static struct dmi_system_id acer_blacklist[] = {
  {}
 };
 
-static struct dmi_system_id acer_quirks[] = {
+static const struct dmi_system_id acer_quirks[] __initconst = {
  {
  .callback = dmi_matched,
  .ident = "Acer Aspire 1360",
@@ -530,14 +530,15 @@ static struct dmi_system_id acer_quirks[] = {
  {}
 };
 
-static int video_set_backlight_video_vendor(const struct dmi_system_id *d)
+static int __init
+video_set_backlight_video_vendor(const struct dmi_system_id *d)
 {
  interface->capability &= ~ACER_CAP_BRIGHTNESS;
  pr_info("Brightness must be controlled by generic video driver\n");
  return 0;
 }
 
-static const struct dmi_system_id video_vendor_dmi_table[] = {
+static const struct dmi_system_id video_vendor_dmi_table[] __initconst = {
  {
  .callback = video_set_backlight_video_vendor,
  .ident = "Acer TravelMate 4750",
@@ -582,7 +583,7 @@ static const struct dmi_system_id video_vendor_dmi_table[] = {
 };
 
 /* Find which quirks are needed for a particular vendor/ model pair */
-static void find_quirks(void)
+static void __init find_quirks(void)
 {
  if (!force_series) {
  dmi_check_system(acer_quirks);
@@ -749,7 +750,7 @@ static acpi_status AMW0_set_u32(u32 value, u32 cap)
  return wmab_execute(&args, NULL);
 }
 
-static acpi_status AMW0_find_mailled(void)
+static acpi_status __init AMW0_find_mailled(void)
 {
  struct wmab_args args;
  struct wmab_ret ret;
@@ -781,24 +782,24 @@ static acpi_status AMW0_find_mailled(void)
  return AE_OK;
 }
 
-static int AMW0_set_cap_acpi_check_device_found;
+static int AMW0_set_cap_acpi_check_device_found __initdata;
 
-static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
+static acpi_status __init AMW0_set_cap_acpi_check_device_cb(acpi_handle handle,
  u32 level, void *context, void **retval)
 {
  AMW0_set_cap_acpi_check_device_found = 1;
  return AE_OK;
 }
 
-static const struct acpi_device_id norfkill_ids[] = {
+static const struct acpi_device_id norfkill_ids[] __initconst = {
  { "VPC2004", 0},
  { "IBM0068", 0},
  { "LEN0068", 0},
  { "SNY5001", 0}, /* sony-laptop in charge */
  { "", 0},
 };
 
-static int AMW0_set_cap_acpi_check_device(void)
+static int __init AMW0_set_cap_acpi_check_device(void)
 {
  const struct acpi_device_id *id;
 
@@ -808,7 +809,7 @@ static int AMW0_set_cap_acpi_check_device(void)
  return AMW0_set_cap_acpi_check_device_found;
 }
 
-static acpi_status AMW0_set_capabilities(void)
+static acpi_status __init AMW0_set_capabilities(void)
 {
  struct wmab_args args;
  struct wmab_ret ret;
@@ -1184,7 +1185,7 @@ static acpi_status wmid_v2_set_u32(u32 value, u32 cap)
  return wmid3_set_device_status(value, device);
 }
 
-static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
+static void __init type_aa_dmi_decode(const struct dmi_header *header, void *d)
 {
  struct hotkey_function_type_aa *type_aa;
 
@@ -1209,7 +1210,7 @@ static void type_aa_dmi_decode(const struct dmi_header *header, void *dummy)
  commun_fn_key_number = type_aa->commun_fn_key_number;
 }
 
-static acpi_status WMID_set_capabilities(void)
+static acpi_status __init WMID_set_capabilities(void)
 {
  struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
  union acpi_object *obj;
@@ -1658,7 +1659,7 @@ static ssize_t show_bool_threeg(struct device *dev,
  u32 result; \
  acpi_status status;
 
- pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
+ pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
  current->comm);
  status = get_u32(&result, ACER_CAP_THREEG);
  if (ACPI_SUCCESS(status))
@@ -1671,7 +1672,7 @@ static ssize_t set_bool_threeg(struct device *dev,
 {
  u32 tmp = simple_strtoul(buf, NULL, 10);
  acpi_status status = set_u32(tmp, ACER_CAP_THREEG);
- pr_info("This threeg sysfs will be removed in 2012 - used by: %s\n",
+ pr_info("This threeg sysfs will be removed in 2014 - used by: %s\n",
  current->comm);
  if (ACPI_FAILURE(status))
  return -EINVAL;
@@ -1683,7 +1684,7 @@ static DEVICE_ATTR(threeg, S_IRUGO | S_IWUSR, show_bool_threeg,
 static ssize_t show_interface(struct device *dev, struct device_attribute *attr,
  char *buf)
 {
- pr_info("This interface sysfs will be removed in 2012 - used by: %s\n",
+ pr_info("This interface sysfs will be removed in 2014 - used by: %s\n",
  current->comm);
  switch (interface->type) {
  case ACER_AMW0:
@@ -1777,7 +1778,7 @@ static void acer_wmi_notify(u32 value, void *context)
  }
 }
 
-static acpi_status
+static acpi_status __init
 wmid3_set_lm_mode(struct lm_input_params *params,
  struct lm_return_value *return_value)
 {
@@ -1811,7 +1812,7 @@ wmid3_set_lm_mode(struct lm_input_params *params,
  return status;
 }
 
-static int acer_wmi_enable_ec_raw(void)
+static int __init acer_wmi_enable_ec_raw(void)
 {
  struct lm_return_value return_value;
  acpi_status status;
@@ -1834,7 +1835,7 @@ static int acer_wmi_enable_ec_raw(void)
  return status;
 }
 
-static int acer_wmi_enable_lm(void)
+static int __init acer_wmi_enable_lm(void)
 {
  struct lm_return_value return_value;
  acpi_status status;
@@ -2043,6 +2044,7 @@ static int acer_platform_remove(struct platform_device *device)
  return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int acer_suspend(struct device *dev)
 {
  u32 value;
@@ -2083,6 +2085,10 @@ static int acer_resume(struct device *dev)
 
  return 0;
 }
+#else
+#define acer_suspend NULL
+#define acer_resume NULL
+#endif
 
 static SIMPLE_DEV_PM_OPS(acer_pm, acer_suspend, acer_resume);
 
@@ -2120,7 +2126,7 @@ static int remove_sysfs(struct platform_device *device)
  return 0;
 }
 
-static int create_sysfs(void)
+static int __init create_sysfs(void)
 {
  int retval = -ENOMEM;
 
@@ -2149,7 +2155,7 @@ static void remove_debugfs(void)
  debugfs_remove(interface->debug.root);
 }
 
-static int create_debugfs(void)
+static int __init create_debugfs(void)
 {
  interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
  if (!interface->debug.root) {