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-rw-r--r--drivers/acpi/battery.c9
-rw-r--r--drivers/acpi/blacklist.c401
-rw-r--r--drivers/acpi/ec.c3
-rw-r--r--drivers/acpi/osl.c104
-rw-r--r--drivers/acpi/scan.c10
-rw-r--r--drivers/acpi/sleep/main.c40
-rw-r--r--drivers/acpi/toshiba_acpi.c2
-rw-r--r--drivers/acpi/utils.c16
-rw-r--r--drivers/misc/sony-laptop.c4
-rw-r--r--drivers/misc/thinkpad_acpi.c57
-rw-r--r--include/acpi/acpredef.h4
11 files changed, 133 insertions, 517 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 1423b0c0cd2e..a0a178dd189c 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -174,6 +174,15 @@ static int acpi_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
val->intval = battery->current_now * 1000;
+ /* if power units are mW, convert to mA by
+ dividing by current voltage (mV/1000) */
+ if (!battery->power_unit) {
+ if (battery->voltage_now) {
+ val->intval /= battery->voltage_now;
+ val->intval *= 1000;
+ } else
+ val->intval = -1;
+ }
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index ea92bac42c53..09c69806c1fc 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -176,16 +176,6 @@ static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
acpi_dmi_osi_linux(1, d); /* enable */
return 0;
}
-static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)
-{
- acpi_dmi_osi_linux(0, d); /* disable */
- return 0;
-}
-static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)
-{
- acpi_dmi_osi_linux(-1, d); /* unknown */
- return 0;
-}
static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
{
printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
@@ -193,295 +183,21 @@ static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
return 0;
}
-/*
- * Most BIOS that invoke OSI(Linux) do nothing with it.
- * But some cause Linux to break.
- * Only a couple use it to make Linux run better.
- *
- * Thus, Linux should continue to disable OSI(Linux) by default,
- * should continue to discourage BIOS writers from using it, and
- * should whitelist the few existing systems that require it.
- *
- * If it appears clear a vendor isn't using OSI(Linux)
- * for anything constructive, blacklist them by name to disable
- * unnecessary dmesg warnings on all of their products.
- */
-
static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
- /*
- * Disable OSI(Linux) warnings on all "Acer, inc."
- *
- * _OSI(Linux) disables the latest Windows BIOS code:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3100"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
- * _OSI(Linux) effect unknown:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
- */
- /*
- * note that dmi_check_system() uses strstr()
- * to match sub-strings rather than !strcmp(),
- * so "Acer" below matches "Acer, inc." above.
- */
- /*
- * Disable OSI(Linux) warnings on all "Acer"
- *
- * _OSI(Linux) effect unknown:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
- *
- * _OSI(Linux) is a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Acer",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
- * Disable OSI(Linux) warnings on all "Apple Inc."
- *
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
- * _OSI(Linux) effect unknown:
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Apple",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "BenQ"
- *
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "BenQ",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "Clevo Co."
- *
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Clevo",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "COMPAL"
- *
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
- * _OSI(Linux) unknown effect:
- * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Compal",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
- },
- },
- { /* OSI(Linux) touches USB, unknown side-effect */
- .callback = dmi_disable_osi_linux,
- .ident = "Dell Dimension 5150",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
- },
- },
- { /* OSI(Linux) is a NOP */
- .callback = dmi_disable_osi_linux,
- .ident = "Dell i1501",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
- },
- },
- { /* OSI(Linux) effect unknown */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell Latitude D830",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
- },
- },
- { /* OSI(Linux) effect unknown */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell OptiPlex GX620",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
- },
- },
- { /* OSI(Linux) causes some USB initialization to not run */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell OptiPlex 755",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 755"),
- },
- },
- { /* OSI(Linux) effect unknown */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell PE 1900",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
- },
- },
- { /* OSI(Linux) is a NOP */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell PE 1950",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"),
- },
- },
- { /* OSI(Linux) is a NOP */
- .callback = dmi_disable_osi_linux,
- .ident = "Dell PE R200",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R200"),
- },
- },
- { /* OSI(Linux) touches USB */
- .callback = dmi_disable_osi_linux,
- .ident = "Dell PR 390",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
- },
- },
- { /* OSI(Linux) touches USB */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell PR 390",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 690"),
- },
- },
- { /* OSI(Linux) unknown - ASL looks benign, but may effect dock/SMM */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell PR M4300",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Precision M4300"),
- },
- },
- { /* OSI(Linux) is a NOP */
- .callback = dmi_disable_osi_linux,
- .ident = "Dell Vostro 1000",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1000"),
- },
- },
- { /* OSI(Linux) effect unknown */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dell PE SC440",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
- },
- },
- { /* OSI(Linux) effect unknown */
- .callback = dmi_unknown_osi_linux,
- .ident = "Dialogue Flybook V5",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
- DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
- *
- * _OSI(Linux) disables latest Windows BIOS code:
- * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
- * _OSI(Linux) unknown effect:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Fujitsu Siemens",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
- },
- },
{
.callback = dmi_disable_osi_vista,
.ident = "Fujitsu Siemens",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
- DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
},
},
+
/*
- * Disable OSI(Linux) warnings on all "Hewlett-Packard"
- *
- * _OSI(Linux) confirmed to be a NOP:
- * .ident = "HP Pavilion tx 1000"
- * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
- * .ident = "HP Pavilion dv2000"
- * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
- * .ident = "HP Pavilion dv5000",
- * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
- * .ident = "HP Pavilion dv6300 30BC",
- * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
- * .ident = "HP Pavilion dv6000",
- * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
- * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
- * .ident = "HP Pavilion dv9000",
- * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
- * .ident = "HP Pavilion dv9500",
- * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
- * .ident = "HP/Compaq Presario C500",
- * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
- * .ident = "HP/Compaq Presario F500",
- * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
- * _OSI(Linux) unknown effect:
- * .ident = "HP Pavilion dv6500",
- * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
+ * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
+ * Linux ignores it, except for the machines enumerated below.
*/
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Hewlett-Packard",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
- },
- },
+
/*
* Lenovo has a mix of systems OSI(Linux) situations
* and thus we can not wildcard the vendor.
@@ -519,113 +235,6 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
},
},
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Lenovo 3000 V100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
- },
- },
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Lenovo 3000 N100",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "LG Electronics"
- *
- * _OSI(Linux) confirmed to be a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
- * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
- *
- * unknown:
- * DMI_MATCH(DMI_PRODUCT_NAME, "S1-MDGDG"),
- * with DMI_MATCH(DMI_BOARD_NAME, "ROCKY"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "LG",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
- },
- },
- /* NEC - OSI(Linux) effect unknown */
- {
- .callback = dmi_unknown_osi_linux,
- .ident = "NEC VERSA M360",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
- DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
- },
- },
- /* Panasonic */
- {
- .callback = dmi_unknown_osi_linux,
- .ident = "Panasonic",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Matsushita"),
- /* Toughbook CF-52 */
- DMI_MATCH(DMI_PRODUCT_NAME, "CF-52CCABVBG"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "Samsung Electronics"
- *
- * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
- * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Samsung",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "Sony Corporation"
- *
- * _OSI(Linux) is a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NR11S_S"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
- * _OSI(Linux) unknown effect:
- * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Sony",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
- },
- },
- /*
- * Disable OSI(Linux) warnings on all "TOSHIBA"
- *
- * _OSI(Linux) breaks sound (bugzilla 7787):
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
- * _OSI(Linux) is a NOP:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
- * _OSI(Linux) unknown effect:
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
- * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
- */
- {
- .callback = dmi_disable_osi_linux,
- .ident = "Toshiba",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
- },
- },
{}
};
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index cf41f9fc24a7..30f3ef236ecb 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -219,7 +219,8 @@ static void gpe_transaction(struct acpi_ec *ec, u8 status)
goto unlock;
err:
/* false interrupt, state didn't change */
- ++ec->curr->irq_count;
+ if (in_interrupt())
+ ++ec->curr->irq_count;
unlock:
spin_unlock_irqrestore(&ec->curr_lock, flags);
}
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 4be252145cb4..c8111424dcb8 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -35,7 +35,6 @@
#include <linux/interrupt.h>
#include <linux/kmod.h>
#include <linux/delay.h>
-#include <linux/dmi.h>
#include <linux/workqueue.h>
#include <linux/nmi.h>
#include <linux/acpi.h>
@@ -97,54 +96,44 @@ static DEFINE_SPINLOCK(acpi_res_lock);
static char osi_additional_string[OSI_STRING_LENGTH_MAX];
/*
- * "Ode to _OSI(Linux)"
+ * The story of _OSI(Linux)
*
- * osi_linux -- Control response to BIOS _OSI(Linux) query.
+ * From pre-history through Linux-2.6.22,
+ * Linux responded TRUE upon a BIOS OSI(Linux) query.
*
- * As Linux evolves, the features that it supports change.
- * So an OSI string such as "Linux" is not specific enough
- * to be useful across multiple versions of Linux. It
- * doesn't identify any particular feature, interface,
- * or even any particular version of Linux...
+ * Unfortunately, reference BIOS writers got wind of this
+ * and put OSI(Linux) in their example code, quickly exposing
+ * this string as ill-conceived and opening the door to
+ * an un-bounded number of BIOS incompatibilities.
*
- * Unfortunately, Linux-2.6.22 and earlier responded "yes"
- * to a BIOS _OSI(Linux) query. When
- * a reference mobile BIOS started using it, its use
- * started to spread to many vendor platforms.
- * As it is not supportable, we need to halt that spread.
+ * For example, OSI(Linux) was used on resume to re-POST a
+ * video card on one system, because Linux at that time
+ * could not do a speedy restore in its native driver.
+ * But then upon gaining quick native restore capability,
+ * Linux has no way to tell the BIOS to skip the time-consuming
+ * POST -- putting Linux at a permanent performance disadvantage.
+ * On another system, the BIOS writer used OSI(Linux)
+ * to infer native OS support for IPMI! On other systems,
+ * OSI(Linux) simply got in the way of Linux claiming to
+ * be compatible with other operating systems, exposing
+ * BIOS issues such as skipped device initialization.
*
- * Today, most BIOS references to _OSI(Linux) are noise --
- * they have no functional effect and are just dead code
- * carried over from the reference BIOS.
- *
- * The next most common case is that _OSI(Linux) harms Linux,
- * usually by causing the BIOS to follow paths that are
- * not tested during Windows validation.
- *
- * Finally, there is a short list of platforms
- * where OSI(Linux) benefits Linux.
- *
- * In Linux-2.6.23, OSI(Linux) is first disabled by default.
- * DMI is used to disable the dmesg warning about OSI(Linux)
- * on platforms where it is known to have no effect.
- * But a dmesg warning remains for systems where
- * we do not know if OSI(Linux) is good or bad for the system.
- * DMI is also used to enable OSI(Linux) for the machines
- * that are known to need it.
+ * So "Linux" turned out to be a really poor chose of
+ * OSI string, and from Linux-2.6.23 onward we respond FALSE.
*
* BIOS writers should NOT query _OSI(Linux) on future systems.
- * It will be ignored by default, and to get Linux to
- * not ignore it will require a kernel source update to
- * add a DMI entry, or a boot-time "acpi_osi=Linux" invocation.
+ * Linux will complain on the console when it sees it, and return FALSE.
+ * To get Linux to return TRUE for your system will require
+ * a kernel source update to add a DMI entry,
+ * or boot with "acpi_osi=Linux"
*/
-#define OSI_LINUX_ENABLE 0
static struct osi_linux {
unsigned int enable:1;
unsigned int dmi:1;
unsigned int cmdline:1;
unsigned int known:1;
-} osi_linux = { OSI_LINUX_ENABLE, 0, 0, 0};
+} osi_linux = { 0, 0, 0, 0};
static void __init acpi_request_region (struct acpi_generic_address *addr,
unsigned int length, char *desc)
@@ -1296,34 +1285,6 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
return (AE_OK);
}
-/**
- * acpi_dmi_dump - dump DMI slots needed for blacklist entry
- *
- * Returns 0 on success
- */
-static int acpi_dmi_dump(void)
-{
-
- if (!dmi_available)
- return -1;
-
- printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n",
- dmi_get_system_info(DMI_SYS_VENDOR));
- printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n",
- dmi_get_system_info(DMI_PRODUCT_NAME));
- printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n",
- dmi_get_system_info(DMI_PRODUCT_VERSION));
- printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n",
- dmi_get_system_info(DMI_BOARD_NAME));
- printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n",
- dmi_get_system_info(DMI_BIOS_VENDOR));
- printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n",
- dmi_get_system_info(DMI_BIOS_DATE));
-
- return 0;
-}
-
-
/******************************************************************************
*
* FUNCTION: acpi_os_validate_interface
@@ -1350,21 +1311,6 @@ acpi_os_validate_interface (char *interface)
osi_linux.cmdline ? " via cmdline" :
osi_linux.dmi ? " via DMI" : "");
- if (!osi_linux.dmi) {
- if (acpi_dmi_dump())
- printk(KERN_NOTICE PREFIX
- "[please extract dmidecode output]\n");
- printk(KERN_NOTICE PREFIX
- "Please send DMI info above to "
- "linux-acpi@vger.kernel.org\n");
- }
- if (!osi_linux.known && !osi_linux.cmdline) {
- printk(KERN_NOTICE PREFIX
- "If \"acpi_osi=%sLinux\" works better, "
- "please notify linux-acpi@vger.kernel.org\n",
- osi_linux.enable ? "!" : "");
- }
-
if (osi_linux.enable)
return AE_OK;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index bd5253ee5c85..39b7233c3485 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -751,16 +751,6 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
if (!acpi_match_device_ids(device, button_device_ids))
device->wakeup.flags.run_wake = 1;
- /*
- * Don't set Power button GPE as run_wake
- * if Fixed Power button is used
- */
- if (!strcmp(device->pnp.hardware_id, "PNP0C0C") &&
- !(acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON)) {
- device->wakeup.flags.run_wake = 0;
- device->wakeup.flags.valid = 0;
- }
-
end:
if (ACPI_FAILURE(status))
device->flags.wake_capable = 0;
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 80c0868d0480..28a691cc625e 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -90,6 +90,18 @@ void __init acpi_old_suspend_ordering(void)
old_suspend_ordering = true;
}
+/*
+ * According to the ACPI specification the BIOS should make sure that ACPI is
+ * enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still,
+ * some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
+ * on such systems during resume. Unfortunately that doesn't help in
+ * particularly pathological cases in which SCI_EN has to be set directly on
+ * resume, although the specification states very clearly that this flag is
+ * owned by the hardware. The set_sci_en_on_resume variable will be set in such
+ * cases.
+ */
+static bool set_sci_en_on_resume;
+
/**
* acpi_pm_disable_gpes - Disable the GPEs.
*/
@@ -235,7 +247,11 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
}
/* If ACPI is not enabled by the BIOS, we need to enable it here. */
- acpi_enable();
+ if (set_sci_en_on_resume)
+ acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
+ else
+ acpi_enable();
+
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(acpi_state);
@@ -323,6 +339,12 @@ static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
return 0;
}
+static int __init init_set_sci_en_on_resume(const struct dmi_system_id *d)
+{
+ set_sci_en_on_resume = true;
+ return 0;
+}
+
static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
{
.callback = init_old_suspend_ordering,
@@ -340,6 +362,22 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
},
},
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Apple MacBook 1,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Apple MacMini 1,1",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
+ },
+ },
{},
};
#endif /* CONFIG_SUSPEND */
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index 66aac06f2ac5..25f531d892de 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -848,8 +848,6 @@ static int __init toshiba_acpi_init(void)
ret = input_register_polled_device(toshiba_acpi.poll_dev);
if (ret) {
printk(MY_ERR "unable to register kill-switch input device\n");
- rfkill_free(toshiba_acpi.rfk_dev);
- toshiba_acpi.rfk_dev = NULL;
toshiba_acpi_exit();
return ret;
}
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index e827be36ee8d..f844941089bb 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -259,34 +259,26 @@ acpi_evaluate_integer(acpi_handle handle,
struct acpi_object_list *arguments, unsigned long long *data)
{
acpi_status status = AE_OK;
- union acpi_object *element;
+ union acpi_object element;
struct acpi_buffer buffer = { 0, NULL };
-
if (!data)
return AE_BAD_PARAMETER;
- element = kzalloc(sizeof(union acpi_object), irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL);
- if (!element)
- return AE_NO_MEMORY;
-
buffer.length = sizeof(union acpi_object);
- buffer.pointer = element;
+ buffer.pointer = &element;
status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
if (ACPI_FAILURE(status)) {
acpi_util_eval_error(handle, pathname, status);
- kfree(element);
return status;
}
- if (element->type != ACPI_TYPE_INTEGER) {
+ if (element.type != ACPI_TYPE_INTEGER) {
acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
- kfree(element);
return AE_BAD_DATA;
}
- *data = element->integer.value;
- kfree(element);
+ *data = element.integer.value;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%llu]\n", *data));
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 7bcb81002dcf..571b211608d1 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -1038,8 +1038,8 @@ static int sony_nc_add(struct acpi_device *device)
goto outinput;
}
- if (!acpi_video_backlight_support()) {
- printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
+ if (acpi_video_backlight_support()) {
+ printk(KERN_INFO DRV_PFX "brightness ignored, must be "
"controlled by ACPI video driver\n");
} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
&handle))) {
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 7a4a26b0edd2..899766e16fa8 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -5318,6 +5318,7 @@ static enum fan_control_commands fan_control_commands;
static u8 fan_control_initial_status;
static u8 fan_control_desired_level;
+static u8 fan_control_resume_level;
static int fan_watchdog_maxinterval;
static struct mutex fan_mutex;
@@ -5440,8 +5441,8 @@ static int fan_set_level(int level)
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
- if ((level != TP_EC_FAN_AUTO) &&
- (level != TP_EC_FAN_FULLSPEED) &&
+ if (!(level & TP_EC_FAN_AUTO) &&
+ !(level & TP_EC_FAN_FULLSPEED) &&
((level < 0) || (level > 7)))
return -EINVAL;
@@ -6005,38 +6006,67 @@ static void fan_exit(void)
static void fan_suspend(pm_message_t state)
{
+ int rc;
+
if (!fan_control_allowed)
return;
/* Store fan status in cache */
- fan_get_status_safe(NULL);
+ fan_control_resume_level = 0;
+ rc = fan_get_status_safe(&fan_control_resume_level);
+ if (rc < 0)
+ printk(TPACPI_NOTICE
+ "failed to read fan level for later "
+ "restore during resume: %d\n", rc);
+
+ /* if it is undefined, don't attempt to restore it.
+ * KEEP THIS LAST */
if (tp_features.fan_ctrl_status_undef)
- fan_control_desired_level = TP_EC_FAN_AUTO;
+ fan_control_resume_level = 0;
}
static void fan_resume(void)
{
- u8 saved_fan_level;
u8 current_level = 7;
bool do_set = false;
+ int rc;
/* DSDT *always* updates status on resume */
tp_features.fan_ctrl_status_undef = 0;
- saved_fan_level = fan_control_desired_level;
if (!fan_control_allowed ||
+ !fan_control_resume_level ||
(fan_get_status_safe(&current_level) < 0))
return;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_SFAN:
- do_set = (saved_fan_level > current_level);
+ /* never decrease fan level */
+ do_set = (fan_control_resume_level > current_level);
break;
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
- do_set = ((saved_fan_level & TP_EC_FAN_FULLSPEED) ||
- (saved_fan_level == 7 &&
- !(current_level & TP_EC_FAN_FULLSPEED)));
+ /* never decrease fan level, scale is:
+ * TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO
+ *
+ * We expect the firmware to set either 7 or AUTO, but we
+ * handle FULLSPEED out of paranoia.
+ *
+ * So, we can safely only restore FULLSPEED or 7, anything
+ * else could slow the fan. Restoring AUTO is useless, at
+ * best that's exactly what the DSDT already set (it is the
+ * slower it uses).
+ *
+ * Always keep in mind that the DSDT *will* have set the
+ * fans to what the vendor supposes is the best level. We
+ * muck with it only to speed the fan up.
+ */
+ if (fan_control_resume_level != 7 &&
+ !(fan_control_resume_level & TP_EC_FAN_FULLSPEED))
+ return;
+ else
+ do_set = !(current_level & TP_EC_FAN_FULLSPEED) &&
+ (current_level != fan_control_resume_level);
break;
default:
return;
@@ -6044,8 +6074,11 @@ static void fan_resume(void)
if (do_set) {
printk(TPACPI_NOTICE
"restoring fan level to 0x%02x\n",
- saved_fan_level);
- fan_set_level_safe(saved_fan_level);
+ fan_control_resume_level);
+ rc = fan_set_level_safe(fan_control_resume_level);
+ if (rc < 0)
+ printk(TPACPI_NOTICE
+ "failed to restore fan level: %d\n", rc);
}
}
diff --git a/include/acpi/acpredef.h b/include/acpi/acpredef.h
index 619fb75f8861..16a9ca9a66e4 100644
--- a/include/acpi/acpredef.h
+++ b/include/acpi/acpredef.h
@@ -167,7 +167,7 @@ static const union acpi_predefined_info predefined_names[] = {
{.info = {"_BFS", 1, 0}},
{.info = {"_BIF", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER,
9,
- ACPI_RTYPE_STRING, 4, 0}}, /* fixed (9 Int),(4 Str) */
+ ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER, 4, 0}}, /* fixed (9 Int),(4 Str) */
{.info = {"_BLT", 3, 0}},
{.info = {"_BMC", 1, 0}},
{.info = {"_BMD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* fixed (5 Int) */
@@ -346,7 +346,7 @@ static const union acpi_predefined_info predefined_names[] = {
/* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */
- {.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_PACKAGE}},
+ {.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE}},
{.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* fixed (2 Int), but is optional */
{.ret_info = {0, 0, 0, 0, 0, 0}} /* Table terminator */
};
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 10:08:14 +0300