patches on ACPI release branch

patches on ACPI release branch

[Len Brown]

The messages following this one contain the patches
in the ACPI git tree on the release branch
for 2.6.20-rc4.  Please speak up if you see any
problems with them.

thanks
-Len

[PATCH 1/7] ACPI: Altix: ACPI _PRT support

[Len Brown]

From: John Keller <jpk@sgi.com>

Provide ACPI _PRT support for SN Altix systems.

The SN Altix platform does not conform to the
IOSAPIC IRQ routing model, so a new acpi_irq_model
(ACPI_IRQ_MODEL_PLATFORM) has been defined. The SN
platform specific code sets acpi_irq_model to
this new value, and keys off of it in acpi_register_gsi()
to avoid the iosapic code path.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 arch/ia64/kernel/acpi.c            |    3 +++
 arch/ia64/sn/kernel/io_acpi_init.c |    3 +++
 drivers/acpi/bus.c                 |    3 +++
 include/linux/acpi.h               |    1 +
 4 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 73ef4a8..ef2fe47 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -590,6 +590,9 @@ void __init acpi_numa_arch_fixup(void)
  */
 int acpi_register_gsi(u32 gsi, int triggering, int polarity)
 {
+	if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM)
+		return gsi;
+
 	if (has_8259 && gsi < 16)
 		return isa_irq_to_vector(gsi);
 
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
index 99d7f27..cb96b4e 100644
--- a/arch/ia64/sn/kernel/io_acpi_init.c
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -223,6 +223,9 @@ sn_io_acpi_init(void)
 	u64 result;
 	s64 status;
 
+	/* SN Altix does not follow the IOSAPIC IRQ routing model */
+	acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
+
 	acpi_bus_register_driver(&acpi_sn_hubdev_driver);
 	status = sal_ioif_init(&result);
 	if (status || result)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 279c4ba..766332e 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -561,6 +561,9 @@ static int __init acpi_bus_init_irq(void)
 	case ACPI_IRQ_MODEL_IOSAPIC:
 		message = "IOSAPIC";
 		break;
+	case ACPI_IRQ_MODEL_PLATFORM:
+		message = "platform specific model";
+		break;
 	default:
 		printk(KERN_WARNING PREFIX "Unknown interrupt routing model\n");
 		return -ENODEV;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 2b0c955..91f1f23 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -47,6 +47,7 @@ enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
 	ACPI_IRQ_MODEL_IOSAPIC,
+	ACPI_IRQ_MODEL_PLATFORM,
 	ACPI_IRQ_MODEL_COUNT
 };
 
-- 
1.4.4.4.ge05d

[PATCH 2/7] ACPI: ec: enable printk on cmdline use

[Len Brown]

if somebody uses "ec_intr=", lets be sure to
capture that in the dmesg even in the non-debug case.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/ec.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 4144d5d..cbdf031 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1016,8 +1016,8 @@ static int __init acpi_ec_set_intr_mode(char *str)
 		acpi_ec_mode = EC_POLL;
 	}
 	acpi_ec_driver.ops.add = acpi_ec_add;
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "EC %s mode.\n",
-			  intr ? "interrupt" : "polling"));
+	printk(KERN_NOTICE PREFIX "%s mode.\n",
+			  intr ? "interrupt" : "polling");
 
 	return 1;
 }
-- 
1.4.4.4.ge05d

[PATCH 3/7] ACPI: rename cstate_entry_s to cstate_entry

[Len Brown]

From: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>

style change only.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 arch/i386/kernel/acpi/cstate.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/i386/kernel/acpi/cstate.c b/arch/i386/kernel/acpi/cstate.c
index 12e937c..2d39f55 100644
--- a/arch/i386/kernel/acpi/cstate.c
+++ b/arch/i386/kernel/acpi/cstate.c
@@ -47,13 +47,13 @@ EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
 
 /* The code below handles cstate entry with monitor-mwait pair on Intel*/
 
-struct cstate_entry_s {
+struct cstate_entry {
 	struct {
 		unsigned int eax;
 		unsigned int ecx;
 	} states[ACPI_PROCESSOR_MAX_POWER];
 };
-static struct cstate_entry_s *cpu_cstate_entry;	/* per CPU ptr */
+static struct cstate_entry *cpu_cstate_entry;	/* per CPU ptr */
 
 static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 
@@ -71,7 +71,7 @@ static short mwait_supported[ACPI_PROCESSOR_MAX_POWER];
 int acpi_processor_ffh_cstate_probe(unsigned int cpu,
 		struct acpi_processor_cx *cx, struct acpi_power_register *reg)
 {
-	struct cstate_entry_s *percpu_entry;
+	struct cstate_entry *percpu_entry;
 	struct cpuinfo_x86 *c = cpu_data + cpu;
 
 	cpumask_t saved_mask;
@@ -136,7 +136,7 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);
 void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx)
 {
 	unsigned int cpu = smp_processor_id();
-	struct cstate_entry_s *percpu_entry;
+	struct cstate_entry *percpu_entry;
 
 	percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu);
 	mwait_idle_with_hints(percpu_entry->states[cx->index].eax,
@@ -150,7 +150,7 @@ static int __init ffh_cstate_init(void)
 	if (c->x86_vendor != X86_VENDOR_INTEL)
 		return -1;
 
-	cpu_cstate_entry = alloc_percpu(struct cstate_entry_s);
+	cpu_cstate_entry = alloc_percpu(struct cstate_entry);
 	return 0;
 }
 
-- 
1.4.4.4.ge05d

[PATCH 4/7] ACPI: delete two spurious ACPI messages

[Len Brown]

From: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>

ACPI: Getting cpuindex for acpiid 0x4

acpi_processor-0742 [00] processor_preregister_: Error while parsing _PSD domain information. Assuming no coordination

http://bugzilla.kernel.org/show_bug.cgi?id=7286

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_core.c    |    3 ---
 drivers/acpi/processor_perflib.c |    4 ----
 2 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 25718fe..5f9496d 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -476,9 +476,6 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
 	if (cpu_index == -1) {
 		if (ACPI_FAILURE
 		    (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
-			printk(KERN_ERR PREFIX
-				    "Getting cpuindex for acpiid 0x%x\n",
-				    pr->acpi_id);
 			return -ENODEV;
 		}
 	}
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 0e60382..5207f9e 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -736,10 +736,6 @@ int acpi_processor_preregister_performance(
 	}
 
 err_ret:
-	if (retval) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error while parsing _PSD domain information. Assuming no coordination\n"));
-	}
-
 	for_each_possible_cpu(i) {
 		pr = processors[i];
 		if (!pr || !pr->performance)
-- 
1.4.4.4.ge05d

[PATCH 5/7] ACPI: schedule obsolete features for deletion

[Len Brown]

Signed-off-by: Len Brown <len.brown@intel.com>
---
 Documentation/feature-removal-schedule.txt |   45 ++++++++++++++++++++++++++++
 1 files changed, 45 insertions(+), 0 deletions(-)

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 30f3c8c..2ee16b4 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -256,3 +256,48 @@ Why:	Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are
 Who:	Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
 
 ---------------------------
+
+What:	ACPI hotkey driver (CONFIG_ACPI_HOTKEY)
+When:	2.6.21
+Why:	hotkey.c was an attempt to consolidate multiple drivers that use
+	ACPI to implement hotkeys.  However, hotkeys are not documented
+	in the ACPI specification, so the drivers used undocumented
+	vendor-specific hooks and turned out to be more different than
+	the same.
+
+	Further, the keys and the features supplied by each platform
+	are different, so there will always be a need for
+	platform-specific drivers.
+
+	So the new plan is to delete hotkey.c and instead, work on the
+	platform specific drivers to try to make them look the same
+	to the user when they supply the same features.
+
+	hotkey.c has always depended on CONFIG_EXPERIMENTAL
+
+Who:	Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What:	/sys/firmware/acpi/namespace
+When:	2.6.21
+Why:	The ACPI namespace is effectively the symbol list for
+	the BIOS.  The device names are completely arbitrary
+	and have no place being exposed to user-space.
+
+	For those interested in the BIOS ACPI namespace,
+	the BIOS can be extracted and disassembled with acpidump
+	and iasl as documented in the pmtools package here:
+	http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils
+
+Who:	Len Brown <len.brown@intel.com>
+
+---------------------------
+
+What:	/proc/acpi/button
+When:	August 2007
+Why:	/proc/acpi/button has been replaced by events to the input layer
+	since 2.6.20.
+Who:	Len Brown <len.brown@intel.com>
+
+---------------------------
-- 
1.4.4.4.ge05d

[PATCH 6/7] ACPI: update MAINTAINERS

[Len Brown]

s/Maintained/Supported/
and document some sub-maintainers for ACPI drivers.

Signed-off-by: Len Brown <len.brown@intel.com>
---
 MAINTAINERS |   39 ++++++++++++++++++++++++++++++++++-----
 1 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 0f6d13b..d1f454c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -207,16 +207,45 @@ S:	Supported
 ACPI
 P:	Len Brown
 M:	len.brown@intel.com
+M:	lenb@kernel.org
 L:	linux-acpi@vger.kernel.org
 W:	http://acpi.sourceforge.net/
 T:	git kernel.org:/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6.git
-S:	Maintained
+S:	Supported
+
+ACPI BATTERY DRIVERS
+P:	Vladimir P. Lebedev
+M:	vladimir.p.lebedev@intel.com
+L:	linux-acpi@vger.kernel.org
+W:	http://acpi.sourceforge.net/
+S:	Supported
+
+ACPI EC DRIVER
+P:	Alexey Starikovskiy
+M:	alexey.y.starikovskiy@linux.intel.com
+L:	linux-acpi@vger.kernel.org
+W:	http://acpi.sourceforge.net/
+S:	Supported
+
+ACPI FAN DRIVER
+P:	Konstantin A. Karasyov
+M:	konstantin.a.karasyov@intel.com
+L:	linux-acpi@vger.kernel.org
+W:	http://acpi.sourceforge.net/
+S:	Supported
 
 ACPI PCI HOTPLUG DRIVER
 P:	Kristen Carlson Accardi
 M:	kristen.c.accardi@intel.com
 L:	pcihpd-discuss@lists.sourceforge.net
-S:	Maintained
+S:	Supported
+
+ACPI THERMAL DRIVER
+P:	Konstantin A. Karasyov
+M:	konstantin.a.karasyov@intel.com
+L:	linux-acpi@vger.kernel.org
+W:	http://acpi.sourceforge.net/
+S:	Supported
 
 AD1816 SOUND DRIVER
 P:	Thorsten Knabe
@@ -1071,7 +1100,7 @@ DOCKING STATION DRIVER
 P:	Kristen Carlson Accardi
 M:	kristen.c.accardi@intel.com
 L:	linux-acpi@vger.kernel.org
-S:	Maintained
+S:	Supported
 
 DOUBLETALK DRIVER
 P:	James R. Van Zandt
@@ -2521,7 +2550,7 @@ PCIE HOTPLUG DRIVER
 P:	Kristen Carlson Accardi
 M:	kristen.c.accardi@intel.com
 L:	pcihpd-discuss@lists.sourceforge.net
-S:	Maintained
+S:	Supported
 
 PCMCIA SUBSYSTEM
 P:	Linux PCMCIA Team
@@ -3015,7 +3044,7 @@ SHPC HOTPLUG DRIVER
 P:	Kristen Carlson Accardi
 M:	kristen.c.accardi@intel.com
 L:	pcihpd-discuss@lists.sourceforge.net
-S:	Maintained
+S:	Supported
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE DRIVER
 P:	Pierre Ossman
-- 
1.4.4.4.ge05d

[PATCH 7/7] Revert "ACPI: ibm-acpi: make non-generic bay support optional"

[Len Brown]

From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>

This reverts commit 2df910b4c3edcce9a0c12394db6f5f4a6e69c712.

ACPI_BAY has not been merged into mainline yet, so the changes to ibm-acpi
related Kconfig entries that depend on ACPI_BAY were permanently disabling
ibm-acpi bay support.  This is a serious regression for ThinkPad users.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/Kconfig    |   11 -----------
 drivers/acpi/ibm_acpi.c |   13 +------------
 2 files changed, 1 insertions(+), 23 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1639998..f4f000a 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -225,17 +225,6 @@ config ACPI_IBM_DOCK
 
 	  If you are not sure, say N here.
 
-config ACPI_IBM_BAY
-	bool "Legacy Removable Bay Support"
-	depends on ACPI_IBM
-	depends on ACPI_BAY=n
-	default n
-	---help---
-	  Allows the ibm_acpi driver to handle removable bays.
-	  This support is obsoleted by CONFIG_ACPI_BAY.
-
-	  If you are not sure, say N here.
-
 config ACPI_TOSHIBA
 	tristate "Toshiba Laptop Extras"
 	depends on X86
diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c
index b72d13d..c6144ca 100644
--- a/drivers/acpi/ibm_acpi.c
+++ b/drivers/acpi/ibm_acpi.c
@@ -157,7 +157,6 @@ IBM_HANDLE(dock, root, "\\_SB.GDCK",	/* X30, X31, X40 */
 	   "\\_SB.PCI.ISA.SLCE",	/* 570 */
     );				/* A21e,G4x,R30,R31,R32,R40,R40e,R50e */
 #endif
-#ifdef CONFIG_ACPI_IBM_BAY
 IBM_HANDLE(bay, root, "\\_SB.PCI.IDE.SECN.MAST",	/* 570 */
 	   "\\_SB.PCI0.IDE0.IDES.IDSM",	/* 600e/x, 770e, 770x */
 	   "\\_SB.PCI0.SATA.SCND.MSTR",	/* T60, X60, Z60 */ 
@@ -175,7 +174,6 @@ IBM_HANDLE(bay2, root, "\\_SB.PCI0.IDE0.PRIM.SLAV",	/* A3x, R32 */
 IBM_HANDLE(bay2_ej, bay2, "_EJ3",	/* 600e/x, 770e, A3x */
 	   "_EJ0",		/* 770x */
     );				/* all others */
-#endif
 
 /* don't list other alternatives as we install a notify handler on the 570 */
 IBM_HANDLE(pci, root, "\\_SB.PCI");	/* 570 */
@@ -1042,7 +1040,6 @@ static int light_write(char *buf)
 	return 0;
 }
 
-#if defined(CONFIG_ACPI_IBM_DOCK) || defined(CONFIG_ACPI_IBM_BAY)
 static int _sta(acpi_handle handle)
 {
 	int status;
@@ -1052,7 +1049,7 @@ static int _sta(acpi_handle handle)
 
 	return status;
 }
-#endif
+
 #ifdef CONFIG_ACPI_IBM_DOCK
 #define dock_docked() (_sta(dock_handle) & 1)
 
@@ -1118,7 +1115,6 @@ static void dock_notify(struct ibm_struct *ibm, u32 event)
 }
 #endif
 
-#ifdef CONFIG_ACPI_IBM_BAY
 static int bay_status_supported;
 static int bay_status2_supported;
 static int bay_eject_supported;
@@ -1194,7 +1190,6 @@ static void bay_notify(struct ibm_struct *ibm, u32 event)
 {
 	acpi_bus_generate_event(ibm->device, event, 0);
 }
-#endif
 
 static int cmos_read(char *p)
 {
@@ -2354,7 +2349,6 @@ static struct ibm_struct ibms[] = {
 	 .type = ACPI_SYSTEM_NOTIFY,
 	 },
 #endif
-#ifdef CONFIG_ACPI_IBM_BAY
 	{
 	 .name = "bay",
 	 .init = bay_init,
@@ -2364,7 +2358,6 @@ static struct ibm_struct ibms[] = {
 	 .handle = &bay_handle,
 	 .type = ACPI_SYSTEM_NOTIFY,
 	 },
-#endif
 	{
 	 .name = "cmos",
 	 .read = cmos_read,
@@ -2650,9 +2643,7 @@ IBM_PARAM(light);
 #ifdef CONFIG_ACPI_IBM_DOCK
 IBM_PARAM(dock);
 #endif
-#ifdef CONFIG_ACPI_IBM_BAY
 IBM_PARAM(bay);
-#endif
 IBM_PARAM(cmos);
 IBM_PARAM(led);
 IBM_PARAM(beep);
@@ -2735,14 +2726,12 @@ static int __init acpi_ibm_init(void)
 	IBM_HANDLE_INIT(dock);
 #endif
 	IBM_HANDLE_INIT(pci);
-#ifdef CONFIG_ACPI_IBM_BAY
 	IBM_HANDLE_INIT(bay);
 	if (bay_handle)
 		IBM_HANDLE_INIT(bay_ej);
 	IBM_HANDLE_INIT(bay2);
 	if (bay2_handle)
 		IBM_HANDLE_INIT(bay2_ej);
-#endif
 	IBM_HANDLE_INIT(beep);
 	IBM_HANDLE_INIT(ecrd);
 	IBM_HANDLE_INIT(ecwr);
-- 
1.4.4.4.ge05d