Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits)
  ACPI, i915: Register ACPI video even when not modesetting
  Revert "ACPICA: delete check for AML access to port 0x81-83"
  I/O port protection: update for windows compatibility.
  sony-laptop: always try to unblock rfkill on load
  sony-laptop: fix bogus error message display on resume
  ACPI: EC: Fix ACPI EC resume non-query interrupt message
  sony-laptop: SNC input event 38 fix
  sony-laptop: SNC 127 Initialization Fix
  sony-laptop: Duplicate SNC 127 Event Fix
  ACPI: prevent processor.max_cstate=0 boot crash
  ACPI/hpet: prevent boot hang when hpet=force used on ICH-4M
  ACPI: delete obsolete "bus master activity" proc field
  ACPI: idle: mark_tsc_unstable() at init-time, not run-time
  ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
  ACPI video: fix an error when the brightness levels on AC and on Battery are same
  acpi-cpufreq: Do not let get_measured perf depend on internal variable
  acpi-cpufreq: style-only: add parens to math expression
  acpi-cpufreq: Cleanup: Use printk_once
  x86, acpi_cpufreq: Fix the NULL pointer dereference in get_measured_perf
  thinkpad-acpi: bump up version to 0.23
  ...

Documentation/ABI/testing/sysfs-firmware-acpi

@@ -69,9 +69,13 @@ Description:
 		gpe1F:	     0	invalid
 		gpe_all:    1192
 		sci:	1194
+		sci_not:     0	
 
-		sci - The total number of times the ACPI SCI
-		has claimed an interrupt.
+		sci - The number of times the ACPI SCI
+		has been called and claimed an interrupt.
+
+		sci_not - The number of times the ACPI SCI
+		has been called and NOT claimed an interrupt.
 
 		gpe_all - count of SCI caused by GPEs.
 

Documentation/laptops/thinkpad-acpi.txt

 		     ThinkPad ACPI Extras Driver
 
-                            Version 0.22
-                        November 23rd,  2008
+                            Version 0.23
+                          April 10th, 2009
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>

arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c

@@ -65,14 +65,18 @@ enum {
 struct acpi_cpufreq_data {
 	struct acpi_processor_performance *acpi_data;
 	struct cpufreq_frequency_table *freq_table;
-	unsigned int max_freq;
 	unsigned int resume;
 	unsigned int cpu_feature;
-	u64 saved_aperf, saved_mperf;
 };
 
 static DEFINE_PER_CPU(struct acpi_cpufreq_data *, drv_data);
 
+struct acpi_msr_data {
+	u64 saved_aperf, saved_mperf;
+};
+
+static DEFINE_PER_CPU(struct acpi_msr_data, msr_data);
+
 DEFINE_TRACE(power_mark);
 
 /* acpi_perf_data is a pointer to percpu data. */
@@ -287,11 +291,11 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
 		return 0;
 
 	cur.aperf.whole = readin.aperf.whole -
-				per_cpu(drv_data, cpu)->saved_aperf;
+				per_cpu(msr_data, cpu).saved_aperf;
 	cur.mperf.whole = readin.mperf.whole -
-				per_cpu(drv_data, cpu)->saved_mperf;
-	per_cpu(drv_data, cpu)->saved_aperf = readin.aperf.whole;
-	per_cpu(drv_data, cpu)->saved_mperf = readin.mperf.whole;
+				per_cpu(msr_data, cpu).saved_mperf;
+	per_cpu(msr_data, cpu).saved_aperf = readin.aperf.whole;
+	per_cpu(msr_data, cpu).saved_mperf = readin.mperf.whole;
 
 #ifdef __i386__
 	/*
@@ -335,7 +339,7 @@ static unsigned int get_measured_perf(struct cpufreq_policy *policy,
 
 #endif
 
-	retval = per_cpu(drv_data, policy->cpu)->max_freq * perf_percent / 100;
+	retval = (policy->cpuinfo.max_freq * perf_percent) / 100;
 
 	return retval;
 }
@@ -688,16 +692,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	/* Check for high latency (>20uS) from buggy BIOSes, like on T42 */
 	if (perf->control_register.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE &&
 	    policy->cpuinfo.transition_latency > 20 * 1000) {
-		static int print_once;
 		policy->cpuinfo.transition_latency = 20 * 1000;
-		if (!print_once) {
-			print_once = 1;
-			printk(KERN_INFO "Capping off P-state tranision latency"
-				" at 20 uS\n");
-		}
+			printk_once(KERN_INFO "Capping off P-state tranision"
+				    " latency at 20 uS\n");
 	}
 
-	data->max_freq = perf->states[0].core_frequency * 1000;
 	/* table init */
 	for (i = 0; i < perf->state_count; i++) {
 		if (i > 0 && perf->states[i].core_frequency >=
@@ -716,6 +715,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	if (result)
 		goto err_freqfree;
 
+	if (perf->states[0].core_frequency * 1000 != policy->cpuinfo.max_freq)
+		printk(KERN_WARNING FW_WARN "P-state 0 is not max freq\n");
+
 	switch (perf->control_register.space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_IO:
 		/* Current speed is unknown and not detectable by IO port */

drivers/acpi/acpica/hwsleep.c

@@ -211,6 +211,12 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
 
 ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
 
+static unsigned int gts, bfs;
+module_param(gts, uint, 0644);
+module_param(bfs, uint, 0644);
+MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
+MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enter_sleep_state
@@ -278,6 +284,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 		return_ACPI_STATUS(status);
 	}
 
+	if (gts) {
 		/* Execute the _GTS method */
 
 		arg_list.count = 1;
@@ -289,6 +296,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 		if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
 			return_ACPI_STATUS(status);
 		}
+	}
 
 	/* Get current value of PM1A control */
 
@@ -513,6 +521,7 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
 		}
 	}
 
+	if (bfs) {
 		/* Execute the _BFS method */
 
 		arg_list.count = 1;
@@ -524,7 +533,7 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
 		if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
 			ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
 		}
-
+	}
 	return_ACPI_STATUS(status);
 }
 

drivers/acpi/acpica/hwvalid.c

@@ -90,6 +90,7 @@ static const struct acpi_port_info acpi_protected_ports[] = {
 	{"PIT2", 0x0048, 0x004B, ACPI_OSI_WIN_XP},
 	{"RTC", 0x0070, 0x0071, ACPI_OSI_WIN_XP},
 	{"CMOS", 0x0074, 0x0076, ACPI_OSI_WIN_XP},
+	{"DMA1", 0x0081, 0x0083, ACPI_OSI_WIN_XP},
 	{"DMA1L", 0x0087, 0x0087, ACPI_OSI_WIN_XP},
 	{"DMA2", 0x0089, 0x008B, ACPI_OSI_WIN_XP},
 	{"DMA2L", 0x008F, 0x008F, ACPI_OSI_WIN_XP},
@@ -151,7 +152,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 		ACPI_ERROR((AE_INFO,
 			    "Illegal I/O port address/length above 64K: 0x%p/%X",
 			    ACPI_CAST_PTR(void, address), byte_width));
-		return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
+		return_ACPI_STATUS(AE_LIMIT);
 	}
 
 	/* Exit if requested address is not within the protected port table */
@@ -178,11 +179,12 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 			/* Port illegality may depend on the _OSI calls made by the BIOS */
 
 			if (acpi_gbl_osi_data >= port_info->osi_dependency) {
-				ACPI_ERROR((AE_INFO,
+				ACPI_DEBUG_PRINT((ACPI_DB_IO,
 						  "Denied AML access to port 0x%p/%X (%s 0x%.4X-0x%.4X)",
 						  ACPI_CAST_PTR(void, address),
 						  byte_width, port_info->name,
-					    port_info->start, port_info->end));
+						  port_info->start,
+						  port_info->end));
 
 				return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
 			}
@@ -206,7 +208,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
  *              Value               Where value is placed
  *              Width               Number of bits
  *
- * RETURN:      Value read from port
+ * RETURN:      Status and value read from port
  *
  * DESCRIPTION: Read data from an I/O port or register. This is a front-end
  *              to acpi_os_read_port that performs validation on both the port
@@ -217,14 +219,43 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 {
 	acpi_status status;
+	u32 one_byte;
+	u32 i;
+
+	/* Validate the entire request and perform the I/O */
 
 	status = acpi_hw_validate_io_request(address, width);
-	if (ACPI_FAILURE(status)) {
+	if (ACPI_SUCCESS(status)) {
+		status = acpi_os_read_port(address, value, width);
 		return status;
 	}
 
-	status = acpi_os_read_port(address, value, width);
+	if (status != AE_AML_ILLEGAL_ADDRESS) {
+		return status;
+	}
+
+	/*
+	 * There has been a protection violation within the request. Fall
+	 * back to byte granularity port I/O and ignore the failing bytes.
+	 * This provides Windows compatibility.
+	 */
+	for (i = 0, *value = 0; i < width; i += 8) {
+
+		/* Validate and read one byte */
+
+		if (acpi_hw_validate_io_request(address, 8) == AE_OK) {
+			status = acpi_os_read_port(address, &one_byte, 8);
+			if (ACPI_FAILURE(status)) {
 				return status;
+			}
+
+			*value |= (one_byte << i);
+		}
+
+		address++;
+	}
+
+	return AE_OK;
 }
 
 /******************************************************************************
@@ -235,7 +266,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
  *              Value               Value to write
  *              Width               Number of bits
  *
- * RETURN:      None
+ * RETURN:      Status
  *
  * DESCRIPTION: Write data to an I/O port or register. This is a front-end
  *              to acpi_os_write_port that performs validation on both the port
@@ -246,12 +277,39 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)
 {
 	acpi_status status;
+	u32 i;
+
+	/* Validate the entire request and perform the I/O */
 
 	status = acpi_hw_validate_io_request(address, width);
-	if (ACPI_FAILURE(status)) {
+	if (ACPI_SUCCESS(status)) {
+		status = acpi_os_write_port(address, value, width);
 		return status;
 	}
 
-	status = acpi_os_write_port(address, value, width);
+	if (status != AE_AML_ILLEGAL_ADDRESS) {
+		return status;
+	}
+
+	/*
+	 * There has been a protection violation within the request. Fall
+	 * back to byte granularity port I/O and ignore the failing bytes.
+	 * This provides Windows compatibility.
+	 */
+	for (i = 0; i < width; i += 8) {
+
+		/* Validate and write one byte */
+
+		if (acpi_hw_validate_io_request(address, 8) == AE_OK) {
+			status =
+			    acpi_os_write_port(address, (value >> i) & 0xFF, 8);
+			if (ACPI_FAILURE(status)) {
 				return status;
+			}
+		}
+
+		address++;
+	}
+
+	return AE_OK;
 }

drivers/acpi/acpica/rscreate.c

@@ -191,8 +191,6 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 	user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
 
 	for (index = 0; index < number_of_elements; index++) {
-		int source_name_index = 2;
-		int source_index_index = 3;
 
 		/*
 		 * Point user_prt past this current structure
@@ -261,27 +259,6 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 			return_ACPI_STATUS(AE_BAD_DATA);
 		}
 
-		/*
-		 * If BIOS erroneously reversed the _PRT source_name and source_index,
-		 * then reverse them back.
-		 */
-		if ((sub_object_list[3])->common.type !=
-		    ACPI_TYPE_INTEGER) {
-			if (acpi_gbl_enable_interpreter_slack) {
-				source_name_index = 3;
-				source_index_index = 2;
-				printk(KERN_WARNING
-				       "ACPI: Handling Garbled _PRT entry\n");
-			} else {
-				ACPI_ERROR((AE_INFO,
-					    "(PRT[%X].source_index) Need Integer, found %s",
-					    index,
-					    acpi_ut_get_object_type_name
-					    (sub_object_list[3])));
-				return_ACPI_STATUS(AE_BAD_DATA);
-			}
-		}
-
 		user_prt->pin = (u32) obj_desc->integer.value;
 
 		/*
@@ -304,7 +281,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 		 * 3) Third subobject: Dereference the PRT.source_name
 		 * The name may be unresolved (slack mode), so allow a null object
 		 */
-		obj_desc = sub_object_list[source_name_index];
+		obj_desc = sub_object_list[2];
 		if (obj_desc) {
 			switch (obj_desc->common.type) {
 			case ACPI_TYPE_LOCAL_REFERENCE:
@@ -378,7 +355,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
 
 		/* 4) Fourth subobject: Dereference the PRT.source_index */
 
-		obj_desc = sub_object_list[source_index_index];
+		obj_desc = sub_object_list[3];
 		if (obj_desc->common.type != ACPI_TYPE_INTEGER) {
 			ACPI_ERROR((AE_INFO,
 				    "(PRT[%X].SourceIndex) Need Integer, found %s",

drivers/acpi/ec.c

@@ -1065,6 +1065,7 @@ static int acpi_ec_resume(struct acpi_device *device)
 	struct acpi_ec *ec = acpi_driver_data(device);
 	/* Enable use of GPE back */
 	clear_bit(EC_FLAGS_NO_GPE, &ec->flags);
+	set_bit(EC_FLAGS_GPE_MODE, &ec->flags);
 	acpi_enable_gpe(NULL, ec->gpe);
 	return 0;
 }

drivers/acpi/osl.c

@@ -353,8 +353,10 @@ static irqreturn_t acpi_irq(int irq, void *dev_id)
 	if (handled) {
 		acpi_irq_handled++;
 		return IRQ_HANDLED;
-	} else
+	} else {
+		acpi_irq_not_handled++;
 		return IRQ_NONE;
+	}
 }
 
 acpi_status

drivers/acpi/processor_idle.c

@@ -581,6 +581,11 @@ static int acpi_processor_power_verify(struct acpi_processor *pr)
 	for (i = 1; i < ACPI_PROCESSOR_MAX_POWER; i++) {
 		struct acpi_processor_cx *cx = &pr->power.states[i];
 
+#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
+		/* TSC could halt in idle, so notify users */
+		if (tsc_halts_in_c(cx->type))
+			mark_tsc_unstable("TSC halts in idle");;
+#endif
 		switch (cx->type) {
 		case ACPI_STATE_C1:
 			cx->valid = 1;
@@ -657,11 +662,9 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
 
 	seq_printf(seq, "active state:            C%zd\n"
 		   "max_cstate:              C%d\n"
-		   "bus master activity:     %08x\n"
 		   "maximum allowed latency: %d usec\n",
 		   pr->power.state ? pr->power.state - pr->power.states : 0,
-		   max_cstate, (unsigned)pr->power.bm_activity,
-		   pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
+		   max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
 
 	seq_puts(seq, "states:\n");
 
@@ -871,11 +874,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 	kt2 = ktime_get_real();
 	idle_time =  ktime_to_us(ktime_sub(kt2, kt1));
 
-#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
-	/* TSC could halt in idle, so notify users */
-	if (tsc_halts_in_c(cx->type))
-		mark_tsc_unstable("TSC halts in idle");;
-#endif
 	sleep_ticks = us_to_pm_timer_ticks(idle_time);
 
 	/* Tell the scheduler how much we idled: */
@@ -955,6 +953,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 	 */
 	acpi_state_timer_broadcast(pr, cx, 1);
 
+	kt1 = ktime_get_real();
 	/*
 	 * disable bus master
 	 * bm_check implies we need ARB_DIS
@@ -976,10 +975,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 		ACPI_FLUSH_CPU_CACHE();
 	}
 
-	kt1 = ktime_get_real();
 	acpi_idle_do_entry(cx);
-	kt2 = ktime_get_real();
-	idle_time =  ktime_to_us(ktime_sub(kt2, kt1));
 
 	/* Re-enable bus master arbitration */
 	if (pr->flags.bm_check && pr->flags.bm_control) {
@@ -988,12 +984,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 		c3_cpu_count--;
 		spin_unlock(&c3_lock);
 	}
+	kt2 = ktime_get_real();
+	idle_time =  ktime_to_us(ktime_sub(kt2, kt1));
 
-#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86)
-	/* TSC could halt in idle, so notify users */
-	if (tsc_halts_in_c(ACPI_STATE_C3))
-		mark_tsc_unstable("TSC halts in idle");
-#endif
 	sleep_ticks = us_to_pm_timer_ticks(idle_time);
 	/* Tell the scheduler how much we idled: */
 	sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
@@ -1037,6 +1030,9 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
 		dev->states[i].desc[0] = '\0';
 	}
 
+	if (max_cstate == 0)
+		max_cstate = 1;
+
 	for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
 		cx = &pr->power.states[i];
 		state = &dev->states[count];

drivers/acpi/sleep.c

@@ -713,6 +713,32 @@ static void acpi_power_off(void)
 	acpi_enter_sleep_state(ACPI_STATE_S5);
 }
 
+/*
+ * ACPI 2.0 created the optional _GTS and _BFS,
+ * but industry adoption has been neither rapid nor broad.
+ *
+ * Linux gets into trouble when it executes poorly validated
+ * paths through the BIOS, so disable _GTS and _BFS by default,
+ * but do speak up and offer the option to enable them.
+ */
+void __init acpi_gts_bfs_check(void)
+{
+	acpi_handle dummy;
+
+	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__GTS, &dummy)))
+	{
+		printk(KERN_NOTICE PREFIX "BIOS offers _GTS\n");
+		printk(KERN_NOTICE PREFIX "If \"acpi.gts=1\" improves suspend, "
+			"please notify linux-acpi@vger.kernel.org\n");
+	}
+	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__BFS, &dummy)))
+	{
+		printk(KERN_NOTICE PREFIX "BIOS offers _BFS\n");
+		printk(KERN_NOTICE PREFIX "If \"acpi.bfs=1\" improves resume, "
+			"please notify linux-acpi@vger.kernel.org\n");
+	}
+}
+
 int __init acpi_sleep_init(void)
 {
 	acpi_status status;
@@ -771,5 +797,6 @@ int __init acpi_sleep_init(void)
 	 * object can also be evaluated when the system enters S5.
 	 */
 	register_reboot_notifier(&tts_notifier);
+	acpi_gts_bfs_check();
 	return 0;
 }

drivers/acpi/system.c

@@ -38,6 +38,7 @@ ACPI_MODULE_NAME("system");
 #define ACPI_SYSTEM_DEVICE_NAME		"System"
 
 u32 acpi_irq_handled;
+u32 acpi_irq_not_handled;
 
 /*
  * Make ACPICA version work as module param
@@ -214,8 +215,9 @@ static int acpi_system_sysfs_init(void)
 
 #define COUNT_GPE 0
 #define COUNT_SCI 1	/* acpi_irq_handled */
-#define COUNT_ERROR 2	/* other */
-#define NUM_COUNTERS_EXTRA 3
+#define COUNT_SCI_NOT 2	/* acpi_irq_not_handled */
+#define COUNT_ERROR 3	/* other */
+#define NUM_COUNTERS_EXTRA 4
 
 struct event_counter {
 	u32 count;
@@ -317,6 +319,8 @@ static ssize_t counter_show(struct kobject *kobj,
 
 	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
 		acpi_irq_handled;
+	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
+		acpi_irq_not_handled;
 	all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
 		acpi_gpe_count;
 
@@ -363,6 +367,7 @@ static ssize_t counter_set(struct kobject *kobj,
 			all_counters[i].count = 0;
 		acpi_gpe_count = 0;
 		acpi_irq_handled = 0;
+		acpi_irq_not_handled = 0;
 		goto end;
 	}
 
@@ -456,6 +461,8 @@ void acpi_irq_stats_init(void)
 			sprintf(buffer, "gpe_all");
 		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
 			sprintf(buffer, "sci");
+		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
+			sprintf(buffer, "sci_not");
 		else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
 			sprintf(buffer, "error");
 		else

drivers/acpi/thermal.c

@@ -909,7 +909,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
 			thermal_zone_device_register("acpitz", trips, tz,
 						     &acpi_thermal_zone_ops,
 						     0, 0, 0,
-						     tz->polling_frequency);
+						     tz->polling_frequency*100);
 	if (IS_ERR(tz->thermal_zone))
 		return -ENODEV;
 

drivers/acpi/video.c

@@ -770,10 +770,12 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 	 * In this case, the first two elements in _BCL packages
 	 * are also supported brightness levels that OS should take care of.
 	 */
-	for (i = 2; i < count; i++)
-		if (br->levels[i] == br->levels[0] ||
-		    br->levels[i] == br->levels[1])
+	for (i = 2; i < count; i++) {
+		if (br->levels[i] == br->levels[0])
 			level_ac_battery++;
+		if (br->levels[i] == br->levels[1])
+			level_ac_battery++;
+	}
 
 	if (level_ac_battery < 2) {
 		level_ac_battery = 2 - level_ac_battery;
@@ -807,12 +809,19 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 	br->flags._BCM_use_index = br->flags._BCL_use_index;
 
 	/* _BQC uses INDEX while _BCL uses VALUE in some laptops */
-	br->curr = max_level;
+	br->curr = level_old = max_level;
+
+	if (!device->cap._BQC)
+		goto set_level;
+
 	result = acpi_video_device_lcd_get_level_current(device, &level_old);
 	if (result)
 		goto out_free_levels;
 
-	result = acpi_video_device_lcd_set_level(device, br->curr);
+	/*
+	 * Set the level to maximum and check if _BQC uses indexed value
+	 */
+	result = acpi_video_device_lcd_set_level(device, max_level);
 	if (result)
 		goto out_free_levels;
 
@@ -820,25 +829,19 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 	if (result)
 		goto out_free_levels;
 
-	if ((level != level_old) && !br->flags._BCM_use_index) {
-		/* Note:
-		 * This piece of code does not work correctly if the current
-		 * brightness levels is 0.
-		 * But I guess boxes that boot with such a dark screen are rare
-		 * and no more code is needed to cover this specifial case.
-		 */
+	br->flags._BQC_use_index = (level == max_level ? 0 : 1);
 
-		if (level_ac_battery != 2) {
-			/*
-			 * For now, we don't support the _BCL like this:
-			 * 16, 15, 0, 1, 2, 3, ..., 14, 15, 16
-			 * because we may mess up the index returned by _BQC.
-			 * Plus: we have not got a box like this.
-			 */
-			ACPI_ERROR((AE_INFO, "_BCL not supported\n"));
-		}
-		br->flags._BQC_use_index = 1;
-	}
+	if (!br->flags._BQC_use_index)
+		goto set_level;
+
+	if (br->flags._BCL_reversed)
+		level_old = (br->count - 1) - level_old;
+	level_old = br->levels[level_old];
+
+set_level:
+	result = acpi_video_device_lcd_set_level(device, level_old);
+	if (result)
+		goto out_free_levels;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "found %d brightness levels\n", count - 2));

drivers/gpu/drm/i915/i915_opregion.c

@@ -370,11 +370,8 @@ int intel_opregion_init(struct drm_device *dev, int resume)
 	if (mboxes & MBOX_ACPI) {
 		DRM_DEBUG("Public ACPI methods supported\n");
 		opregion->acpi = base + OPREGION_ACPI_OFFSET;
-		if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+		if (drm_core_check_feature(dev, DRIVER_MODESET))
 			intel_didl_outputs(dev);
-			if (!resume)
-				acpi_video_register();
-		}
 	} else {
 		DRM_DEBUG("Public ACPI methods not supported\n");
 		err = -ENOTSUPP;
@@ -391,6 +388,10 @@ int intel_opregion_init(struct drm_device *dev, int resume)
 		opregion->asle = base + OPREGION_ASLE_OFFSET;
 	}
 
+	if (!resume)
+		acpi_video_register();
+
+
 	/* Notify BIOS we are ready to handle ACPI video ext notifs.
 	 * Right now, all the events are handled by the ACPI video module.
 	 * We don't actually need to do anything with them. */

drivers/platform/x86/sony-laptop.c

@@ -317,7 +317,8 @@ static void sony_laptop_report_input_event(u8 event)
 	struct input_dev *key_dev = sony_laptop_input.key_dev;
 	struct sony_laptop_keypress kp = { NULL };
 
-	if (event == SONYPI_EVENT_FNKEY_RELEASED) {
+	if (event == SONYPI_EVENT_FNKEY_RELEASED ||
+			event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
 		/* Nothing, not all VAIOs generate this event */
 		return;
 	}
@@ -905,7 +906,6 @@ static struct sony_nc_event sony_127_events[] = {
 	{ 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
 	{ 0x86, SONYPI_EVENT_PKEY_P5 },
 	{ 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
-	{ 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
 	{ 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
 	{ 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
 	{ 0, 0 },
@@ -1004,6 +1004,7 @@ static int sony_nc_function_setup(struct acpi_device *device)
 	sony_call_snc_handle(0x0100, 0, &result);
 	sony_call_snc_handle(0x0101, 0, &result);
 	sony_call_snc_handle(0x0102, 0x100, &result);
+	sony_call_snc_handle(0x0127, 0, &result);
 
 	return 0;
 }
@@ -1040,7 +1041,7 @@ static int sony_nc_resume(struct acpi_device *device)
 
 	/* set the last requested brightness level */
 	if (sony_backlight_device &&
-			!sony_backlight_update_status(sony_backlight_device))
+			sony_backlight_update_status(sony_backlight_device) < 0)
 		printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
 
 	return 0;
@@ -1102,8 +1103,11 @@ static int sony_nc_setup_wifi_rfkill(struct acpi_device *device)
 	err = rfkill_register(sony_wifi_rfkill);
 	if (err)
 		rfkill_free(sony_wifi_rfkill);
-	else
+	else {
 		sony_rfkill_devices[SONY_WIFI] = sony_wifi_rfkill;
+		sony_nc_rfkill_set(sony_wifi_rfkill->data,
+				RFKILL_STATE_UNBLOCKED);
+	}
 	return err;
 }
 
@@ -1124,8 +1128,11 @@ static int sony_nc_setup_bluetooth_rfkill(struct acpi_device *device)
 	err = rfkill_register(sony_bluetooth_rfkill);
 	if (err)
 		rfkill_free(sony_bluetooth_rfkill);
-	else
+	else {
 		sony_rfkill_devices[SONY_BLUETOOTH] = sony_bluetooth_rfkill;
+		sony_nc_rfkill_set(sony_bluetooth_rfkill->data,
+				RFKILL_STATE_UNBLOCKED);
+	}
 	return err;
 }
 
@@ -1145,8 +1152,11 @@ static int sony_nc_setup_wwan_rfkill(struct acpi_device *device)
 	err = rfkill_register(sony_wwan_rfkill);
 	if (err)
 		rfkill_free(sony_wwan_rfkill);
-	else
+	else {
 		sony_rfkill_devices[SONY_WWAN] = sony_wwan_rfkill;
+		sony_nc_rfkill_set(sony_wwan_rfkill->data,
+				RFKILL_STATE_UNBLOCKED);
+	}
 	return err;
 }
 
@@ -1166,8 +1176,11 @@ static int sony_nc_setup_wimax_rfkill(struct acpi_device *device)
 	err = rfkill_register(sony_wimax_rfkill);
 	if (err)
 		rfkill_free(sony_wimax_rfkill);
-	else
+	else {
 		sony_rfkill_devices[SONY_WIMAX] = sony_wimax_rfkill;
+		sony_nc_rfkill_set(sony_wimax_rfkill->data,
+				RFKILL_STATE_UNBLOCKED);
+	}
 	return err;
 }
 

drivers/platform/x86/thinkpad_acpi.c

@@ -21,7 +21,7 @@
  *  02110-1301, USA.
  */
 
-#define TPACPI_VERSION "0.22"
+#define TPACPI_VERSION "0.23"
 #define TPACPI_SYSFS_VERSION 0x020300
 
 /*
@@ -303,11 +303,17 @@ static u32 dbg_level;
 
 static struct workqueue_struct *tpacpi_wq;
 
+enum led_status_t {
+	TPACPI_LED_OFF = 0,
+	TPACPI_LED_ON,
+	TPACPI_LED_BLINK,
+};
+
 /* Special LED class that can defer work */
 struct tpacpi_led_classdev {
 	struct led_classdev led_classdev;
 	struct work_struct work;
-	enum led_brightness new_brightness;
+	enum led_status_t new_state;
 	unsigned int led;
 };
 
@@ -2946,12 +2952,18 @@ static int hotkey_read(char *p)
 	return len;
 }
 
-static void hotkey_enabledisable_warn(void)
+static void hotkey_enabledisable_warn(bool enable)
 {
 	tpacpi_log_usertask("procfs hotkey enable/disable");
-	WARN(1, TPACPI_WARN
+	if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable),
+			TPACPI_WARN
 			"hotkey enable/disable functionality has been "
-	     "removed from the driver. Hotkeys are always enabled.\n");
+			"removed from the driver.  Hotkeys are always "
+			"enabled\n"))
+		printk(TPACPI_ERR
+			"Please remove the hotkey=enable module "
+			"parameter, it is deprecated.  Hotkeys are always "
+			"enabled\n");
 }
 
 static int hotkey_write(char *buf)
@@ -2971,9 +2983,9 @@ static int hotkey_write(char *buf)
 	res = 0;
 	while ((cmd = next_cmd(&buf))) {
 		if (strlencmp(cmd, "enable") == 0) {
-			hotkey_enabledisable_warn();
+			hotkey_enabledisable_warn(1);
 		} else if (strlencmp(cmd, "disable") == 0) {
-			hotkey_enabledisable_warn();
+			hotkey_enabledisable_warn(0);
 			res = -EPERM;
 		} else if (strlencmp(cmd, "reset") == 0) {
 			mask = hotkey_orig_mask;
@@ -4207,7 +4219,7 @@ static void light_set_status_worker(struct work_struct *work)
 			container_of(work, struct tpacpi_led_classdev, work);
 
 	if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
-		light_set_status((data->new_brightness != LED_OFF));
+		light_set_status((data->new_state != TPACPI_LED_OFF));
 }
 
 static void light_sysfs_set(struct led_classdev *led_cdev,
@@ -4217,7 +4229,8 @@ static void light_sysfs_set(struct led_classdev *led_cdev,
 		container_of(led_cdev,
 			     struct tpacpi_led_classdev,
 			     led_classdev);
-	data->new_brightness = brightness;
+	data->new_state = (brightness != LED_OFF) ?
+				TPACPI_LED_ON : TPACPI_LED_OFF;
 	queue_work(tpacpi_wq, &data->work);
 }
 
@@ -4724,12 +4737,6 @@ enum {	/* For TPACPI_LED_OLD */
 	TPACPI_LED_EC_HLMS = 0x0e,	/* EC reg to select led to command */
 };
 
-enum led_status_t {
-	TPACPI_LED_OFF = 0,
-	TPACPI_LED_ON,
-	TPACPI_LED_BLINK,
-};
-
 static enum led_access_mode led_supported;
 
 TPACPI_HANDLE(led, ec, "SLED",	/* 570 */
@@ -4841,23 +4848,13 @@ static int led_set_status(const unsigned int led,
 	return rc;
 }
 
-static void led_sysfs_set_status(unsigned int led,
-				 enum led_brightness brightness)
-{
-	led_set_status(led,
-			(brightness == LED_OFF) ?
-			TPACPI_LED_OFF :
-			(tpacpi_led_state_cache[led] == TPACPI_LED_BLINK) ?
-				TPACPI_LED_BLINK : TPACPI_LED_ON);
-}
-
 static void led_set_status_worker(struct work_struct *work)
 {
 	struct tpacpi_led_classdev *data =
 		container_of(work, struct tpacpi_led_classdev, work);
 
 	if (likely(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))
-		led_sysfs_set_status(data->led, data->new_brightness);
+		led_set_status(data->led, data->new_state);
 }
 
 static void led_sysfs_set(struct led_classdev *led_cdev,
@@ -4866,7 +4863,13 @@ static void led_sysfs_set(struct led_classdev *led_cdev,
 	struct tpacpi_led_classdev *data = container_of(led_cdev,
 			     struct tpacpi_led_classdev, led_classdev);
 
-	data->new_brightness = brightness;
+	if (brightness == LED_OFF)
+		data->new_state = TPACPI_LED_OFF;
+	else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK)
+		data->new_state = TPACPI_LED_ON;
+	else
+		data->new_state = TPACPI_LED_BLINK;
+
 	queue_work(tpacpi_wq, &data->work);
 }
 
@@ -4884,7 +4887,7 @@ static int led_sysfs_blink_set(struct led_classdev *led_cdev,
 	} else if ((*delay_on != 500) || (*delay_off != 500))
 		return -EINVAL;
 
-	data->new_brightness = TPACPI_LED_BLINK;
+	data->new_state = TPACPI_LED_BLINK;
 	queue_work(tpacpi_wq, &data->work);
 
 	return 0;
@@ -7857,6 +7860,15 @@ static int __init thinkpad_acpi_module_init(void)
 
 MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
 
+/*
+ * This will autoload the driver in almost every ThinkPad
+ * in widespread use.
+ *
+ * Only _VERY_ old models, like the 240, 240x and 570 lack
+ * the HKEY event interface.
+ */
+MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids);
+
 /*
  * DMI matching for module autoloading
  *
@@ -7869,18 +7881,13 @@ MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
 #define IBM_BIOS_MODULE_ALIAS(__type) \
 	MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
 
-/* Non-ancient thinkpads */
-MODULE_ALIAS("dmi:bvnIBM:*:svnIBM:*:pvrThinkPad*:rvnIBM:*");
-MODULE_ALIAS("dmi:bvnLENOVO:*:svnLENOVO:*:pvrThinkPad*:rvnLENOVO:*");
-
 /* Ancient thinkpad BIOSes have to be identified by
  * BIOS type or model number, and there are far less
  * BIOS types than model numbers... */
-IBM_BIOS_MODULE_ALIAS("I[BDHIMNOTWVYZ]");
-IBM_BIOS_MODULE_ALIAS("1[0368A-GIKM-PST]");
-IBM_BIOS_MODULE_ALIAS("K[UX-Z]");
+IBM_BIOS_MODULE_ALIAS("I[MU]");		/* 570, 570e */
 
-MODULE_AUTHOR("Borislav Deianov, Henrique de Moraes Holschuh");
+MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>");
+MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>");
 MODULE_DESCRIPTION(TPACPI_DESC);
 MODULE_VERSION(TPACPI_VERSION);
 MODULE_LICENSE("GPL");

include/acpi/processor.h

@@ -84,7 +84,6 @@ struct acpi_processor_power {
 	struct acpi_processor_cx *state;
 	unsigned long bm_check_timestamp;
 	u32 default_state;
-	u32 bm_activity;
 	int count;
 	struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
 	int timer_broadcast_on_state;

include/linux/acpi.h

@@ -111,6 +111,7 @@ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 void acpi_irq_stats_init(void);
 extern u32 acpi_irq_handled;
+extern u32 acpi_irq_not_handled;
 
 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 extern int pci_mmcfg_config_num;