Pull bugzilla-9362 into release branch

drivers/acpi/sbs.c

@@ -54,12 +54,6 @@
 #define ACPI_BATTERY_DIR_NAME		"BAT%i"
 #define ACPI_AC_DIR_NAME		"AC0"
 
-enum acpi_sbs_device_addr {
-	ACPI_SBS_CHARGER = 0x9,
-	ACPI_SBS_MANAGER = 0xa,
-	ACPI_SBS_BATTERY = 0xb,
-};
-
 #define ACPI_SBS_NOTIFY_STATUS		0x80
 #define ACPI_SBS_NOTIFY_INFO		0x81
 
@@ -539,7 +533,7 @@ static struct proc_dir_entry *acpi_battery_dir = NULL;
 
 static inline char *acpi_battery_units(struct acpi_battery *battery)
 {
-	return acpi_battery_mode(battery) ? " mWh" : " mAh";
+	return acpi_battery_mode(battery) ? " mW" : " mA";
 }
 
 
@@ -556,10 +550,10 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
 	if (!battery->present)
 		goto end;
 
-	seq_printf(seq, "design capacity:         %i%s\n",
+	seq_printf(seq, "design capacity:         %i%sh\n",
 		   battery->design_capacity * acpi_battery_scale(battery),
 		   acpi_battery_units(battery));
-	seq_printf(seq, "last full capacity:      %i%s\n",
+	seq_printf(seq, "last full capacity:      %i%sh\n",
 		   battery->full_charge_capacity * acpi_battery_scale(battery),
 		   acpi_battery_units(battery));
 	seq_printf(seq, "battery technology:      rechargeable\n");
@@ -590,7 +584,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
 {
 	struct acpi_battery *battery = seq->private;
 	struct acpi_sbs *sbs = battery->sbs;
-	int result = 0;
+	int rate;
 
 	mutex_lock(&sbs->lock);
 	seq_printf(seq, "present:                 %s\n",
@@ -604,9 +598,12 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
 	seq_printf(seq, "charging state:          %s\n",
 		   (battery->current_now < 0) ? "discharging" :
 		   ((battery->current_now > 0) ? "charging" : "charged"));
-	seq_printf(seq, "present rate:            %d mA\n",
-		   abs(battery->current_now) * acpi_battery_ipscale(battery));
-	seq_printf(seq, "remaining capacity:      %i%s\n",
+	rate = abs(battery->current_now) * acpi_battery_ipscale(battery);
+	rate *= (acpi_battery_mode(battery))?(battery->voltage_now *
+			acpi_battery_vscale(battery)/1000):1;
+	seq_printf(seq, "present rate:            %d%s\n", rate,
+		   acpi_battery_units(battery));
+	seq_printf(seq, "remaining capacity:      %i%sh\n",
 		   battery->capacity_now * acpi_battery_scale(battery),
 		   acpi_battery_units(battery));
 	seq_printf(seq, "present voltage:         %i mV\n",
@@ -614,7 +611,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
 
       end:
 	mutex_unlock(&sbs->lock);
-	return result;
+	return 0;
 }
 
 static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
@@ -638,7 +635,7 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
 	acpi_battery_get_alarm(battery);
 	seq_printf(seq, "alarm:                   ");
 	if (battery->alarm_capacity)
-		seq_printf(seq, "%i%s\n",
+		seq_printf(seq, "%i%sh\n",
 			   battery->alarm_capacity *
 			   acpi_battery_scale(battery),
 			   acpi_battery_units(battery));

drivers/acpi/sbshc.c

@@ -202,10 +202,9 @@ int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc)
 
 EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback);
 
-static void acpi_smbus_callback(void *context)
+static inline void acpi_smbus_callback(void *context)
 {
 	struct acpi_smb_hc *hc = context;
-
 	if (hc->callback)
 		hc->callback(hc->context);
 }
@@ -214,6 +213,7 @@ static int smbus_alarm(void *context)
 {
 	struct acpi_smb_hc *hc = context;
 	union acpi_smb_status status;
+	u8 address;
 	if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
 		return 0;
 	/* Check if it is only a completion notify */
@@ -222,9 +222,18 @@ static int smbus_alarm(void *context)
 	if (!status.fields.alarm)
 		return 0;
 	mutex_lock(&hc->lock);
+	smb_hc_read(hc, ACPI_SMB_ALARM_ADDRESS, &address);
+	status.fields.alarm = 0;
 	smb_hc_write(hc, ACPI_SMB_STATUS, status.raw);
-	if (hc->callback)
-		acpi_os_execute(OSL_GPE_HANDLER, acpi_smbus_callback, hc);
+	/* We are only interested in events coming from known devices */
+	switch (address >> 1) {
+		case ACPI_SBS_CHARGER:
+		case ACPI_SBS_MANAGER:
+		case ACPI_SBS_BATTERY:
+			acpi_os_execute(OSL_GPE_HANDLER,
+					acpi_smbus_callback, hc);
+		default:;
+	}
 	mutex_unlock(&hc->lock);
 	return 0;
 }

drivers/acpi/sbshc.h

@@ -16,6 +16,12 @@ enum acpi_smb_protocol {
 
 static const u8 SMBUS_PEC = 0x80;
 
+enum acpi_sbs_device_addr {
+	ACPI_SBS_CHARGER = 0x9,
+	ACPI_SBS_MANAGER = 0xa,
+	ACPI_SBS_BATTERY = 0xb,
+};
+
 typedef void (*smbus_alarm_callback)(void *context);
 
 extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,