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-rw-r--r--drivers/acpi/battery.c69
-rw-r--r--drivers/acpi/button.c17
-rw-r--r--drivers/acpi/osi.c8
3 files changed, 62 insertions, 32 deletions
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index d79ad844c78f..cb97b6105f52 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -23,18 +23,18 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/async.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/jiffies.h>
-#include <linux/async.h>
-#include <linux/dmi.h>
-#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/suspend.h>
+#include <linux/types.h>
+
#include <asm/unaligned.h>
#ifdef CONFIG_ACPI_PROCFS_POWER
@@ -364,6 +364,20 @@ static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
+static enum power_supply_property energy_battery_full_cap_broken_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_POWER_NOW,
+ POWER_SUPPLY_PROP_ENERGY_NOW,
+ POWER_SUPPLY_PROP_MODEL_NAME,
+ POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_SERIAL_NUMBER,
+};
+
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
@@ -577,8 +591,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
battery->rate_now != ACPI_BATTERY_VALUE_UNKNOWN &&
(s16)(battery->rate_now) < 0) {
battery->rate_now = abs((s16)battery->rate_now);
- printk_once(KERN_WARNING FW_BUG
- "battery: (dis)charge rate invalid.\n");
+ pr_warn_once(FW_BUG "battery: (dis)charge rate invalid.\n");
}
if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)
@@ -799,6 +812,11 @@ static int sysfs_add_battery(struct acpi_battery *battery)
battery->bat_desc.properties = charge_battery_props;
battery->bat_desc.num_properties =
ARRAY_SIZE(charge_battery_props);
+ } else if (battery->full_charge_capacity == 0) {
+ battery->bat_desc.properties =
+ energy_battery_full_cap_broken_props;
+ battery->bat_desc.num_properties =
+ ARRAY_SIZE(energy_battery_full_cap_broken_props);
} else {
battery->bat_desc.properties = energy_battery_props;
battery->bat_desc.num_properties =
@@ -918,10 +936,11 @@ static void acpi_battery_quirks(struct acpi_battery *battery)
static int acpi_battery_update(struct acpi_battery *battery, bool resume)
{
- int result, old_present = acpi_battery_present(battery);
- result = acpi_battery_get_status(battery);
+ int result = acpi_battery_get_status(battery);
+
if (result)
return result;
+
if (!acpi_battery_present(battery)) {
sysfs_remove_battery(battery);
battery->update_time = 0;
@@ -931,8 +950,7 @@ static int acpi_battery_update(struct acpi_battery *battery, bool resume)
if (resume)
return 0;
- if (!battery->update_time ||
- old_present != acpi_battery_present(battery)) {
+ if (!battery->update_time) {
result = acpi_battery_get_info(battery);
if (result)
return result;
@@ -1021,7 +1039,7 @@ static int acpi_battery_info_proc_show(struct seq_file *seq, void *offset)
acpi_battery_units(battery));
seq_printf(seq, "battery technology: %srechargeable\n",
- (!battery->technology)?"non-":"");
+ battery->technology ? "" : "non-");
if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design voltage: unknown\n");
@@ -1112,11 +1130,12 @@ static int acpi_battery_alarm_proc_show(struct seq_file *seq, void *offset)
goto end;
}
seq_printf(seq, "alarm: ");
- if (!battery->alarm)
- seq_printf(seq, "unsupported\n");
- else
+ if (battery->alarm) {
seq_printf(seq, "%u %sh\n", battery->alarm,
acpi_battery_units(battery));
+ } else {
+ seq_printf(seq, "unsupported\n");
+ }
end:
if (result)
seq_printf(seq, "ERROR: Unable to read battery alarm\n");
@@ -1149,9 +1168,9 @@ static ssize_t acpi_battery_write_alarm(struct file *file,
}
result = acpi_battery_set_alarm(battery);
end:
- if (!result)
- return count;
- return result;
+ if (result)
+ return result;
+ return count;
}
static int acpi_battery_alarm_proc_open(struct inode *inode, struct file *file)
@@ -1170,8 +1189,7 @@ static const struct file_operations acpi_battery_alarm_fops = {
static int acpi_battery_add_fs(struct acpi_device *device)
{
- printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded,"
- " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
+ pr_warning(PREFIX "Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
acpi_battery_dir);
@@ -1247,7 +1265,9 @@ static int battery_notify(struct notifier_block *nb,
if (!acpi_battery_present(battery))
return 0;
- if (!battery->bat) {
+ if (battery->bat) {
+ acpi_battery_refresh(battery);
+ } else {
result = acpi_battery_get_info(battery);
if (result)
return result;
@@ -1255,8 +1275,7 @@ static int battery_notify(struct notifier_block *nb,
result = sysfs_add_battery(battery);
if (result)
return result;
- } else
- acpi_battery_refresh(battery);
+ }
acpi_battery_init_alarm(battery);
acpi_battery_get_state(battery);
@@ -1398,7 +1417,7 @@ static int acpi_battery_add(struct acpi_device *device)
}
#endif
- printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
+ pr_info(PREFIX "%s Slot [%s] (battery %s)\n",
ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
device->status.battery_present ? "present" : "absent");
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 2345a5ee2dbb..a19ff3977ac4 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -21,6 +21,7 @@
#define pr_fmt(fmt) "ACPI: button: " fmt
+#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -235,9 +236,6 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
button->last_time = ktime_get();
}
- if (state)
- acpi_pm_wakeup_event(&device->dev);
-
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
if (ret == NOTIFY_DONE)
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
@@ -252,7 +250,8 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
return ret;
}
-static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused acpi_button_state_seq_show(struct seq_file *seq,
+ void *offset)
{
struct acpi_device *device = seq->private;
int state;
@@ -366,7 +365,8 @@ int acpi_lid_open(void)
}
EXPORT_SYMBOL(acpi_lid_open);
-static int acpi_lid_update_state(struct acpi_device *device)
+static int acpi_lid_update_state(struct acpi_device *device,
+ bool signal_wakeup)
{
int state;
@@ -374,6 +374,9 @@ static int acpi_lid_update_state(struct acpi_device *device)
if (state < 0)
return state;
+ if (state && signal_wakeup)
+ acpi_pm_wakeup_event(&device->dev);
+
return acpi_lid_notify_state(device, state);
}
@@ -384,7 +387,7 @@ static void acpi_lid_initialize_state(struct acpi_device *device)
(void)acpi_lid_notify_state(device, 1);
break;
case ACPI_BUTTON_LID_INIT_METHOD:
- (void)acpi_lid_update_state(device);
+ (void)acpi_lid_update_state(device, false);
break;
case ACPI_BUTTON_LID_INIT_IGNORE:
default:
@@ -409,7 +412,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
users = button->input->users;
mutex_unlock(&button->input->mutex);
if (users)
- acpi_lid_update_state(device);
+ acpi_lid_update_state(device, true);
} else {
int keycode;
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index 8a8f43568510..b2a16ed7e81a 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -66,6 +66,14 @@ osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
* be removed if both new and old graphics cards are supported.
*/
{"Linux-Dell-Video", true},
+ /*
+ * Linux-Lenovo-NV-HDMI-Audio is used by BIOS to power on NVidia's HDMI
+ * audio device which is turned off for power-saving in Windows OS.
+ * This power management feature observed on some Lenovo Thinkpad
+ * systems which will not be able to output audio via HDMI without
+ * a BIOS workaround.
+ */
+ {"Linux-Lenovo-NV-HDMI-Audio", true},
};
static u32 acpi_osi_handler(acpi_string interface, u32 supported)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.