Merge branches 'acpi-resources', 'acpi-ac', 'acpi-scan' and 'acpi-battery'
* acpi-resources: ACPI / resources: only reject zero length resources based at address zero * acpi-ac: Revert "ACPI / AC: Remove AC's proc directory." * acpi-scan: ACPI / PNP: add soc_button_array device ID to PNP IDs list * acpi-battery: ACPI / battery: fix wrong value of capacity_now reported when fully charged ACPI / battery: Retry to get battery information if failed during probing
This commit is contained in:
Rafael J. Wysocki
Коммит
4488c99b63
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@ -30,6 +30,10 @@
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#include <linux/types.h>
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#include <linux/dmi.h>
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#include <linux/delay.h>
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#ifdef CONFIG_ACPI_PROCFS_POWER
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#endif
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#include <linux/platform_device.h>
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#include <linux/power_supply.h>
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#include <linux/acpi.h>
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@ -52,6 +56,7 @@ MODULE_AUTHOR("Paul Diefenbaugh");
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MODULE_DESCRIPTION("ACPI AC Adapter Driver");
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MODULE_LICENSE("GPL");
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static int acpi_ac_add(struct acpi_device *device);
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static int acpi_ac_remove(struct acpi_device *device);
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static void acpi_ac_notify(struct acpi_device *device, u32 event);
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@ -67,6 +72,13 @@ static int acpi_ac_resume(struct device *dev);
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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extern struct proc_dir_entry *acpi_lock_ac_dir(void);
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extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
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static int acpi_ac_open_fs(struct inode *inode, struct file *file);
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#endif
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static int ac_sleep_before_get_state_ms;
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static struct acpi_driver acpi_ac_driver = {
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@ -91,6 +103,16 @@ struct acpi_ac {
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#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
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#ifdef CONFIG_ACPI_PROCFS_POWER
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static const struct file_operations acpi_ac_fops = {
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.owner = THIS_MODULE,
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.open = acpi_ac_open_fs,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif
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/* --------------------------------------------------------------------------
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AC Adapter Management
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-------------------------------------------------------------------------- */
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@ -143,6 +165,83 @@ static enum power_supply_property ac_props[] = {
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POWER_SUPPLY_PROP_ONLINE,
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};
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#ifdef CONFIG_ACPI_PROCFS_POWER
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/* --------------------------------------------------------------------------
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FS Interface (/proc)
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-------------------------------------------------------------------------- */
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static struct proc_dir_entry *acpi_ac_dir;
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static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
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{
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struct acpi_ac *ac = seq->private;
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if (!ac)
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return 0;
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if (acpi_ac_get_state(ac)) {
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seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
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return 0;
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}
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seq_puts(seq, "state: ");
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switch (ac->state) {
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case ACPI_AC_STATUS_OFFLINE:
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seq_puts(seq, "off-line\n");
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break;
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case ACPI_AC_STATUS_ONLINE:
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seq_puts(seq, "on-line\n");
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break;
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default:
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seq_puts(seq, "unknown\n");
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break;
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}
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return 0;
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}
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static int acpi_ac_open_fs(struct inode *inode, struct file *file)
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{
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return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
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}
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static int acpi_ac_add_fs(struct acpi_ac *ac)
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{
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struct proc_dir_entry *entry = NULL;
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printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
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" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
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if (!acpi_device_dir(ac->device)) {
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acpi_device_dir(ac->device) =
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proc_mkdir(acpi_device_bid(ac->device), acpi_ac_dir);
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if (!acpi_device_dir(ac->device))
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return -ENODEV;
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}
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/* 'state' [R] */
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entry = proc_create_data(ACPI_AC_FILE_STATE,
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S_IRUGO, acpi_device_dir(ac->device),
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&acpi_ac_fops, ac);
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if (!entry)
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return -ENODEV;
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return 0;
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}
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static int acpi_ac_remove_fs(struct acpi_ac *ac)
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{
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if (acpi_device_dir(ac->device)) {
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remove_proc_entry(ACPI_AC_FILE_STATE,
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acpi_device_dir(ac->device));
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remove_proc_entry(acpi_device_bid(ac->device), acpi_ac_dir);
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acpi_device_dir(ac->device) = NULL;
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}
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return 0;
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}
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#endif
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/* --------------------------------------------------------------------------
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Driver Model
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-------------------------------------------------------------------------- */
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@ -243,6 +342,11 @@ static int acpi_ac_add(struct acpi_device *device)
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goto end;
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ac->charger.name = acpi_device_bid(device);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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result = acpi_ac_add_fs(ac);
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if (result)
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goto end;
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#endif
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ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
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ac->charger.properties = ac_props;
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ac->charger.num_properties = ARRAY_SIZE(ac_props);
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@ -258,8 +362,12 @@ static int acpi_ac_add(struct acpi_device *device)
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ac->battery_nb.notifier_call = acpi_ac_battery_notify;
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register_acpi_notifier(&ac->battery_nb);
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end:
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if (result)
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if (result) {
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_remove_fs(ac);
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#endif
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kfree(ac);
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}
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dmi_check_system(ac_dmi_table);
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return result;
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@ -303,6 +411,10 @@ static int acpi_ac_remove(struct acpi_device *device)
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power_supply_unregister(&ac->charger);
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unregister_acpi_notifier(&ac->battery_nb);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_remove_fs(ac);
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#endif
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kfree(ac);
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return 0;
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@ -315,9 +427,20 @@ static int __init acpi_ac_init(void)
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if (acpi_disabled)
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return -ENODEV;
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result = acpi_bus_register_driver(&acpi_ac_driver);
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if (result < 0)
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_ac_dir = acpi_lock_ac_dir();
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if (!acpi_ac_dir)
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return -ENODEV;
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#endif
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result = acpi_bus_register_driver(&acpi_ac_driver);
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if (result < 0) {
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_unlock_ac_dir(acpi_ac_dir);
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#endif
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return -ENODEV;
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}
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return 0;
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}
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@ -325,6 +448,9 @@ static int __init acpi_ac_init(void)
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static void __exit acpi_ac_exit(void)
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{
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acpi_bus_unregister_driver(&acpi_ac_driver);
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#ifdef CONFIG_ACPI_PROCFS_POWER
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acpi_unlock_ac_dir(acpi_ac_dir);
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#endif
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}
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module_init(acpi_ac_init);
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module_exit(acpi_ac_exit);
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@ -14,6 +14,8 @@
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#include <linux/module.h>
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static const struct acpi_device_id acpi_pnp_device_ids[] = {
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/* soc_button_array */
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{"PNP0C40"},
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/* pata_isapnp */
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{"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk controller */
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/* floppy */
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@ -35,6 +35,7 @@
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/suspend.h>
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#include <linux/delay.h>
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#include <asm/unaligned.h>
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#ifdef CONFIG_ACPI_PROCFS_POWER
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@ -534,6 +535,20 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
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" invalid.\n");
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}
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/*
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* When fully charged, some batteries wrongly report
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* capacity_now = design_capacity instead of = full_charge_capacity
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*/
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if (battery->capacity_now > battery->full_charge_capacity
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&& battery->full_charge_capacity != ACPI_BATTERY_VALUE_UNKNOWN) {
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battery->capacity_now = battery->full_charge_capacity;
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if (battery->capacity_now != battery->design_capacity)
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printk_once(KERN_WARNING FW_BUG
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"battery: reported current charge level (%d) "
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"is higher than reported maximum charge level (%d).\n",
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battery->capacity_now, battery->full_charge_capacity);
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}
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if (test_bit(ACPI_BATTERY_QUIRK_PERCENTAGE_CAPACITY, &battery->flags)
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&& battery->capacity_now >= 0 && battery->capacity_now <= 100)
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battery->capacity_now = (battery->capacity_now *
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@ -1151,6 +1166,28 @@ static struct dmi_system_id bat_dmi_table[] = {
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{},
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};
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/*
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* Some machines'(E,G Lenovo Z480) ECs are not stable
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* during boot up and this causes battery driver fails to be
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* probed due to failure of getting battery information
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* from EC sometimes. After several retries, the operation
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* may work. So add retry code here and 20ms sleep between
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* every retries.
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*/
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static int acpi_battery_update_retry(struct acpi_battery *battery)
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{
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int retry, ret;
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for (retry = 5; retry; retry--) {
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ret = acpi_battery_update(battery, false);
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if (!ret)
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break;
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msleep(20);
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}
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return ret;
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}
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static int acpi_battery_add(struct acpi_device *device)
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{
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int result = 0;
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@ -1169,9 +1206,11 @@ static int acpi_battery_add(struct acpi_device *device)
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mutex_init(&battery->sysfs_lock);
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if (acpi_has_method(battery->device->handle, "_BIX"))
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set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
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result = acpi_battery_update(battery, false);
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result = acpi_battery_update_retry(battery);
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if (result)
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goto fail;
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#ifdef CONFIG_ACPI_PROCFS_POWER
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result = acpi_battery_add_fs(device);
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#endif
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