p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge branches 'acpi-ec' and 'acpi-processor' 

* acpi-ec:
  ACPI / EC: Process rather than discard events in acpi_ec_clear

* acpi-processor:
  ACPI / processor: Fix failure of loading acpi-cpufreq driver
This commit is contained in:
Rafael J. Wysocki 2014-05-03 00:20:31 +02:00
parent 25d6db963c 3eba563e28 4985c32ee4
commit de3afce533
2 changed files with 16 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/acpi/acpi_processor.c
View File

@ -170,6 +170,9 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
acpi_status status;
int ret;
if (pr->apic_id == -1)
return -ENODEV;
status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta);
if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT))
return -ENODEV;
@ -260,10 +263,8 @@ static int acpi_processor_get_info(struct acpi_device *device)
}
apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id);
if (apic_id < 0) {
if (apic_id < 0)
acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n");
return -ENODEV;
}
pr->apic_id = apic_id;
cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id);

21
drivers/acpi/ec.c
View File

@ -206,13 +206,13 @@ static void advance_transaction(struct acpi_ec *ec, u8 status)
spin_unlock_irqrestore(&ec->lock, flags);
}
static int acpi_ec_sync_query(struct acpi_ec *ec);
static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data);
static int ec_check_sci_sync(struct acpi_ec *ec, u8 state)
{
if (state & ACPI_EC_FLAG_SCI) {
if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
return acpi_ec_sync_query(ec);
return acpi_ec_sync_query(ec, NULL);
}
return 0;
}
@ -443,10 +443,8 @@ acpi_handle ec_get_handle(void)
EXPORT_SYMBOL(ec_get_handle);
static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data);
/*
* Clears stale _Q events that might have accumulated in the EC.
* Process _Q events that might have accumulated in the EC.
* Run with locked ec mutex.
*/
static void acpi_ec_clear(struct acpi_ec *ec)
@ -455,7 +453,7 @@ static void acpi_ec_clear(struct acpi_ec *ec)
u8 value = 0;
for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) {
status = acpi_ec_query_unlocked(ec, &value);
status = acpi_ec_sync_query(ec, &value);
if (status || !value)
break;
}
@ -582,13 +580,18 @@ static void acpi_ec_run(void *cxt)
kfree(handler);
}
static int acpi_ec_sync_query(struct acpi_ec *ec)
static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data)
{
u8 value = 0;
int status;
struct acpi_ec_query_handler *handler, *copy;
if ((status = acpi_ec_query_unlocked(ec, &value)))
status = acpi_ec_query_unlocked(ec, &value);
if (data)
*data = value;
if (status)
return status;
list_for_each_entry(handler, &ec->list, node) {
if (value == handler->query_bit) {
/* have custom handler for this bit */
@ -612,7 +615,7 @@ static void acpi_ec_gpe_query(void *ec_cxt)
if (!ec)
return;
mutex_lock(&ec->mutex);
acpi_ec_sync_query(ec);
acpi_ec_sync_query(ec, NULL);
mutex_unlock(&ec->mutex);
}