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ACPI: EC: Output changes to operational mode

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Insert printk() for every change in operational mode.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2007-10-22 14:19:03 +04:00 committed by Len Brown
parent 66c5f4e736
commit 95b937e3f5
1 changed files with 14 additions and 3 deletions
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17
drivers/acpi/ec.c
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@ -173,12 +173,17 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
return 0;
clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
if (acpi_ec_check_status(ec, event)) {
if (event == ACPI_EC_EVENT_OBF_1)
if (event == ACPI_EC_EVENT_OBF_1) {
/* miss OBF = 1 GPE, don't expect it anymore */
printk(KERN_INFO PREFIX "missing OBF_1 confirmation,"
"switching to degraded mode.\n");
set_bit(EC_FLAGS_ONLY_IBF_GPE, &ec->flags);
else
} else {
/* missing GPEs, switch back to poll mode */
printk(KERN_INFO PREFIX "missing IBF_1 confirmations,"
"switch off interrupt mode.\n");
clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
}
return 0;
}
} else {
@ -491,8 +496,12 @@ static u32 acpi_ec_gpe_handler(void *data)
if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
status = acpi_os_execute(OSL_EC_BURST_HANDLER,
acpi_ec_gpe_query, ec);
} else if (unlikely(!test_bit(EC_FLAGS_GPE_MODE, &ec->flags)))
} else if (unlikely(!test_bit(EC_FLAGS_GPE_MODE, &ec->flags))) {
/* this is non-query, must be confirmation */
printk(KERN_INFO PREFIX "non-query interrupt received,"
" switching to interrupt mode\n");
set_bit(EC_FLAGS_GPE_MODE, &ec->flags);
}
return ACPI_SUCCESS(status) ?
ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED;
@ -740,6 +749,8 @@ static int acpi_ec_add(struct acpi_device *device)
acpi_ec_add_fs(device);
printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
ec->gpe, ec->command_addr, ec->data_addr);
printk(KERN_INFO PREFIX "driver started in %s mode\n",
(test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll");
return 0;
}