From: Alexey Starikovskiy <alexey.y.starikovskiy@xxxxxxxxx>
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@xxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
---
drivers/acpi/ec.c | 81 -----------------------------------------------------
1 files changed, 0 insertions(+), 81 deletions(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 7828ac5..5999abd 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -805,74 +805,6 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
return 0;
}
-static acpi_status __init
-acpi_fake_ecdt_callback(acpi_handle handle,
- u32 Level, void *context, void **retval)
-{
- acpi_status status;
-
- mutex_init(&ec_ecdt->lock);
- atomic_set(&ec_ecdt->event_count, 1);
- if (acpi_ec_mode == EC_INTR) {
- init_waitqueue_head(&ec_ecdt->wait);
- }
- status = acpi_walk_resources(handle, METHOD_NAME__CRS,
- acpi_ec_io_ports, ec_ecdt);
- if (ACPI_FAILURE(status))
- return status;
-
- ec_ecdt->uid = -1;
- acpi_evaluate_integer(handle, "_UID", NULL, &ec_ecdt->uid);
-
- status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec_ecdt->gpe);
- if (ACPI_FAILURE(status))
- return status;
- ec_ecdt->handle = handle;
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "GPE=0x%02lx, ports=0x%2lx, 0x%2lx",
- ec_ecdt->gpe, ec_ecdt->command_addr,
- ec_ecdt->data_addr));
-
- return AE_CTRL_TERMINATE;
-}
-
-/*
- * Some BIOS (such as some from Gateway laptops) access EC region very early
- * such as in BAT0._INI or EC._INI before an EC device is found and
- * do not provide an ECDT. According to ACPI spec, ECDT isn't mandatorily
- * required, but if EC regison is accessed early, it is required.
- * The routine tries to workaround the BIOS bug by pre-scan EC device
- * It assumes that _CRS, _HID, _GPE, _UID methods of EC don't touch any
- * op region (since _REG isn't invoked yet). The assumption is true for
- * all systems found.
- */
-static int __init acpi_ec_fake_ecdt(void)
-{
- acpi_status status;
- int ret = 0;
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Try to make an fake ECDT"));
-
- ec_ecdt = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
- if (!ec_ecdt) {
- ret = -ENOMEM;
- goto error;
- }
-
- status = acpi_get_devices(ACPI_EC_HID,
- acpi_fake_ecdt_callback, NULL, NULL);
- if (ACPI_FAILURE(status)) {
- kfree(ec_ecdt);
- ec_ecdt = NULL;
- ret = -ENODEV;
- ACPI_EXCEPTION((AE_INFO, status, "Can't make an fake ECDT"));
- goto error;
- }
- return 0;
- error:
- return ret;
-}
-
static int __init acpi_ec_get_real_ecdt(void)
{
acpi_status status;
@@ -916,18 +848,12 @@ static int __init acpi_ec_get_real_ecdt(void)
return -ENODEV;
}
-static int __initdata acpi_fake_ecdt_enabled;
int __init acpi_ec_ecdt_probe(void)
{
acpi_status status;
int ret;
ret = acpi_ec_get_real_ecdt();
- /* Try to make a fake ECDT */
- if (ret && acpi_fake_ecdt_enabled) {
- ret = acpi_ec_fake_ecdt();
- }
-
if (ret)
return 0;
@@ -1000,13 +926,6 @@ static void __exit acpi_ec_exit(void)
}
#endif /* 0 */
-static int __init acpi_fake_ecdt_setup(char *str)
-{
- acpi_fake_ecdt_enabled = 1;
- return 1;
-}
-
-__setup("acpi_fake_ecdt", acpi_fake_ecdt_setup);
static int __init acpi_ec_set_intr_mode(char *str)
{
int intr;
--
1.5.2.rc0.34.gda94
-
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
