ACPI: EC: Cleanup of EC initialization

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 13 insertions, 19 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 187981a3e881..2a172299b24c 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1,6 +1,8 @@
 /*
- *  acpi_ec.c - ACPI Embedded Controller Driver ($Revision: 38 $)
+ *  ec.c - ACPI Embedded Controller Driver (v2.0)
  *
+ *  Copyright (C) 2006, 2007 Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
+ *  Copyright (C) 2006 Denis Sadykov <denis.m.sadykov@intel.com>
  *  Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
  *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
  *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
@@ -94,7 +96,6 @@ static struct acpi_driver acpi_ec_driver = {
 /* External interfaces use first EC only, so remember */
 static struct acpi_ec {
         acpi_handle handle;
-        unsigned long uid;
         unsigned long gpe;
         unsigned long command_addr;
         unsigned long data_addr;
@@ -525,13 +526,11 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset)
         if (!ec)
                 goto end;
 
-        seq_printf(seq, "gpe:                 0x%02x\n", (u32) ec->gpe);
-        seq_printf(seq, "ports:                   0x%02x, 0x%02x\n",
-                   (u32) ec->command_addr, (u32) ec->data_addr);
-        seq_printf(seq, "use global lock:         %s\n",
+        seq_printf(seq, "gpe:\t\t\t0x%02x\n", (u32) ec->gpe);
+        seq_printf(seq, "ports:\t\t\t0x%02x, 0x%02x\n",
+                   (unsigned)ec->command_addr, (unsigned)ec->data_addr);
+        seq_printf(seq, "use global lock:\t%s\n",
                    ec->global_lock ? "yes" : "no");
-        acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
-
       end:
         return 0;
 }
@@ -655,15 +654,13 @@ static int acpi_ec_add(struct acpi_device *device)
 
 static int acpi_ec_remove(struct acpi_device *device, int type)
 {
-        struct acpi_ec *ec = NULL;
+        struct acpi_ec *ec;
 
         if (!device)
                 return -EINVAL;
 
         ec = acpi_driver_data(device);
-
         acpi_ec_remove_fs(device);
-
         acpi_driver_data(device) = NULL;
         if (ec == first_ec)
                 first_ec = NULL;
@@ -671,7 +668,6 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
         /* Don't touch boot EC */
         if (boot_ec != ec)
                 kfree(ec);
-
         return 0;
 }
 
@@ -680,22 +676,20 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context)
 {
         struct acpi_ec *ec = context;
 
-        if (resource->type != ACPI_RESOURCE_TYPE_IO) {
+        if (resource->type != ACPI_RESOURCE_TYPE_IO)
                 return AE_OK;
-        }
 
         /*
          * The first address region returned is the data port, and
          * the second address region returned is the status/command
          * port.
          */
-        if (ec->data_addr == 0) {
+        if (ec->data_addr == 0)
                 ec->data_addr = resource->data.io.minimum;
-        } else if (ec->command_addr == 0) {
+        else if (ec->command_addr == 0)
                 ec->command_addr = resource->data.io.minimum;
-        } else {
+        else
                 return AE_CTRL_TERMINATE;
-        }
 
         return AE_OK;
 }
@@ -708,6 +702,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
                                           &acpi_ec_gpe_handler, ec);
         if (ACPI_FAILURE(status))
                 return -ENODEV;
+
         acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME);
         acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
 
@@ -825,7 +820,6 @@ int __init acpi_ec_ecdt_probe(void)
         boot_ec->command_addr = ecdt_ptr->control.address;
         boot_ec->data_addr = ecdt_ptr->data.address;
         boot_ec->gpe = ecdt_ptr->gpe;
-        boot_ec->uid = ecdt_ptr->uid;
         boot_ec->handle = ACPI_ROOT_OBJECT;
 
         ret = ec_install_handlers(boot_ec);