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ACPI: button: remove button->device pointer 

We no longer need a pointer from struct acpi_button back to the
struct acpi_device.  Everywhere we used that pointer, we either
already have, or can easily get, the acpi_device pointer without
using the copy from acpi_button.  So this patch removes the
structure element.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2009-04-08 15:39:59 +00:00 committed by Len Brown
parent bf04a77227
commit 106c19e7b9
1 changed files with 13 additions and 18 deletions
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31
drivers/acpi/button.c
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@ -95,7 +95,6 @@ static struct acpi_driver acpi_button_driver = {
};
struct acpi_button {
struct acpi_device *device; /* Fixed button kludge */
unsigned int type;
struct input_dev *input;
char phys[32]; /* for input device */
@ -126,10 +125,10 @@ static struct proc_dir_entry *acpi_button_dir;
static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_button *button = seq->private;
struct acpi_device *device = seq->private;
seq_printf(seq, "type: %s\n",
acpi_device_name(button->device));
acpi_device_name(device));
return 0;
}
@ -140,11 +139,11 @@ static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
{
struct acpi_button *button = seq->private;
struct acpi_device *device = seq->private;
acpi_status status;
unsigned long long state;
status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state);
status = acpi_evaluate_integer(device->handle, "_LID", NULL, &state);
seq_printf(seq, "state: %s\n",
ACPI_FAILURE(status) ? "unsupported" :
(state ? "open" : "closed"));
@ -198,8 +197,7 @@ static int acpi_button_add_fs(struct acpi_device *device)
/* 'info' [R] */
entry = proc_create_data(ACPI_BUTTON_FILE_INFO,
S_IRUGO, acpi_device_dir(device),
&acpi_button_info_fops,
acpi_driver_data(device));
&acpi_button_info_fops, device);
if (!entry)
return -ENODEV;
@ -207,8 +205,7 @@ static int acpi_button_add_fs(struct acpi_device *device)
if (button->type == ACPI_BUTTON_TYPE_LID) {
entry = proc_create_data(ACPI_BUTTON_FILE_STATE,
S_IRUGO, acpi_device_dir(device),
&acpi_button_state_fops,
acpi_driver_data(device));
&acpi_button_state_fops, device);
if (!entry)
return -ENODEV;
}
@ -238,13 +235,13 @@ static int acpi_button_remove_fs(struct acpi_device *device)
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
static int acpi_lid_send_state(struct acpi_button *button)
static int acpi_lid_send_state(struct acpi_device *device)
{
struct acpi_button *button = acpi_driver_data(device);
unsigned long long state;
acpi_status status;
status = acpi_evaluate_integer(button->device->handle, "_LID", NULL,
&state);
status = acpi_evaluate_integer(device->handle, "_LID", NULL, &state);
if (ACPI_FAILURE(status))
return -ENODEV;
@ -266,7 +263,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
case ACPI_BUTTON_NOTIFY_STATUS:
input = button->input;
if (button->type == ACPI_BUTTON_TYPE_LID) {
acpi_lid_send_state(button);
acpi_lid_send_state(device);
} else {
int keycode = test_bit(KEY_SLEEP, input->keybit) ?
KEY_SLEEP : KEY_POWER;
@ -277,8 +274,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
input_sync(input);
}
acpi_bus_generate_proc_event(button->device, event,
++button->pushed);
acpi_bus_generate_proc_event(device, event, ++button->pushed);
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@ -292,7 +288,7 @@ static int acpi_button_resume(struct acpi_device *device)
struct acpi_button *button = acpi_driver_data(device);
if (button->type == ACPI_BUTTON_TYPE_LID)
return acpi_lid_send_state(button);
return acpi_lid_send_state(device);
return 0;
}
@ -307,7 +303,6 @@ static int acpi_button_add(struct acpi_device *device)
if (!button)
return -ENOMEM;
button->device = device;
device->driver_data = button;
button->input = input = input_allocate_device();
@ -390,7 +385,7 @@ static int acpi_button_add(struct acpi_device *device)
if (error)
goto err_remove_fs;
if (button->type == ACPI_BUTTON_TYPE_LID)
acpi_lid_send_state(button);
acpi_lid_send_state(device);
if (device->wakeup.flags.valid) {
/* Button's GPE is run-wake GPE */