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asus-laptop: stop using read_status for lcd

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(anyway lcd code is scheduled for removal)

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
This commit is contained in:
Corentin Chary 2010-01-13 22:10:39 +01:00
parent 6358bf2c4c
commit 3e68ae7c2a
1 changed files with 20 additions and 17 deletions
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37
drivers/platform/x86/asus-laptop.c
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@ -241,6 +241,7 @@ struct asus_laptop {
int wireless_status;
bool have_rsts;
int lcd_state;
acpi_handle handle; /* the handle of the hotk device */
char status; /* status of the hotk, for LEDs, ... */
@ -538,30 +539,33 @@ error:
/*
* Backlight device
*/
static int get_lcd_state(struct asus_laptop *asus)
static int asus_lcd_status(struct asus_laptop *asus)
{
return read_status(asus, LCD_ON);
return asus->lcd_state;
}
static int set_lcd_state(struct asus_laptop *asus, int value)
static int asus_lcd_set(struct asus_laptop *asus, int value)
{
int lcd = 0;
acpi_status status = 0;
lcd = value ? 1 : 0;
lcd = !!value;
if (lcd == get_lcd_state(asus))
if (lcd == asus_lcd_status(asus))
return 0;
if (lcd_switch_handle) {
status = acpi_evaluate_object(lcd_switch_handle,
NULL, NULL, NULL);
if (!lcd_switch_handle)
return -ENODEV;
if (ACPI_FAILURE(status))
pr_warning("Error switching LCD\n");
status = acpi_evaluate_object(lcd_switch_handle,
NULL, NULL, NULL);
if (ACPI_FAILURE(status)) {
pr_warning("Error switching LCD\n");
return -ENODEV;
}
write_status(asus, NULL, lcd, LCD_ON);
asus->lcd_state = lcd;
return 0;
}
@ -569,6 +573,8 @@ static void lcd_blank(struct asus_laptop *asus, int blank)
{
struct backlight_device *bd = asus->backlight_device;
asus->lcd_state = (blank == FB_BLANK_UNBLANK);
if (bd) {
bd->props.power = blank;
backlight_update_status(bd);
@ -607,7 +613,7 @@ static int update_bl_status(struct backlight_device *bd)
return rv;
value = (bd->props.power == FB_BLANK_UNBLANK) ? 1 : 0;
return set_lcd_state(asus, value);
return asus_lcd_set(asus, value);
}
static struct backlight_ops asusbl_ops = {
@ -1144,13 +1150,10 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event)
* We need to tell the backlight device when the backlight power is
* switched
*/
if (event == ATKD_LCD_ON) {
write_status(asus, NULL, 1, LCD_ON);
if (event == ATKD_LCD_ON)
lcd_blank(asus, FB_BLANK_UNBLANK);
} else if (event == ATKD_LCD_OFF) {
write_status(asus, NULL, 0, LCD_ON);
else if (event == ATKD_LCD_OFF)
lcd_blank(asus, FB_BLANK_POWERDOWN);
}
/* TODO Find a better way to handle events count. */
count = asus->event_count[event % 128]++;