Input: i8042 - also perform controller reset when suspending
In addition to some laptops needing i8042 reset after resuming from S2R to get their touchpads working there is another class of laptops - ones that need i8042 reset before going to S2R, otherwise they will simply reboot instead of resuming. See https://bugzilla.kernel.org/show_bug.cgi?id=15612 This change forces reset of i8042 before doing S2R. Reported-by: Stefan Koch <stefan_koch@gmx.net> Tested-by: Alexander van Loon <a.vanloon@alexandervanloon.nl> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Родитель
fb6c721b69
Коммит
1729ad1f4f
|
@ -991,7 +991,7 @@ static int i8042_controller_init(void)
|
|||
* Reset the controller and reset CRT to the original value set by BIOS.
|
||||
*/
|
||||
|
||||
static void i8042_controller_reset(void)
|
||||
static void i8042_controller_reset(bool force_reset)
|
||||
{
|
||||
i8042_flush();
|
||||
|
||||
|
@ -1016,7 +1016,7 @@ static void i8042_controller_reset(void)
|
|||
* Reset the controller if requested.
|
||||
*/
|
||||
|
||||
if (i8042_reset)
|
||||
if (i8042_reset || force_reset)
|
||||
i8042_controller_selftest();
|
||||
|
||||
/*
|
||||
|
@ -1139,9 +1139,9 @@ static int i8042_controller_resume(bool force_reset)
|
|||
* upsetting it.
|
||||
*/
|
||||
|
||||
static int i8042_pm_reset(struct device *dev)
|
||||
static int i8042_pm_suspend(struct device *dev)
|
||||
{
|
||||
i8042_controller_reset();
|
||||
i8042_controller_reset(true);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -1163,13 +1163,20 @@ static int i8042_pm_thaw(struct device *dev)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int i8042_pm_reset(struct device *dev)
|
||||
{
|
||||
i8042_controller_reset(false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int i8042_pm_restore(struct device *dev)
|
||||
{
|
||||
return i8042_controller_resume(false);
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops i8042_pm_ops = {
|
||||
.suspend = i8042_pm_reset,
|
||||
.suspend = i8042_pm_suspend,
|
||||
.resume = i8042_pm_resume,
|
||||
.thaw = i8042_pm_thaw,
|
||||
.poweroff = i8042_pm_reset,
|
||||
|
@ -1185,7 +1192,7 @@ static const struct dev_pm_ops i8042_pm_ops = {
|
|||
|
||||
static void i8042_shutdown(struct platform_device *dev)
|
||||
{
|
||||
i8042_controller_reset();
|
||||
i8042_controller_reset(false);
|
||||
}
|
||||
|
||||
static int __init i8042_create_kbd_port(void)
|
||||
|
@ -1424,7 +1431,7 @@ static int __init i8042_probe(struct platform_device *dev)
|
|||
out_fail:
|
||||
i8042_free_aux_ports(); /* in case KBD failed but AUX not */
|
||||
i8042_free_irqs();
|
||||
i8042_controller_reset();
|
||||
i8042_controller_reset(false);
|
||||
i8042_platform_device = NULL;
|
||||
|
||||
return error;
|
||||
|
@ -1434,7 +1441,7 @@ static int __devexit i8042_remove(struct platform_device *dev)
|
|||
{
|
||||
i8042_unregister_ports();
|
||||
i8042_free_irqs();
|
||||
i8042_controller_reset();
|
||||
i8042_controller_reset(false);
|
||||
i8042_platform_device = NULL;
|
||||
|
||||
return 0;
|
||||
|
|
Загрузка…
Ссылка в новой задаче