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authorKen Xue <Ken.Xue@amd.com>2023-12-25 13:58:35 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2023-12-29 18:47:49 +0100
commit16f70feaabe9fde0af703f2991d44a7589f0b6e3 (patch)
tree20a97f043c0283a0528b46eeea6a15b815cac027 /drivers/acpi/button.c
parent861deac3b092f37b2c5e6871732f3e11486f7082 (diff)
ACPI: button: trigger wakeup key events
Andorid can wakeup from various wakeup sources, but only several wakeup sources can wake up screen with right events(POWER, WAKEUP) from input device. Regarding pressing acpi power button, it can resume system and ACPI_BITMASK_WAKE_STATUS and ACPI_BITMASK_POWER_BUTTON_STATUS are set in pm1a_sts, but kernel does not report any key event to user space during resuming by default. So, send wakeup key event to user space during resume from power button. Signed-off-by: Ken Xue <Ken.Xue@amd.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/button.c')
-rw-r--r--drivers/acpi/button.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 1e76a64cce0a..cc61020756be 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -480,6 +480,7 @@ static int acpi_button_suspend(struct device *dev)
static int acpi_button_resume(struct device *dev)
{
+ struct input_dev *input;
struct acpi_device *device = to_acpi_device(dev);
struct acpi_button *button = acpi_driver_data(device);
@@ -489,6 +490,14 @@ static int acpi_button_resume(struct device *dev)
button->last_time = ktime_get();
acpi_lid_initialize_state(device);
}
+
+ if (button->type == ACPI_BUTTON_TYPE_POWER) {
+ input = button->input;
+ input_report_key(input, KEY_WAKEUP, 1);
+ input_sync(input);
+ input_report_key(input, KEY_WAKEUP, 0);
+ input_sync(input);
+ }
return 0;
}
#endif
@@ -579,6 +588,7 @@ static int acpi_button_add(struct acpi_device *device)
switch (button->type) {
case ACPI_BUTTON_TYPE_POWER:
input_set_capability(input, EV_KEY, KEY_POWER);
+ input_set_capability(input, EV_KEY, KEY_WAKEUP);
break;
case ACPI_BUTTON_TYPE_SLEEP: