From 16f70feaabe9fde0af703f2991d44a7589f0b6e3 Mon Sep 17 00:00:00 2001 From: Ken Xue Date: Mon, 25 Dec 2023 13:58:35 +0800 Subject: [PATCH] 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 Reviewed-by: Andy Shevchenko [ rjw: Subject edits ] Signed-off-by: Rafael J. Wysocki --- drivers/acpi/button.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 1e76a64cce0a9..cc61020756beb 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: -- 2.30.2