From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sat, 2 Jan 2021 15:52:27 -0600 Subject: Input: axp20x-pek - allow wakeup after shutdown While the AXP20x PMIC handles the power button itself after shutting down, it is not always possible to use the PMIC's built-in shutdown feature, such as when other wakeup sources are needed (for example, an IR remote or wake-on-LAN) that require firmware support. In that case, the PMIC remains on, but suspended, until the board is powered back on. During this "fake" off state, IRQ configuration is similar to system sleep, where enable_irq_wake() must be call on an IRQ for it to be wakeup capable. Run the suspend callback to arm the power button IRQs during the shutdown process, so the power button works in this state. Signed-off-by: Samuel Holland --- drivers/input/misc/axp20x-pek.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c index 4581606a28d6..7217dc6ed26a 100644 --- a/drivers/input/misc/axp20x-pek.c +++ b/drivers/input/misc/axp20x-pek.c @@ -393,6 +393,11 @@ static const struct dev_pm_ops axp20x_pek_pm_ops = { .resume_noirq = pm_sleep_ptr(axp20x_pek_resume_noirq), }; +static void axp20x_pek_shutdown(struct platform_device *pdev) +{ + axp20x_pek_suspend(&pdev->dev); +} + static const struct platform_device_id axp_pek_id_match[] = { { .name = "axp20x-pek", @@ -408,6 +413,7 @@ MODULE_DEVICE_TABLE(platform, axp_pek_id_match); static struct platform_driver axp20x_pek_driver = { .probe = axp20x_pek_probe, + .shutdown = axp20x_pek_shutdown, .id_table = axp_pek_id_match, .driver = { .name = "axp20x-pek", -- Armbian