mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-26 19:00:25 +00:00
Code Issues Releases Wiki Activity

pinctrl: amd: Handle wake-up interrupt

Browse source 
Enable/disable power management wakeup mode, which is disabled by
default. enable_irq_wake enables wakes the system from sleep.

Hence added enable/disable irq_wake to handle wake-up interrupt.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Tested-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20210831120613.1514899-3-Basavaraj.Natikar@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Basavaraj Natikar 2021-08-31 17:36:13 +05:30 committed by Linus Walleij
parent 7e6f8d6f4a
commit acd47b9f28
1 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/pinctrl/pinctrl-amd.c
View file

@ -445,6 +445,7 @@ static int amd_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct amd_gpio *gpio_dev = gpiochip_get_data(gc);
u32 wake_mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3);
int err;
raw_spin_lock_irqsave(&gpio_dev->lock, flags);
pin_reg = readl(gpio_dev->base + (d->hwirq)*4);
@ -457,6 +458,15 @@ static int amd_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
writel(pin_reg, gpio_dev->base + (d->hwirq)*4);
raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
if (on)
err = enable_irq_wake(gpio_dev->irq);
else
err = disable_irq_wake(gpio_dev->irq);
if (err)
dev_err(&gpio_dev->pdev->dev, "failed to %s wake-up interrupt\n",
on ? "enable" : "disable");
return 0;
}