From 697103ad736a913df3409d55def2801e85d7d971 Mon Sep 17 00:00:00 2001
From: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Date: Tue, 31 Aug 2021 17:36:13 +0530
Subject: [PATCH] pinctrl: amd: Handle wake-up interrupt
Git-commit: acd47b9f28e55b505aedb842131b40904e151d7c
Patch-mainline: v5.15-rc4
References: stable-5.14.19
commit acd47b9f28e55b505aedb842131b40904e151d7c upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pinctrl/pinctrl-amd.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 613f3175acda..80b67cd7c008 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -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;
}
--
2.26.2