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path: root/drivers/pinctrl/pinctrl-amd.c
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Diffstat (limited to 'drivers/pinctrl/pinctrl-amd.c')
-rw-r--r--drivers/pinctrl/pinctrl-amd.c56
1 files changed, 43 insertions, 13 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 66b9c5826..a44902b14 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -774,6 +774,34 @@ static const struct pinconf_ops amd_pinconf_ops = {
.pin_config_group_set = amd_pinconf_group_set,
};
+static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
+{
+ struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+ unsigned long flags;
+ u32 pin_reg, mask;
+ int i;
+
+ mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
+ BIT(INTERRUPT_MASK_OFF) | BIT(INTERRUPT_ENABLE_OFF) |
+ BIT(WAKE_CNTRL_OFF_S4);
+
+ for (i = 0; i < desc->npins; i++) {
+ int pin = desc->pins[i].number;
+ const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
+
+ if (!pd)
+ continue;
+
+ raw_spin_lock_irqsave(&gpio_dev->lock, flags);
+
+ pin_reg = readl(gpio_dev->base + i * 4);
+ pin_reg &= ~mask;
+ writel(pin_reg, gpio_dev->base + i * 4);
+
+ raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
+ }
+}
+
#ifdef CONFIG_PM_SLEEP
static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin)
{
@@ -858,6 +886,7 @@ static int amd_gpio_probe(struct platform_device *pdev)
int irq_base;
struct resource *res;
struct amd_gpio *gpio_dev;
+ struct gpio_irq_chip *girq;
gpio_dev = devm_kzalloc(&pdev->dev,
sizeof(struct amd_gpio), GFP_KERNEL);
@@ -921,6 +950,18 @@ static int amd_gpio_probe(struct platform_device *pdev)
return PTR_ERR(gpio_dev->pctrl);
}
+ /* Disable and mask interrupts */
+ amd_gpio_irq_init(gpio_dev);
+
+ girq = &gpio_dev->gc.irq;
+ girq->chip = &amd_gpio_irqchip;
+ /* This will let us handle the parent IRQ in the driver */
+ girq->parent_handler = NULL;
+ girq->num_parents = 0;
+ girq->parents = NULL;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_simple_irq;
+
ret = gpiochip_add_data(&gpio_dev->gc, gpio_dev);
if (ret)
return ret;
@@ -932,19 +973,8 @@ static int amd_gpio_probe(struct platform_device *pdev)
goto out2;
}
- ret = gpiochip_irqchip_add(&gpio_dev->gc,
- &amd_gpio_irqchip,
- 0,
- handle_simple_irq,
- IRQ_TYPE_NONE);
- if (ret) {
- dev_err(&pdev->dev, "could not add irqchip\n");
- ret = -ENODEV;
- goto out2;
- }
-
- ret = devm_request_irq(&pdev->dev, irq_base, amd_gpio_irq_handler, 0,
- KBUILD_MODNAME, gpio_dev);
+ ret = devm_request_irq(&pdev->dev, irq_base, amd_gpio_irq_handler,
+ IRQF_SHARED, KBUILD_MODNAME, gpio_dev);
if (ret)
goto out2;