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Subject[PATCH] platform/x86: intel_int0002_vgpio: Implement irq_set_wake
Date
We were relying on the interrupt being shared with the ACPI SCI and the
ACPI core calling irq_set_wake. But that does not always happen on
Bay Trail devices, so we should do it ourselves.

This fixes wake from USB not working on various Bay Trail devices.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/intel_int0002_vgpio.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/platform/x86/intel_int0002_vgpio.c b/drivers/platform/x86/intel_int0002_vgpio.c
index 987a3b03f225..33c3489f5bc1 100644
--- a/drivers/platform/x86/intel_int0002_vgpio.c
+++ b/drivers/platform/x86/intel_int0002_vgpio.c
@@ -106,6 +106,21 @@ static void int0002_irq_mask(struct irq_data *data)
outl(gpe_en_reg, GPE0A_EN_PORT);
}

+static int int0002_irq_set_wake(struct irq_data *data, unsigned int on)
+{
+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
+ struct platform_device *pdev = to_platform_device(chip->parent);
+ int irq = platform_get_irq(pdev, 0);
+
+ /* Propagate to parent irq */
+ if (on)
+ enable_irq_wake(irq);
+ else
+ disable_irq_wake(irq);
+
+ return 0;
+}
+
static irqreturn_t int0002_irq(int irq, void *data)
{
struct gpio_chip *chip = data;
@@ -128,6 +143,7 @@ static struct irq_chip int0002_irqchip = {
.irq_ack = int0002_irq_ack,
.irq_mask = int0002_irq_mask,
.irq_unmask = int0002_irq_unmask,
+ .irq_set_wake = int0002_irq_set_wake,
};

static int int0002_probe(struct platform_device *pdev)
--
2.19.0.rc1
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