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platform/x86: intel_int0002_vgpio: Implement irq_set_wake

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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>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Hans de Goede 2018-09-24 16:37:19 +02:00 committed by Andy Shevchenko
parent 96402de65a
commit c3b8e884de
1 changed files with 16 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/platform/x86/intel_int0002_vgpio.c
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@ -106,6 +106,21 @@ static void int0002_irq_mask(struct irq_data *data)
outl(gpe_en_reg, GPE0A_EN_PORT); 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) static irqreturn_t int0002_irq(int irq, void *data)
{ {
struct gpio_chip *chip = data; struct gpio_chip *chip = data;
@ -128,6 +143,7 @@ static struct irq_chip int0002_irqchip = {
.irq_ack = int0002_irq_ack, .irq_ack = int0002_irq_ack,
.irq_mask = int0002_irq_mask, .irq_mask = int0002_irq_mask,
.irq_unmask = int0002_irq_unmask, .irq_unmask = int0002_irq_unmask,
.irq_set_wake = int0002_irq_set_wake,
}; };
static int int0002_probe(struct platform_device *pdev) static int int0002_probe(struct platform_device *pdev)