diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2021-11-22 23:04:23 +0100 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-11-23 15:38:49 +0200 |
| commit | 6b4542664c2d1fc7a770f0a4182ef5e36672d313 (patch) | |
| tree | efad25fee244151f797c68cae1bd1f95d8fc937a /drivers | |
| parent | f7c151d86487eec720f52843133bce270b07fecc (diff) | |
| download | linux-6b4542664c2d1fc7a770f0a4182ef5e36672d313.tar.bz2 | |
pinctrl: baytrail: Set IRQCHIP_SET_TYPE_MASKED flag on the irqchip
The byt_irq_type function ends with the IRQ masked, this means that calls
to irq_set_irq_type() while the IRQ is enabled end up masking it, which
is wrong. Add the IRQCHIP_SET_TYPE_MASKED flag to fix this.
This will make the IRQ core call mask() + unmask() on the IRQ around
a set_type() call when the IRQ is enabled at the type of the call.
Note in practice irq_set_irq_type() getting called while the IRQ is enabled
almost never happens. I hit this with a buggy DSDT where a wrongly active
(_STA returns 0xf) I2C ACPI devices point to an IRQ already in use by an
_AEI handler, leading to the irq_set_irq_type() call in
acpi_dev_gpio_irq_get_by() getting called while the IRQ is enabled.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-baytrail.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index 8f23d126c6a7..4c01333e1406 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -1577,7 +1577,7 @@ static int byt_gpio_probe(struct intel_pinctrl *vg) vg->irqchip.irq_mask = byt_irq_mask, vg->irqchip.irq_unmask = byt_irq_unmask, vg->irqchip.irq_set_type = byt_irq_type, - vg->irqchip.flags = IRQCHIP_SKIP_SET_WAKE, + vg->irqchip.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_SET_TYPE_MASKED, girq = &gc->irq; girq->chip = &vg->irqchip; |