Quoting Lina Iyer (2019-02-22 14:18:47)
> diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
> index ee8119879c4c..83053b45982e 100644
> --- a/drivers/pinctrl/qcom/pinctrl-msm.c
> +++ b/drivers/pinctrl/qcom/pinctrl-msm.c
> @@ -890,6 +918,9 @@ static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
>
> raw_spin_unlock_irqrestore(&pctrl->lock, flags);
Can we remove the above hunk of code in this function? From what I can
tell we're trying to set wake on the GIC SPI line and that won't ever
work because it doesn't support wakeup support. Furthermore, I get a
lockdep splat when I try to set wake on a GPIO irq with this patchset
applied. It's probably a false positive though because it's warning
about an AA deadlock with the irq descriptor lock, which is aliased
between the two controllers.
>
> + if (d->parent_data)
> + irq_chip_set_wake_parent(d, on);
> +
> return 0;
> }
>
Here's a patch on top. If you need my signed-off-by please feel free to
add it:
Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
-----8<-------
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index cdbc06ec5e96..4e81dad80a4d 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -852,20 +852,10 @@ static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int type)
static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
{
- struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
- unsigned long flags;
-
- raw_spin_lock_irqsave(&pctrl->lock, flags);
-
- irq_set_irq_wake(pctrl->irq, on);
-
- raw_spin_unlock_irqrestore(&pctrl->lock, flags);
-
if (d->parent_data)
- irq_chip_set_wake_parent(d, on);
+ return irq_chip_set_wake_parent(d, on);
- return 0;
+ return -ENOSYS;
}
static int msm_gpio_irq_reqres(struct irq_data *d)
