From: Venkata Narendra Kumar Gutta <vnkgutta@xxxxxxxxxxxxxx>
commit dca4f40742e09ec5d908a7fc2862498e6cf9d911 upstream.
Wakeup capable GPIO IRQs routed via PDC are not being migrated when a CPU
is hotplugged. Add affinity callbacks to msmgpio IRQ chip to update the
affinity of wakeup capable IRQs.
Fixes: e35a6ae0eb3a ("pinctrl/msm: Setup GPIO chip in hierarchy")
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@xxxxxxxxxxxxxx>
[mkshah: updated commit text and minor code fixes]
Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx>
Tested-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1588314617-4556-1-git-send-email-mkshah@xxxxxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/qcom/pinctrl-msm.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -1010,6 +1010,29 @@ static void msm_gpio_irq_relres(struct i
module_put(gc->owner);
}
+static int msm_gpio_irq_set_affinity(struct irq_data *d,
+ const struct cpumask *dest, bool force)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
+
+ if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs))
+ return irq_chip_set_affinity_parent(d, dest, force);
+
+ return 0;
+}
+
+static int msm_gpio_irq_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)
+{
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
+
+ if (d->parent_data && test_bit(d->hwirq, pctrl->skip_wake_irqs))
+ return irq_chip_set_vcpu_affinity_parent(d, vcpu_info);
+
+ return 0;
+}
+
static void msm_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -1108,6 +1131,8 @@ static int msm_gpio_init(struct msm_pinc
pctrl->irq_chip.irq_set_wake = msm_gpio_irq_set_wake;
pctrl->irq_chip.irq_request_resources = msm_gpio_irq_reqres;
pctrl->irq_chip.irq_release_resources = msm_gpio_irq_relres;
+ pctrl->irq_chip.irq_set_affinity = msm_gpio_irq_set_affinity;
+ pctrl->irq_chip.irq_set_vcpu_affinity = msm_gpio_irq_set_vcpu_affinity;
np = of_parse_phandle(pctrl->dev->of_node, "wakeup-parent", 0);
if (np) {
