From: Venkata Narendra Kumar Gutta vnkgutta@codeaurora.org
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@codeaurora.org [mkshah: updated commit text and minor code fixes] Signed-off-by: Maulik Shah mkshah@codeaurora.org Tested-by: Douglas Anderson dianders@chromium.org Reviewed-by: Stephen Boyd swboyd@chromium.org Link: https://lore.kernel.org/r/1588314617-4556-1-git-send-email-mkshah@codeaurora... Signed-off-by: Linus Walleij linus.walleij@linaro.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/pinctrl/qcom/pinctrl-msm.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index 9f1c9951949e..14a8f8fa0ea3 100644 --- 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 irq_data *d) 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_pinctrl *pctrl) 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) {