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pinctrl: qcom: Add affinity callbacks to msmgpio IRQ chip

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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: e35a6ae0eb ("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.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Venkata Narendra Kumar Gutta 2020-05-01 12:00:17 +05:30 committed by Linus Walleij
parent 9cd347294b
commit dca4f40742
1 changed files with 25 additions and 0 deletions
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25
drivers/pinctrl/qcom/pinctrl-msm.c
View file

@ -1034,6 +1034,29 @@ 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);
@ -1132,6 +1155,8 @@ 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) {