@@ -42,7 +42,6 @@
* @chip: gpiochip handle.
* @desc: pin controller descriptor
* @restart_nb: restart notifier block.
- * @irq_chip: irq chip information
* @irq: parent irq for the TLMM irq_chip.
* @intr_target_use_scm: route irq to application cpu using scm calls
* @lock: Spinlock to protect register resources as well
@@ -63,7 +62,6 @@ struct msm_pinctrl {
struct pinctrl_desc desc;
struct notifier_block restart_nb;
- struct irq_chip irq_chip;
int irq;
bool intr_target_use_scm;
@@ -859,6 +857,8 @@ static void msm_gpio_irq_enable(struct irq_data *d)
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct msm_pinctrl *pctrl = gpiochip_get_data(gc);
+ gpiochip_enable_irq(gc, d->hwirq);
+
if (d->parent_data)
irq_chip_enable_parent(d);
@@ -876,6 +876,8 @@ static void msm_gpio_irq_disable(struct irq_data *d)
if (!test_bit(d->hwirq, pctrl->skip_wake_irqs))
msm_gpio_irq_mask(d);
+
+ gpiochip_disable_irq(gc, d->hwirq);
}
/**
@@ -949,6 +951,14 @@ static void msm_gpio_irq_ack(struct irq_data *d)
raw_spin_unlock_irqrestore(&pctrl->lock, flags);
}
+static void msm_gpio_irq_eoi(struct irq_data *d)
+{
+ d = d->parent_data;
+
+ if (d)
+ d->chip->irq_eoi(d);
+}
+
static bool msm_gpio_needs_dual_edge_parent_workaround(struct irq_data *d,
unsigned int type)
{
@@ -1246,6 +1256,26 @@ static bool msm_gpio_needs_valid_mask(struct msm_pinctrl *pctrl)
return device_property_count_u16(pctrl->dev, "gpios") > 0;
}
+static const struct irq_chip msm_gpio_irq_chip = {
+ .name = "msmgpio",
+ .irq_enable = msm_gpio_irq_enable,
+ .irq_disable = msm_gpio_irq_disable,
+ .irq_mask = msm_gpio_irq_mask,
+ .irq_unmask = msm_gpio_irq_unmask,
+ .irq_ack = msm_gpio_irq_ack,
+ .irq_eoi = msm_gpio_irq_eoi,
+ .irq_set_type = msm_gpio_irq_set_type,
+ .irq_set_wake = msm_gpio_irq_set_wake,
+ .irq_request_resources = msm_gpio_irq_reqres,
+ .irq_release_resources = msm_gpio_irq_relres,
+ .irq_set_affinity = msm_gpio_irq_set_affinity,
+ .irq_set_vcpu_affinity = msm_gpio_irq_set_vcpu_affinity,
+ .flags = (IRQCHIP_MASK_ON_SUSPEND |
+ IRQCHIP_SET_TYPE_MASKED |
+ IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND |
+ IRQCHIP_IMMUTABLE),
+};
+
static int msm_gpio_init(struct msm_pinctrl *pctrl)
{
struct gpio_chip *chip;
@@ -1267,22 +1297,6 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
if (msm_gpio_needs_valid_mask(pctrl))
chip->init_valid_mask = msm_gpio_init_valid_mask;
- pctrl->irq_chip.name = "msmgpio";
- pctrl->irq_chip.irq_enable = msm_gpio_irq_enable;
- pctrl->irq_chip.irq_disable = msm_gpio_irq_disable;
- pctrl->irq_chip.irq_mask = msm_gpio_irq_mask;
- pctrl->irq_chip.irq_unmask = msm_gpio_irq_unmask;
- pctrl->irq_chip.irq_ack = msm_gpio_irq_ack;
- pctrl->irq_chip.irq_set_type = msm_gpio_irq_set_type;
- 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;
- pctrl->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND |
- IRQCHIP_SET_TYPE_MASKED |
- IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND;
-
np = of_parse_phandle(pctrl->dev->of_node, "wakeup-parent", 0);
if (np) {
chip->irq.parent_domain = irq_find_matching_host(np,
@@ -1291,7 +1305,6 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
if (!chip->irq.parent_domain)
return -EPROBE_DEFER;
chip->irq.child_to_parent_hwirq = msm_gpio_wakeirq;
- pctrl->irq_chip.irq_eoi = irq_chip_eoi_parent;
/*
* Let's skip handling the GPIOs, if the parent irqchip
* is handling the direct connect IRQ of the GPIO.
@@ -1304,7 +1317,7 @@ static int msm_gpio_init(struct msm_pinctrl *pctrl)
}
girq = &chip->irq;
- girq->chip = &pctrl->irq_chip;
+ girq->chip = (struct irq_chip *)&msm_gpio_irq_chip;
girq->parent_handler = msm_gpio_irq_handler;
girq->fwnode = pctrl->dev->fwnode;
girq->num_parents = 1;
Prevent gpiolib from messing with the irqchip by advertising the irq_chip structure as immutable, making it const, and adding the various calls that gpiolib relies upon. Signed-off-by: Marc Zyngier <maz@kernel.org> --- drivers/pinctrl/qcom/pinctrl-msm.c | 53 +++++++++++++++++++----------- 1 file changed, 33 insertions(+), 20 deletions(-)