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-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.c146
-rw-r--r--drivers/net/dsa/mv88e6xxx/chip.h3
2 files changed, 106 insertions, 43 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index e1b5c5c66fce..24486f96dd39 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -253,9 +253,8 @@ static void mv88e6xxx_g1_irq_unmask(struct irq_data *d)
chip->g1_irq.masked &= ~(1 << n);
}
-static irqreturn_t mv88e6xxx_g1_irq_thread_fn(int irq, void *dev_id)
+static irqreturn_t mv88e6xxx_g1_irq_thread_work(struct mv88e6xxx_chip *chip)
{
- struct mv88e6xxx_chip *chip = dev_id;
unsigned int nhandled = 0;
unsigned int sub_irq;
unsigned int n;
@@ -280,6 +279,13 @@ out:
return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
}
+static irqreturn_t mv88e6xxx_g1_irq_thread_fn(int irq, void *dev_id)
+{
+ struct mv88e6xxx_chip *chip = dev_id;
+
+ return mv88e6xxx_g1_irq_thread_work(chip);
+}
+
static void mv88e6xxx_g1_irq_bus_lock(struct irq_data *d)
{
struct mv88e6xxx_chip *chip = irq_data_get_irq_chip_data(d);
@@ -335,7 +341,7 @@ static const struct irq_domain_ops mv88e6xxx_g1_irq_domain_ops = {
.xlate = irq_domain_xlate_twocell,
};
-static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
+static void mv88e6xxx_g1_irq_free_common(struct mv88e6xxx_chip *chip)
{
int irq, virq;
u16 mask;
@@ -344,8 +350,6 @@ static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
mask &= ~GENMASK(chip->g1_irq.nirqs, 0);
mv88e6xxx_g1_write(chip, MV88E6XXX_G1_CTL1, mask);
- free_irq(chip->irq, chip);
-
for (irq = 0; irq < chip->g1_irq.nirqs; irq++) {
virq = irq_find_mapping(chip->g1_irq.domain, irq);
irq_dispose_mapping(virq);
@@ -354,7 +358,14 @@ static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
irq_domain_remove(chip->g1_irq.domain);
}
-static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip)
+static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
+{
+ mv88e6xxx_g1_irq_free(chip);
+
+ free_irq(chip->irq, chip);
+}
+
+static int mv88e6xxx_g1_irq_setup_common(struct mv88e6xxx_chip *chip)
{
int err, irq, virq;
u16 reg, mask;
@@ -387,13 +398,6 @@ static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip)
if (err)
goto out_disable;
- err = request_threaded_irq(chip->irq, NULL,
- mv88e6xxx_g1_irq_thread_fn,
- IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
- dev_name(chip->dev), chip);
- if (err)
- goto out_disable;
-
return 0;
out_disable:
@@ -411,6 +415,62 @@ out_mapping:
return err;
}
+static int mv88e6xxx_g1_irq_setup(struct mv88e6xxx_chip *chip)
+{
+ int err;
+
+ err = mv88e6xxx_g1_irq_setup_common(chip);
+ if (err)
+ return err;
+
+ err = request_threaded_irq(chip->irq, NULL,
+ mv88e6xxx_g1_irq_thread_fn,
+ IRQF_ONESHOT | IRQF_TRIGGER_FALLING,
+ dev_name(chip->dev), chip);
+ if (err)
+ mv88e6xxx_g1_irq_free_common(chip);
+
+ return err;
+}
+
+static void mv88e6xxx_irq_poll(struct kthread_work *work)
+{
+ struct mv88e6xxx_chip *chip = container_of(work,
+ struct mv88e6xxx_chip,
+ irq_poll_work.work);
+ mv88e6xxx_g1_irq_thread_work(chip);
+
+ kthread_queue_delayed_work(chip->kworker, &chip->irq_poll_work,
+ msecs_to_jiffies(100));
+}
+
+static int mv88e6xxx_irq_poll_setup(struct mv88e6xxx_chip *chip)
+{
+ int err;
+
+ err = mv88e6xxx_g1_irq_setup_common(chip);
+ if (err)
+ return err;
+
+ kthread_init_delayed_work(&chip->irq_poll_work,
+ mv88e6xxx_irq_poll);
+
+ chip->kworker = kthread_create_worker(0, dev_name(chip->dev));
+ if (IS_ERR(chip->kworker))
+ return PTR_ERR(chip->kworker);
+
+ kthread_queue_delayed_work(chip->kworker, &chip->irq_poll_work,
+ msecs_to_jiffies(100));
+
+ return 0;
+}
+
+static void mv88e6xxx_irq_poll_free(struct mv88e6xxx_chip *chip)
+{
+ kthread_cancel_delayed_work_sync(&chip->irq_poll_work);
+ kthread_destroy_worker(chip->kworker);
+}
+
int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, u16 mask)
{
int i;
@@ -4034,33 +4094,34 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
goto out;
}
- if (chip->irq > 0) {
- /* Has to be performed before the MDIO bus is created,
- * because the PHYs will link there interrupts to these
- * interrupt controllers
- */
- mutex_lock(&chip->reg_lock);
+ /* Has to be performed before the MDIO bus is created, because
+ * the PHYs will link there interrupts to these interrupt
+ * controllers
+ */
+ mutex_lock(&chip->reg_lock);
+ if (chip->irq > 0)
err = mv88e6xxx_g1_irq_setup(chip);
- mutex_unlock(&chip->reg_lock);
-
- if (err)
- goto out;
-
- if (chip->info->g2_irqs > 0) {
- err = mv88e6xxx_g2_irq_setup(chip);
- if (err)
- goto out_g1_irq;
- }
+ else
+ err = mv88e6xxx_irq_poll_setup(chip);
+ mutex_unlock(&chip->reg_lock);
- err = mv88e6xxx_g1_atu_prob_irq_setup(chip);
- if (err)
- goto out_g2_irq;
+ if (err)
+ goto out;
- err = mv88e6xxx_g1_vtu_prob_irq_setup(chip);
+ if (chip->info->g2_irqs > 0) {
+ err = mv88e6xxx_g2_irq_setup(chip);
if (err)
- goto out_g1_atu_prob_irq;
+ goto out_g1_irq;
}
+ err = mv88e6xxx_g1_atu_prob_irq_setup(chip);
+ if (err)
+ goto out_g2_irq;
+
+ err = mv88e6xxx_g1_vtu_prob_irq_setup(chip);
+ if (err)
+ goto out_g1_atu_prob_irq;
+
err = mv88e6xxx_mdios_register(chip, np);
if (err)
goto out_g1_vtu_prob_irq;
@@ -4074,20 +4135,19 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev)
out_mdio:
mv88e6xxx_mdios_unregister(chip);
out_g1_vtu_prob_irq:
- if (chip->irq > 0)
- mv88e6xxx_g1_vtu_prob_irq_free(chip);
+ mv88e6xxx_g1_vtu_prob_irq_free(chip);
out_g1_atu_prob_irq:
- if (chip->irq > 0)
- mv88e6xxx_g1_atu_prob_irq_free(chip);
+ mv88e6xxx_g1_atu_prob_irq_free(chip);
out_g2_irq:
- if (chip->info->g2_irqs > 0 && chip->irq > 0)
+ if (chip->info->g2_irqs > 0)
mv88e6xxx_g2_irq_free(chip);
out_g1_irq:
- if (chip->irq > 0) {
- mutex_lock(&chip->reg_lock);
+ mutex_lock(&chip->reg_lock);
+ if (chip->irq > 0)
mv88e6xxx_g1_irq_free(chip);
- mutex_unlock(&chip->reg_lock);
- }
+ else
+ mv88e6xxx_irq_poll_free(chip);
+ mutex_unlock(&chip->reg_lock);
out:
return err;
}
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index 97d7915f32c7..d6a1391dc268 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -15,6 +15,7 @@
#include <linux/if_vlan.h>
#include <linux/irq.h>
#include <linux/gpio/consumer.h>
+#include <linux/kthread.h>
#include <linux/phy.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/timecounter.h>
@@ -245,6 +246,8 @@ struct mv88e6xxx_chip {
int watchdog_irq;
int atu_prob_irq;
int vtu_prob_irq;
+ struct kthread_worker *kworker;
+ struct kthread_delayed_work irq_poll_work;
/* GPIO resources */
u8 gpio_data[2];
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 14:30:23 +0000