HSI: omap_ssi: convert cawake irq handler to thread
Convert cawake interrupt handler from tasklet to
threaded interrupt handler in preparation of
blocking runtime_pm calls.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Tested-by: Pavel Machek <pavel@ucw.cz>
diff --git a/drivers/hsi/controllers/omap_ssi_port.c b/drivers/hsi/controllers/omap_ssi_port.c
index 3838844..9001b06 100644
--- a/drivers/hsi/controllers/omap_ssi_port.c
+++ b/drivers/hsi/controllers/omap_ssi_port.c
@@ -966,7 +966,7 @@
return IRQ_HANDLED;
}
-static void ssi_wake_tasklet(unsigned long ssi_port)
+static irqreturn_t ssi_wake_thread(int irq __maybe_unused, void *ssi_port)
{
struct hsi_port *port = (struct hsi_port *)ssi_port;
struct hsi_controller *ssi = to_hsi_controller(port->device.parent);
@@ -1007,13 +1007,6 @@
}
spin_unlock(&omap_port->lock);
}
-}
-
-static irqreturn_t ssi_wake_isr(int irq __maybe_unused, void *ssi_port)
-{
- struct omap_ssi_port *omap_port = hsi_port_drvdata(ssi_port);
-
- tasklet_hi_schedule(&omap_port->wake_tasklet);
return IRQ_HANDLED;
}
@@ -1051,13 +1044,12 @@
}
cawake_irq = gpiod_to_irq(omap_port->wake_gpio);
-
omap_port->wake_irq = cawake_irq;
- tasklet_init(&omap_port->wake_tasklet, ssi_wake_tasklet,
- (unsigned long)port);
- err = devm_request_irq(&port->device, cawake_irq, ssi_wake_isr,
- IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
- "cawake", port);
+
+ err = devm_request_threaded_irq(&port->device, cawake_irq, NULL,
+ ssi_wake_thread,
+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "SSI cawake", port);
if (err < 0)
dev_err(&port->device, "Request Wake in IRQ %d failed %d\n",
cawake_irq, err);
@@ -1234,7 +1226,6 @@
hsi_port_unregister_clients(port);
- tasklet_kill(&omap_port->wake_tasklet);
tasklet_kill(&omap_port->pio_tasklet);
port->async = hsi_dummy_msg;