When probed from device tree, the i2c client driver can handle the interrupt
on its own.
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
drivers/media/i2c/tc358743.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index e1059cc..2cf97d9 100644
--- a/drivers/media/i2c/tc358743.c
+++ b/drivers/media/i2c/tc358743.c
@@ -32,6 +32,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
#include <linux/videodev2.h>
#include <linux/workqueue.h>
#include <linux/v4l2-dv-timings.h>
@@ -891,7 +892,7 @@ static void tc358743_initial_setup(struct v4l2_subdev *sd)
/* --------------- IRQ --------------- */
-static void tc358743_enable_interrupts(struct v4l2_subdev *sd)
+static void tc358743_clear_interrupt_status(struct v4l2_subdev *sd)
{
u16 i;
@@ -900,6 +901,11 @@ static void tc358743_enable_interrupts(struct v4l2_subdev
*sd)
i2c_wr8(sd, i, 0xff);
i2c_wr16(sd, INTSTATUS, 0xffff);
+}
+
+static void tc358743_enable_interrupts(struct v4l2_subdev *sd)
+{
+ tc358743_clear_interrupt_status(sd);
/* enable interrupts */
i2c_wr8(sd, SYS_INTM, ~(MASK_M_DDC | MASK_M_HDMI_DET) & 0xff);
@@ -1322,6 +1328,16 @@ static int tc358743_isr(struct v4l2_subdev *sd, u32
status, bool *handled)
return 0;
}
+static irqreturn_t tc358743_irq_handler(int irq, void *dev_id)
+{
+ struct tc358743_state *state = dev_id;
+ bool handled;
+
+ tc358743_isr(&state->sd, 0, &handled);
+
+ return handled ? IRQ_HANDLED : IRQ_NONE;
+}
+
/* --------------- VIDEO OPS --------------- */
static int tc358743_g_input_status(struct v4l2_subdev *sd, u32 *status)
@@ -1838,6 +1854,17 @@ static int tc358743_probe(struct i2c_client *client,
v4l2_info(sd, "not a TC358743 on address 0x%x\n",
client->addr << 1);
return -ENODEV;
+
+ tc358743_clear_interrupt_status(sd);
+
+ if (state->i2c_client->irq) {
+ err = devm_request_threaded_irq(&client->dev,
+ state->i2c_client->irq,
+ NULL, tc358743_irq_handler,
+ IRQF_TRIGGER_HIGH |
IRQF_ONESHOT,
+ "tc358743", state);
+ if (err)
+ return err;
}
/* control handlers */
--
2.1.4
--
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