[media] tc358743: add direct interrupt handling

When probed from device tree, the i2c client driver can handle the interrupt
on its own.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c
index 76d0aaa194932732ba3b5c5a8b3454fa32fda5f5..934f6e17e06d17be63a23e924f5fc425bfd3b4e6 100644 (file)
--- 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>
@@ -1306,6 +1307,16 @@ 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)
@@ -1876,6 +1887,17 @@ static int tc358743_probe(struct i2c_client *client,
        tc358743_set_csi_color_space(sd);
 
        tc358743_init_interrupts(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)
+                       goto err_work_queues;
+       }
+
        tc358743_enable_interrupts(sd, tx_5v_power_present(sd));
        i2c_wr16(sd, INTMASK, ~(MASK_HDMI_MSK | MASK_CSI_MSK) & 0xffff);