Commit d747b806 authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
Browse files

[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: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 25614824

drivers/media/i2c/tc358743.c

+22 −0
Original line number Diff line number Diff line
@@ -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);