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[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>
This commit is contained in:
Philipp Zabel 2015-07-17 11:02:56 -03:00 committed by Mauro Carvalho Chehab
parent 2561482468
commit d747b806ab
1 changed files with 22 additions and 0 deletions
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22
drivers/media/i2c/tc358743.c
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@ -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);