system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-22 20:37:18 +00:00
Code Issues Packages Projects Releases Wiki Activity

[media] radio-si470x: convert to use request_threaded_irq()

Browse source 
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Joonyoung Shim 2011-03-11 03:54:48 -03:00 committed by Mauro Carvalho Chehab
parent 949cf31cb0
commit 474fdc0822
2 changed files with 9 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
drivers/media/radio/si470x/radio-si470x-i2c.c
View file

@ -262,12 +262,11 @@ int si470x_vidioc_querycap(struct file *file, void *priv,
**************************************************************************/
/*
* si470x_i2c_interrupt_work - rds processing function
* si470x_i2c_interrupt - interrupt handler
*/
static void si470x_i2c_interrupt_work(struct work_struct *work)
static irqreturn_t si470x_i2c_interrupt(int irq, void *dev_id)
{
struct si470x_device *radio = container_of(work,
struct si470x_device, radio_work);
struct si470x_device *radio = dev_id;
unsigned char regnr;
unsigned char blocknum;
unsigned short bler; /* rds block errors */
@ -278,26 +277,26 @@ static void si470x_i2c_interrupt_work(struct work_struct *work)
/* check Seek/Tune Complete */
retval = si470x_get_register(radio, STATUSRSSI);
if (retval < 0)
return;
goto end;
if (radio->registers[STATUSRSSI] & STATUSRSSI_STC)
complete(&radio->completion);
/* safety checks */
if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
return;
goto end;
/* Update RDS registers */
for (regnr = 1; regnr < RDS_REGISTER_NUM; regnr++) {
retval = si470x_get_register(radio, STATUSRSSI + regnr);
if (retval < 0)
return;
goto end;
}
/* get rds blocks */
if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0)
/* No RDS group ready, better luck next time */
return;
goto end;
for (blocknum = 0; blocknum < 4; blocknum++) {
switch (blocknum) {
@ -351,19 +350,8 @@ static void si470x_i2c_interrupt_work(struct work_struct *work)
if (radio->wr_index != radio->rd_index)
wake_up_interruptible(&radio->read_queue);
}
/*
* si470x_i2c_interrupt - interrupt handler
*/
static irqreturn_t si470x_i2c_interrupt(int irq, void *dev_id)
{
struct si470x_device *radio = dev_id;
if (!work_pending(&radio->radio_work))
schedule_work(&radio->radio_work);
end:
return IRQ_HANDLED;
}
@ -385,7 +373,6 @@ static int __devinit si470x_i2c_probe(struct i2c_client *client,
goto err_initial;
}
INIT_WORK(&radio->radio_work, si470x_i2c_interrupt_work);
radio->users = 0;
radio->client = client;
mutex_init(&radio->lock);
@ -454,7 +441,7 @@ static int __devinit si470x_i2c_probe(struct i2c_client *client,
radio->stci_enabled = true;
init_completion(&radio->completion);
retval = request_irq(client->irq, si470x_i2c_interrupt,
retval = request_threaded_irq(client->irq, NULL, si470x_i2c_interrupt,
IRQF_TRIGGER_FALLING, DRIVER_NAME, radio);
if (retval) {
dev_err(&client->dev, "Failed to register interrupt\n");
@ -492,7 +479,6 @@ static __devexit int si470x_i2c_remove(struct i2c_client *client)
struct si470x_device *radio = i2c_get_clientdata(client);
free_irq(client->irq, radio);
cancel_work_sync(&radio->radio_work);
video_unregister_device(radio->videodev);
kfree(radio);

1
drivers/media/radio/si470x/radio-si470x.h
View file

@ -182,7 +182,6 @@ struct si470x_device {
#if defined(CONFIG_I2C_SI470X) || defined(CONFIG_I2C_SI470X_MODULE)
struct i2c_client *client;
struct work_struct radio_work;
#endif
};