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staging:iio:adt7410: use local platformdata if none is specified 

The adt7410 expects information about an irq in platform_data.
The driver can work without an irq, so make platform_data optional
by specifying a dummy platform_data if the device has none.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Sascha Hauer 2012-07-03 11:27:53 +02:00 committed by Jonathan Cameron
parent d297b9bdad
commit c732a24c5a
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/iio/adc/adt7410.c
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@ -720,6 +720,7 @@ static int __devinit adt7410_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
int ret = 0;
unsigned long *adt7410_platform_data = client->dev.platform_data;
unsigned long local_pdata[] = {0, 0};
indio_dev = iio_device_alloc(sizeof(*chip));
if (indio_dev == NULL) {
@ -737,6 +738,9 @@ static int __devinit adt7410_probe(struct i2c_client *client,
indio_dev->info = &adt7410_info;
indio_dev->modes = INDIO_DIRECT_MODE;
if (!adt7410_platform_data)
adt7410_platform_data = local_pdata;
/* CT critcal temperature event. line 0 */
if (client->irq) {
ret = request_threaded_irq(client->irq,