iio: Update iio_channel_get API to use consumer device pointer as argument
For iio_channel_get to work with OF based configurations, it needs the
consumer device pointer instead of the consumer device name as argument.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Anton Vorontsov <anton@enomsg.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index eda2a1aa..d0233cd 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -135,8 +135,7 @@
;
data->num_conditions = i;
- data->chan = iio_channel_get(dev_name(&pdev->dev),
- pdata->consumer_channel);
+ data->chan = iio_channel_get(&pdev->dev, pdata->consumer_channel);
if (IS_ERR(data->chan)) {
err = PTR_ERR(data->chan);
goto out;
diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index c42aba6..b289915b 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -93,7 +93,8 @@
}
-struct iio_channel *iio_channel_get(const char *name, const char *channel_name)
+static struct iio_channel *iio_channel_get_sys(const char *name,
+ const char *channel_name)
{
struct iio_map_internal *c_i = NULL, *c = NULL;
struct iio_channel *channel;
@@ -144,6 +145,14 @@
iio_device_put(c->indio_dev);
return ERR_PTR(err);
}
+
+struct iio_channel *iio_channel_get(struct device *dev,
+ const char *channel_name)
+{
+ const char *name = dev ? dev_name(dev) : NULL;
+
+ return iio_channel_get_sys(name, channel_name);
+}
EXPORT_SYMBOL_GPL(iio_channel_get);
void iio_channel_release(struct iio_channel *channel)
diff --git a/drivers/power/generic-adc-battery.c b/drivers/power/generic-adc-battery.c
index 32ce17e..42733c4 100644
--- a/drivers/power/generic-adc-battery.c
+++ b/drivers/power/generic-adc-battery.c
@@ -287,8 +287,8 @@
* based on the channel supported by consumer device.
*/
for (chan = 0; chan < ARRAY_SIZE(gab_chan_name); chan++) {
- adc_bat->channel[chan] = iio_channel_get(dev_name(&pdev->dev),
- gab_chan_name[chan]);
+ adc_bat->channel[chan] = iio_channel_get(&pdev->dev,
+ gab_chan_name[chan]);
if (IS_ERR(adc_bat->channel[chan])) {
ret = PTR_ERR(adc_bat->channel[chan]);
} else {
diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c
index 22b6407c..2788908 100644
--- a/drivers/power/lp8788-charger.c
+++ b/drivers/power/lp8788-charger.c
@@ -580,7 +580,7 @@
}
}
-static void lp8788_setup_adc_channel(const char *consumer_name,
+static void lp8788_setup_adc_channel(struct device *dev,
struct lp8788_charger *pchg)
{
struct lp8788_charger_platform_data *pdata = pchg->pdata;
@@ -590,11 +590,11 @@
return;
/* ADC channel for battery voltage */
- chan = iio_channel_get(consumer_name, pdata->adc_vbatt);
+ chan = iio_channel_get(dev, pdata->adc_vbatt);
pchg->chan[LP8788_VBATT] = IS_ERR(chan) ? NULL : chan;
/* ADC channel for battery temperature */
- chan = iio_channel_get(consumer_name, pdata->adc_batt_temp);
+ chan = iio_channel_get(dev, pdata->adc_batt_temp);
pchg->chan[LP8788_BATT_TEMP] = IS_ERR(chan) ? NULL : chan;
}
@@ -704,7 +704,7 @@
if (ret)
return ret;
- lp8788_setup_adc_channel(pdev->name, pchg);
+ lp8788_setup_adc_channel(&pdev->dev, pchg);
ret = lp8788_psy_register(pdev, pchg);
if (ret)
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index a85787a..833926c 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -31,14 +31,15 @@
/**
* iio_channel_get() - get description of all that is needed to access channel.
- * @name: Unique name of the device as provided in the iio_map
+ * @dev: Pointer to consumer device. Device name must match
+ * the name of the device as provided in the iio_map
* with which the desired provider to consumer mapping
* was registered.
* @consumer_channel: Unique name to identify the channel on the consumer
* side. This typically describes the channels use within
* the consumer. E.g. 'battery_voltage'
*/
-struct iio_channel *iio_channel_get(const char *name,
+struct iio_channel *iio_channel_get(struct device *dev,
const char *consumer_channel);
/**