The GPIO core provides a handy GPIO_LOOKUP() macro to populate a struct
gpiod_lookup array without having to spell out attribute names (but
still avoid breakage when attributes within the struct are rearranged
or added).
The axp288_adc.c driver uses a similar macro to populate a struct
iio_map array. Make it available to others.
Cc: Chen-Yu Tsai <wens@xxxxxxxx>
Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
---
The motivation for this change is that we're using it in a module which
is currently out-of-tree. I'm only converting axp288_adc.c here as it
already has such a macro, and not all the other drivers which declare
iio_map arrays because such trivial refactoring is not always welcome.
I could convert these other drivers as well if desired. If so, please
let me know if this should all be put in a single patch or split per
driver.
Note that I've replaced _adc_channel_label with _provider_channel,
which is more apt in my opinion. Please shout if you disagree.
Thanks!
drivers/iio/adc/axp288_adc.c | 20 ++++++--------------
include/linux/iio/machine.h | 7 +++++++
2 files changed, 13 insertions(+), 14 deletions(-)
diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
index 60c9e853dd81..031d568b4972 100644
--- a/drivers/iio/adc/axp288_adc.c
+++ b/drivers/iio/adc/axp288_adc.c
@@ -92,22 +92,14 @@ static const struct iio_chan_spec axp288_adc_channels[] = {
},
};
-#define AXP288_ADC_MAP(_adc_channel_label, _consumer_dev_name, \
- _consumer_channel) \
- { \
- .adc_channel_label = _adc_channel_label, \
- .consumer_dev_name = _consumer_dev_name, \
- .consumer_channel = _consumer_channel, \
- }
-
/* for consumer drivers */
static struct iio_map axp288_adc_default_maps[] = {
- AXP288_ADC_MAP("TS_PIN", "axp288-batt", "axp288-batt-temp"),
- AXP288_ADC_MAP("PMIC_TEMP", "axp288-pmic", "axp288-pmic-temp"),
- AXP288_ADC_MAP("GPADC", "axp288-gpadc", "axp288-system-temp"),
- AXP288_ADC_MAP("BATT_CHG_I", "axp288-chrg", "axp288-chrg-curr"),
- AXP288_ADC_MAP("BATT_DISCHRG_I", "axp288-chrg", "axp288-chrg-d-curr"),
- AXP288_ADC_MAP("BATT_V", "axp288-batt", "axp288-batt-volt"),
+ IIO_MAP("TS_PIN", "axp288-batt", "axp288-batt-temp"),
+ IIO_MAP("PMIC_TEMP", "axp288-pmic", "axp288-pmic-temp"),
+ IIO_MAP("GPADC", "axp288-gpadc", "axp288-system-temp"),
+ IIO_MAP("BATT_CHG_I", "axp288-chrg", "axp288-chrg-curr"),
+ IIO_MAP("BATT_DISCHRG_I", "axp288-chrg", "axp288-chrg-d-curr"),
+ IIO_MAP("BATT_V", "axp288-batt", "axp288-batt-volt"),
{},
};
diff --git a/include/linux/iio/machine.h b/include/linux/iio/machine.h
index 1601a2a63a72..5e1cfa75f652 100644
--- a/include/linux/iio/machine.h
+++ b/include/linux/iio/machine.h
@@ -28,4 +28,11 @@ struct iio_map {
void *consumer_data;
};
+#define IIO_MAP(_provider_channel, _consumer_dev_name, _consumer_channel) \
+{ \
+ .adc_channel_label = _provider_channel, \
+ .consumer_dev_name = _consumer_dev_name, \
+ .consumer_channel = _consumer_channel, \
+}
+
#endif
--
2.11.0
--
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