Commit 07d243a6 authored Jan 08, 2020 by Martin Blumenstingl Committed by Daniel Lezcano Jan 27, 2020

thermal: generic-adc: silence info message for IIO_TEMP channels

Since commit d36e2fa0 ("thermal: generic-adc: make lookup table
optional") "generic-adc-thermal" can be used with an IIO_TEMP channel.
In this case the following message is logged at probe time:
no lookup table, assuming DAC channel returns milliCelcius

Silence this info message if the channel type is known to be in
milli celsius. Keep this message when the channel type is unknown or not
of type temperature.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200107232044.889075-3-martin.blumenstingl@googlemail.com

parent c1fde6e1

drivers/thermal/thermal-generic-adc.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -76,13 +76,17 @@ static int gadc_thermal_read_linear_lookup_table(struct device *dev,
		struct gadc_thermal_info *gti)
		{
		struct device_node *np = dev->of_node;
		enum iio_chan_type chan_type;
		int ntable;
		int ret;

		ntable = of_property_count_elems_of_size(np, "temperature-lookup-table",
		sizeof(u32));
		if (ntable <= 0) {
		dev_notice(dev, "no lookup table, assuming DAC channel returns milliCelcius\n");
		ret = iio_get_channel_type(gti->channel, &chan_type);
		if (ret \|\| chan_type != IIO_TEMP)
		dev_notice(dev,
		"no lookup table, assuming DAC channel returns milliCelcius\n");
		return 0;
		}