On 05/10/12 10:07, Naveen Krishna Ch wrote:
Hello All,
I'm trying to add an ADC driver under IIO/ADC.
Machine is DT based so, passing the ADC device as tree node and
consumer devices (thermistors) as child nodes via DT.
I don't find a frame work to parse the child nodes and probe them like
I2C does using of/of_i2c.c
The DT snippet:
adc@12D10000 {
thermistor@3 {
compatible = "ntc,ncp15wb473";
consumer-name = "ntc,ncp15wb473";
consumer-channel = "adc-3";
pullup-uV = <1800000>;
pullup-ohm = <47000>;
pulldown-ohm = <0>;
connected-positive;
};
thermistor@4 {
compatible = "ntc,ncp15wb473";
consumer-name = "ntc,ncp15wb473";
consumer-channel = "adc-4";
pullup-uV = <1800000>;
pullup-ohm = <47000>;
pulldown-ohm = <0>;
connected-positive;
};
};
Parsing snippet:
for_each_child_of_node(node, client_node) {
char *channel, *label = NULL;
if (of_property_read_string(client_node,
"consumer-channel", &channel) != 0) {
dev_err(&pdev->dev, "Missing consumer-channel
property in the DT.\n");
return -EINVAL;
}
client_map[i].consumer_channel = channel;
label = "lable-adc"; //TODO
client_map[i].adc_channel_label = label;
if (of_property_read_string(client_node,
"consumer-name", &client_map[i].consumer_dev_name) != 0) {
dev_err(&pdev->dev, "Missing consumer-name
property in the DT.\n");
return -EINVAL;
}
i++;
}
Can some one suggest a way to get the consumer thermistor driver to
get probed from iio framework via DT.
Kindly, point me towards any existing framework to do the same.
Sorry, I don't think anyone has implemented a device tree version yet.
Just comes down to no one until you having needed it. Feel free to
send patches!
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