hwmon: shtc1: add support for device tree bindings

#include <linux/err.h>

#include <linux/delay.h>

#include <linux/platform_data/shtc1.h>

#include <linux/of.h>

/* commands (high precision mode) */

static const unsigned char shtc1_cmd_measure_blocking_hpm[]    = { 0x7C, 0xA2 };

	enum shtcx_chips chip = i2c_match_id(shtc1_id, client)->driver_data;

	struct i2c_adapter *adap = client->adapter;

	struct device *dev = &client->dev;

	struct device_node *np = dev->of_node;

	if (!i2c_check_functionality(adap, I2C_FUNC_I2C)) {

		dev_err(dev, "plain i2c transactions not supported\n");

	data->client = client;

	data->chip = chip;

	if (np) {

		data->setup.blocking_io = of_property_read_bool(np, "sensirion,blocking-io");

		data->setup.high_precision = !of_property_read_bool(np, "sensicon,low-precision");

	} else {

		if (client->dev.platform_data)

			data->setup = *(struct shtc1_platform_data *)dev->platform_data;

	}

	shtc1_select_command(data);

	mutex_init(&data->update_lock);

};

MODULE_DEVICE_TABLE(i2c, shtc1_id);

static const struct of_device_id shtc1_of_match[] = {

	{ .compatible = "sensirion,shtc1" },

	{ .compatible = "sensirion,shtw1" },

	{ .compatible = "sensirion,shtc3" },

	{ }

};

MODULE_DEVICE_TABLE(of, shtc1_of_match);

static struct i2c_driver shtc1_i2c_driver = {

	.driver.name  = "shtc1",

	.driver = {

		.name = "shtc1",

		.of_match_table = shtc1_of_match,

	},

	.probe_new    = shtc1_probe,

	.id_table     = shtc1_id,

};