i2c: mux: pca954x: remove support for unused platform data

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/of_irq.h>

#include <linux/platform_data/pca954x.h>

#include <linux/pm.h>

#include <linux/slab.h>

#include <linux/spinlock.h>

			 const struct i2c_device_id *id)

{

	struct i2c_adapter *adap = client->adapter;

	struct pca954x_platform_data *pdata = dev_get_platdata(&client->dev);

	struct device *dev = &client->dev;

	struct device_node *np = dev->of_node;

	bool idle_disconnect_dt;

	struct gpio_desc *gpio;

	int num, force, class;

	struct i2c_mux_core *muxc;

	struct pca954x *data;

	int num;

	int ret;

	if (!i2c_check_functionality(adap, I2C_FUNC_SMBUS_BYTE))

	/* Now create an adapter for each channel */

	for (num = 0; num < data->chip->nchans; num++) {

		bool idle_disconnect_pd = false;

		force = 0;			  /* dynamic adap number */

		class = 0;			  /* no class by default */

		if (pdata) {

			if (num < pdata->num_modes) {

				/* force static number */

				force = pdata->modes[num].adap_id;

				class = pdata->modes[num].class;

			} else

				/* discard unconfigured channels */

				break;

			idle_disconnect_pd = pdata->modes[num].deselect_on_exit;

		}

		data->deselect |= (idle_disconnect_pd ||

				   idle_disconnect_dt) << num;

		data->deselect |= idle_disconnect_dt << num;

		ret = i2c_mux_add_adapter(muxc, force, num, class);

		ret = i2c_mux_add_adapter(muxc, 0, num, 0);

		if (ret)

			goto fail_cleanup;

	}