i2c: designware: Get rid of legacy platform data

Platform data is a legacy interface to supply device properties
to the driver. In this case we don't have anymore in-kernel users
for it. Just remove it for good.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/i2c/busses/i2c-designware-platdrv.c

@@ -22,7 +22,6 @@
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/platform_data/i2c-designware.h>
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
@@ -206,7 +205,6 @@ static const struct dmi_system_id dw_i2c_hwmon_class_dmi[] = {
 
 static int dw_i2c_plat_probe(struct platform_device *pdev)
 {
-	struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct i2c_adapter *adap;
 	struct dw_i2c_dev *dev;
 	struct i2c_timings *t;
@@ -236,9 +234,6 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	reset_control_deassert(dev->rst);
 
 	t = &dev->timings;
-	if (pdata)
-		t->bus_freq_hz = pdata->i2c_scl_freq;
-	else
 	i2c_parse_fw_timings(&pdev->dev, t, false);
 
 	i2c_dw_adjust_bus_speed(dev);

include/linux/platform_data/i2c-designware.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright(c) 2014 Intel Corporation.
- */
-
-#ifndef I2C_DESIGNWARE_H
-#define I2C_DESIGNWARE_H
-
-struct dw_i2c_platform_data {
-	unsigned int i2c_scl_freq;
-};
-
-#endif