// SPDX-License-Identifier: GPL-2.0// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. #include <linux/array_size.h>#include <linux/regmap.h>#include <linux/i3c/device.h>#include <linux/i3c/master.h>#include <linux/module.h> static int regmap_i3c_write(void *context, const void *data, size_t count){	struct device *dev = context;	struct i3c_device *i3c = dev_to_i3cdev(dev);	struct i3c_xfer xfers[] = {		{			.rnw = false,			.len = count,			.data.out = data,		},	}; 	return i3c_device_do_xfers(i3c, xfers, ARRAY_SIZE(xfers), I3C_SDR);} static int regmap_i3c_read(void *context,			   const void *reg, size_t reg_size,			   void *val, size_t val_size){	struct device *dev = context;	struct i3c_device *i3c = dev_to_i3cdev(dev);	struct i3c_xfer xfers[2]; 	xfers[0].rnw = false;	xfers[0].len = reg_size;	xfers[0].data.out = reg; 	xfers[1].rnw = true;	xfers[1].len = val_size;	xfers[1].data.in = val; 	return i3c_device_do_xfers(i3c, xfers, ARRAY_SIZE(xfers), I3C_SDR);} static const struct regmap_bus regmap_i3c = {	.write = regmap_i3c_write,	.read = regmap_i3c_read,}; struct regmap *__regmap_init_i3c(struct i3c_device *i3c,				 const struct regmap_config *config,				 struct lock_class_key *lock_key,				 const char *lock_name){	return __regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config,				  lock_key, lock_name);}EXPORT_SYMBOL_GPL(__regmap_init_i3c); struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,				      const struct regmap_config *config,				      struct lock_class_key *lock_key,				      const char *lock_name){	return __devm_regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config,				  lock_key, lock_name);}EXPORT_SYMBOL_GPL(__devm_regmap_init_i3c); MODULE_AUTHOR("Vitor Soares <vitor.soares@synopsys.com>");MODULE_DESCRIPTION("regmap I3C Module");MODULE_LICENSE("GPL v2");