Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) // Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/i3c/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <linux/i3c/master.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) static int regmap_i3c_write(void *context, const void *data, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	struct device *dev = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	struct i3c_device *i3c = dev_to_i3cdev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	struct i3c_priv_xfer xfers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 		{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 			.rnw = false,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 			.len = count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 			.data.out = data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	return i3c_device_do_priv_xfers(i3c, xfers, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) static int regmap_i3c_read(void *context,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 			   const void *reg, size_t reg_size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			   void *val, size_t val_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	struct device *dev = context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	struct i3c_device *i3c = dev_to_i3cdev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	struct i3c_priv_xfer xfers[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	xfers[0].rnw = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	xfers[0].len = reg_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	xfers[0].data.out = reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	xfers[1].rnw = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	xfers[1].len = val_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	xfers[1].data.in = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	return i3c_device_do_priv_xfers(i3c, xfers, 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static struct regmap_bus regmap_i3c = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	.write = regmap_i3c_write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	.read = regmap_i3c_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 				      const struct regmap_config *config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 				      struct lock_class_key *lock_key,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 				      const char *lock_name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	return __devm_regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 				  lock_key, lock_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) EXPORT_SYMBOL_GPL(__devm_regmap_init_i3c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) MODULE_AUTHOR("Vitor Soares <vitor.soares@synopsys.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) MODULE_DESCRIPTION("Regmap I3C Module");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) MODULE_LICENSE("GPL v2");