2  * I2C driver for Marvell 88PM860x
14 #include <linux/i2c.h>
20 int pm860x_reg_read(struct i2c_client *i2c, int reg)  in pm860x_reg_read()  argument
22 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);  in pm860x_reg_read()
23 	struct regmap *map = (i2c == chip->client) ? chip->regmap  in pm860x_reg_read()
36 int pm860x_reg_write(struct i2c_client *i2c, int reg,  in pm860x_reg_write()  argument
39 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);  in pm860x_reg_write()
40 	struct regmap *map = (i2c == chip->client) ? chip->regmap  in pm860x_reg_write()
49 int pm860x_bulk_read(struct i2c_client *i2c, int reg,  in pm860x_bulk_read()  argument
52 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);  in pm860x_bulk_read()
53 	struct regmap *map = (i2c == chip->client) ? chip->regmap  in pm860x_bulk_read()
62 int pm860x_bulk_write(struct i2c_client *i2c, int reg,  in pm860x_bulk_write()  argument
65 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);  in pm860x_bulk_write()
66 	struct regmap *map = (i2c == chip->client) ? chip->regmap  in pm860x_bulk_write()
75 int pm860x_set_bits(struct i2c_client *i2c, int reg,  in pm860x_set_bits()  argument
78 	struct pm860x_chip *chip = i2c_get_clientdata(i2c);  in pm860x_set_bits()
79 	struct regmap *map = (i2c == chip->client) ? chip->regmap  in pm860x_set_bits()
88 static int read_device(struct i2c_client *i2c, int reg,  in read_device()  argument
93 	struct i2c_adapter *adap = i2c->adapter;  in read_device()
94 	struct i2c_msg msg[2] = {{i2c->addr, 0, 1, msgbuf0},  in read_device()
95 				 {i2c->addr, I2C_M_RD, 0, msgbuf1},  in read_device()
114 static int write_device(struct i2c_client *i2c, int reg,  in write_device()  argument
118 	struct i2c_adapter *adap = i2c->adapter;  in write_device()
124 	msg.addr = i2c->addr;  in write_device()
135 int pm860x_page_reg_read(struct i2c_client *i2c, int reg)  in pm860x_page_reg_read()  argument
141 	i2c_lock_adapter(i2c->adapter);  in pm860x_page_reg_read()
142 	read_device(i2c, 0xFA, 0, &zero);  in pm860x_page_reg_read()
143 	read_device(i2c, 0xFB, 0, &zero);  in pm860x_page_reg_read()
144 	read_device(i2c, 0xFF, 0, &zero);  in pm860x_page_reg_read()
145 	ret = read_device(i2c, reg, 1, &data);  in pm860x_page_reg_read()
148 	read_device(i2c, 0xFE, 0, &zero);  in pm860x_page_reg_read()
149 	read_device(i2c, 0xFC, 0, &zero);  in pm860x_page_reg_read()
150 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_reg_read()
155 int pm860x_page_reg_write(struct i2c_client *i2c, int reg,  in pm860x_page_reg_write()  argument
161 	i2c_lock_adapter(i2c->adapter);  in pm860x_page_reg_write()
162 	read_device(i2c, 0xFA, 0, &zero);  in pm860x_page_reg_write()
163 	read_device(i2c, 0xFB, 0, &zero);  in pm860x_page_reg_write()
164 	read_device(i2c, 0xFF, 0, &zero);  in pm860x_page_reg_write()
165 	ret = write_device(i2c, reg, 1, &data);  in pm860x_page_reg_write()
166 	read_device(i2c, 0xFE, 0, &zero);  in pm860x_page_reg_write()
167 	read_device(i2c, 0xFC, 0, &zero);  in pm860x_page_reg_write()
168 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_reg_write()
173 int pm860x_page_bulk_read(struct i2c_client *i2c, int reg,  in pm860x_page_bulk_read()  argument
179 	i2c_lock_adapter(i2c->adapter);  in pm860x_page_bulk_read()
180 	read_device(i2c, 0xfa, 0, &zero);  in pm860x_page_bulk_read()
181 	read_device(i2c, 0xfb, 0, &zero);  in pm860x_page_bulk_read()
182 	read_device(i2c, 0xff, 0, &zero);  in pm860x_page_bulk_read()
183 	ret = read_device(i2c, reg, count, buf);  in pm860x_page_bulk_read()
184 	read_device(i2c, 0xFE, 0, &zero);  in pm860x_page_bulk_read()
185 	read_device(i2c, 0xFC, 0, &zero);  in pm860x_page_bulk_read()
186 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_bulk_read()
191 int pm860x_page_bulk_write(struct i2c_client *i2c, int reg,  in pm860x_page_bulk_write()  argument
197 	i2c_lock_adapter(i2c->adapter);  in pm860x_page_bulk_write()
198 	read_device(i2c, 0xFA, 0, &zero);  in pm860x_page_bulk_write()
199 	read_device(i2c, 0xFB, 0, &zero);  in pm860x_page_bulk_write()
200 	read_device(i2c, 0xFF, 0, &zero);  in pm860x_page_bulk_write()
201 	ret = write_device(i2c, reg, count, buf);  in pm860x_page_bulk_write()
202 	read_device(i2c, 0xFE, 0, &zero);  in pm860x_page_bulk_write()
203 	read_device(i2c, 0xFC, 0, &zero);  in pm860x_page_bulk_write()
204 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_bulk_write()
205 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_bulk_write()
210 int pm860x_page_set_bits(struct i2c_client *i2c, int reg,  in pm860x_page_set_bits()  argument
217 	i2c_lock_adapter(i2c->adapter);  in pm860x_page_set_bits()
218 	read_device(i2c, 0xFA, 0, &zero);  in pm860x_page_set_bits()
219 	read_device(i2c, 0xFB, 0, &zero);  in pm860x_page_set_bits()
220 	read_device(i2c, 0xFF, 0, &zero);  in pm860x_page_set_bits()
221 	ret = read_device(i2c, reg, 1, &value);  in pm860x_page_set_bits()
226 	ret = write_device(i2c, reg, 1, &value);  in pm860x_page_set_bits()
228 	read_device(i2c, 0xFE, 0, &zero);  in pm860x_page_set_bits()
229 	read_device(i2c, 0xFC, 0, &zero);  in pm860x_page_set_bits()
230 	i2c_unlock_adapter(i2c->adapter);  in pm860x_page_set_bits()
239 MODULE_DEVICE_TABLE(i2c, pm860x_id_table);
241 static int verify_addr(struct i2c_client *i2c)  in verify_addr()  argument
247 	if (i2c == NULL)  in verify_addr()
251 		if (i2c->addr == *(addr_8606 + i))  in verify_addr()
256 		if (i2c->addr == *(addr_8607 + i))  in verify_addr()
352 		pr_err("Failed to register 88PM860x I2C driver: %d\n", ret);  in pm860x_i2c_init()
363 MODULE_DESCRIPTION("I2C Driver for Marvell 88PM860x");