27 static struct mxs_i2c_regs *mxs_i2c_get_base(struct i2c_adapter *adap)  in mxs_i2c_get_base()  argument
29 	if (adap->hwadapnr == 0)  in mxs_i2c_get_base()
35 static unsigned int mxs_i2c_get_bus_speed(struct i2c_adapter *adap)  in mxs_i2c_get_bus_speed()  argument
37 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_get_bus_speed()
49 static uint mxs_i2c_set_bus_speed(struct i2c_adapter *adap, uint speed)  in mxs_i2c_set_bus_speed()  argument
51 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_set_bus_speed()
90 static void mxs_i2c_reset(struct i2c_adapter *adap)  in mxs_i2c_reset()  argument
92 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_reset()
94 	int speed = mxs_i2c_get_bus_speed(adap);  in mxs_i2c_reset()
109 	mxs_i2c_set_bus_speed(adap, speed);  in mxs_i2c_reset()
112 static void mxs_i2c_setup_read(struct i2c_adapter *adap, uint8_t chip, int len)  in mxs_i2c_setup_read()  argument
114 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_setup_read()
130 static int mxs_i2c_write(struct i2c_adapter *adap, uchar chip, uint addr,  in mxs_i2c_write()  argument
133 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_write()
188 static int mxs_i2c_wait_for_ack(struct i2c_adapter *adap)  in mxs_i2c_wait_for_ack()  argument
190 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_wait_for_ack()
222 	mxs_i2c_reset(adap);  in mxs_i2c_wait_for_ack()
226 static int mxs_i2c_if_read(struct i2c_adapter *adap, uint8_t chip,  in mxs_i2c_if_read()  argument
230 	struct mxs_i2c_regs *i2c_regs = mxs_i2c_get_base(adap);  in mxs_i2c_if_read()
236 	ret = mxs_i2c_write(adap, chip, addr, alen, NULL, 0, 0);  in mxs_i2c_if_read()
242 	ret = mxs_i2c_wait_for_ack(adap);  in mxs_i2c_if_read()
248 	mxs_i2c_setup_read(adap, chip, len);  in mxs_i2c_if_read()
249 	ret = mxs_i2c_wait_for_ack(adap);  in mxs_i2c_if_read()
277 static int mxs_i2c_if_write(struct i2c_adapter *adap, uint8_t chip,  in mxs_i2c_if_write()  argument
282 	ret = mxs_i2c_write(adap, chip, addr, alen, buffer, len, 1);  in mxs_i2c_if_write()
288 	ret = mxs_i2c_wait_for_ack(adap);  in mxs_i2c_if_write()
295 static int mxs_i2c_probe(struct i2c_adapter *adap, uint8_t chip)  in mxs_i2c_probe()  argument
298 	ret = mxs_i2c_write(adap, chip, 0, 1, NULL, 0, 1);  in mxs_i2c_probe()
300 		ret = mxs_i2c_wait_for_ack(adap);  in mxs_i2c_probe()
301 	mxs_i2c_reset(adap);  in mxs_i2c_probe()
305 static void mxs_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)  in mxs_i2c_init()  argument
307 	mxs_i2c_reset(adap);  in mxs_i2c_init()
308 	mxs_i2c_set_bus_speed(adap, speed);  in mxs_i2c_init()