usb/stk1160/stk1160-i2c.c

56 	int rc;
59 	rc = stk1160_write_reg(dev, STK1160_SICTL_SDA, addr);
60 	if (rc < 0)
61 		return rc;
64 	rc = stk1160_write_reg(dev, STK1160_SBUSW_WA, reg);
65 	if (rc < 0)
66 		return rc;
69 	rc = stk1160_write_reg(dev, STK1160_SBUSW_WD, value);
70 	if (rc < 0)
71 		return rc;
74 	rc = stk1160_write_reg(dev, STK1160_SICTL, 0x01);
75 	if (rc < 0)
76 		return rc;
78 	rc = stk1160_i2c_busy_wait(dev, 0x04);
79 	if (rc < 0)
80 		return rc;
88 	int rc;
91 	rc = stk1160_write_reg(dev, STK1160_SICTL_SDA, addr);
92 	if (rc < 0)
93 		return rc;
96 	rc = stk1160_write_reg(dev, STK1160_SBUSR_RA, reg);
97 	if (rc < 0)
98 		return rc;
101 	rc = stk1160_write_reg(dev, STK1160_SICTL, 0x20);
102 	if (rc < 0)
103 		return rc;
105 	rc = stk1160_i2c_busy_wait(dev, 0x01);
106 	if (rc < 0)
107 		return rc;
109 	rc = stk1160_read_reg(dev, STK1160_SBUSR_RD, value);
110 	if (rc < 0)
111 		return rc;
123 	int rc;
126 	rc = stk1160_write_reg(dev, STK1160_SICTL_SDA, addr);
127 	if (rc < 0)
128 		return rc;
131 	rc = stk1160_write_reg(dev, STK1160_SBUSR_RA, 0x00);
132 	if (rc < 0)
133 		return rc;
136 	rc = stk1160_write_reg(dev, STK1160_SICTL, 0x20);
137 	if (rc < 0)
138 		return rc;
140 	rc = stk1160_i2c_busy_wait(dev, 0x01);
141 	if (rc < 0)
155 	int addr, rc, i;
163 			rc = stk1160_i2c_check_for_device(dev, addr);
164 			if (rc < 0) {
166 				return rc;
172 			rc = -EOPNOTSUPP;
181 				rc = -EOPNOTSUPP;
187 			rc = stk1160_i2c_read_reg(dev, addr, msgs[i].buf[0],
198 				rc = -EOPNOTSUPP;
205 			rc = stk1160_i2c_write_reg(dev, addr, msgs[i].buf[0],
209 		if (rc < 0)
216 	dprintk_i2c(" ERROR: %d\n", rc);
249 	int rc;
258 	rc = i2c_add_adapter(&dev->i2c_adap);
259 	if (rc < 0) {
260 		stk1160_err("cannot add i2c adapter (%d)\n", rc);
261 		return rc;