117 	/* assert: scl, sda are high */  in i2c_start()
185 	/* read ack: SDA should be pulled down by slave, or it may  in i2c_outb()
187 	 * Always report ACK if SDA is write-only.  in i2c_outb()
189 	ack = !adap->getsda || !getsda(adap);    /* ack: sda is pulled low -> success */  in i2c_outb()
195 	/* assert: scl is low (sda undef) */  in i2c_outb()
234 	int scl, sda, ret;  in test_bus()  local
243 		pr_info("%s: SDA is write-only, testing not possible\n", name);  in test_bus()
247 	sda = adap->getsda ? getsda(adap) : 1;  in test_bus()
249 	if (!scl || !sda) {  in test_bus()
250 		pr_warn("%s: bus seems to be busy (scl=%d, sda=%d)\n", name, scl, sda);  in test_bus()
256 		pr_warn("%s: SDA stuck high!\n", name);  in test_bus()
260 		pr_warn("%s: SCL unexpected low while pulling SDA low!\n", name);  in test_bus()
266 		pr_warn("%s: SDA stuck low!\n", name);  in test_bus()
270 		pr_warn("%s: SCL unexpected low while pulling SDA high!\n", name);  in test_bus()
280 		pr_warn("%s: SDA unexpected low while pulling SCL low!\n", name);  in test_bus()
290 		pr_warn("%s: SDA unexpected low while pulling SCL high!\n", name);  in test_bus()
389 	/* assert: sda is high */  in acknak()
654 	 * We tried forcing SCL/SDA to an initial state here. But that caused a  in __i2c_bit_add_bus()
663 		dev_warn(&adap->dev, "Not I2C compliant: can't read SDA\n");  in __i2c_bit_add_bus()