* Sanity check for the adapter hardware - check the reaction of
* the bus lines only if it seems to be idle.
*/
-static int test_bus(struct i2c_algo_bit_data *adap, char *name)
+static int test_bus(struct i2c_adapter *i2c_adap)
{
- int scl, sda;
+ struct i2c_algo_bit_data *adap = i2c_adap->algo_data;
+ const char *name = i2c_adap->name;
+ int scl, sda, ret;
+
+ if (adap->pre_xfer) {
+ ret = adap->pre_xfer(i2c_adap);
+ if (ret < 0)
+ return -ENODEV;
+ }
if (adap->getscl == NULL)
pr_info("%s: Testing SDA only, SCL is not readable\n", name);
"while pulling SCL high!\n", name);
goto bailout;
}
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
pr_info("%s: Test OK\n", name);
return 0;
bailout:
sdahi(adap);
sclhi(adap);
+
+ if (adap->post_xfer)
+ adap->post_xfer(i2c_adap);
+
return -ENODEV;
}
int ret;
if (bit_test) {
- ret = test_bus(bit_adap, adap->name);
+ ret = test_bus(adap);
if (ret < 0)
return -ENODEV;
}
/* Let legacy drivers scan this bus for matching devices */
if (driver->attach_adapter) {
- dev_warn(&adap->dev, "attach_adapter method is deprecated\n");
+ dev_warn(&adap->dev, "%s: attach_adapter method is deprecated\n",
+ driver->driver.name);
dev_warn(&adap->dev, "Please use another way to instantiate "
"your i2c_client\n");
/* We ignore the return code; if it fails, too bad */
if (!driver->detach_adapter)
return 0;
- dev_warn(&adapter->dev, "detach_adapter method is deprecated\n");
+ dev_warn(&adapter->dev, "%s: detach_adapter method is deprecated\n",
+ driver->driver.name);
res = driver->detach_adapter(adapter);
if (res)
dev_err(&adapter->dev, "detach_adapter failed (%d) "