i2c_freq_mode_string
dev_dbg(dev->dev, "Bus speed: %s\n", i2c_freq_mode_string(t->bus_freq_hz));
i2c_freq_mode_string(ctlr->t.bus_freq_hz), hw_version);
dev_info(i2c->dev, "speed mode is %s\n", i2c_freq_mode_string(params[0]));
EXPORT_SYMBOL_GPL(i2c_freq_mode_string);
const char *i2c_freq_mode_string(u32 bus_freq_hz);