HZ_TO_MHZ
freq = DIV_ROUND_UP(i2c_dev->parent_rate, HZ_TO_MHZ);
u32 freq = DIV_ROUND_UP(i2c_dev->parent_rate, HZ_TO_MHZ);
data_rate_mbps = HZ_TO_MHZ(config->hs_clk_rate);
u64 data_rate_mbps = HZ_TO_MHZ(priv->config.hs_clk_rate);
HZ_TO_MHZ;