> > @@ -961,7 +962,7 @@ static void qcom_geni_serial_set_termios(struct uart_port *uport, > > goto out_restart_rx; > > > > uport->uartclk = clk_rate; > > - clk_set_rate(port->se.clk, clk_rate); > > + dev_pm_opp_set_rate(uport->dev, clk_rate); Hi Rajendra, I see lowest rpmhpd_opp_low_svs opp is for 75MHz. It is a bit higher for a serial. I am just curious about this. I also want to confirm that the rpmhpd_opp_low_svs voltage restriction is for serial controller, not for clock controller? Because I see there is similar restriction to clock controller on another platform, the restriction is for branch clock, not leaf clock that consumer device will get. Jun