CLK_ROUND_RATE(9)                        Clock Framework                        CLK_ROUND_RATE(9)



NAME
       clk_round_rate - adjust a rate to the exact rate a clock can provide

SYNOPSIS
       long clk_round_rate(struct clk * clk, unsigned long rate);

ARGUMENTS
       clk
           clock source

       rate
           desired clock rate in Hz

DESCRIPTION
       This answers the question “if I were to pass rate to clk_set_rate, what clock rate would I
       end up with?”  without changing the hardware in any way. In other words:

       rate = clk_round_rate(clk, r);

       and:

       clk_set_rate(clk, r); rate = clk_get_rate(clk);

       are equivalent except the former does not modify the clock hardware in any way.

       Returns rounded clock rate in Hz, or negative errno.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                         CLK_ROUND_RATE(9)