RE: [PATCH v3 03/18] clocksource: Add NPS400 timers driver

From: Noam Camus
Date: Tue Dec 08 2015 - 08:00:59 EST


From: Daniel Lezcano [mailto:daniel.lezcano@xxxxxxxxxx]
Sent: Friday, December 04, 2015 11:13 AM


>It would be cleaner to define a fixed clock and then add a phandle in the DT.

> timer_clk: timer_clk {
> #clock-cells = <0>;
> compatible = "fixed-clock";
> clock-frequency = <123456789>;
> };

> timer {
> compatible = "ezchip,nps400-timer";
> clocks = <&timer_clk>;
> }

>That will result in the same code than the other drivers.

> clk = of_clk_get(np, 0);
> if (IS_ERR(clk)) {
> pr_err("%s: invalid clock\n", np->full_name);
> return;
> }

> rate = clk_get_rate(clk);

Seem like my driver comes before "fixed-clock" driver so I failed since I got no clocksource provider.
How can this be solved?

-Noam