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clocksource/drivers/renesas-ostm: Use unique device name instead of ostm

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Currently all OSTM devices are called "ostm", also in kernel messages.

As there can be multiple instances in an SoC, this can confuse the user.
Hence construct a unique name from the DT node name, like is done for
platform devices.

On RSK+RZA1, the boot log changes like:

    -clocksource: ostm: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 57352151442 ns
    +clocksource: timer@fcfec000: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 57352151442 ns
     sched_clock: 32 bits at 33MHz, resolution 30ns, wraps every 64440619504ns
    -ostm: used for clocksource
    -ostm: used for clock events
    +/soc/timer@fcfec000: used for clocksource
    +/soc/timer@fcfec400: used for clock events
     ...
    -clocksource: Switched to clocksource ostm
    +clocksource: Switched to clocksource timer@fcfec000

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191016144747.29538-5-geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven 2019-10-16 16:47:47 +02:00 committed by Daniel Lezcano
parent 227314239a
commit b35a5e5961
1 changed files with 5 additions and 5 deletions
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10
drivers/clocksource/renesas-ostm.c
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@ -64,9 +64,9 @@ static int __init ostm_init_clksrc(struct timer_of *to)
writeb(CTL_FREERUN, timer_of_base(to) + OSTM_CTL);
writeb(TS, timer_of_base(to) + OSTM_TS);
return clocksource_mmio_init(timer_of_base(to) + OSTM_CNT, "ostm",
timer_of_rate(to), 300, 32,
clocksource_mmio_readl_up);
return clocksource_mmio_init(timer_of_base(to) + OSTM_CNT,
to->np->full_name, timer_of_rate(to), 300,
32, clocksource_mmio_readl_up);
}
static u64 notrace ostm_read_sched_clock(void)
@ -190,13 +190,13 @@ static int __init ostm_init(struct device_node *np)
goto err_cleanup;
ostm_init_sched_clock(to);
pr_info("ostm: used for clocksource\n");
pr_info("%pOF: used for clocksource\n", np);
} else {
ret = ostm_init_clkevt(to);
if (ret)
goto err_cleanup;
pr_info("ostm: used for clock events\n");
pr_info("%pOF: used for clock events\n", np);
}
return 0;