linux-kernel - [tip: timers/core] clocksource/drivers/renesas-ostm: Use unique device name instead of ostm

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Date:   Mon, 04 Nov 2019 17:54:14 -0000
From:   "tip-bot2 for Geert Uytterhoeven" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...en8.de>,
        linux-kernel@...r.kernel.org
Subject: [tip: timers/core] clocksource/drivers/renesas-ostm: Use unique
 device name instead of ostm

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     b35a5e5961f814799b75a97a16c9b51e0d477c06
Gitweb:        https://git.kernel.org/tip/b35a5e5961f814799b75a97a16c9b51e0d477c06
Author:        Geert Uytterhoeven <geert+renesas@...der.be>
AuthorDate:    Wed, 16 Oct 2019 16:47:47 +02:00
Committer:     Daniel Lezcano <daniel.lezcano@...aro.org>
CommitterDate: Mon, 04 Nov 2019 10:38:46 +01:00

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

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@...ec000: 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@...ec000: used for clocksource
    +/soc/timer@...ec400: used for clock events
     ...
    -clocksource: Switched to clocksource ostm
    +clocksource: Switched to clocksource timer@...ec000

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Link: https://lore.kernel.org/r/20191016144747.29538-5-geert+renesas@glider.be
---
 drivers/clocksource/renesas-ostm.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/renesas-ostm.c b/drivers/clocksource/renesas-ostm.c
index 46012d9..3d06ba6 100644
--- a/drivers/clocksource/renesas-ostm.c
+++ b/drivers/clocksource/renesas-ostm.c
@@ -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;