[PATCH 4.19 019/114] clocksource/drivers/timer-of: Use unique device name instead of timer

From: Greg Kroah-Hartman
Date: Thu Jan 02 2020 - 17:20:04 EST

From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

[ Upstream commit 4411464d6f8b5e5759637235a6f2b2a85c2be0f1 ]

If a hardware-specific driver does not provide a name, the timer-of core
falls back to device_node.name. Due to generic DT node naming policies,
that name is almost always "timer", and thus doesn't identify the actual
timer used.

Fix this by using device_node.full_name instead, which includes the unit

Example impact on /proc/timer_list:

-Clock Event Device: timer
+Clock Event Device: timer@fcfec400

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20191016144747.29538-3-geert+renesas@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
drivers/clocksource/timer-of.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c
index 06ed88a2a8a0..6e2cb3693ed8 100644
--- a/drivers/clocksource/timer-of.c
+++ b/drivers/clocksource/timer-of.c
@@ -199,7 +199,7 @@ int __init timer_of_init(struct device_node *np, struct timer_of *to)

if (!to->clkevt.name)
- to->clkevt.name = np->name;
+ to->clkevt.name = np->full_name;

to->np = np;