[PATCH] devfreq: Convert to using %pOFn instead of device_node.name

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-pm at vger.kernel.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-samsung-soc at vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
 drivers/devfreq/event/exynos-ppmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
index a9c64f0d3284..c61de0bdf053 100644
--- a/drivers/devfreq/event/exynos-ppmu.c
+++ b/drivers/devfreq/event/exynos-ppmu.c

@@ -535,8 +535,8 @@ static int of_get_devfreq_events(struct device_node *np,
 
 		if (i == ARRAY_SIZE(ppmu_events)) {
 			dev_warn(dev,
-				"don't know how to configure events : %s\n",
-				node->name);
+				"don't know how to configure events : %pOFn\n",
+				node);
 			continue;
 		}