[PATCH v3 15/30] coresight: Make sure device uses DT for obsolete compatible check

From: Suzuki K Poulose
Date: Tue May 07 2019 - 06:56:39 EST


As we prepare to add support for ACPI bindings, let us make sure we do
the compatible check only if we are sure we are dealing with a DT based
system.

Cc: Leo Yan <leo.yan@xxxxxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
---
drivers/hwtracing/coresight/coresight-funnel.c | 3 ++-
drivers/hwtracing/coresight/coresight-replicator.c | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-funnel.c b/drivers/hwtracing/coresight/coresight-funnel.c
index 6236a84..3423042 100644
--- a/drivers/hwtracing/coresight/coresight-funnel.c
+++ b/drivers/hwtracing/coresight/coresight-funnel.c
@@ -196,7 +196,8 @@ static int funnel_probe(struct device *dev, struct resource *res)
dev->platform_data = pdata;
}

- if (of_device_is_compatible(np, "arm,coresight-funnel"))
+ if (is_of_node(dev_fwnode(dev)) &&
+ of_device_is_compatible(dev->of_node, "arm,coresight-funnel"))
pr_warn_once("Uses OBSOLETE CoreSight funnel binding\n");

drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index ee6ad34..7e05145 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -187,7 +187,8 @@ static int replicator_probe(struct device *dev, struct resource *res)
dev->platform_data = pdata;
}

- if (of_device_is_compatible(np, "arm,coresight-replicator"))
+ if (is_of_node(dev_fwnode(dev)) &&
+ of_device_is_compatible(dev->of_node, "arm,coresight-replicator"))
pr_warn_once("Uses OBSOLETE CoreSight replicator binding\n");

drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
--
2.7.4