linux-kernel - [PATCH 2/4] coresight: replicator: Add new device id for static replicator

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Message-Id: <20190502165405.31573-3-mathieu.poirier@linaro.org>
Date:   Thu,  2 May 2019 10:54:03 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] coresight: replicator: Add new device id for static replicator

From: Leo Yan <leo.yan@...aro.org>

This patch adds a device id for the new static replicator compatible
string; it changes the driver name from "coresight-replicator" to
"coresight-static-replicator" as well.

This patch also gives warning when use the replicator obsolete DT
binding.

Signed-off-by: Leo Yan <leo.yan@...aro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/hwtracing/coresight/coresight-replicator.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/hwtracing/coresight/coresight-replicator.c b/drivers/hwtracing/coresight/coresight-replicator.c
index 4e0da85efd2d..8c9ce74498e1 100644
--- a/drivers/hwtracing/coresight/coresight-replicator.c
+++ b/drivers/hwtracing/coresight/coresight-replicator.c
@@ -189,6 +189,9 @@ static int replicator_probe(struct device *dev, struct resource *res)
 		dev->platform_data = pdata;
 	}
 
+	if (of_device_is_compatible(np, "arm,coresight-replicator"))
+		pr_warn_once("Uses OBSOLETE CoreSight replicator binding\n");
+
 	drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
@@ -285,13 +288,14 @@ static const struct dev_pm_ops replicator_dev_pm_ops = {
 
 static const struct of_device_id static_replicator_match[] = {
 	{.compatible = "arm,coresight-replicator"},
+	{.compatible = "arm,coresight-static-replicator"},
 	{}
 };
 
 static struct platform_driver static_replicator_driver = {
 	.probe          = static_replicator_probe,
 	.driver         = {
-		.name   = "coresight-replicator",
+		.name   = "coresight-static-replicator",
 		.of_match_table = static_replicator_match,
 		.pm	= &replicator_dev_pm_ops,
 		.suppress_bind_attrs = true,
-- 
2.17.1