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coresight: etm4x: Fetch device name in sysfs from device tree

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If coresight-name exists in etm/ete nodes, use coresight-name value
as device name.

Change-Id: I1297241d8ddc2b29f8745ed33ed5b2089f6b0bcb
Signed-off-by: Mao Jinlong <jinlmao@codeaurora.org>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
This commit is contained in:
Tao Zhang 2021-08-09 15:06:19 +08:00 committed by Gerrit - the friendly Code Review server
parent 3a0a1539ac
commit 91ab668fcf
1 changed files with 3 additions and 1 deletions
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4
drivers/hwtracing/coresight/coresight-etm4x-core.c
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@ -26,6 +26,7 @@
#include <linux/amba/bus.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include <linux/of.h>
#include <linux/perf_event.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@ -1966,7 +1967,8 @@ static int etm4_probe(struct device *dev, void __iomem *base, u32 etm_pid)
type_name = "etm";
}
desc.name = devm_kasprintf(dev, GFP_KERNEL,
if (of_property_read_string(dev->of_node, "coresight-name", &desc.name))
desc.name = devm_kasprintf(dev, GFP_KERNEL,
"%s%d", type_name, drvdata->cpu);
if (!desc.name)
return -ENOMEM;