coresight: etm-perf: new PMU driver for ETM tracers

[cascardo/linux.git] / drivers / hwtracing / coresight / coresight-etm3x.c

diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c
index a9b820e..77b3741 100644 (file)
--- a/drivers/hwtracing/coresight/coresight-etm3x.c
+++ b/drivers/hwtracing/coresight/coresight-etm3x.c
@@ -35,6 +35,7 @@
 #include <asm/sections.h>
 
 #include "coresight-etm.h"
+#include "coresight-etm-perf.h"
 
 static int boot_enable;
 module_param_named(boot_enable, boot_enable, int, S_IRUGO);
@@ -827,6 +828,12 @@ static int etm_probe(struct amba_device *adev, const struct amba_id *id)
                goto err_arch_supported;
        }
 
+       ret = etm_perf_symlink(drvdata->csdev, true);
+       if (ret) {
+               coresight_unregister(drvdata->csdev);
+               goto err_arch_supported;
+       }
+
        pm_runtime_put(&adev->dev);
        dev_info(dev, "%s initialized\n", (char *)id->data);