diff options
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm4x.c | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c index 7e93f7654347..617c766f032e 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x.c +++ b/drivers/hwtracing/coresight/coresight-etm4x.c @@ -68,24 +68,8 @@ static bool etm4_arch_supported(u8 arch) static int etm4_trace_id(struct coresight_device *csdev) { struct etmv4_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); - unsigned long flags; - int trace_id = -1; - if (!drvdata->enable) - return drvdata->trcid; - - pm_runtime_get_sync(drvdata->dev); - spin_lock_irqsave(&drvdata->spinlock, flags); - - CS_UNLOCK(drvdata->base); - trace_id = readl_relaxed(drvdata->base + TRCTRACEIDR); - trace_id &= ETM_TRACEID_MASK; - CS_LOCK(drvdata->base); - - spin_unlock_irqrestore(&drvdata->spinlock, flags); - pm_runtime_put(drvdata->dev); - - return trace_id; + return drvdata->trcid; } static void etm4_enable_hw(void *info) |