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-rw-r--r--drivers/hwtracing/coresight/coresight-cti-core.c14
-rw-r--r--drivers/hwtracing/coresight/coresight-cti-sysfs.c2
-rw-r--r--drivers/hwtracing/coresight/coresight-cti.h2
3 files changed, 9 insertions, 9 deletions
diff --git a/drivers/hwtracing/coresight/coresight-cti-core.c b/drivers/hwtracing/coresight/coresight-cti-core.c
index 838872f2484d..277c890a1f1f 100644
--- a/drivers/hwtracing/coresight/coresight-cti-core.c
+++ b/drivers/hwtracing/coresight/coresight-cti-core.c
@@ -107,12 +107,12 @@ static int cti_enable_hw(struct cti_drvdata *drvdata)
cti_write_all_hw_regs(drvdata);
config->hw_enabled = true;
- atomic_inc(&drvdata->config.enable_req_count);
+ drvdata->config.enable_req_count++;
spin_unlock_irqrestore(&drvdata->spinlock, flags);
return rc;
cti_state_unchanged:
- atomic_inc(&drvdata->config.enable_req_count);
+ drvdata->config.enable_req_count++;
/* cannot enable due to error */
cti_err_not_enabled:
@@ -129,7 +129,7 @@ static void cti_cpuhp_enable_hw(struct cti_drvdata *drvdata)
config->hw_powered = true;
/* no need to do anything if no enable request */
- if (!atomic_read(&drvdata->config.enable_req_count))
+ if (!drvdata->config.enable_req_count)
goto cti_hp_not_enabled;
/* try to claim the device */
@@ -156,13 +156,13 @@ static int cti_disable_hw(struct cti_drvdata *drvdata)
spin_lock(&drvdata->spinlock);
/* don't allow negative refcounts, return an error */
- if (!atomic_read(&drvdata->config.enable_req_count)) {
+ if (!drvdata->config.enable_req_count) {
ret = -EINVAL;
goto cti_not_disabled;
}
/* check refcount - disable on 0 */
- if (atomic_dec_return(&drvdata->config.enable_req_count) > 0)
+ if (--drvdata->config.enable_req_count > 0)
goto cti_not_disabled;
/* no need to do anything if disabled or cpu unpowered */
@@ -239,7 +239,7 @@ static void cti_set_default_config(struct device *dev,
/* Most regs default to 0 as zalloc'ed except...*/
config->trig_filter_enable = true;
config->ctigate = GENMASK(config->nr_ctm_channels - 1, 0);
- atomic_set(&config->enable_req_count, 0);
+ config->enable_req_count = 0;
}
/*
@@ -696,7 +696,7 @@ static int cti_cpu_pm_notify(struct notifier_block *nb, unsigned long cmd,
drvdata->config.hw_enabled = false;
/* check enable reference count to enable HW */
- if (atomic_read(&drvdata->config.enable_req_count)) {
+ if (drvdata->config.enable_req_count) {
/* check we can claim the device as we re-power */
if (coresight_claim_device(csdev))
goto cti_notify_exit;
diff --git a/drivers/hwtracing/coresight/coresight-cti-sysfs.c b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
index 71e7a8266bb3..e528cff9d4e2 100644
--- a/drivers/hwtracing/coresight/coresight-cti-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-cti-sysfs.c
@@ -84,8 +84,8 @@ static ssize_t enable_show(struct device *dev,
bool enabled, powered;
struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent);
- enable_req = atomic_read(&drvdata->config.enable_req_count);
spin_lock(&drvdata->spinlock);
+ enable_req = drvdata->config.enable_req_count;
powered = drvdata->config.hw_powered;
enabled = drvdata->config.hw_enabled;
spin_unlock(&drvdata->spinlock);
diff --git a/drivers/hwtracing/coresight/coresight-cti.h b/drivers/hwtracing/coresight/coresight-cti.h
index acf7b545e6b9..8b106b13a244 100644
--- a/drivers/hwtracing/coresight/coresight-cti.h
+++ b/drivers/hwtracing/coresight/coresight-cti.h
@@ -141,7 +141,7 @@ struct cti_config {
int nr_trig_max;
/* cti enable control */
- atomic_t enable_req_count;
+ int enable_req_count;
bool hw_enabled;
bool hw_powered;