diff options
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index ade32a67ab63..ca910079d718 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2864,6 +2864,24 @@ static const char * const dbg_counter_strs[] = { "err_protocol", }; +static ssize_t reset_all_on_write(struct file *filp, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct scmi_debug_info *dbg = filp->private_data; + + for (int i = 0; i < SCMI_DEBUG_COUNTERS_LAST; i++) + atomic_set(&dbg->counters[i], 0); + + return count; +} + +static const struct file_operations fops_reset_counts = { + .owner = THIS_MODULE, + .open = simple_open, + .llseek = no_llseek, + .write = reset_all_on_write, +}; + static void scmi_debugfs_counters_setup(struct scmi_debug_info *dbg, struct dentry *trans) { @@ -2873,8 +2891,10 @@ static void scmi_debugfs_counters_setup(struct scmi_debug_info *dbg, counters = debugfs_create_dir("counters", trans); for (idx = 0; idx < SCMI_DEBUG_COUNTERS_LAST; idx++) - debugfs_create_atomic_t(dbg_counter_strs[idx], 0400, counters, + debugfs_create_atomic_t(dbg_counter_strs[idx], 0600, counters, &dbg->counters[idx]); + + debugfs_create_file("reset", 0200, counters, dbg, &fops_reset_counts); } static void scmi_debugfs_common_cleanup(void *d) |