#define _ULTRASOC_SMB_H
#include <linux/miscdevice.h>
-#include <linux/mutex.h>
+#include <linux/spinlock.h>
/* Offset of SMB global registers */
#define SMB_GLB_CFG_REG 0x00
* @csdev: Component vitals needed by the framework.
* @sdb: Data buffer for SMB.
* @miscdev: Specifics to handle "/dev/xyz.smb" entry.
- * @mutex: Control data access to one at a time.
+ * @spinlock: Control data access to one at a time.
* @reading: Synchronise user space access to SMB buffer.
* @pid: Process ID of the process being monitored by the
* session that is using this component.
struct coresight_device *csdev;
struct smb_data_buffer sdb;
struct miscdevice miscdev;
- struct mutex mutex;
+ spinlock_t spinlock;
bool reading;
pid_t pid;
enum cs_mode mode;