1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/misc/rsmu_cdev.h b/drivers/misc/rsmu_cdev.h
new file mode 100644
index 000000000000..3ced817ce3df
--- /dev/null
+++ b/drivers/misc/rsmu_cdev.h
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * This driver is developed for the IDT ClockMatrix(TM) of
+ * timing and synchronization devices.
+ *
+ * Copyright (C) 2019 Integrated Device Technology, Inc., a Renesas Company.
+ */
+#ifndef __LINUX_RSMU_CDEV_H
+#define __LINUX_RSMU_CDEV_H
+
+#include <linux/cdev.h>
+
+struct rsmu_ops;
+
+/**
+ * struct rsmu_cdev - Driver data for RSMU character device
+ * @dev: pointer to platform device
+ * @mfd: pointer to MFD device
+ * @rsmu_cdev: character device handle
+ * @lock: mutex to protect operations from being interrupted
+ * @type: rsmu device type
+ * @ops: rsmu device methods
+ * @index: rsmu device index
+ */
+struct rsmu_cdev {
+	struct device *dev;
+	struct device *mfd;
+	struct cdev rsmu_cdev;
+	struct mutex *lock;
+	enum rsmu_type type;
+	struct rsmu_ops *ops;
+	u8 index;
+};
+
+extern struct rsmu_ops cm_ops;
+extern struct rsmu_ops sabre_ops;
+
+struct rsmu_ops {
+	enum rsmu_type type;
+	int (*set_combomode)(struct rsmu_cdev *rsmu, u8 dpll, u8 mode);
+	int (*get_dpll_state)(struct rsmu_cdev *rsmu, u8 dpll, u8 *state);
+	int (*get_dpll_ffo)(struct rsmu_cdev *rsmu, u8 dpll,
+			    struct rsmu_get_ffo *ffo);
+};
+
+/**
+ * Enumerated type listing DPLL combination modes
+ */
+enum rsmu_dpll_combomode {
+	E_COMBOMODE_CURRENT = 0,
+	E_COMBOMODE_FASTAVG,
+	E_COMBOMODE_SLOWAVG,
+	E_COMBOMODE_HOLDOVER,
+	E_COMBOMODE_MAX
+};
+
+/**
+ * An id used to identify the respective child class states.
+ */
+enum rsmu_class_state {
+	E_SRVLOINITIALSTATE = 0,
+	E_SRVLOUNQUALIFIEDSTATE = 1,
+	E_SRVLOLOCKACQSTATE = 2,
+	E_SRVLOFREQUENCYLOCKEDSTATE = 3,
+	E_SRVLOTIMELOCKEDSTATE = 4,
+	E_SRVLOHOLDOVERINSPECSTATE = 5,
+	E_SRVLOHOLDOVEROUTOFSPECSTATE = 6,
+	E_SRVLOFREERUNSTATE = 7,
+	E_SRVNUMBERLOSTATES = 8,
+	E_SRVLOSTATEINVALID = 9,
+};
+#endif