v4.19.13 snapshot.
diff --git a/drivers/clk/sprd/common.h b/drivers/clk/sprd/common.h
new file mode 100644
index 0000000..abd9ff5
--- /dev/null
+++ b/drivers/clk/sprd/common.h
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Spreadtrum clock infrastructure
+//
+// Copyright (C) 2017 Spreadtrum, Inc.
+// Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
+
+#ifndef _SPRD_CLK_COMMON_H_
+#define _SPRD_CLK_COMMON_H_
+
+#include <linux/clk-provider.h>
+#include <linux/of_platform.h>
+#include <linux/regmap.h>
+
+struct device_node;
+
+struct sprd_clk_common {
+ struct regmap *regmap;
+ u32 reg;
+ struct clk_hw hw;
+};
+
+struct sprd_clk_desc {
+ struct sprd_clk_common **clk_clks;
+ unsigned long num_clk_clks;
+ struct clk_hw_onecell_data *hw_clks;
+};
+
+static inline struct sprd_clk_common *
+ hw_to_sprd_clk_common(const struct clk_hw *hw)
+{
+ return container_of(hw, struct sprd_clk_common, hw);
+}
+int sprd_clk_regmap_init(struct platform_device *pdev,
+ const struct sprd_clk_desc *desc);
+int sprd_clk_probe(struct device *dev, struct clk_hw_onecell_data *clkhw);
+
+#endif /* _SPRD_CLK_COMMON_H_ */