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-rw-r--r--drivers/clk/actions/owl-divider.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/clk/actions/owl-divider.h b/drivers/clk/actions/owl-divider.h
new file mode 100644
index 000000000000..92d3e3d23967
--- /dev/null
+++ b/drivers/clk/actions/owl-divider.h
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL divider clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#ifndef _OWL_DIVIDER_H_
+#define _OWL_DIVIDER_H_
+
+#include "owl-common.h"
+
+struct owl_divider_hw {
+ u32 reg;
+ u8 shift;
+ u8 width;
+ u8 div_flags;
+ struct clk_div_table *table;
+};
+
+struct owl_divider {
+ struct owl_divider_hw div_hw;
+ struct owl_clk_common common;
+};
+
+#define OWL_DIVIDER_HW(_reg, _shift, _width, _div_flags, _table) \
+ { \
+ .reg = _reg, \
+ .shift = _shift, \
+ .width = _width, \
+ .div_flags = _div_flags, \
+ .table = _table, \
+ }
+
+#define OWL_DIVIDER(_struct, _name, _parent, _reg, \
+ _shift, _width, _table, _div_flags, _flags) \
+ struct owl_divider _struct = { \
+ .div_hw = OWL_DIVIDER_HW(_reg, _shift, _width, \
+ _div_flags, _table), \
+ .common = { \
+ .regmap = NULL, \
+ .hw.init = CLK_HW_INIT(_name, \
+ _parent, \
+ &owl_divider_ops, \
+ _flags), \
+ }, \
+ }
+
+static inline struct owl_divider *hw_to_owl_divider(const struct clk_hw *hw)
+{
+ struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+ return container_of(common, struct owl_divider, common);
+}
+
+long owl_divider_helper_round_rate(struct owl_clk_common *common,
+ const struct owl_divider_hw *div_hw,
+ unsigned long rate,
+ unsigned long *parent_rate);
+
+unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,
+ const struct owl_divider_hw *div_hw,
+ unsigned long parent_rate);
+
+int owl_divider_helper_set_rate(const struct owl_clk_common *common,
+ const struct owl_divider_hw *div_hw,
+ unsigned long rate,
+ unsigned long parent_rate);
+
+extern const struct clk_ops owl_divider_ops;
+
+#endif /* _OWL_DIVIDER_H_ */