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-rw-r--r--drivers/clk/actions/owl-factor.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/clk/actions/owl-factor.h b/drivers/clk/actions/owl-factor.h
new file mode 100644
index 000000000..04b89cbfd
--- /dev/null
+++ b/drivers/clk/actions/owl-factor.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+//
+// OWL factor 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_FACTOR_H_
+#define _OWL_FACTOR_H_
+
+#include "owl-common.h"
+
+struct clk_factor_table {
+ unsigned int val;
+ unsigned int mul;
+ unsigned int div;
+};
+
+struct owl_factor_hw {
+ u32 reg;
+ u8 shift;
+ u8 width;
+ u8 fct_flags;
+ struct clk_factor_table *table;
+};
+
+struct owl_factor {
+ struct owl_factor_hw factor_hw;
+ struct owl_clk_common common;
+};
+
+#define OWL_FACTOR_HW(_reg, _shift, _width, _fct_flags, _table) \
+ { \
+ .reg = _reg, \
+ .shift = _shift, \
+ .width = _width, \
+ .fct_flags = _fct_flags, \
+ .table = _table, \
+ }
+
+#define OWL_FACTOR(_struct, _name, _parent, _reg, \
+ _shift, _width, _table, _fct_flags, _flags) \
+ struct owl_factor _struct = { \
+ .factor_hw = OWL_FACTOR_HW(_reg, _shift, \
+ _width, _fct_flags, _table), \
+ .common = { \
+ .regmap = NULL, \
+ .hw.init = CLK_HW_INIT(_name, \
+ _parent, \
+ &owl_factor_ops, \
+ _flags), \
+ }, \
+ }
+
+#define div_mask(d) ((1 << ((d)->width)) - 1)
+
+static inline struct owl_factor *hw_to_owl_factor(const struct clk_hw *hw)
+{
+ struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+ return container_of(common, struct owl_factor, common);
+}
+
+long owl_factor_helper_round_rate(struct owl_clk_common *common,
+ const struct owl_factor_hw *factor_hw,
+ unsigned long rate,
+ unsigned long *parent_rate);
+
+unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common,
+ const struct owl_factor_hw *factor_hw,
+ unsigned long parent_rate);
+
+int owl_factor_helper_set_rate(const struct owl_clk_common *common,
+ const struct owl_factor_hw *factor_hw,
+ unsigned long rate,
+ unsigned long parent_rate);
+
+extern const struct clk_ops owl_factor_ops;
+
+#endif /* _OWL_FACTOR_H_ */