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Diffstat (limited to 'drivers/clk/actions/owl-gate.h')
-rw-r--r--drivers/clk/actions/owl-gate.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/clk/actions/owl-gate.h b/drivers/clk/actions/owl-gate.h
new file mode 100644
index 0000000000..c2f161c93f
--- /dev/null
+++ b/drivers/clk/actions/owl-gate.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+//
+// OWL gate 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_GATE_H_
+#define _OWL_GATE_H_
+
+#include "owl-common.h"
+
+struct owl_gate_hw {
+ u32 reg;
+ u8 bit_idx;
+ u8 gate_flags;
+};
+
+struct owl_gate {
+ struct owl_gate_hw gate_hw;
+ struct owl_clk_common common;
+};
+
+#define OWL_GATE_HW(_reg, _bit_idx, _gate_flags) \
+ { \
+ .reg = _reg, \
+ .bit_idx = _bit_idx, \
+ .gate_flags = _gate_flags, \
+ }
+
+#define OWL_GATE(_struct, _name, _parent, _reg, \
+ _bit_idx, _gate_flags, _flags) \
+ struct owl_gate _struct = { \
+ .gate_hw = OWL_GATE_HW(_reg, _bit_idx, _gate_flags), \
+ .common = { \
+ .regmap = NULL, \
+ .hw.init = CLK_HW_INIT(_name, \
+ _parent, \
+ &owl_gate_ops, \
+ _flags), \
+ } \
+ } \
+
+#define OWL_GATE_NO_PARENT(_struct, _name, _reg, \
+ _bit_idx, _gate_flags, _flags) \
+ struct owl_gate _struct = { \
+ .gate_hw = OWL_GATE_HW(_reg, _bit_idx, _gate_flags), \
+ .common = { \
+ .regmap = NULL, \
+ .hw.init = CLK_HW_INIT_NO_PARENT(_name, \
+ &owl_gate_ops, \
+ _flags), \
+ }, \
+ } \
+
+static inline struct owl_gate *hw_to_owl_gate(const struct clk_hw *hw)
+{
+ struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+ return container_of(common, struct owl_gate, common);
+}
+
+void owl_gate_set(const struct owl_clk_common *common,
+ const struct owl_gate_hw *gate_hw, bool enable);
+int owl_gate_clk_is_enabled(const struct owl_clk_common *common,
+ const struct owl_gate_hw *gate_hw);
+
+extern const struct clk_ops owl_gate_ops;
+
+#endif /* _OWL_GATE_H_ */