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-rw-r--r--drivers/clk/sunxi-ng/ccu_gate.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_gate.h b/drivers/clk/sunxi-ng/ccu_gate.h
new file mode 100644
index 0000000000..dc05ce0673
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu_gate.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2016 Maxime Ripard. All rights reserved.
+ */
+
+#ifndef _CCU_GATE_H_
+#define _CCU_GATE_H_
+
+#include <linux/clk-provider.h>
+
+#include "ccu_common.h"
+
+struct ccu_gate {
+ u32 enable;
+
+ struct ccu_common common;
+};
+
+#define SUNXI_CCU_GATE(_struct, _name, _parent, _reg, _gate, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .hw.init = CLK_HW_INIT(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+#define SUNXI_CCU_GATE_HW(_struct, _name, _parent, _reg, _gate, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .hw.init = CLK_HW_INIT_HW(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+#define SUNXI_CCU_GATE_FW(_struct, _name, _parent, _reg, _gate, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .hw.init = CLK_HW_INIT_FW_NAME(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+/*
+ * The following macros allow the re-use of the data structure
+ * holding the parent info.
+ */
+#define SUNXI_CCU_GATE_HWS(_struct, _name, _parent, _reg, _gate, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .hw.init = CLK_HW_INIT_HWS(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+#define SUNXI_CCU_GATE_HWS_WITH_PREDIV(_struct, _name, _parent, _reg, \
+ _gate, _prediv, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .prediv = _prediv, \
+ .features = CCU_FEATURE_ALL_PREDIV, \
+ .hw.init = CLK_HW_INIT_HWS(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+#define SUNXI_CCU_GATE_DATA(_struct, _name, _data, _reg, _gate, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .hw.init = \
+ CLK_HW_INIT_PARENTS_DATA(_name, \
+ _data, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+#define SUNXI_CCU_GATE_DATA_WITH_PREDIV(_struct, _name, _parent, _reg, \
+ _gate, _prediv, _flags) \
+ struct ccu_gate _struct = { \
+ .enable = _gate, \
+ .common = { \
+ .reg = _reg, \
+ .prediv = _prediv, \
+ .features = CCU_FEATURE_ALL_PREDIV, \
+ .hw.init = CLK_HW_INIT_PARENTS_DATA(_name, \
+ _parent, \
+ &ccu_gate_ops, \
+ _flags), \
+ } \
+ }
+
+static inline struct ccu_gate *hw_to_ccu_gate(struct clk_hw *hw)
+{
+ struct ccu_common *common = hw_to_ccu_common(hw);
+
+ return container_of(common, struct ccu_gate, common);
+}
+
+void ccu_gate_helper_disable(struct ccu_common *common, u32 gate);
+int ccu_gate_helper_enable(struct ccu_common *common, u32 gate);
+int ccu_gate_helper_is_enabled(struct ccu_common *common, u32 gate);
+
+extern const struct clk_ops ccu_gate_ops;
+
+#endif /* _CCU_GATE_H_ */