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Diffstat (limited to '')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_gate.h | 127 |
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 000000000..dc05ce067 --- /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_ */ |