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a83387729a
Add support for Actions Semi mux clock together with helper functions to be used in composite clock. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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//
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// OWL mux clock driver
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//
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// Copyright (c) 2014 Actions Semi Inc.
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// Author: David Liu <liuwei@actions-semi.com>
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//
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// Copyright (c) 2018 Linaro Ltd.
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// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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#ifndef _OWL_MUX_H_
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#define _OWL_MUX_H_
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#include "owl-common.h"
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struct owl_mux_hw {
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u32 reg;
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u8 shift;
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u8 width;
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};
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struct owl_mux {
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struct owl_mux_hw mux_hw;
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struct owl_clk_common common;
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};
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#define OWL_MUX_HW(_reg, _shift, _width) \
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{ \
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.reg = _reg, \
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.shift = _shift, \
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.width = _width, \
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}
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#define OWL_MUX(_struct, _name, _parents, _reg, \
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_shift, _width, _flags) \
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struct owl_mux _struct = { \
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.mux_hw = OWL_MUX_HW(_reg, _shift, _width), \
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.common = { \
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.regmap = NULL, \
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.hw.init = CLK_HW_INIT_PARENTS(_name, \
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_parents, \
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&owl_mux_ops, \
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_flags), \
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}, \
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}
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static inline struct owl_mux *hw_to_owl_mux(const struct clk_hw *hw)
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{
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struct owl_clk_common *common = hw_to_owl_clk_common(hw);
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return container_of(common, struct owl_mux, common);
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}
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u8 owl_mux_helper_get_parent(const struct owl_clk_common *common,
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const struct owl_mux_hw *mux_hw);
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int owl_mux_helper_set_parent(const struct owl_clk_common *common,
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struct owl_mux_hw *mux_hw, u8 index);
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extern const struct clk_ops owl_mux_ops;
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#endif /* _OWL_MUX_H_ */
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