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author | Chunyan Zhang <chunyan.zhang@spreadtrum.com> | 2017-12-07 20:57:09 +0800 |
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committer | Stephen Boyd <sboyd@codeaurora.org> | 2017-12-21 15:00:52 -0800 |
commit | 4fcba55cc621795caee6ba3503dbe70d10e268b2 (patch) | |
tree | 2247517c443cd2372d2f77843ecd4e1f3096a8ed /drivers/clk/sprd/composite.h | |
parent | e3f05d3b18e6cfbddaed687b4a57c280015acc1f (diff) | |
download | linux-stable-4fcba55cc621795caee6ba3503dbe70d10e268b2.tar.gz linux-stable-4fcba55cc621795caee6ba3503dbe70d10e268b2.tar.bz2 linux-stable-4fcba55cc621795caee6ba3503dbe70d10e268b2.zip |
clk: sprd: add composite clock support
This patch introduced composite driver for Spreadtrum's SoCs. The
functions of this composite clock simply consist of divider and
mux clocks.
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/sprd/composite.h')
-rw-r--r-- | drivers/clk/sprd/composite.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/clk/sprd/composite.h b/drivers/clk/sprd/composite.h new file mode 100644 index 000000000000..0984e9e252dc --- /dev/null +++ b/drivers/clk/sprd/composite.h @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Spreadtrum composite clock driver +// +// Copyright (C) 2017 Spreadtrum, Inc. +// Author: Chunyan Zhang <chunyan.zhang@spreadtrum.com> + +#ifndef _SPRD_COMPOSITE_H_ +#define _SPRD_COMPOSITE_H_ + +#include "common.h" +#include "mux.h" +#include "div.h" + +struct sprd_comp { + struct sprd_mux_ssel mux; + struct sprd_div_internal div; + struct sprd_clk_common common; +}; + +#define SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, _table, \ + _mshift, _mwidth, _dshift, _dwidth, _flags) \ + struct sprd_comp _struct = { \ + .mux = _SPRD_MUX_CLK(_mshift, _mwidth, _table), \ + .div = _SPRD_DIV_CLK(_dshift, _dwidth), \ + .common = { \ + .regmap = NULL, \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_PARENTS(_name, \ + _parent, \ + &sprd_comp_ops, \ + _flags), \ + } \ + } + +#define SPRD_COMP_CLK(_struct, _name, _parent, _reg, _mshift, \ + _mwidth, _dshift, _dwidth, _flags) \ + SPRD_COMP_CLK_TABLE(_struct, _name, _parent, _reg, \ + NULL, _mshift, _mwidth, \ + _dshift, _dwidth, _flags) + +static inline struct sprd_comp *hw_to_sprd_comp(const struct clk_hw *hw) +{ + struct sprd_clk_common *common = hw_to_sprd_clk_common(hw); + + return container_of(common, struct sprd_comp, common); +} + +extern const struct clk_ops sprd_comp_ops; + +#endif /* _SPRD_COMPOSITE_H_ */ |