diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/clk/sunxi-ng/ccu_div.h | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu_div.h')
-rw-r--r-- | drivers/clk/sunxi-ng/ccu_div.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_div.h b/drivers/clk/sunxi-ng/ccu_div.h new file mode 100644 index 000000000..653ade576 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu_div.h @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2016 Maxime Ripard. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _CCU_DIV_H_ +#define _CCU_DIV_H_ + +#include <linux/clk-provider.h> + +#include "ccu_common.h" +#include "ccu_mux.h" + +struct _ccu_div { + u8 shift; + u8 width; + + u32 flags; + + struct clk_div_table *table; +}; + +#define _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, _flags) \ + { \ + .shift = _shift, \ + .width = _width, \ + .flags = _flags, \ + .table = _table, \ + } + +#define _SUNXI_CCU_DIV_FLAGS(_shift, _width, _flags) \ + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, _flags) + +#define _SUNXI_CCU_DIV_TABLE(_shift, _width, _table) \ + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, _table, 0) + +#define _SUNXI_CCU_DIV(_shift, _width) \ + _SUNXI_CCU_DIV_TABLE_FLAGS(_shift, _width, NULL, 0) + +struct ccu_div { + u32 enable; + + struct _ccu_div div; + struct ccu_mux_internal mux; + struct ccu_common common; +}; + +#define SUNXI_CCU_DIV_TABLE_WITH_GATE(_struct, _name, _parent, _reg, \ + _shift, _width, \ + _table, _gate, _flags) \ + struct ccu_div _struct = { \ + .div = _SUNXI_CCU_DIV_TABLE(_shift, _width, \ + _table), \ + .enable = _gate, \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_div_ops, \ + _flags), \ + } \ + } + + +#define SUNXI_CCU_DIV_TABLE(_struct, _name, _parent, _reg, \ + _shift, _width, \ + _table, _flags) \ + SUNXI_CCU_DIV_TABLE_WITH_GATE(_struct, _name, _parent, _reg, \ + _shift, _width, _table, 0, \ + _flags) + +#define SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg, \ + _mshift, _mwidth, _muxshift, _muxwidth, \ + _gate, _flags) \ + struct ccu_div _struct = { \ + .enable = _gate, \ + .div = _SUNXI_CCU_DIV(_mshift, _mwidth), \ + .mux = SUNXI_CLK_MUX(_muxshift, _muxwidth), \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT_PARENTS(_name, \ + _parents, \ + &ccu_div_ops, \ + _flags), \ + }, \ + } + +#define SUNXI_CCU_M_WITH_MUX(_struct, _name, _parents, _reg, \ + _mshift, _mwidth, _muxshift, _muxwidth, \ + _flags) \ + SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg, \ + _mshift, _mwidth, _muxshift, _muxwidth, \ + 0, _flags) + + +#define SUNXI_CCU_M_WITH_GATE(_struct, _name, _parent, _reg, \ + _mshift, _mwidth, _gate, \ + _flags) \ + struct ccu_div _struct = { \ + .enable = _gate, \ + .div = _SUNXI_CCU_DIV(_mshift, _mwidth), \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_div_ops, \ + _flags), \ + }, \ + } + +#define SUNXI_CCU_M(_struct, _name, _parent, _reg, _mshift, _mwidth, \ + _flags) \ + SUNXI_CCU_M_WITH_GATE(_struct, _name, _parent, _reg, \ + _mshift, _mwidth, 0, _flags) + +static inline struct ccu_div *hw_to_ccu_div(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_div, common); +} + +extern const struct clk_ops ccu_div_ops; + +#endif /* _CCU_DIV_H_ */ |