From df6561e60244c0283340286664b0baf67e846599 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Wed, 29 Jun 2016 21:05:32 +0200 Subject: clk: sunxi-ng: Add N-K-M Factor clock Introduce support for clocks that multiply and divide using two linear multipliers and one linear divider. Signed-off-by: Maxime Ripard Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/20160629190535.11855-12-maxime.ripard@free-electrons.com --- drivers/clk/sunxi-ng/ccu_nkm.h | 68 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 drivers/clk/sunxi-ng/ccu_nkm.h (limited to 'drivers/clk/sunxi-ng/ccu_nkm.h') diff --git a/drivers/clk/sunxi-ng/ccu_nkm.h b/drivers/clk/sunxi-ng/ccu_nkm.h new file mode 100644 index 0000000..1936ac1 --- /dev/null +++ b/drivers/clk/sunxi-ng/ccu_nkm.h @@ -0,0 +1,68 @@ +/* + * 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_NKM_H_ +#define _CCU_NKM_H_ + +#include + +#include "ccu_common.h" +#include "ccu_div.h" +#include "ccu_mult.h" + +/* + * struct ccu_nkm - Definition of an N-K-M clock + * + * Clocks based on the formula parent * N * K / M + */ +struct ccu_nkm { + u32 enable; + u32 lock; + + struct _ccu_mult n; + struct _ccu_mult k; + struct _ccu_div m; + + struct ccu_common common; +}; + +#define SUNXI_CCU_NKM_WITH_GATE_LOCK(_struct, _name, _parent, _reg, \ + _nshift, _nwidth, \ + _kshift, _kwidth, \ + _mshift, _mwidth, \ + _gate, _lock, _flags) \ + struct ccu_nkm _struct = { \ + .enable = _gate, \ + .lock = _lock, \ + .k = _SUNXI_CCU_MULT(_kshift, _kwidth), \ + .n = _SUNXI_CCU_MULT(_nshift, _nwidth), \ + .m = _SUNXI_CCU_DIV(_mshift, _mwidth), \ + .common = { \ + .reg = _reg, \ + .hw.init = CLK_HW_INIT(_name, \ + _parent, \ + &ccu_nkm_ops, \ + _flags), \ + }, \ + } + +static inline struct ccu_nkm *hw_to_ccu_nkm(struct clk_hw *hw) +{ + struct ccu_common *common = hw_to_ccu_common(hw); + + return container_of(common, struct ccu_nkm, common); +} + +extern const struct clk_ops ccu_nkm_ops; + +#endif /* _CCU_NKM_H_ */ -- cgit v1.1