clk/sunxi-ng/ccu_frac.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
0004  */
0005
0006 #ifndef _CCU_FRAC_H_
0007 #define _CCU_FRAC_H_
0008
0009 #include <linux/clk-provider.h>
0010
0011 #include "ccu_common.h"
0012
0013 struct ccu_frac_internal {
0014     u32     enable;
0015     u32     select;
0016
0017     unsigned long   rates[2];
0018 };
0019
0020 #define _SUNXI_CCU_FRAC(_enable, _select, _rate1, _rate2)       \
0021     {                               \
0022         .enable = _enable,                  \
0023         .select = _select,                  \
0024         .rates = { _rate1, _rate2 },                \
0025     }
0026
0027 bool ccu_frac_helper_is_enabled(struct ccu_common *common,
0028                 struct ccu_frac_internal *cf);
0029 void ccu_frac_helper_enable(struct ccu_common *common,
0030                 struct ccu_frac_internal *cf);
0031 void ccu_frac_helper_disable(struct ccu_common *common,
0032                  struct ccu_frac_internal *cf);
0033
0034 bool ccu_frac_helper_has_rate(struct ccu_common *common,
0035                   struct ccu_frac_internal *cf,
0036                   unsigned long rate);
0037
0038 unsigned long ccu_frac_helper_read_rate(struct ccu_common *common,
0039                     struct ccu_frac_internal *cf);
0040
0041 int ccu_frac_helper_set_rate(struct ccu_common *common,
0042                  struct ccu_frac_internal *cf,
0043                  unsigned long rate, u32 lock);
0044
0045 #endif /* _CCU_FRAC_H_ */