mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 12:30:54 +07:00
1d42460a49
Currently ccu_frac_helper_set_rate() doesn't wait for a lock bit to be
set before returning. Because of that, unstable clock may be used.
Add a wait for lock in the helper function.
Fixes: 89a3dfb787 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
|
|
* 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_FRAC_H_
|
|
#define _CCU_FRAC_H_
|
|
|
|
#include <linux/clk-provider.h>
|
|
|
|
#include "ccu_common.h"
|
|
|
|
struct ccu_frac_internal {
|
|
u32 enable;
|
|
u32 select;
|
|
|
|
unsigned long rates[2];
|
|
};
|
|
|
|
#define _SUNXI_CCU_FRAC(_enable, _select, _rate1, _rate2) \
|
|
{ \
|
|
.enable = _enable, \
|
|
.select = _select, \
|
|
.rates = { _rate1, _rate2 }, \
|
|
}
|
|
|
|
bool ccu_frac_helper_is_enabled(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf);
|
|
void ccu_frac_helper_enable(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf);
|
|
void ccu_frac_helper_disable(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf);
|
|
|
|
bool ccu_frac_helper_has_rate(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf,
|
|
unsigned long rate);
|
|
|
|
unsigned long ccu_frac_helper_read_rate(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf);
|
|
|
|
int ccu_frac_helper_set_rate(struct ccu_common *common,
|
|
struct ccu_frac_internal *cf,
|
|
unsigned long rate, u32 lock);
|
|
|
|
#endif /* _CCU_FRAC_H_ */
|