Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (c) 2017 Chen-Yu Tsai. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _CCU_SDM_H
|
|
#define _CCU_SDM_H
|
|
|
|
#include <linux/clk-provider.h>
|
|
|
|
#include "ccu_common.h"
|
|
|
|
struct ccu_sdm_setting {
|
|
unsigned long rate;
|
|
|
|
/*
|
|
* XXX We don't know what the step and bottom register fields
|
|
* mean. Just copy the whole register value from the vendor
|
|
* kernel for now.
|
|
*/
|
|
u32 pattern;
|
|
|
|
/*
|
|
* M and N factors here should be the values used in
|
|
* calculation, not the raw values written to registers
|
|
*/
|
|
u32 m;
|
|
u32 n;
|
|
};
|
|
|
|
struct ccu_sdm_internal {
|
|
struct ccu_sdm_setting *table;
|
|
u32 table_size;
|
|
/* early SoCs don't have the SDM enable bit in the PLL register */
|
|
u32 enable;
|
|
/* second enable bit in tuning register */
|
|
u32 tuning_enable;
|
|
u16 tuning_reg;
|
|
};
|
|
|
|
#define _SUNXI_CCU_SDM(_table, _enable, \
|
|
_reg, _reg_enable) \
|
|
{ \
|
|
.table = _table, \
|
|
.table_size = ARRAY_SIZE(_table), \
|
|
.enable = _enable, \
|
|
.tuning_enable = _reg_enable, \
|
|
.tuning_reg = _reg, \
|
|
}
|
|
|
|
bool ccu_sdm_helper_is_enabled(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm);
|
|
void ccu_sdm_helper_enable(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm,
|
|
unsigned long rate);
|
|
void ccu_sdm_helper_disable(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm);
|
|
|
|
bool ccu_sdm_helper_has_rate(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm,
|
|
unsigned long rate);
|
|
|
|
unsigned long ccu_sdm_helper_read_rate(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm,
|
|
u32 m, u32 n);
|
|
|
|
int ccu_sdm_helper_get_factors(struct ccu_common *common,
|
|
struct ccu_sdm_internal *sdm,
|
|
unsigned long rate,
|
|
unsigned long *m, unsigned long *n);
|
|
|
|
#endif
|