cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

rohm-generic.h (2700B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/* Copyright (C) 2018 ROHM Semiconductors */
      3
      4#ifndef __LINUX_MFD_ROHM_H__
      5#define __LINUX_MFD_ROHM_H__
      6
      7#include <linux/regmap.h>
      8#include <linux/regulator/driver.h>
      9
     10enum rohm_chip_type {
     11	ROHM_CHIP_TYPE_BD9571,
     12	ROHM_CHIP_TYPE_BD9573,
     13	ROHM_CHIP_TYPE_BD9574,
     14	ROHM_CHIP_TYPE_BD9576,
     15	ROHM_CHIP_TYPE_BD71815,
     16	ROHM_CHIP_TYPE_BD71828,
     17	ROHM_CHIP_TYPE_BD71837,
     18	ROHM_CHIP_TYPE_BD71847,
     19	ROHM_CHIP_TYPE_AMOUNT
     20};
     21
     22struct rohm_regmap_dev {
     23	struct device *dev;
     24	struct regmap *regmap;
     25};
     26
     27#define ROHM_DVS_LEVEL_RUN		BIT(0)
     28#define ROHM_DVS_LEVEL_IDLE		BIT(1)
     29#define ROHM_DVS_LEVEL_SUSPEND		BIT(2)
     30#define ROHM_DVS_LEVEL_LPSR		BIT(3)
     31#define ROHM_DVS_LEVEL_SNVS		BIT(4)
     32#define ROHM_DVS_LEVEL_VALID_AMOUNT	5
     33#define ROHM_DVS_LEVEL_UNKNOWN		0
     34
     35/**
     36 * struct rohm_dvs_config - dynamic voltage scaling register descriptions
     37 *
     38 * @level_map:		bitmap representing supported run-levels for this
     39 *			regulator
     40 * @run_reg:		register address for regulator config at 'run' state
     41 * @run_mask:		value mask for regulator voltages at 'run' state
     42 * @run_on_mask:	enable mask for regulator at 'run' state
     43 * @idle_reg:		register address for regulator config at 'idle' state
     44 * @idle_mask:		value mask for regulator voltages at 'idle' state
     45 * @idle_on_mask:	enable mask for regulator at 'idle' state
     46 * @suspend_reg:	register address for regulator config at 'suspend' state
     47 * @suspend_mask:	value mask for regulator voltages at 'suspend' state
     48 * @suspend_on_mask:	enable mask for regulator at 'suspend' state
     49 * @lpsr_reg:		register address for regulator config at 'lpsr' state
     50 * @lpsr_mask:		value mask for regulator voltages at 'lpsr' state
     51 * @lpsr_on_mask:	enable mask for regulator at 'lpsr' state
     52 *
     53 * Description of ROHM PMICs voltage configuration registers for different
     54 * system states. This is used to correctly configure the PMIC at startup
     55 * based on values read from DT.
     56 */
     57struct rohm_dvs_config {
     58	uint64_t level_map;
     59	unsigned int run_reg;
     60	unsigned int run_mask;
     61	unsigned int run_on_mask;
     62	unsigned int idle_reg;
     63	unsigned int idle_mask;
     64	unsigned int idle_on_mask;
     65	unsigned int suspend_reg;
     66	unsigned int suspend_mask;
     67	unsigned int suspend_on_mask;
     68	unsigned int lpsr_reg;
     69	unsigned int lpsr_mask;
     70	unsigned int lpsr_on_mask;
     71	unsigned int snvs_reg;
     72	unsigned int snvs_mask;
     73	unsigned int snvs_on_mask;
     74};
     75
     76#if IS_ENABLED(CONFIG_REGULATOR_ROHM)
     77int rohm_regulator_set_dvs_levels(const struct rohm_dvs_config *dvs,
     78				  struct device_node *np,
     79				  const struct regulator_desc *desc,
     80				  struct regmap *regmap);
     81
     82int rohm_regulator_set_voltage_sel_restricted(struct regulator_dev *rdev,
     83					      unsigned int sel);
     84#endif
     85
     86#endif