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Diffstat (limited to '')
| -rw-r--r-- | include/drivers/allwinner/axp.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/drivers/allwinner/axp.h b/include/drivers/allwinner/axp.h new file mode 100644 index 0000000..8b90c7f --- /dev/null +++ b/include/drivers/allwinner/axp.h @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef AXP_H +#define AXP_H + +#include <stdint.h> + +#define AXP20X_MODE_REG 0x3e +#define AXP20X_MODE_I2C 0x00 +#define AXP20X_MODE_RSB 0x7c + +#define NA 0xff + +enum { + AXP803_CHIP_ID = 0x41, + AXP805_CHIP_ID = 0x40, +}; + +struct axp_regulator { + const char *dt_name; + uint16_t min_volt; + uint16_t max_volt; + uint16_t step; + unsigned char split; + unsigned char volt_reg; + unsigned char switch_reg; + unsigned char switch_bit; +}; + +extern const uint8_t axp_chip_id; +extern const char *const axp_compatible; +extern const struct axp_regulator axp_regulators[]; + +/* + * Since the PMIC can be connected to multiple bus types, + * low-level read/write functions must be provided by the platform + */ +int axp_read(uint8_t reg); +int axp_write(uint8_t reg, uint8_t val); +int axp_clrsetbits(uint8_t reg, uint8_t clr_mask, uint8_t set_mask); +#define axp_clrbits(reg, clr_mask) axp_clrsetbits(reg, clr_mask, 0) +#define axp_setbits(reg, set_mask) axp_clrsetbits(reg, 0, set_mask) + +int axp_check_id(void); +void axp_power_off(void); + +#if SUNXI_SETUP_REGULATORS == 1 +void axp_setup_regulators(const void *fdt); +#else +static inline void axp_setup_regulators(const void *fdt) +{ +} +#endif + +#endif /* AXP_H */ |