Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "bmp280.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) static bool bmp180_is_writeable_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	case BMP280_REG_CTRL_MEAS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	case BMP280_REG_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static bool bmp180_is_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	case BMP180_REG_OUT_XLSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	case BMP180_REG_OUT_LSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	case BMP180_REG_OUT_MSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	case BMP280_REG_CTRL_MEAS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) const struct regmap_config bmp180_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	.max_register = BMP180_REG_OUT_XLSB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	.cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	.writeable_reg = bmp180_is_writeable_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	.volatile_reg = bmp180_is_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) EXPORT_SYMBOL(bmp180_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	case BMP280_REG_CONFIG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	case BMP280_REG_CTRL_HUMIDITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	case BMP280_REG_CTRL_MEAS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	case BMP280_REG_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	switch (reg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	case BMP280_REG_HUMIDITY_LSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	case BMP280_REG_HUMIDITY_MSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	case BMP280_REG_TEMP_XLSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	case BMP280_REG_TEMP_LSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	case BMP280_REG_TEMP_MSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	case BMP280_REG_PRESS_XLSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	case BMP280_REG_PRESS_LSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	case BMP280_REG_PRESS_MSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	case BMP280_REG_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) const struct regmap_config bmp280_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 	.max_register = BMP280_REG_HUMIDITY_LSB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 	.cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	.writeable_reg = bmp280_is_writeable_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 	.volatile_reg = bmp280_is_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) EXPORT_SYMBOL(bmp280_regmap_config);