REG_CR1
ret = regmap_read(state->regmap, REG_CR1, ®val);
ret = regmap_read(state->regmap, REG_CR1, ®val);
REG_CR1, CR1_DRV,
return regmap_update_bits(state->regmap, REG_CR1, CR1_TEMP_SRC, val);
ret = regmap_read(state->regmap, REG_CR1, ®val);
ret = regmap_clear_bits(state->regmap, REG_CR1, CR1_HYST);
ret = regmap_set_bits(state->regmap, REG_CR1, CR1_HYST);