TIM_CR2_MMS2
regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2,
regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
cr2 = (cr2 & TIM_CR2_MMS2) >> TIM_CR2_MMS2_SHIFT;
mask = TIM_CR2_MMS2;
regmap_set_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);