TIM_CR2
regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2,
regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS,
regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS);
regmap_read(priv->regmap, TIM_CR2, &cr2);
regmap_update_bits(priv->regmap, TIM_CR2, mask,
regmap_set_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
regmap_read(priv->regmap, TIM_CR2, &val);
regmap_clear_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2);
regmap_read(priv->regmap, TIM_CR2, &priv->bak.cr2);
regmap_write(priv->regmap, TIM_CR2, priv->bak.cr2);