STM32_MDMA_CCR_EN
stm32_mdma_set_bits(dmadev, STM32_MDMA_CCR(id), STM32_MDMA_CCR_EN);
if (!chan->desc || (stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id)) & STM32_MDMA_CCR_EN))
stm32_mdma_set_bits(dmadev, reg, STM32_MDMA_CCR_EN);
if (!(ccr & STM32_MDMA_CCR_EN))
if (ccr & STM32_MDMA_CCR_EN) {
if (ccr & STM32_MDMA_CCR_EN) {
stm32_mdma_clr_bits(dmadev, reg, STM32_MDMA_CCR_EN);
ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id)) & ~STM32_MDMA_CCR_EN;
ccr = stm32_mdma_read(dmadev, STM32_MDMA_CCR(chan->id)) & ~STM32_MDMA_CCR_EN;