STM32_DMA3_CDAR
offset = STM32_DMA3_CDAR(id);
u32 cdar = readl_relaxed(ddata->base + STM32_DMA3_CDAR(chan->id));
writel_relaxed(hwdesc->cdar, ddata->base + STM32_DMA3_CDAR(id));
cdar = readl_relaxed(ddata->base + STM32_DMA3_CDAR(chan->id));