STM32_DMA3_CLLR
offset = STM32_DMA3_CLLR(id);
u32 cllr = readl_relaxed(ddata->base + STM32_DMA3_CLLR(chan->id));
writel_relaxed(hwdesc->cllr, ddata->base + STM32_DMA3_CLLR(id));
cllr = readl_relaxed(ddata->base + STM32_DMA3_CLLR(chan->id));