stm32_dma_read
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
ndtr = stm32_dma_read(dmadev, STM32_DMA_SNDTR(chan->id));
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
dma_smar = stm32_dma_read(dmadev, STM32_DMA_SM0AR(id));
dma_smar = stm32_dma_read(dmadev, STM32_DMA_SM1AR(id));
scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
dma_isr = stm32_dma_read(dmadev, STM32_DMA_ISR(chan->id));
dma_scr = stm32_dma_read(dmadev, reg);
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
dma_sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
u32 scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
u32 ndtr = stm32_dma_read(dmadev, STM32_DMA_SNDTR(chan->id));
u32 spar = stm32_dma_read(dmadev, STM32_DMA_SPAR(chan->id));
u32 sm0ar = stm32_dma_read(dmadev, STM32_DMA_SM0AR(chan->id));
u32 sm1ar = stm32_dma_read(dmadev, STM32_DMA_SM1AR(chan->id));
u32 sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
stm32_dma_read(dmadev, STM32_DMA_SM0AR(id)));
stm32_dma_read(dmadev, STM32_DMA_SM1AR(id)));
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
chan->chan_reg.dma_sndtr = stm32_dma_read(dmadev, STM32_DMA_SNDTR(chan->id));
dma_scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));
scr = stm32_dma_read(dmadev, STM32_DMA_SCR(chan->id));
sfcr = stm32_dma_read(dmadev, STM32_DMA_SFCR(chan->id));
scr = stm32_dma_read(dmadev, STM32_DMA_SCR(id));