> + */
> +static void zynqmp_dma_update_desc_to_ctrlr(struct zynqmp_dma_chan *chan,
> + struct zynqmp_dma_desc_sw *desc)
> +{
> + dma_addr_t addr;
> +
> + addr = desc->src_p;
> + writel(addr, chan->regs + ZYNQMP_DMA_SRC_START_LSB);
> + writel(upper_32_bits(addr), chan->regs + ZYNQMP_DMA_SRC_START_MSB);
Can we combine the two writes to a 64bit write.
It may be helpful on 64-bit systems.
> + addr = desc->dst_p;
> + writel(addr, chan->regs + ZYNQMP_DMA_DST_START_LSB);
> + writel(upper_32_bits(addr), chan->regs + ZYNQMP_DMA_DST_START_MSB);
> +}
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