AMD_SPI_HID2_DMA_SIZE
op->data.nbytes > AMD_SPI_HID2_DMA_SIZE)
op->data.nbytes = clamp_val(op->data.nbytes, 0, AMD_SPI_HID2_DMA_SIZE);
amd_spi->dma_virt_addr = dmam_alloc_coherent(dev, AMD_SPI_HID2_DMA_SIZE * 2,