STEDMA40_MAX_SEG_SIZE
u32 seg_max = ALIGN(STEDMA40_MAX_SEG_SIZE * min_w, max_w);
if (seg_max > STEDMA40_MAX_SEG_SIZE)
dma_set_max_seg_size(base->dev, STEDMA40_MAX_SEG_SIZE);
u32 seg_max = ALIGN(STEDMA40_MAX_SEG_SIZE * min_w, max_w);
if (seg_max > STEDMA40_MAX_SEG_SIZE)
BUG_ON((data_size / data_width) > STEDMA40_MAX_SEG_SIZE);