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/linux/Documentation/arch/arm/stm32/
H A Dstm32-dma-mdma-chaining.rst228 * Assuming sram_dma_buf and sram_period, respectively the memory
240 if (sg_dma_len(s) > sram_period)
241 new_nents += DIV_ROUND_UP(sg_dma_len(s), sram_period);
252 sg_dma_len(s) = min(sg_dma_len(_sgl), sram_period);
260 s->dma_address += sram_period;
272 size_t bytes = min_t(size_t, len, sram_period);