151 	struct spi_transfer *xfer)  in spi_engine_gen_xfer()  argument
155 	if (xfer->bits_per_word <= 8)  in spi_engine_gen_xfer()
156 		len = xfer->len;  in spi_engine_gen_xfer()
157 	else if (xfer->bits_per_word <= 16)  in spi_engine_gen_xfer()
158 		len = xfer->len / 2;  in spi_engine_gen_xfer()
160 		len = xfer->len / 4;  in spi_engine_gen_xfer()
166 		if (xfer->tx_buf)  in spi_engine_gen_xfer()
168 		if (xfer->rx_buf)  in spi_engine_gen_xfer()
224 	struct spi_transfer *xfer;  in spi_engine_precompile_message()  local
226 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {  in spi_engine_precompile_message()
227 		clk_div = DIV_ROUND_UP(max_hz, xfer->speed_hz);  in spi_engine_precompile_message()
228 		xfer->effective_speed_hz = max_hz / min(clk_div, 256U);  in spi_engine_precompile_message()
237 	struct spi_transfer *xfer;  in spi_engine_compile_message()  local
254 	xfer = list_first_entry(&msg->transfers, struct spi_transfer, transfer_list);  in spi_engine_compile_message()
255 	spi_engine_gen_cs(p, dry, spi, !xfer->cs_off);  in spi_engine_compile_message()
257 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {  in spi_engine_compile_message()
258 		new_clk_div = host->max_speed_hz / xfer->effective_speed_hz;  in spi_engine_compile_message()
267 		if (bits_per_word != xfer->bits_per_word && xfer->len) {  in spi_engine_compile_message()
268 			bits_per_word = xfer->bits_per_word;  in spi_engine_compile_message()
274 		spi_engine_gen_xfer(p, dry, xfer);  in spi_engine_compile_message()
275 		spi_engine_gen_sleep(p, dry, spi_delay_to_ns(&xfer->delay, xfer),  in spi_engine_compile_message()
276 				     inst_ns, xfer->effective_speed_hz);  in spi_engine_compile_message()
278 		if (xfer->cs_change) {  in spi_engine_compile_message()
279 			if (list_is_last(&xfer->transfer_list, &msg->transfers)) {  in spi_engine_compile_message()
282 				if (!xfer->cs_off)  in spi_engine_compile_message()
286 					&xfer->cs_change_delay, xfer), inst_ns,  in spi_engine_compile_message()
287 					xfer->effective_speed_hz);  in spi_engine_compile_message()
289 				if (!list_next_entry(xfer, transfer_list)->cs_off)  in spi_engine_compile_message()
292 		} else if (!list_is_last(&xfer->transfer_list, &msg->transfers) &&  in spi_engine_compile_message()
293 			   xfer->cs_off != list_next_entry(xfer, transfer_list)->cs_off) {  in spi_engine_compile_message()
294 			spi_engine_gen_cs(p, dry, spi, xfer->cs_off);  in spi_engine_compile_message()
313 	struct spi_transfer *xfer = *_xfer;  in spi_engine_xfer_next()  local
315 	if (!xfer) {  in spi_engine_xfer_next()
316 		xfer = list_first_entry(&msg->transfers,  in spi_engine_xfer_next()
318 	} else if (list_is_last(&xfer->transfer_list, &msg->transfers)) {  in spi_engine_xfer_next()
319 		xfer = NULL;  in spi_engine_xfer_next()
321 		xfer = list_next_entry(xfer, transfer_list);  in spi_engine_xfer_next()
324 	*_xfer = xfer;  in spi_engine_xfer_next()
330 	struct spi_transfer *xfer = st->tx_xfer;  in spi_engine_tx_next()  local
333 		spi_engine_xfer_next(msg, &xfer);  in spi_engine_tx_next()
334 	} while (xfer && !xfer->tx_buf);  in spi_engine_tx_next()
336 	st->tx_xfer = xfer;  in spi_engine_tx_next()
337 	if (xfer) {  in spi_engine_tx_next()
338 		st->tx_length = xfer->len;  in spi_engine_tx_next()
339 		st->tx_buf = xfer->tx_buf;  in spi_engine_tx_next()
348 	struct spi_transfer *xfer = st->rx_xfer;  in spi_engine_rx_next()  local
351 		spi_engine_xfer_next(msg, &xfer);  in spi_engine_rx_next()
352 	} while (xfer && !xfer->rx_buf);  in spi_engine_rx_next()
354 	st->rx_xfer = xfer;  in spi_engine_rx_next()
355 	if (xfer) {  in spi_engine_rx_next()
356 		st->rx_length = xfer->len;  in spi_engine_rx_next()
357 		st->rx_buf = xfer->rx_buf;  in spi_engine_rx_next()
595 		struct spi_transfer *xfer;  in spi_engine_transfer_one_message()  local
597 		list_for_each_entry(xfer, &msg->transfers, transfer_list)  in spi_engine_transfer_one_message()
598 			trace_spi_transfer_start(msg, xfer);  in spi_engine_transfer_one_message()
629 		struct spi_transfer *xfer;  in spi_engine_transfer_one_message()  local
631 		list_for_each_entry(xfer, &msg->transfers, transfer_list)  in spi_engine_transfer_one_message()
632 			trace_spi_transfer_stop(msg, xfer);  in spi_engine_transfer_one_message()