256 	int brdv = 0, spbr;  in rspi_set_rate()  local
259 	spbr = DIV_ROUND_UP(clksrc, 2 * rspi->speed_hz) - 1;  in rspi_set_rate()
260 	while (spbr > 255 && brdv < 3) {  in rspi_set_rate()
262 		spbr = DIV_ROUND_UP(spbr + 1, 2) - 1;  in rspi_set_rate()
265 	rspi_write8(rspi, clamp(spbr, 0, 255), RSPI_SPBR);  in rspi_set_rate()
267 	rspi->speed_hz = DIV_ROUND_UP(clksrc, (2U << brdv) * (spbr + 1));  in rspi_set_rate()
341 	int brdv = 0, spbr;  in qspi_set_config_register()  local
349 		spbr = 0;  in qspi_set_config_register()
352 		spbr = DIV_ROUND_UP(clksrc, 2 * rspi->speed_hz);  in qspi_set_config_register()
353 		while (spbr > 255 && brdv < 3) {  in qspi_set_config_register()
355 			spbr = DIV_ROUND_UP(spbr, 2);  in qspi_set_config_register()
357 		spbr = clamp(spbr, 0, 255);  in qspi_set_config_register()
358 		rspi->speed_hz = DIV_ROUND_UP(clksrc, (2U << brdv) * spbr);  in qspi_set_config_register()
360 	rspi_write8(rspi, spbr, RSPI_SPBR);  in qspi_set_config_register()