soc/fsl/fsl_asrc.c

161  * @outrate: output sample rate
167  * 1) inrate > 8.125 * outrate
168  * 2) inrate > 16.125 * outrate
171 static void fsl_asrc_sel_proc(int inrate, int outrate,
178 	if (inrate * 8 > 33 * outrate)
180 	else if (inrate * 8 > 15 * outrate) {
193 	post_proc_cond2 = (inrate * 15 > outrate * 16 && outrate < 56000) ||
194 			  (inrate > 56000 && outrate < 56000);
195 	post_proc_cond0 = inrate * 23 < outrate * 8;
319  * @outrate: output rate
324 				    int inrate, int outrate)
331 	if (!outrate) {
337 	ratio = (inrate / outrate) << IDEAL_RATIO_DECIMAL_DEPTH;
340 	inrate %= outrate;
345 		if (inrate < outrate)
349 		inrate -= outrate;
386 	u32 inrate, outrate, indiv, outdiv;
435 	outrate = config->output_sample_rate;
449 		if (outrate == supported_asrc_rate[out])
453 		pair_err("unsupported output sample rate: %dHz\n", outrate);
457 	if ((outrate >= 5512 && outrate <= 30000) &&
458 	    (outrate > 24 * inrate || inrate > 8 * outrate)) {
460 				inrate/outrate: %d/%d\n", inrate, outrate);
494 		div_avail = fsl_asrc_divider_avail(clk_rate, outrate, &div[OUT]);
499 				outrate, clk_index[OUT]);
566 	fsl_asrc_sel_proc(inrate, outrate, &pre_proc, &post_proc);
574 	return fsl_asrc_set_ideal_ratio(pair, inrate, outrate);