161  * @ratio: desired overall ratio for the paticipating dividers
165 static int fsl_esai_divisor_cal(struct snd_soc_dai *dai, bool tx, u32 ratio,  in fsl_esai_divisor_cal()  argument
176 	if (ratio > 2 * 8 * 256 * maxfp || ratio < 2) {  in fsl_esai_divisor_cal()
177 		dev_err(dai->dev, "the ratio is out of range (2 ~ %d)\n",  in fsl_esai_divisor_cal()
180 	} else if (ratio % 2) {  in fsl_esai_divisor_cal()
185 	ratio /= 2;  in fsl_esai_divisor_cal()
187 	psr = ratio <= 256 * maxfp ? ESAI_xCCR_xPSR_BYPASS : ESAI_xCCR_xPSR_DIV8;  in fsl_esai_divisor_cal()
189 	/* Do not loop-search if PM (1 ~ 256) alone can serve the ratio */  in fsl_esai_divisor_cal()
190 	if (ratio <= 256) {  in fsl_esai_divisor_cal()
191 		pm = ratio;  in fsl_esai_divisor_cal()
205 			if (prod == ratio)  in fsl_esai_divisor_cal()
207 			else if (prod / ratio == 1)  in fsl_esai_divisor_cal()
208 				sub = prod - ratio;  in fsl_esai_divisor_cal()
209 			else if (ratio / prod == 1)  in fsl_esai_divisor_cal()
210 				sub = ratio - prod;  in fsl_esai_divisor_cal()
215 			sub = sub * 1000 / ratio;  in fsl_esai_divisor_cal()
266 	u32 ratio, ecr = 0;  in fsl_esai_set_dai_sysclk()  local
312 	ratio = clk_rate / freq;  in fsl_esai_set_dai_sysclk()
313 	if (ratio * freq > clk_rate)  in fsl_esai_set_dai_sysclk()
314 		ret = ratio * freq - clk_rate;  in fsl_esai_set_dai_sysclk()
315 	else if (ratio * freq < clk_rate)  in fsl_esai_set_dai_sysclk()
316 		ret = clk_rate - ratio * freq;  in fsl_esai_set_dai_sysclk()
328 	if (ratio == 1 && clksrc == esai_priv->extalclk) {  in fsl_esai_set_dai_sysclk()
332 	} else if (ratio < 2) {  in fsl_esai_set_dai_sysclk()
333 		/* The ratio should be no less than 2 if using other sources */  in fsl_esai_set_dai_sysclk()
339 	ret = fsl_esai_divisor_cal(dai, tx, ratio, false, 0);  in fsl_esai_set_dai_sysclk()
366 	u32 sub, ratio = hck_rate / freq;  in fsl_esai_set_bclk()  local
373 	if (ratio * freq > hck_rate)  in fsl_esai_set_bclk()
374 		sub = ratio * freq - hck_rate;  in fsl_esai_set_bclk()
375 	else if (ratio * freq < hck_rate)  in fsl_esai_set_bclk()
376 		sub = hck_rate - ratio * freq;  in fsl_esai_set_bclk()
387 	/* The ratio should be contented by FP alone if bypassing PM and PSR */  in fsl_esai_set_bclk()
388 	if (!esai_priv->sck_div[tx] && (ratio > 16 || ratio == 0)) {  in fsl_esai_set_bclk()
389 		dev_err(dai->dev, "the ratio is out of range (1 ~ 16)\n");  in fsl_esai_set_bclk()
393 	ret = fsl_esai_divisor_cal(dai, tx, ratio, true,  in fsl_esai_set_bclk()
394 			esai_priv->sck_div[tx] ? 0 : ratio);  in fsl_esai_set_bclk()