Merge remote-tracking branch 'asoc/fix/fsl-ssi' into asoc-linus
authorMark Brown <broonie@kernel.org>
Wed, 4 Mar 2015 20:42:38 +0000 (20:42 +0000)
committerMark Brown <broonie@kernel.org>
Wed, 4 Mar 2015 20:42:38 +0000 (20:42 +0000)
sound/soc/fsl/fsl_ssi.c

index 2595611..b9fabbf 100644 (file)
@@ -603,10 +603,6 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
        factor = (div2 + 1) * (7 * psr + 1) * 2;
 
        for (i = 0; i < 255; i++) {
-               /* The bclk rate must be smaller than 1/5 sysclk rate */
-               if (factor * (i + 1) < 5)
-                       continue;
-
                tmprate = freq * factor * (i + 2);
 
                if (baudclk_is_used)
@@ -614,6 +610,13 @@ static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
                else
                        clkrate = clk_round_rate(ssi_private->baudclk, tmprate);
 
+               /*
+                * Hardware limitation: The bclk rate must be
+                * never greater than 1/5 IPG clock rate
+                */
+               if (clkrate * 5 > clk_get_rate(ssi_private->clk))
+                       continue;
+
                clkrate /= factor;
                afreq = clkrate / (i + 1);