1 files changed, 16 insertions, 0 deletions

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index d21964994168..88ae27431cb2 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -1217,6 +1217,22 @@ static int hdspm_external_sample_rate(struct hdspm *hdspm)
                                 rate = 0;
                                 break;
                         }
+
+                        /* QS and DS rates normally can not be detected
+                         * automatically by the card. Only exception is MADI
+                         * in 96k frame mode.
+                         *
+                         * So if we read SS values (32 .. 48k), check for
+                         * user-provided DS/QS bits in the control register
+                         * and multiply the base frequency accordingly.
+                         */
+                        if (rate <= 48000) {
+                                if (hdspm->control_register & HDSPM_QuadSpeed)
+                                        rate *= 4;
+                                else if (hdspm->control_register &
+                                                HDSPM_DoubleSpeed)
+                                        rate *= 2;
+                        }
                 }
                 break;
         }