ALSA: hdspm - Report external rate in slave mode on PCI MADI

As a follow-up to a97bda7d29d02a2e9c6609d0947b15e55f5200e5, report the
external sample rate as system_sample_rate when in slave mode.

For PCIe MADI cards, the DDS value automatically contains the external
sample rate, but the PCI version needs this manual workaround.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 9 insertions, 4 deletions

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 742bd5e430ab..1131a8ab3f73 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -971,6 +971,7 @@ static inline void snd_hdspm_initialize_midi_flush(struct hdspm *hdspm);
 static int hdspm_update_simple_mixer_controls(struct hdspm *hdspm);
 static int hdspm_autosync_ref(struct hdspm *hdspm);
 static int snd_hdspm_set_defaults(struct hdspm *hdspm);
+static int hdspm_system_clock_mode(struct hdspm *hdspm);
 static void hdspm_set_sgbuf(struct hdspm *hdspm,
                             struct snd_pcm_substream *substream,
                              unsigned int reg, int channels);
@@ -1989,10 +1990,14 @@ static int hdspm_get_system_sample_rate(struct hdspm *hdspm)
         rate = hdspm_calc_dds_value(hdspm, period);
 
         if (rate > 207000) {
-                /* Unreasonable high sample rate as seen on PCI MADI cards.
-                 * Use the cached value instead.
-                 */
-                rate = hdspm->system_sample_rate;
+                /* Unreasonable high sample rate as seen on PCI MADI cards. */
+                if (0 == hdspm_system_clock_mode(hdspm)) {
+                        /* master mode, return internal sample rate */
+                        rate = hdspm->system_sample_rate;
+                } else {
+                        /* slave mode, return external sample rate */
+                        rate = hdspm_external_sample_rate(hdspm);
+                }
         }
 
         return rate;