ALSA: trident - pause s/pdif output

Commit 981bcead3f2279a1ec6fb5f2c57aff79ed61a700 upstream.

Stop the S/PDIF DMA engine and output when the device is told to pause.
It will keep on looping the current buffer contents if this isn't done.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Tested-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 71138ff9b310237faedee66ea9a0445994bbb0a2..a9b40a1d4ee07abf090988c1ce9d66cfe98ef0c0 100644 (file)
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -1590,7 +1590,10 @@ static int snd_trident_trigger(struct snd_pcm_substream *substream,
        if (spdif_flag) {
                if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
                        outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
-                       outb(trident->spdif_pcm_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
+                       val = trident->spdif_pcm_ctrl;
+                       if (!go)
+                               val &= ~(0x28);
+                       outb(val, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
                } else {
                        outl(trident->spdif_pcm_bits, TRID_REG(trident, SI_SPDIF_CS));
                        val = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) | SPDIF_EN;