ALSA: hda - Fix dynamic ADC change working again

The commit eb541337
    ALSA: hda - Make converter setups sticky
changes the semantics of snd_hda_codec_cleanup_stream() not to clean up
the stream at that moment but delay the action.  This broke the codes
expecting that the clean-up is done immediately, such as dynamic ADC
changes in some codec drivers.

This patch fixes the issue by introducing a lower helper,
__snd_hda_codec_cleanup_stream(), to allow the immediate clean up.
The original snd_hda_codec_cleanup_stream() is kept as is now.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

@@ -1261,12 +1261,17 @@ void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_HDA(snd_hda_codec_setup_stream);
 
+static void really_cleanup_stream(struct hda_codec *codec,
+				  struct hda_cvt_setup *q);
+
 /**
- * snd_hda_codec_cleanup_stream - clean up the codec for closing
+ * __snd_hda_codec_cleanup_stream - clean up the codec for closing
  * @codec: the CODEC to clean up
  * @nid: the NID to clean up
+ * @do_now: really clean up the stream instead of clearing the active flag
  */
-void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
+void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
+				    int do_now)
 {
 	struct hda_cvt_setup *p;
 
@@ -1274,14 +1279,19 @@ void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid)
 		return;
 
 	snd_printdd("hda_codec_cleanup_stream: NID=0x%x\n", nid);
-	/* here we just clear the active flag; actual clean-ups will be done
-	 * in purify_inactive_streams()
-	 */
 	p = get_hda_cvt_setup(codec, nid);
-	if (p)
+	if (p) {
+		/* here we just clear the active flag when do_now isn't set;
+		 * actual clean-ups will be done later in
+		 * purify_inactive_streams() called from snd_hda_codec_prpapre()
+		 */
+		if (do_now)
+			really_cleanup_stream(codec, p);
+		else
 			p->active = 0;
+	}
 }
-EXPORT_SYMBOL_HDA(snd_hda_codec_cleanup_stream);
+EXPORT_SYMBOL_HDA(__snd_hda_codec_cleanup_stream);
 
 static void really_cleanup_stream(struct hda_codec *codec,
 				  struct hda_cvt_setup *q)

sound/pci/hda/hda_codec.h

@@ -963,7 +963,10 @@ void snd_hda_codec_cleanup(struct hda_codec *codec,
 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 				u32 stream_tag,
 				int channel_id, int format);
-void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid);
+void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
+				    int do_now);
+#define snd_hda_codec_cleanup_stream(codec, nid) \
+	__snd_hda_codec_cleanup_stream(codec, nid, 0)
 unsigned int snd_hda_calc_stream_format(unsigned int rate,
 					unsigned int channels,
 					unsigned int format,

sound/pci/hda/patch_cirrus.c

@@ -656,7 +656,7 @@ static int change_cur_input(struct hda_codec *codec, unsigned int idx,
 		return 0;
 	if (spec->cur_adc && spec->cur_adc != spec->adc_nid[idx]) {
 		/* stream is running, let's swap the current ADC */
-		snd_hda_codec_cleanup_stream(codec, spec->cur_adc);
+		__snd_hda_codec_cleanup_stream(codec, spec->cur_adc, 1);
 		spec->cur_adc = spec->adc_nid[idx];
 		snd_hda_codec_setup_stream(codec, spec->cur_adc,
 					   spec->cur_adc_stream_tag, 0,

sound/pci/hda/patch_conexant.c

@@ -1733,7 +1733,7 @@ static void cxt5051_portc_automic(struct hda_codec *codec)
 	new_adc = spec->adc_nids[spec->cur_adc_idx];
 	if (spec->cur_adc && spec->cur_adc != new_adc) {
 		/* stream is running, let's swap the current ADC */
-		snd_hda_codec_cleanup_stream(codec, spec->cur_adc);
+		__snd_hda_codec_cleanup_stream(codec, spec->cur_adc, 1);
 		spec->cur_adc = new_adc;
 		snd_hda_codec_setup_stream(codec, new_adc,
 					   spec->cur_adc_stream_tag, 0,

sound/pci/hda/patch_realtek.c

@@ -1037,7 +1037,7 @@ static void alc_dual_mic_adc_auto_switch(struct hda_codec *codec)
 	new_adc = spec->adc_nids[spec->cur_adc_idx];
 	if (spec->cur_adc && spec->cur_adc != new_adc) {
 		/* stream is running, let's swap the current ADC */
-		snd_hda_codec_cleanup_stream(codec, spec->cur_adc);
+		__snd_hda_codec_cleanup_stream(codec, spec->cur_adc, 1);
 		spec->cur_adc = new_adc;
 		snd_hda_codec_setup_stream(codec, new_adc,
 					   spec->cur_adc_stream_tag, 0,