ALSA: hda/hdmi: ELD procfs - print the codec NIDs

It is useful for the debugging to print also the used HDA codec NIDs
used for the given HDMI device. With the dynamic converter assignment
the converter NID is changed dynamically.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220921093349.82680-1-perex@perex.czSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_eld.c

@@ -440,7 +440,8 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a,
 }
 
 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
-			     struct snd_info_buffer *buffer)
+			     struct snd_info_buffer *buffer,
+			     hda_nid_t pin_nid, int dev_id, hda_nid_t cvt_nid)
 {
 	struct parsed_hdmi_eld *e = &eld->info;
 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
@@ -462,6 +463,9 @@ void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
 
 	snd_iprintf(buffer, "monitor_present\t\t%d\n", eld->monitor_present);
 	snd_iprintf(buffer, "eld_valid\t\t%d\n", eld->eld_valid);
+	snd_iprintf(buffer, "codec_pin_nid\t\t0x%x\n", pin_nid);
+	snd_iprintf(buffer, "codec_dev_id\t\t0x%x\n", dev_id);
+	snd_iprintf(buffer, "codec_cvt_nid\t\t0x%x\n", cvt_nid);
 	if (!eld->eld_valid)
 		return;
 	snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name);

sound/pci/hda/hda_local.h

@@ -712,7 +712,8 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
 
 #ifdef CONFIG_SND_PROC_FS
 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
-			     struct snd_info_buffer *buffer);
+			     struct snd_info_buffer *buffer,
+			     hda_nid_t pin_nid, int dev_id, hda_nid_t cvt_nid);
 void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
 			     struct snd_info_buffer *buffer);
 #endif

sound/pci/hda/patch_hdmi.c

@@ -496,7 +496,8 @@ static void print_eld_info(struct snd_info_entry *entry,
 	struct hdmi_spec_per_pin *per_pin = entry->private_data;
 
 	mutex_lock(&per_pin->lock);
-	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
+	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer, per_pin->pin_nid,
+				per_pin->dev_id, per_pin->cvt_nid);
 	mutex_unlock(&per_pin->lock);
 }