ALSA: hda - Remove channel mode helper functions

They are no longer used, let's kill them.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_codec.c

@@ -4843,88 +4843,6 @@ int snd_hda_check_amp_list_power(struct hda_codec *codec,
 EXPORT_SYMBOL_GPL(snd_hda_check_amp_list_power);
 #endif
 
-/*
- * Channel mode helper
- */
-
-/**
- * snd_hda_ch_mode_info - Info callback helper for the channel mode enum
- * @codec: the HDA codec
- * @uinfo: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- */
-int snd_hda_ch_mode_info(struct hda_codec *codec,
-			 struct snd_ctl_elem_info *uinfo,
-			 const struct hda_channel_mode *chmode,
-			 int num_chmodes)
-{
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->count = 1;
-	uinfo->value.enumerated.items = num_chmodes;
-	if (uinfo->value.enumerated.item >= num_chmodes)
-		uinfo->value.enumerated.item = num_chmodes - 1;
-	sprintf(uinfo->value.enumerated.name, "%dch",
-		chmode[uinfo->value.enumerated.item].channels);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_info);
-
-/**
- * snd_hda_ch_mode_get - Get callback helper for the channel mode enum
- * @codec: the HDA codec
- * @ucontrol: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- * @max_channels: max number of channels
- */
-int snd_hda_ch_mode_get(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int max_channels)
-{
-	int i;
-
-	for (i = 0; i < num_chmodes; i++) {
-		if (max_channels == chmode[i].channels) {
-			ucontrol->value.enumerated.item[0] = i;
-			break;
-		}
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_get);
-
-/**
- * snd_hda_ch_mode_put - Put callback helper for the channel mode enum
- * @codec: the HDA codec
- * @ucontrol: pointer to get/store the data
- * @chmode: channel mode array
- * @num_chmodes: channel mode array size
- * @max_channelsp: pointer to store the max channels
- */
-int snd_hda_ch_mode_put(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int *max_channelsp)
-{
-	unsigned int mode;
-
-	mode = ucontrol->value.enumerated.item[0];
-	if (mode >= num_chmodes)
-		return -EINVAL;
-	if (*max_channelsp == chmode[mode].channels)
-		return 0;
-	/* change the current channel setting */
-	*max_channelsp = chmode[mode].channels;
-	if (chmode[mode].sequence)
-		snd_hda_sequence_write_cache(codec, chmode[mode].sequence);
-	return 1;
-}
-EXPORT_SYMBOL_GPL(snd_hda_ch_mode_put);
-
 /*
  * input MUX helper
  */

sound/pci/hda/hda_local.h

@@ -272,29 +272,6 @@ int snd_hda_add_imux_item(struct hda_codec *codec,
 			  struct hda_input_mux *imux, const char *label,
 			  int index, int *type_index_ret);
 
-/*
- * Channel mode helper
- */
-struct hda_channel_mode {
-	int channels;
-	const struct hda_verb *sequence;
-};
-
-int snd_hda_ch_mode_info(struct hda_codec *codec,
-			 struct snd_ctl_elem_info *uinfo,
-			 const struct hda_channel_mode *chmode,
-			 int num_chmodes);
-int snd_hda_ch_mode_get(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int max_channels);
-int snd_hda_ch_mode_put(struct hda_codec *codec,
-			struct snd_ctl_elem_value *ucontrol,
-			const struct hda_channel_mode *chmode,
-			int num_chmodes,
-			int *max_channelsp);
-
 /*
  * Multi-channel / digital-out PCM helper
  */