Revert "ASoC: sdw_utils: cs_amp: Assign non-overlapping TDM masks for each codec on a bus"

This reverts commit 74d4c78.
Will use the upstream commit after merge.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>

Author: bardliao

include/sound/soc_sdw_utils.h

@@ -224,8 +224,6 @@ int asoc_sdw_cs_amp_init(struct snd_soc_card *card,
 			 struct snd_soc_dai_link *dai_links,
 			 struct asoc_sdw_codec_info *info,
 			 bool playback);
-int asoc_sdw_cs_spk_feedback_rtd_init(struct snd_soc_pcm_runtime *rtd,
-				      struct snd_soc_dai *dai);
 
 /* MAXIM codec support */
 int asoc_sdw_maxim_init(struct snd_soc_card *card,

sound/soc/sdw_utils/soc_sdw_cs_amp.c

@@ -15,7 +15,6 @@
 #include <sound/soc_sdw_utils.h>
 
 #define CODEC_NAME_SIZE	8
-#define CS_AMP_CHANNELS_PER_AMP	4
 
 int asoc_sdw_cs_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
 {
@@ -49,51 +48,6 @@ int asoc_sdw_cs_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai
 }
 EXPORT_SYMBOL_NS(asoc_sdw_cs_spk_rtd_init, SND_SOC_SDW_UTILS);
 
-int asoc_sdw_cs_spk_feedback_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
-{
-	const struct snd_soc_dai_link *dai_link = rtd->dai_link;
-	const struct snd_soc_dai_link_ch_map *ch_map;
-	const struct snd_soc_dai_link_component *codec_dlc;
-	struct snd_soc_dai *codec_dai;
-	u8 ch_slot[8] = {};
-	unsigned int amps_per_bus, ch_per_amp, mask;
-	int i, ret;
-
-	WARN_ON(dai_link->num_cpus > ARRAY_SIZE(ch_slot));
-
-	/*
-	 * CS35L56 has 4 TX channels. When the capture is aggregated the
-	 * same bus slots will be allocated to all the amps on a bus. Only
-	 * one amp on that bus can be transmitting in each slot so divide
-	 * the available 4 slots between all the amps on a bus.
-	 */
-	amps_per_bus = dai_link->num_codecs / dai_link->num_cpus;
-	if ((amps_per_bus == 0) || (amps_per_bus > CS_AMP_CHANNELS_PER_AMP)) {
-		dev_err(rtd->card->dev, "Illegal num_codecs:%u / num_cpus:%u\n",
-			dai_link->num_codecs, dai_link->num_cpus);
-		return -EINVAL;
-	}
-
-	ch_per_amp = CS_AMP_CHANNELS_PER_AMP / amps_per_bus;
-
-	for_each_rtd_ch_maps(rtd, i, ch_map) {
-		codec_dlc = snd_soc_link_to_codec(rtd->dai_link, i);
-		codec_dai = snd_soc_find_dai(codec_dlc);
-		mask = GENMASK(ch_per_amp - 1, 0) << ch_slot[ch_map->cpu];
-
-		ret = snd_soc_dai_set_tdm_slot(codec_dai, 0, mask, 4, 32);
-		if (ret < 0) {
-			dev_err(rtd->card->dev, "Failed to set TDM slot:%d\n", ret);
-			return ret;
-		}
-
-		ch_slot[ch_map->cpu] += ch_per_amp;
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL_NS(asoc_sdw_cs_spk_feedback_rtd_init, SND_SOC_SDW_UTILS);
-
 int asoc_sdw_cs_amp_init(struct snd_soc_card *card,
 			 struct snd_soc_dai_link *dai_links,
 			 struct asoc_sdw_codec_info *info,

sound/soc/sdw_utils/soc_sdw_utils.c

@@ -504,7 +504,6 @@ struct asoc_sdw_codec_info codec_info_list[] = {
 				.dai_name = "cs35l56-sdw1c",
 				.dai_type = SOC_SDW_DAI_TYPE_AMP,
 				.dailink = {SOC_SDW_UNUSED_DAI_ID, SOC_SDW_AMP_IN_DAI_ID},
-				.rtd_init = asoc_sdw_cs_spk_feedback_rtd_init,
 			},
 		},
 		.dai_num = 2,