ASoC: intel: sof_sdw: Make find_codec_info_acpi() return a pointer

Rather than returning an index simply return a pointer to the
located codec info, this simplifies all the callers which only
want to access the codec info structure. Also remove the inline
specifier the function is fairly large for an inline function,
let the compiler decide.
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://msgid.link/r/20240326160429.13560-3-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/sof_sdw.c

@@ -1076,18 +1076,18 @@ static struct sof_sdw_codec_info *find_codec_info_part(const u64 adr)
 
 }
 
-static inline int find_codec_info_acpi(const u8 *acpi_id)
+static struct sof_sdw_codec_info *find_codec_info_acpi(const u8 *acpi_id)
 {
 	int i;
 
 	if (!acpi_id[0])
-		return -EINVAL;
+		return NULL;
 
 	for (i = 0; i < ARRAY_SIZE(codec_info_list); i++)
 		if (!memcmp(codec_info_list[i].acpi_id, acpi_id, ACPI_ID_LEN))
-			return i;
+			return &codec_info_list[i];
 
-	return -EINVAL;
+	return NULL;
 }
 
 /*
@@ -1643,18 +1643,19 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 	bool aggregation = !(sof_sdw_quirk & SOF_SDW_NO_AGGREGATION);
 	struct snd_soc_codec_conf *codec_conf;
 	struct sof_sdw_codec_info *codec_info;
+	struct sof_sdw_codec_info *ssp_info;
 	bool append_dai_type = false;
 	bool ignore_pch_dmic = false;
 	int codec_conf_num = 0;
 	int codec_conf_index = 0;
 	bool group_generated[SDW_MAX_GROUPS] = { };
-	int ssp_codec_index, ssp_mask;
 	struct snd_soc_dai_link *dai_links;
 	int num_links, link_index = 0;
 	char *name, *cpu_dai_name;
 	char *codec_name, *codec_dai_name;
 	int i, j, be_id = 0;
 	int hdmi_num;
+	int ssp_mask;
 	int ret;
 
 	ret = get_dailink_info(dev, adr_link, &sdw_be_num, &codec_conf_num);
@@ -1669,8 +1670,8 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 	 * system only when I2S mode is supported, not sdw mode.
 	 * Here check ACPI ID to confirm I2S is supported.
 	 */
-	ssp_codec_index = find_codec_info_acpi(mach->id);
-	if (ssp_codec_index >= 0) {
+	ssp_info = find_codec_info_acpi(mach->id);
+	if (ssp_info) {
 		ssp_mask = SOF_SSP_GET_PORT(sof_sdw_quirk);
 		ssp_num = hweight_long(ssp_mask);
 	}
@@ -1788,30 +1789,28 @@ static int sof_card_dai_links_create(struct snd_soc_card *card)
 		goto DMIC;
 
 	for (i = 0, j = 0; ssp_mask; i++, ssp_mask >>= 1) {
-		struct sof_sdw_codec_info *info;
 		int playback, capture;
 
 		if (!(ssp_mask & 0x1))
 			continue;
 
-		info = &codec_info_list[ssp_codec_index];
-
 		name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", i);
 		cpu_dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", i);
 		codec_name = devm_kasprintf(dev, GFP_KERNEL, "i2c-%s:0%d",
-					    info->acpi_id, j++);
+					    ssp_info->acpi_id, j++);
 
-		playback = info->dais[0].direction[SNDRV_PCM_STREAM_PLAYBACK];
-		capture = info->dais[0].direction[SNDRV_PCM_STREAM_CAPTURE];
+		playback = ssp_info->dais[0].direction[SNDRV_PCM_STREAM_PLAYBACK];
+		capture = ssp_info->dais[0].direction[SNDRV_PCM_STREAM_CAPTURE];
 
 		ret = init_simple_dai_link(dev, dai_links + link_index, &be_id, name,
 					   playback, capture, cpu_dai_name,
-					   codec_name, info->dais[0].dai_name,
-					   NULL, info->ops);
+					   codec_name, ssp_info->dais[0].dai_name,
+					   NULL, ssp_info->ops);
 		if (ret)
 			return ret;
 
-		ret = info->dais[0].init(card, NULL, dai_links + link_index, info, 0);
+		ret = ssp_info->dais[0].init(card, NULL, dai_links + link_index,
+					     ssp_info, 0);
 		if (ret < 0)
 			return ret;