ASoC: add for_each_card_prelinks() macro

To be more readable code, this patch adds
new for_each_card_prelinks() macro, and replace existing code to it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -1120,6 +1120,10 @@ struct snd_soc_card {
 
 	void *drvdata;
 };
+#define for_each_card_prelinks(card, i, link)				\
+	for ((i) = 0;							\
+	     ((i) < (card)->num_links) && ((link) = &(card)->dai_link[i]); \
+	     (i)++)
 
 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
 struct snd_soc_pcm_runtime {

sound/soc/fsl/pcm030-audio-fabric.c

@@ -57,6 +57,7 @@ static int pcm030_fabric_probe(struct platform_device *op)
 	struct device_node *platform_np;
 	struct snd_soc_card *card = &pcm030_card;
 	struct pcm030_audio_data *pdata;
+	struct snd_soc_dai_link *dai_link;
 	int ret;
 	int i;
 
@@ -78,8 +79,8 @@ static int pcm030_fabric_probe(struct platform_device *op)
 		return -ENODEV;
 	}
 
-	for (i = 0; i < card->num_links; i++)
-		card->dai_link[i].platform_of_node = platform_np;
+	for_each_card_prelinks(card, i, dai_link)
+		dai_link->platform_of_node = platform_np;
 
 	ret = request_module("snd-soc-wm9712");
 	if (ret)

sound/soc/generic/simple-card-utils.c

@@ -404,11 +404,9 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu);
 int asoc_simple_card_clean_reference(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *dai_link;
-	int num_links;
+	int i;
 
-	for (num_links = 0, dai_link = card->dai_link;
-	     num_links < card->num_links;
-	     num_links++, dai_link++) {
+	for_each_card_prelinks(card, i, dai_link) {
 		of_node_put(dai_link->cpu_of_node);
 		of_node_put(dai_link->codecs->of_node);
 	}

sound/soc/intel/boards/skl_hda_dsp_generic.c

@@ -104,6 +104,7 @@ static struct snd_soc_card hda_soc_card = {
 static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata)
 {
 	struct snd_soc_card *card = &hda_soc_card;
+	struct snd_soc_dai_link *dai_link;
 	u32 codec_count, codec_mask;
 	int i, num_links, num_route;
 
@@ -125,8 +126,8 @@ static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata)
 	card->num_links = num_links;
 	card->num_dapm_routes = num_route;
 
-	for (i = 0; i < num_links; i++)
-		skl_hda_be_dai_links[i].platform_name = pdata->platform;
+	for_each_card_prelinks(card, i, dai_link)
+		dai_link->platform_name = pdata->platform;
 
 	return 0;
 }

sound/soc/mediatek/mt2701/mt2701-cs42448.c

@@ -299,6 +299,7 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev)
 		devm_kzalloc(&pdev->dev, sizeof(struct mt2701_cs42448_private),
 			     GFP_KERNEL);
 	struct device *dev = &pdev->dev;
+	struct snd_soc_dai_link *dai_link;
 
 	if (!priv)
 		return -ENOMEM;
@@ -309,10 +310,10 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt2701_cs42448_dai_links[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_links->platform_name)
 			continue;
-		mt2701_cs42448_dai_links[i].platform_of_node = platform_node;
+		dai_links->platform_of_node = platform_node;
 	}
 
 	card->dev = dev;
@@ -324,10 +325,10 @@ static int mt2701_cs42448_machine_probe(struct platform_device *pdev)
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt2701_cs42448_dai_links[i].codec_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_links->codec_name)
 			continue;
-		mt2701_cs42448_dai_links[i].codec_of_node = codec_node;
+		dai_links->codec_of_node = codec_node;
 	}
 
 	codec_node_bt_mrg = of_parse_phandle(pdev->dev.of_node,

sound/soc/mediatek/mt2701/mt2701-wm8960.c

@@ -97,6 +97,7 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt2701_wm8960_card;
 	struct device_node *platform_node, *codec_node;
+	struct snd_soc_dai_link *dai_link;
 	int ret, i;
 
 	platform_node = of_parse_phandle(pdev->dev.of_node,
@@ -105,10 +106,10 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt2701_wm8960_dai_links[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_links->platform_name)
 			continue;
-		mt2701_wm8960_dai_links[i].platform_of_node = platform_node;
+		dai_links->platform_of_node = platform_node;
 	}
 
 	card->dev = &pdev->dev;
@@ -120,10 +121,10 @@ static int mt2701_wm8960_machine_probe(struct platform_device *pdev)
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt2701_wm8960_dai_links[i].codec_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_links->codec_name)
 			continue;
-		mt2701_wm8960_dai_links[i].codec_of_node = codec_node;
+		dai_links->codec_of_node = codec_node;
 	}
 
 	ret = snd_soc_of_parse_audio_routing(card, "audio-routing");

sound/soc/mediatek/mt6797/mt6797-mt6351.c

@@ -158,6 +158,7 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt6797_mt6351_card;
 	struct device_node *platform_node, *codec_node;
+	struct snd_soc_dai_link *dai_link;
 	int ret, i;
 
 	card->dev = &pdev->dev;
@@ -168,10 +169,10 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt6797_mt6351_dai_links[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->platform_name)
 			continue;
-		mt6797_mt6351_dai_links[i].platform_of_node = platform_node;
+		dai_links->platform_of_node = platform_node;
 	}
 
 	codec_node = of_parse_phandle(pdev->dev.of_node,
@@ -181,10 +182,10 @@ static int mt6797_mt6351_dev_probe(struct platform_device *pdev)
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt6797_mt6351_dai_links[i].codec_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_links->codec_name)
 			continue;
-		mt6797_mt6351_dai_links[i].codec_of_node = codec_node;
+		dai_links->codec_of_node = codec_node;
 	}
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);

sound/soc/mediatek/mt8173/mt8173-max98090.c

@@ -137,6 +137,7 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_max98090_card;
 	struct device_node *codec_node, *platform_node;
+	struct snd_soc_dai_link *dai_link;
 	int ret, i;
 
 	platform_node = of_parse_phandle(pdev->dev.of_node,
@@ -145,10 +146,10 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt8173_max98090_dais[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->platform_name)
 			continue;
-		mt8173_max98090_dais[i].platform_of_node = platform_node;
+		dai_link->platform_of_node = platform_node;
 	}
 
 	codec_node = of_parse_phandle(pdev->dev.of_node,
@@ -158,10 +159,10 @@ static int mt8173_max98090_dev_probe(struct platform_device *pdev)
 			"Property 'audio-codec' missing or invalid\n");
 		return -EINVAL;
 	}
-	for (i = 0; i < card->num_links; i++) {
-		if (mt8173_max98090_dais[i].codec_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->codec_name)
 			continue;
-		mt8173_max98090_dais[i].codec_of_node = codec_node;
+		dai_link->codec_of_node = codec_node;
 	}
 	card->dev = &pdev->dev;
 

sound/soc/mediatek/mt8173/mt8173-rt5650-rt5514.c

@@ -178,6 +178,7 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_rt5650_rt5514_card;
 	struct device_node *platform_node;
+	struct snd_soc_dai_link *dai_link;
 	int i, ret;
 
 	platform_node = of_parse_phandle(pdev->dev.of_node,
@@ -187,10 +188,10 @@ static int mt8173_rt5650_rt5514_dev_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	for (i = 0; i < card->num_links; i++) {
-		if (mt8173_rt5650_rt5514_dais[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->platform_name)
 			continue;
-		mt8173_rt5650_rt5514_dais[i].platform_of_node = platform_node;
+		dai_link->platform_of_node = platform_node;
 	}
 
 	mt8173_rt5650_rt5514_codecs[0].of_node =

sound/soc/mediatek/mt8173/mt8173-rt5650-rt5676.c

@@ -224,6 +224,7 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &mt8173_rt5650_rt5676_card;
 	struct device_node *platform_node;
+	struct snd_soc_dai_link *dai_link;
 	int i, ret;
 
 	platform_node = of_parse_phandle(pdev->dev.of_node,
@@ -233,10 +234,10 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	for (i = 0; i < card->num_links; i++) {
-		if (mt8173_rt5650_rt5676_dais[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->platform_name)
 			continue;
-		mt8173_rt5650_rt5676_dais[i].platform_of_node = platform_node;
+		dai_link->platform_of_node = platform_node;
 	}
 
 	mt8173_rt5650_rt5676_codecs[0].of_node =

sound/soc/mediatek/mt8173/mt8173-rt5650.c

@@ -239,6 +239,7 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 	struct device_node *platform_node;
 	struct device_node *np;
 	const char *codec_capture_dai;
+	struct snd_soc_dai_link *dai_link;
 	int i, ret;
 
 	platform_node = of_parse_phandle(pdev->dev.of_node,
@@ -248,10 +249,10 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	for (i = 0; i < card->num_links; i++) {
-		if (mt8173_rt5650_dais[i].platform_name)
+	for_each_card_prelinks(card, i, dai_link) {
+		if (dai_link->platform_name)
 			continue;
-		mt8173_rt5650_dais[i].platform_of_node = platform_node;
+		dai_link->platform_of_node = platform_node;
 	}
 
 	mt8173_rt5650_codecs[0].of_node =

sound/soc/meson/axg-card.c

@@ -101,8 +101,7 @@ static void axg_card_clean_references(struct axg_card *priv)
 	int i, j;
 
 	if (card->dai_link) {
-		for (i = 0; i < card->num_links; i++) {
-			link = &card->dai_link[i];
+		for_each_card_prelinks(card, i, link) {
 			of_node_put(link->cpu_of_node);
 			for_each_link_codecs(link, j, codec)
 				of_node_put(codec->of_node);

sound/soc/qcom/apq8096.c

@@ -25,13 +25,12 @@ static int apq8096_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 
 static void apq8096_add_be_ops(struct snd_soc_card *card)
 {
-	struct snd_soc_dai_link *link = card->dai_link;
-	int i, num_links = card->num_links;
+	struct snd_soc_dai_link *link;
+	int i;
 
-	for (i = 0; i < num_links; i++) {
+	for_each_card_prelinks(card, i, link) {
 		if (link->no_pcm == 1)
 			link->be_hw_params_fixup = apq8096_be_hw_params_fixup;
-		link++;
 	}
 }
 

sound/soc/qcom/sdm845.c

@@ -195,15 +195,14 @@ static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 
 static void sdm845_add_be_ops(struct snd_soc_card *card)
 {
-	struct snd_soc_dai_link *link = card->dai_link;
-	int i, num_links = card->num_links;
+	struct snd_soc_dai_link *link;
+	int i;
 
-	for (i = 0; i < num_links; i++) {
+	for_each_card_prelinks(card, i, link) {
 		if (link->no_pcm == 1) {
 			link->ops = &sdm845_be_ops;
 			link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
 		}
-		link++;
 	}
 }
 

sound/soc/samsung/tm2_wm5110.c

@@ -491,6 +491,7 @@ static int tm2_probe(struct platform_device *pdev)
 	struct snd_soc_card *card = &tm2_card;
 	struct tm2_machine_priv *priv;
 	struct of_phandle_args args;
+	struct snd_soc_dai_link *dai_link;
 	int num_codecs, ret, i;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -558,18 +559,18 @@ static int tm2_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize WM5110 - I2S and HDMI - I2S1 DAI links */
-	for (i = 0; i < card->num_links; i++) {
+	for_each_card_prelinks(card, i, dai_link) {
 		unsigned int dai_index = 0; /* WM5110 */
 
-		card->dai_link[i].cpu_name = NULL;
-		card->dai_link[i].platform_name = NULL;
+		dai_link->cpu_name = NULL;
+		dai_link->platform_name = NULL;
 
 		if (num_codecs > 1 && i == card->num_links - 1)
 			dai_index = 1; /* HDMI */
 
-		card->dai_link[i].codec_of_node = codec_dai_node[dai_index];
-		card->dai_link[i].cpu_of_node = cpu_dai_node[dai_index];
-		card->dai_link[i].platform_of_node = cpu_dai_node[dai_index];
+		dai_link->codec_of_node = codec_dai_node[dai_index];
+		dai_link->cpu_of_node = cpu_dai_node[dai_index];
+		dai_link->platform_of_node = cpu_dai_node[dai_index];
 	}
 
 	if (num_codecs > 1) {

sound/soc/soc-core.c

@@ -1889,9 +1889,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card)
 			continue;
 
 		/* machine matches, so override the rtd data */
-		for (i = 0; i < card->num_links; i++) {
-
-			dai_link = &card->dai_link[i];
+		for_each_card_prelinks(card, i, dai_link) {
 
 			/* ignore this FE */
 			if (dai_link->dynamic) {
@@ -1955,8 +1953,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	soc_check_tplg_fes(card);
 
 	/* bind DAIs */
-	for (i = 0; i < card->num_links; i++) {
-		ret = soc_bind_dai_link(card, &card->dai_link[i]);
+	for_each_card_prelinks(card, i, dai_link) {
+		ret = soc_bind_dai_link(card, dai_link);
 		if (ret != 0)
 			goto base_error;
 	}
@@ -1969,8 +1967,8 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	}
 
 	/* add predefined DAI links to the list */
-	for (i = 0; i < card->num_links; i++)
-		snd_soc_add_dai_link(card, card->dai_link+i);
+	for_each_card_prelinks(card, i, dai_link)
+		snd_soc_add_dai_link(card, dai_link);
 
 	/* card bind complete so register a sound card */
 	ret = snd_card_new(card->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
@@ -2714,12 +2712,12 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
 int snd_soc_register_card(struct snd_soc_card *card)
 {
 	int i, ret;
+	struct snd_soc_dai_link *link;
 
 	if (!card->name || !card->dev)
 		return -EINVAL;
 
-	for (i = 0; i < card->num_links; i++) {
-		struct snd_soc_dai_link *link = &card->dai_link[i];
+	for_each_card_prelinks(card, i, link) {
 
 		ret = soc_init_dai_link(card, link);
 		if (ret) {