ASoC: Intel: boards: create sof-maxim-common module

sof_maxim_common.o is linked twice, move to a dedicated module.

Also clean-up interfaces to use a consistent 'max_98373' prefix for
all symbols.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
Link: https://lore.kernel.org/r/20210505163705.305616-7-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/Kconfig

@@ -29,6 +29,9 @@ config SND_SOC_INTEL_USER_FRIENDLY_LONG_NAMES
 config SND_SOC_INTEL_HDA_DSP_COMMON
 	tristate
 
+config SND_SOC_INTEL_SOF_MAXIM_COMMON
+	tristate
+
 if SND_SOC_INTEL_CATPT
 
 config SND_SOC_INTEL_HASWELL_MACH
@@ -469,6 +472,7 @@ config SND_SOC_INTEL_SOF_RT5682_MACH
 	select SND_SOC_DMIC
 	select SND_SOC_HDAC_HDMI
 	select SND_SOC_INTEL_HDA_DSP_COMMON
+	select SND_SOC_INTEL_SOF_MAXIM_COMMON
 	help
 	   This adds support for ASoC machine driver for SOF platforms
 	   with rt5682 codec.
@@ -579,6 +583,7 @@ config SND_SOC_INTEL_SOUNDWIRE_SOF_MACH
 	select SND_SOC_RT5682_SDW
 	select SND_SOC_DMIC
 	select SND_SOC_INTEL_HDA_DSP_COMMON
+	select SND_SOC_INTEL_SOF_MAXIM_COMMON
 	help
 	  Add support for Intel SoundWire-based platforms connected to
 	  MAX98373, RT700, RT711, RT1308 and RT715

sound/soc/intel/boards/Makefile

@@ -19,7 +19,7 @@ snd-soc-sst-byt-cht-cx2072x-objs := bytcht_cx2072x.o
 snd-soc-sst-byt-cht-da7213-objs := bytcht_da7213.o
 snd-soc-sst-byt-cht-es8316-objs := bytcht_es8316.o
 snd-soc-sst-byt-cht-nocodec-objs := bytcht_nocodec.o
-snd-soc-sof_rt5682-objs := sof_rt5682.o sof_maxim_common.o sof_realtek_common.o
+snd-soc-sof_rt5682-objs := sof_rt5682.o sof_realtek_common.o
 snd-soc-cml_rt1011_rt5682-objs := cml_rt1011_rt5682.o
 snd-soc-kbl_da7219_max98357a-objs := kbl_da7219_max98357a.o
 snd-soc-kbl_da7219_max98927-objs := kbl_da7219_max98927.o
@@ -38,7 +38,6 @@ snd-soc-sof-sdw-objs += sof_sdw.o				\
 			sof_sdw_rt5682.o sof_sdw_rt700.o	\
 			sof_sdw_rt711.o sof_sdw_rt711_sdca.o 	\
 			sof_sdw_rt715.o	sof_sdw_rt715_sdca.o 	\
-			sof_maxim_common.o                      \
 			sof_sdw_dmic.o sof_sdw_hdmi.o
 obj-$(CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH) += snd-soc-sof_rt5682.o
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
@@ -78,3 +77,6 @@ obj-$(CONFIG_SND_SOC_INTEL_SOUNDWIRE_SOF_MACH) += snd-soc-sof-sdw.o
 # common modules
 snd-soc-intel-hda-dsp-common-objs := hda_dsp_common.o
 obj-$(CONFIG_SND_SOC_INTEL_HDA_DSP_COMMON) += snd-soc-intel-hda-dsp-common.o
+
+snd-soc-intel-sof-maxim-common-objs += sof_maxim_common.o
+obj-$(CONFIG_SND_SOC_INTEL_SOF_MAXIM_COMMON) += snd-soc-intel-sof-maxim-common.o

sound/soc/intel/boards/sof_maxim_common.c

 // SPDX-License-Identifier: GPL-2.0-only
 //
 // Copyright(c) 2020 Intel Corporation. All rights reserved.
+#include <linux/module.h>
 #include <linux/string.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
@@ -16,6 +17,7 @@ const struct snd_soc_dapm_route max_98373_dapm_routes[] = {
 	{ "Left Spk", NULL, "Left BE_OUT" },
 	{ "Right Spk", NULL, "Right BE_OUT" },
 };
+EXPORT_SYMBOL_NS(max_98373_dapm_routes, SND_SOC_INTEL_SOF_MAXIM_COMMON);
 
 static struct snd_soc_codec_conf max_98373_codec_conf[] = {
 	{
@@ -38,9 +40,10 @@ struct snd_soc_dai_link_component max_98373_components[] = {
 		.dai_name = MAX_98373_CODEC_DAI,
 	},
 };
+EXPORT_SYMBOL_NS(max_98373_components, SND_SOC_INTEL_SOF_MAXIM_COMMON);
 
-static int max98373_hw_params(struct snd_pcm_substream *substream,
-			      struct snd_pcm_hw_params *params)
+static int max_98373_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai;
@@ -59,7 +62,7 @@ static int max98373_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-int max98373_trigger(struct snd_pcm_substream *substream, int cmd)
+int max_98373_trigger(struct snd_pcm_substream *substream, int cmd)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct snd_soc_dai *codec_dai;
@@ -102,13 +105,15 @@ int max98373_trigger(struct snd_pcm_substream *substream, int cmd)
 
 	return ret;
 }
+EXPORT_SYMBOL_NS(max_98373_trigger, SND_SOC_INTEL_SOF_MAXIM_COMMON);
 
 struct snd_soc_ops max_98373_ops = {
-	.hw_params = max98373_hw_params,
-	.trigger = max98373_trigger,
+	.hw_params = max_98373_hw_params,
+	.trigger = max_98373_trigger,
 };
+EXPORT_SYMBOL_NS(max_98373_ops, SND_SOC_INTEL_SOF_MAXIM_COMMON);
 
-int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
+int max_98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;
 	int ret;
@@ -119,9 +124,14 @@ int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd)
 		dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
 	return ret;
 }
+EXPORT_SYMBOL_NS(max_98373_spk_codec_init, SND_SOC_INTEL_SOF_MAXIM_COMMON);
 
-void sof_max98373_codec_conf(struct snd_soc_card *card)
+void max_98373_set_codec_conf(struct snd_soc_card *card)
 {
 	card->codec_conf = max_98373_codec_conf;
 	card->num_configs = ARRAY_SIZE(max_98373_codec_conf);
 }
+EXPORT_SYMBOL_NS(max_98373_set_codec_conf, SND_SOC_INTEL_SOF_MAXIM_COMMON);
+
+MODULE_DESCRIPTION("ASoC Intel SOF Maxim helpers");
+MODULE_LICENSE("GPL");

sound/soc/intel/boards/sof_maxim_common.h

@@ -20,8 +20,8 @@ extern struct snd_soc_dai_link_component max_98373_components[2];
 extern struct snd_soc_ops max_98373_ops;
 extern const struct snd_soc_dapm_route max_98373_dapm_routes[];
 
-int max98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd);
-void sof_max98373_codec_conf(struct snd_soc_card *card);
-int max98373_trigger(struct snd_pcm_substream *substream, int cmd);
+int max_98373_spk_codec_init(struct snd_soc_pcm_runtime *rtd);
+void max_98373_set_codec_conf(struct snd_soc_card *card);
+int max_98373_trigger(struct snd_pcm_substream *substream, int cmd);
 
 #endif /* __SOF_MAXIM_COMMON_H */

sound/soc/intel/boards/sof_rt5682.c

@@ -756,7 +756,7 @@ static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
 				SOF_MAX98373_SPEAKER_AMP_PRESENT) {
 			links[id].codecs = max_98373_components;
 			links[id].num_codecs = ARRAY_SIZE(max_98373_components);
-			links[id].init = max98373_spk_codec_init;
+			links[id].init = max_98373_spk_codec_init;
 			links[id].ops = &max_98373_ops;
 			/* feedback stream */
 			links[id].dpcm_capture = 1;
@@ -902,7 +902,7 @@ static int sof_audio_probe(struct platform_device *pdev)
 		sof_audio_card_rt5682.num_links++;
 
 	if (sof_rt5682_quirk & SOF_MAX98373_SPEAKER_AMP_PRESENT)
-		sof_max98373_codec_conf(&sof_audio_card_rt5682);
+		max_98373_set_codec_conf(&sof_audio_card_rt5682);
 	else if (sof_rt5682_quirk & SOF_RT1011_SPEAKER_AMP_PRESENT)
 		sof_rt1011_codec_conf(&sof_audio_card_rt5682);
 	else if (sof_rt5682_quirk & SOF_RT1015P_SPEAKER_AMP_PRESENT)
@@ -1055,3 +1055,4 @@ MODULE_ALIAS("platform:jsl_rt5682_rt1015p");
 MODULE_ALIAS("platform:adl_max98373_rt5682");
 MODULE_ALIAS("platform:adl_max98357a_rt5682");
 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
+MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_MAXIM_COMMON);

sound/soc/intel/boards/sof_sdw.c

@@ -1318,3 +1318,4 @@ MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:sof_sdw");
 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
+MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_MAXIM_COMMON);

sound/soc/intel/boards/sof_sdw_max98373.c

@@ -64,7 +64,7 @@ static int max98373_sdw_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 		/* enable max98373 first */
-		ret = max98373_trigger(substream, cmd);
+		ret = max_98373_trigger(substream, cmd);
 		if (ret < 0)
 			break;
 
@@ -77,7 +77,7 @@ static int max98373_sdw_trigger(struct snd_pcm_substream *substream, int cmd)
 		if (ret < 0)
 			break;
 
-		ret = max98373_trigger(substream, cmd);
+		ret = max_98373_trigger(substream, cmd);
 		break;
 	default:
 		ret = -EINVAL;