ASoC: Intel: soc-acpi: quirk topology filename dynamically

Different topology filenames may be required depending on which SSP is
used, and whether or not digital mics are present.

This patch adds a tplg_quirk_mask and in the case of the SOF driver
adds the relevant configurations.

This is a short-term solution to the ES8336 support issues.

In a long-term solution, we would need an interface where the machine
driver or platform driver have the ability to alter the topology
hard-coded low-level hardware support, e.g. by substituting an
interface for another, or disabling an interface that is not supported
on a given skew.

BugLink: https://github.com/thesofproject/linux/issues/3248
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220308192610.392950-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-acpi.h

@@ -125,6 +125,24 @@ struct snd_soc_acpi_link_adr {
 	const struct snd_soc_acpi_adr_device *adr_d;
 };
 
+/*
+ * when set the topology uses the -ssp<N> suffix, where N is determined based on
+ * BIOS or DMI information
+ */
+#define SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER BIT(0)
+
+/*
+ * when more than one SSP is reported in the link mask, use the most significant.
+ * This choice was found to be valid on platforms with ES8336 codecs.
+ */
+#define SND_SOC_ACPI_TPLG_INTEL_SSP_MSB BIT(1)
+
+/*
+ * when set the topology uses the -dmic<N>ch suffix, where N is determined based on
+ * BIOS or DMI information
+ */
+#define SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER BIT(2)
+
 /**
  * snd_soc_acpi_mach: ACPI-based machine descriptor. Most of the fields are
  * related to the hardware, except for the firmware and topology file names.
@@ -146,6 +164,7 @@ struct snd_soc_acpi_link_adr {
  * @pdata: intended for platform data or machine specific-ops. This structure
  *  is not constant since this field may be updated at run-time
  * @sof_tplg_filename: Sound Open Firmware topology file name, if enabled
+ * @tplg_quirk_mask: quirks to select different topology files dynamically
  */
 /* Descriptor for SST ASoC machine driver */
 struct snd_soc_acpi_mach {
@@ -161,6 +180,7 @@ struct snd_soc_acpi_mach {
 	void *pdata;
 	struct snd_soc_acpi_mach_params mach_params;
 	const char *sof_tplg_filename;
+	const u32 tplg_quirk_mask;
 };
 
 #define SND_SOC_ACPI_MAX_CODECS 3

sound/soc/intel/common/soc-acpi-intel-bxt-match.c

@@ -80,7 +80,10 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_bxt_machines[] = {
 	{
 		.id = "ESSX8336",
 		.drv_name = "sof-essx8336",
-		.sof_tplg_filename = "sof-apl-es8336.tplg",
+		.sof_tplg_filename = "sof-apl-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
 	},
 	{},
 };

sound/soc/intel/common/soc-acpi-intel-cml-match.c

@@ -78,7 +78,10 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_cml_machines[] = {
 	{
 		.id = "ESSX8336",
 		.drv_name = "sof-essx8336",
-		.sof_tplg_filename = "sof-cml-es8336.tplg",
+		.sof_tplg_filename = "sof-cml-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
 	},
 	{},
 };

sound/soc/intel/common/soc-acpi-intel-glk-match.c

@@ -55,7 +55,10 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_glk_machines[] = {
 	{
 		.id = "ESSX8336",
 		.drv_name = "sof-essx8336",
-		.sof_tplg_filename = "sof-glk-es8336.tplg",
+		.sof_tplg_filename = "sof-glk-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
 	},
 	{},
 };

sound/soc/intel/common/soc-acpi-intel-jsl-match.c

@@ -83,7 +83,10 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_jsl_machines[] = {
 	{
 		.id = "ESSX8336",
 		.drv_name = "sof-essx8336",
-		.sof_tplg_filename = "sof-jsl-es8336.tplg",
+		.sof_tplg_filename = "sof-jsl-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
 	},
 	{},
 };

sound/soc/intel/common/soc-acpi-intel-tgl-match.c

@@ -393,7 +393,10 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_tgl_machines[] = {
 	{
 		.id = "ESSX8336",
 		.drv_name = "sof-essx8336",
-		.sof_tplg_filename = "sof-tgl-es8336.tplg",
+		.sof_tplg_filename = "sof-tgl-es8336", /* the tplg suffix is added at run time */
+		.tplg_quirk_mask = SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER |
+					SND_SOC_ACPI_TPLG_INTEL_SSP_MSB |
+					SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER,
 	},
 	{
 		.id = "10EC1308",

sound/soc/sof/intel/hda.c

@@ -1393,9 +1393,12 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 	struct snd_sof_pdata *sof_pdata = sdev->pdata;
 	const struct sof_dev_desc *desc = sof_pdata->desc;
 	struct snd_soc_acpi_mach *mach;
+	const char *tplg_filename;
 
 	mach = snd_soc_acpi_find_machine(desc->machines);
 	if (mach) {
+		bool add_extension = false;
+
 		/*
 		 * If tplg file name is overridden, use it instead of
 		 * the one set in mach table
@@ -1406,6 +1409,21 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 		/* report to machine driver if any DMICs are found */
 		mach->mach_params.dmic_num = check_dmic_num(sdev);
 
+		if (mach->tplg_quirk_mask & SND_SOC_ACPI_TPLG_INTEL_DMIC_NUMBER &&
+		    mach->mach_params.dmic_num) {
+			tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
+						       "%s%s%d%s",
+						       sof_pdata->tplg_filename,
+						       "-dmic",
+						       mach->mach_params.dmic_num,
+						       "ch");
+			if (!tplg_filename)
+				return NULL;
+
+			sof_pdata->tplg_filename = tplg_filename;
+			add_extension = true;
+		}
+
 		if (mach->link_mask) {
 			mach->mach_params.links = mach->links;
 			mach->mach_params.link_mask = mach->link_mask;
@@ -1413,6 +1431,40 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 
 		/* report SSP link mask to machine driver */
 		mach->mach_params.i2s_link_mask = check_nhlt_ssp_mask(sdev);
+
+		if (mach->tplg_quirk_mask & SND_SOC_ACPI_TPLG_INTEL_SSP_NUMBER &&
+		    mach->mach_params.i2s_link_mask) {
+			int ssp_num;
+
+			if (hweight_long(mach->mach_params.i2s_link_mask) > 1 &&
+			    !(mach->tplg_quirk_mask & SND_SOC_ACPI_TPLG_INTEL_SSP_MSB))
+				dev_warn(sdev->dev, "More than one SSP exposed by NHLT, choosing MSB\n");
+
+			/* fls returns 1-based results, SSPs indices are 0-based */
+			ssp_num = fls(mach->mach_params.i2s_link_mask) - 1;
+
+			tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
+						       "%s%s%d",
+						       sof_pdata->tplg_filename,
+						       "-ssp",
+						       ssp_num);
+			if (!tplg_filename)
+				return NULL;
+
+			sof_pdata->tplg_filename = tplg_filename;
+			add_extension = true;
+		}
+
+		if (add_extension) {
+			tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
+						       "%s%s",
+						       sof_pdata->tplg_filename,
+						       ".tplg");
+			if (!tplg_filename)
+				return NULL;
+
+			sof_pdata->tplg_filename = tplg_filename;
+		}
 	}
 
 	/*