Introduce sof_of_machine_select

Merge series from Chunxu Li <chunxu.li@mediatek.com>:

In these patches, we introduce function sof_of_machine_select for SOF

include/sound/sof.h

@@ -89,6 +89,7 @@ struct snd_sof_pdata {
 	/* machine */
 	struct platform_device *pdev_mach;
 	const struct snd_soc_acpi_mach *machine;
+	const struct snd_sof_of_mach *of_machine;
 
 	void *hw_pdata;
 
@@ -102,6 +103,7 @@ struct snd_sof_pdata {
 struct sof_dev_desc {
 	/* list of machines using this configuration */
 	struct snd_soc_acpi_mach *machines;
+	struct snd_sof_of_mach *of_machines;
 
 	/* alternate list of machines using this configuration */
 	struct snd_soc_acpi_mach *alt_machines;

sound/soc/sof/mediatek/mt8186/mt8186.c

@@ -515,7 +515,16 @@ static struct snd_sof_dsp_ops sof_mt8186_ops = {
 			SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
 };
 
+static struct snd_sof_of_mach sof_mt8186_machs[] = {
+	{
+		.compatible = "mediatek,mt8186",
+		.sof_tplg_filename = "sof-mt8186.tplg",
+	},
+	{}
+};
+
 static const struct sof_dev_desc sof_of_mt8186_desc = {
+	.of_machines = sof_mt8186_machs,
 	.ipc_supported_mask	= BIT(SOF_IPC),
 	.ipc_default		= SOF_IPC,
 	.default_fw_path = {

sound/soc/sof/pcm.c

@@ -13,6 +13,7 @@
 #include <linux/pm_runtime.h>
 #include <sound/pcm_params.h>
 #include <sound/sof.h>
+#include "sof-of-dev.h"
 #include "sof-priv.h"
 #include "sof-audio.h"
 #include "sof-utils.h"
@@ -655,7 +656,12 @@ void snd_sof_new_platform_drv(struct snd_sof_dev *sdev)
 	struct snd_sof_pdata *plat_data = sdev->pdata;
 	const char *drv_name;
 
-	drv_name = plat_data->machine->drv_name;
+	if (plat_data->machine)
+		drv_name = plat_data->machine->drv_name;
+	else if (plat_data->of_machine)
+		drv_name = plat_data->of_machine->drv_name;
+	else
+		drv_name = NULL;
 
 	pd->name = "sof-audio-component";
 	pd->probe = sof_pcm_probe;

sound/soc/sof/sof-audio.c

@@ -10,6 +10,7 @@
 
 #include <linux/bitfield.h>
 #include "sof-audio.h"
+#include "sof-of-dev.h"
 #include "ops.h"
 
 static void sof_reset_route_setup_status(struct snd_sof_dev *sdev, struct snd_sof_widget *widget)

sound/soc/sof/sof-of-dev.h

@@ -9,6 +9,13 @@
 #ifndef __SOUND_SOC_SOF_OF_H
 #define __SOUND_SOC_SOF_OF_H
 
+struct snd_sof_of_mach {
+	const char *compatible;
+	const char *drv_name;
+	const char *fw_filename;
+	const char *sof_tplg_filename;
+};
+
 extern const struct dev_pm_ops sof_of_pm;
 
 int sof_of_probe(struct platform_device *pdev);