ASoC: amd: Passing card structure based on codec

Passing specific snd_soc_card structure depending on the ACPI ID.
In future we can add other IDs in the ACPI table and pass the structure.
Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
Link: https://lore.kernel.org/r/20200728160255.31020-3-Vishnuvardhanrao.Ravulapati@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp3x-rt5682-max9836.c

@@ -30,6 +30,7 @@ static struct snd_soc_jack pco_jack;
 static struct clk *rt5682_dai_wclk;
 static struct clk *rt5682_dai_bclk;
 static struct gpio_desc *dmic_sel;
+void *soc_is_rltk_max(struct device *dev);
 
 static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
 {
@@ -326,18 +327,32 @@ static struct snd_soc_card acp3x_5682 = {
 	.num_controls = ARRAY_SIZE(acp3x_5682_mc_controls),
 };
 
+void *soc_is_rltk_max(struct device *dev)
+{
+	const struct acpi_device_id *match;
+
+	match = acpi_match_device(dev->driver->acpi_match_table, dev);
+	if (!match)
+		return NULL;
+	return (void *)match->driver_data;
+}
+
 static int acp3x_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct snd_soc_card *card;
 	struct acp3x_platform_info *machine;
+	struct device *dev = &pdev->dev;
+
+	card = (struct snd_soc_card *)soc_is_rltk_max(dev);
+	if (!card)
+		return -ENODEV;
 
 	machine = devm_kzalloc(&pdev->dev, sizeof(*machine), GFP_KERNEL);
 	if (!machine)
 		return -ENOMEM;
 
-	card = &acp3x_5682;
-	acp3x_5682.dev = &pdev->dev;
+	card->dev = &pdev->dev;
 	platform_set_drvdata(pdev, card);
 	snd_soc_card_set_drvdata(card, machine);
 
@@ -348,18 +363,18 @@ static int acp3x_probe(struct platform_device *pdev)
 		return PTR_ERR(dmic_sel);
 	}
 
-	ret = devm_snd_soc_register_card(&pdev->dev, &acp3x_5682);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret) {
 		dev_err(&pdev->dev,
 				"devm_snd_soc_register_card(%s) failed: %d\n",
-				acp3x_5682.name, ret);
+				card->name, ret);
 		return ret;
 	}
 	return 0;
 }
 
 static const struct acpi_device_id acp3x_audio_acpi_match[] = {
-	{ "AMDI5682", 0 },
+	{ "AMDI5682", (unsigned long)&acp3x_5682},
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, acp3x_audio_acpi_match);