ASoC: amd: renoir: Add check for acp configuration flags

We have SOF and generic ACP support enabled for Renoir platforms
on some machines. Since we have same PCI id used for probing, add
check for machine configuration flag to avoid conflict with newer
pci drivers. Such machine flag has been initialized via dmi match
on few Chrome machines. If no flag is specified probe and register
older platform device.
Signed-off-by: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
Link: https://lore.kernel.org/r/20220117115854.455995-7-AjitKumar.Pandey@amd.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/Kconfig

@@ -44,6 +44,7 @@ config SND_SOC_AMD_RV_RT5682_MACH
 
 config SND_SOC_AMD_RENOIR
 	tristate "AMD Audio Coprocessor - Renoir support"
+	select SND_AMD_ACP_CONFIG
 	depends on X86 && PCI
 	help
 	 This option enables ACP support for Renoir platform

sound/soc/amd/renoir/rn-pci-acp3x.c

@@ -212,10 +212,15 @@ static int snd_rn_acp_probe(struct pci_dev *pci,
 	acpi_integer dmic_status;
 #endif
 	const struct dmi_system_id *dmi_id;
-	unsigned int irqflags;
+	unsigned int irqflags, flag;
 	int ret, index;
 	u32 addr;
 
+	/* Return if acp config flag is defined */
+	flag = snd_amd_acp_find_config(pci);
+	if (flag)
+		return -ENODEV;
+
 	/* Renoir device check */
 	if (pci->revision != 0x01)
 		return -ENODEV;

sound/soc/amd/renoir/rn_acp3x.h

@@ -88,3 +88,6 @@ static inline void rn_writel(u32 val, void __iomem *base_addr)
 {
 	writel(val, base_addr - ACP_PHY_BASE_ADDRESS);
 }
+
+/* Machine configuration */
+int snd_amd_acp_find_config(struct pci_dev *pci);