ASoC: amd: Add check for acp config flags

We have SOF and generic ACP support enabled for Rembrandt and
pheonix 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: Syed Saba Kareem <Syed.SabaKareem@amd.com>
Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230412091638.1158901-1-Syed.SabaKareem@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/Kconfig

@@ -90,6 +90,7 @@ config SND_SOC_AMD_VANGOGH_MACH
 
 config SND_SOC_AMD_ACP6x
 	tristate "AMD Audio Coprocessor-v6.x Yellow Carp support"
+	select SND_AMD_ACP_CONFIG
 	depends on X86 && PCI
 	help
 	  This option enables Audio Coprocessor i.e ACP v6.x support on
@@ -130,6 +131,7 @@ config SND_SOC_AMD_RPL_ACP6x
 
 config SND_SOC_AMD_PS
         tristate "AMD Audio Coprocessor-v6.3 Pink Sardine support"
+	select SND_AMD_ACP_CONFIG
         depends on X86 && PCI && ACPI
         help
           This option enables Audio Coprocessor i.e ACP v6.3 support on

sound/soc/amd/ps/acp63.h

@@ -111,3 +111,5 @@ struct acp63_dev_data {
 	u16 pdev_count;
 	u16 pdm_dev_index;
 };
+
+int snd_amd_acp_find_config(struct pci_dev *pci);

sound/soc/amd/ps/pci-ps.c

@@ -247,11 +247,17 @@ static int snd_acp63_probe(struct pci_dev *pci,
 {
 	struct acp63_dev_data *adata;
 	u32 addr;
-	u32 irqflags;
+	u32 irqflags, flag;
 	int val;
 	int ret;
 
 	irqflags = IRQF_SHARED;
+
+	/* Return if acp config flag is defined */
+	flag = snd_amd_acp_find_config(pci);
+	if (flag)
+		return -ENODEV;
+
 	/* Pink Sardine device check */
 	switch (pci->revision) {
 	case 0x63:

sound/soc/amd/yc/acp6x.h

@@ -105,3 +105,6 @@ static inline void acp6x_writel(u32 val, void __iomem *base_addr)
 {
 	writel(val, base_addr - ACP6x_PHY_BASE_ADDRESS);
 }
+
+int snd_amd_acp_find_config(struct pci_dev *pci);
+

sound/soc/amd/yc/pci-acp6x.c

@@ -149,10 +149,16 @@ static int snd_acp6x_probe(struct pci_dev *pci,
 	int index = 0;
 	int val = 0x00;
 	u32 addr;
-	unsigned int irqflags;
+	unsigned int irqflags, flag;
 	int ret;
 
 	irqflags = IRQF_SHARED;
+
+	/* Return if acp config flag is defined */
+	flag = snd_amd_acp_find_config(pci);
+	if (flag)
+		return -ENODEV;
+
 	/* Yellow Carp device check */
 	switch (pci->revision) {
 	case 0x60: