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ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)

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Users reported that some Lenovo AMD platforms do not have ACP microphone,
but the BIOS advertises it via ACPI.

This patch create a simple DMI table, where those machines with the broken
BIOS can be added. The DMI description for Lenovo IdeaPad 5 and
IdeaPad Flex 5 devices are added there.

Also describe the dmic_acpi_check kernel module parameter in a more
understandable way.

Cc: <stable@kernel.org>
Cc: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20201208171200.2737620-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jaroslav Kysela 2020-12-08 18:12:00 +01:00 committed by Mark Brown
parent 55d8e6a85b
commit 718c406e1f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 23 additions and 5 deletions
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28
sound/soc/amd/renoir/rn-pci-acp3x.c
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@ -6,6 +6,7 @@
#include <linux/pci.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
@ -20,14 +21,13 @@ module_param(acp_power_gating, int, 0644);
MODULE_PARM_DESC(acp_power_gating, "Enable acp power gating");
/**
* dmic_acpi_check = -1 - Checks ACPI method to know DMIC hardware status runtime
* = 0 - Skips the DMIC device creation and returns probe failure
* = 1 - Assumes that platform has DMIC support and skips ACPI
* method check
* dmic_acpi_check = -1 - Use ACPI/DMI method to detect the DMIC hardware presence at runtime
* = 0 - Skip the DMIC device creation and return probe failure
* = 1 - Force DMIC support
*/
static int dmic_acpi_check = ACP_DMIC_AUTO;
module_param(dmic_acpi_check, bint, 0644);
MODULE_PARM_DESC(dmic_acpi_check, "checks Dmic hardware runtime");
MODULE_PARM_DESC(dmic_acpi_check, "Digital microphone presence (-1=auto, 0=none, 1=force)");
struct acp_dev_data {
void __iomem *acp_base;
@ -163,6 +163,17 @@ static int rn_acp_deinit(void __iomem *acp_base)
return 0;
}
static const struct dmi_system_id rn_acp_quirk_table[] = {
{
/* Lenovo IdeaPad Flex 5 14ARE05, IdeaPad 5 15ARE05 */
.matches = {
DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
DMI_EXACT_MATCH(DMI_BOARD_NAME, "LNVNB161216"),
}
},
{}
};
static int snd_rn_acp_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
@ -172,6 +183,7 @@ static int snd_rn_acp_probe(struct pci_dev *pci,
acpi_handle handle;
acpi_integer dmic_status;
#endif
const struct dmi_system_id *dmi_id;
unsigned int irqflags;
int ret, index;
u32 addr;
@ -236,6 +248,12 @@ static int snd_rn_acp_probe(struct pci_dev *pci,
goto de_init;
}
#endif
dmi_id = dmi_first_match(rn_acp_quirk_table);
if (dmi_id && !dmi_id->driver_data) {
dev_info(&pci->dev, "ACPI settings override using DMI (ACP mic is not present)");
ret = -ENODEV;
goto de_init;
}
}
adata->res = devm_kzalloc(&pci->dev,