Dne 20. 06. 20 v 14:04 Vijendar Mukunda napsal(a):
Add logic to check DMIC hardware exists or not on
the platform at runtime.
Add module param for overriding DMIC hardware check
at runtime.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
---
sound/soc/amd/renoir/rn-pci-acp3x.c | 29 +++++++++++++++++++++++++++++
sound/soc/amd/renoir/rn_acp3x.h | 7 +++++++
2 files changed, 36 insertions(+)
diff --git a/sound/soc/amd/renoir/rn-pci-acp3x.c b/sound/soc/amd/renoir/rn-pci-acp3x.c
index 859ed67..ef6eeba 100644
--- a/sound/soc/amd/renoir/rn-pci-acp3x.c
+++ b/sound/soc/amd/renoir/rn-pci-acp3x.c
@@ -5,6 +5,7 @@
//Copyright 2020 Advanced Micro Devices, Inc.
#include <linux/pci.h>
+#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/delay.h>
@@ -18,6 +19,16 @@ static int acp_power_gating;
module_param(acp_power_gating, int, 0644);
MODULE_PARM_DESC(acp_power_gating, "Enable acp power gating");
+/**
+ * dmic_acpi_check = 0 - Skips DMIC device creation and returns probe failure
+ * = 1 - Assumes that platform has DMIC support and skips ACPI
+ * method check
+ * = 2 - Checks ACPI method to know DMIC hardware status runtime
+ */
+static int dmic_acpi_check = ACP_DMIC_AUTO;
I would prefer to have 0 = auto, 1 = force, 2 = skip to put the
dmic_acpi_check variable to BSS. Otherwise the patch looks good. Thanks.
Jaroslav
--
Jaroslav Kysela <perex@xxxxxxxx>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
