linux-kernel - [PATCH 14/14] ASoC: amd: acp: Fix for enabling DMIC on acp platforms via

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20250310104601.7325-15-venkataprasad.potturu@amd.com>
Date: Mon, 10 Mar 2025 16:16:01 +0530
From: Venkata Prasad Potturu <venkataprasad.potturu@....com>
To: <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC: <Vijendar.Mukunda@....com>, <mario.limonciello@....com>,
	<Basavaraj.Hiregoudar@....com>, <Sunil-kumar.Dommati@....com>,
	<syed.sabakareem@....com>, Venkata Prasad Potturu
	<venkataprasad.potturu@....com>, Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, Jeff Johnson
	<quic_jjohnson@...cinc.com>, Greg KH <gregkh@...uxfoundation.org>, "Peter
 Zijlstra" <peterz@...radead.org>, "open list:SOUND - SOC LAYER / DYNAMIC
 AUDIO POWER MANAGEM..." <linux-sound@...r.kernel.org>, open list
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 14/14] ASoC: amd: acp: Fix for enabling DMIC on acp platforms via _DSD entry

Add condition check to register ACP PDM sound card by reading
_WOV acpi entry.

Fixes: 09068d624c49 ("ASoC: amd: acp: fix for acp platform device creation failure")

Signed-off-by: Venkata Prasad Potturu <venkataprasad.potturu@....com>
---
 sound/soc/amd/acp/acp-legacy-common.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/amd/acp/acp-legacy-common.c b/sound/soc/amd/acp/acp-legacy-common.c
index 988b7a17b2f4..255f90ca956a 100644
--- a/sound/soc/amd/acp/acp-legacy-common.c
+++ b/sound/soc/amd/acp/acp-legacy-common.c
@@ -13,6 +13,7 @@
  */
 
 #include "amd.h"
+#include <linux/acpi.h>
 #include <linux/pci.h>
 #include <linux/export.h>
 
@@ -511,7 +512,9 @@ void check_acp_config(struct pci_dev *pci, struct acp_chip_info *chip)
 {
 	struct acpi_device *pdm_dev;
 	const union acpi_object *obj;
-	u32 pdm_addr;
+	acpi_handle handle;
+	acpi_integer dmic_status;
+	u32 pdm_addr, ret;
 
 	switch (chip->acp_rev) {
 	case ACP_RN_PCI_ID:
@@ -543,6 +546,11 @@ void check_acp_config(struct pci_dev *pci, struct acp_chip_info *chip)
 						   obj->integer.value == pdm_addr)
 				chip->is_pdm_dev = true;
 		}
+
+		handle = ACPI_HANDLE(&pci->dev);
+		ret = acpi_evaluate_integer(handle, "_WOV", NULL, &dmic_status);
+		if (!ACPI_FAILURE(ret))
+			chip->is_pdm_dev = dmic_status;
 	}
 }
 EXPORT_SYMBOL_NS_GPL(check_acp_config, "SND_SOC_ACP_COMMON");
-- 
2.39.2