linux-kernel - [PATCH] ASoC: tegra: Revert fix for uninitialized flat cache warning in tegra210

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>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251217132524.2844499-1-sheetal@nvidia.com>
Date: Wed, 17 Dec 2025 18:55:24 +0530
From: "Sheetal ." <sheetal@...dia.com>
To: <linux-sound@...r.kernel.org>, Mark Brown <broonie@...nel.org>
CC: Liam Girdwood <lgirdwood@...il.com>, Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>, Charles Keepax
	<ckeepax@...nsource.cirrus.com>, <linux-tegra@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, sheetal <sheetal@...dia.com>
Subject: [PATCH] ASoC: tegra: Revert fix for uninitialized flat cache warning in tegra210_ahub

From: sheetal <sheetal@...dia.com>

Commit 4d4021b0bbd1 ("ASoC: tegra: Fix uninitialized flat cache warning
in tegra210_ahub") attempted to fix the uninitialized flat cache warning
that is observed for the Tegra210 AHUB driver. However, the change broke
various audio tests because an -EBUSY error is returned when accessing
registers from cache before they are read from hardware. Revert this
change for now, until a proper fix is available.

Fixes: 4d4021b0bbd1 ("ASoC: tegra: Fix uninitialized flat cache warning in tegra210_ahub")
Signed-off-by: sheetal <sheetal@...dia.com>
---
 sound/soc/tegra/tegra210_ahub.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/soc/tegra/tegra210_ahub.c b/sound/soc/tegra/tegra210_ahub.c
index 261d9067d27b..e795907a3963 100644
--- a/sound/soc/tegra/tegra210_ahub.c
+++ b/sound/soc/tegra/tegra210_ahub.c
@@ -2077,7 +2077,7 @@ static const struct regmap_config tegra210_ahub_regmap_config = {
 	.val_bits		= 32,
 	.reg_stride		= 4,
 	.max_register		= TEGRA210_MAX_REGISTER_ADDR,
-	.cache_type		= REGCACHE_FLAT_S,
+	.cache_type		= REGCACHE_FLAT,
 };
 
 static const struct regmap_config tegra186_ahub_regmap_config = {
@@ -2085,7 +2085,7 @@ static const struct regmap_config tegra186_ahub_regmap_config = {
 	.val_bits		= 32,
 	.reg_stride		= 4,
 	.max_register		= TEGRA186_MAX_REGISTER_ADDR,
-	.cache_type		= REGCACHE_FLAT_S,
+	.cache_type		= REGCACHE_FLAT,
 };
 
 static const struct regmap_config tegra264_ahub_regmap_config = {
@@ -2094,7 +2094,7 @@ static const struct regmap_config tegra264_ahub_regmap_config = {
 	.reg_stride		= 4,
 	.writeable_reg		= tegra264_ahub_wr_reg,
 	.max_register		= TEGRA264_MAX_REGISTER_ADDR,
-	.cache_type		= REGCACHE_FLAT_S,
+	.cache_type		= REGCACHE_FLAT,
 };
 
 static const struct tegra_ahub_soc_data soc_data_tegra210 = {
-- 
2.34.1