Received-SPF: pass (google.com: domain of linux-kernel+bounces-172345-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Richard Fitzgerald <rf@opensource.cirrus.com>,
	Mark Brown <broonie@kernel.org>,
	Sasha Levin <sashal@kernel.org>,
	james.schulman@cirrus.com,
	david.rhodes@cirrus.com,
	perex@perex.cz,
	tiwai@suse.com,
	alsa-devel@alsa-project.org,
	patches@opensource.cirrus.com,
	linux-sound@vger.kernel.org
Subject: [PATCH AUTOSEL 6.8 03/52] ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot()
Date: Tue,  7 May 2024 19:06:29 -0400
Message-ID: <20240507230800.392128-3-sashal@kernel.org>
In-Reply-To: <20240507230800.392128-1-sashal@kernel.org>
References: <20240507230800.392128-1-sashal@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

From: Richard Fitzgerald <rf@opensource.cirrus.com>

[ Upstream commit 73580ec607dfe125b140ed30c7c0a074db78c558 ]

Adds calls to disable regmap cache-only after a successful return from
cs35l56_wait_for_firmware_boot().

This is to prepare for a change in the shared ASoC module that will
leave regmap in cache-only mode after cs35l56_system_reset(). This is
to prevent register accesses going to the hardware while it is
rebooting.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408101803.43183-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/pci/hda/cs35l56_hda.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index 43a445bd961fb..de58a953b48d2 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -629,6 +629,8 @@ static int cs35l56_hda_fw_load(struct cs35l56_hda *cs35l56)
 		ret = cs35l56_wait_for_firmware_boot(&cs35l56->base);
 		if (ret)
 			goto err_powered_up;
+
+		regcache_cache_only(cs35l56->base.regmap, false);
 	}
 
 	/* Disable auto-hibernate so that runtime_pm has control */
@@ -978,6 +980,8 @@ int cs35l56_hda_common_probe(struct cs35l56_hda *cs35l56, int id)
 	if (ret)
 		goto err;
 
+	regcache_cache_only(cs35l56->base.regmap, false);
+
 	ret = cs35l56_set_patch(&cs35l56->base);
 	if (ret)
 		goto err;
-- 
2.43.0