[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20240408101803.43183-3-rf@opensource.cirrus.com>
Date: Mon, 8 Apr 2024 11:18:01 +0100
From: Richard Fitzgerald <rf@...nsource.cirrus.com>
To: <broonie@...nel.org>, <tiwai@...e.com>
CC: <linux-sound@...r.kernel.org>, <alsa-devel@...a-project.org>,
<linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
"Richard
Fitzgerald" <rf@...nsource.cirrus.com>
Subject: [PATCH 2/4] ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot()
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@...nsource.cirrus.com>
---
This will have to go through Mark's tree because it's necessary
to make this change to the HDA driver before applying patch #3 in
this series.
---
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 1a3f84599cb5..558c1f38fe97 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -644,6 +644,8 @@ 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 */
@@ -1002,6 +1004,8 @@ int cs35l56_hda_common_probe(struct cs35l56_hda *cs35l56, int hid, int id)
if (ret)
goto err;
+ regcache_cache_only(cs35l56->base.regmap, false);
+
ret = cs35l56_set_patch(&cs35l56->base);
if (ret)
goto err;
--
2.39.2
Powered by blists - more mailing lists