From: Simon Trimmer simont@opensource.cirrus.com

[ Upstream commit d339131bf02d4ed918415574082caf5e8af6e664 ]

The codec should be cleared when the amp driver is unbound and when resuming it should be tested to prevent loading firmware into the device and ALSA in a partially configured system state.

Signed-off-by: Simon Trimmer simont@opensource.cirrus.com Link: https://lore.kernel.org/r/20240531112716.25323-1-simont@opensource.cirrus.co... Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- sound/pci/hda/cs35l56_hda.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c index 15e20d9261393..77e8da7dffc6a 100644 --- a/sound/pci/hda/cs35l56_hda.c +++ b/sound/pci/hda/cs35l56_hda.c @@ -702,6 +702,8 @@ static void cs35l56_hda_unbind(struct device *dev, struct device *master, void * if (comps[cs35l56->index].dev == dev) memset(&comps[cs35l56->index], 0, sizeof(*comps));

+ cs35l56->codec = NULL; + dev_dbg(cs35l56->base.dev, "Unbound\n"); }

@@ -807,6 +809,9 @@ static int cs35l56_hda_system_resume(struct device *dev)

cs35l56->suspended = false;

+ if (!cs35l56->codec) + return 0; + ret = cs35l56_is_fw_reload_needed(&cs35l56->base); dev_dbg(cs35l56->base.dev, "fw_reload_needed: %d\n", ret); if (ret > 0) {