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authorCurtis Malainey <cujomalainey@chromium.org>2022-12-20 14:56:29 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-02-01 08:34:28 +0100
commitc658a6d5501dbd321cd561d2b89f6d3461c5b031 (patch)
tree9e5ff31a0b370533c128a8943ee8e992809fba3b /sound
parent4e491a1373a7c87e292e62cd7e2edd8469a81055 (diff)
downloadlinux-c658a6d5501dbd321cd561d2b89f6d3461c5b031.tar.gz
ASoC: SOF: Add FW state to debugfs
[ Upstream commit 9a9134fd56f6ba614ff7b2b3b0bac0bf1d0dc0c9 ]

Allow system health detection mechanisms to check the FW state, this
will allow them to check if the FW is in its "crashed" state going
forward to help automatically diagnose driver state.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20221220125629.8469-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/sof/debug.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index d9a3ce7b69e1..ade0507328af 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -353,7 +353,9 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev)
 			return err;
 	}
 
-	return 0;
+	return snd_sof_debugfs_buf_item(sdev, &sdev->fw_state,
+					sizeof(sdev->fw_state),
+					"fw_state", 0444);
 }
 EXPORT_SYMBOL_GPL(snd_sof_dbg_init);