From: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
The firmware libraries are not supported by IPC3, the fw_lib_path is not
a valid parameter and it is always NULL.
Do not create the debugfs file for IPC3 at all as it is not applicable.
With IPC4 some vendors/platforms might not support loadable libraries and
the fw_lib_prefix is left to NULL to indicate this.
Handle such case with allocating "Not supported" string.
Reviewed-by: Marc Herbert <marc.herbert@xxxxxxxxx>
Fixes: 17f4041244e6 ("ASoC: SOF: debug: show firmware/topology prefix/names")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/debug.c | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index cf282c8b18af..bf635cc96ede 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -326,8 +326,27 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev)
debugfs_create_str("fw_path", 0444, fw_profile,
(char **)&plat_data->fw_filename_prefix);
- debugfs_create_str("fw_lib_path", 0444, fw_profile,
- (char **)&plat_data->fw_lib_prefix);
+ /* library path is not valid for IPC3 */
+ if (plat_data->ipc_type != SOF_IPC_TYPE_3) {
+ /*
+ * fw_lib_prefix can be NULL if the vendor/platform does not
+ * support loadable libraries
+ */
+ if (plat_data->fw_lib_prefix) {
+ debugfs_create_str("fw_lib_path", 0444, fw_profile,
+ (char **)&plat_data->fw_lib_prefix);
+ } else {
+ static char *fw_lib_path;
+
+ fw_lib_path = devm_kasprintf(sdev->dev, GFP_KERNEL,
+ "Not supported");
+ if (!fw_lib_path)
+ return -ENOMEM;
+
+ debugfs_create_str("fw_lib_path", 0444, fw_profile,
+ (char **)&fw_lib_path);
+ }
+ }
debugfs_create_str("tplg_path", 0444, fw_profile,
(char **)&plat_data->tplg_filename_prefix);
debugfs_create_str("fw_name", 0444, fw_profile,
--
2.40.1
