Allow for the phantom persistence config item to not exist. This is
needed for the Scarlett Gen 4 series.
Signed-off-by: Geoffrey D. Bennett <g@xxxxx>
---
sound/usb/mixer_scarlett2.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c
index 88571abd4a8d..95a9b5c41b3d 100644
--- a/sound/usb/mixer_scarlett2.c
+++ b/sound/usb/mixer_scarlett2.c
@@ -2621,11 +2621,15 @@ static int scarlett2_update_input_other(struct usb_mixer_interface *mixer)
if (err < 0)
return err;
- err = scarlett2_usb_get_config(
- mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
- 1, &private->phantom_persistence);
- if (err < 0)
- return err;
+ if (scarlett2_has_config_item(
+ private,
+ SCARLETT2_CONFIG_PHANTOM_PERSISTENCE)) {
+ err = scarlett2_usb_get_config(
+ mixer, SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
+ 1, &private->phantom_persistence);
+ if (err < 0)
+ return err;
+ }
}
return 0;
@@ -3779,7 +3783,9 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
return err;
}
}
- if (info->phantom_count) {
+ if (info->phantom_count &&
+ scarlett2_has_config_item(private,
+ SCARLETT2_CONFIG_PHANTOM_PERSISTENCE)) {
err = scarlett2_add_new_ctl(
mixer, &scarlett2_phantom_persistence_ctl, 0, 1,
"Phantom Power Persistence Capture Switch", NULL);
--
2.43.0
