staging: greybus: audio: remove unused struct gb_mixer_control

'gb_mixer_control' is unused since the original
commit 6339d2322c47 ("greybus: audio: Add topology parser for GB
codec").

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20240529001807.262955-1-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 5dc4721105d445ba120a758345e07d2e3c58f42f..6ca938dca4fd1986f2560da41c9d0db525201b4a 100644 (file)
--- a/drivers/staging/greybus/audio_topology.c
+++ b/drivers/staging/greybus/audio_topology.c
@@ -10,12 +10,6 @@
 
 #define GBAUDIO_INVALID_ID     0xFF
 
-/* mixer control */
-struct gb_mixer_control {
-       int min, max;
-       unsigned int reg, rreg, shift, rshift, invert;
-};
-
 struct gbaudio_ctl_pvt {
        unsigned int ctl_id;
        unsigned int data_cport;