greybus: audio: apbridgea: Remove GET_TX/RX_DELAY message types

The 'AUDIO_APBRIDGEA_TYPE_GET_TX_DELAY' and
'AUDIO_APBRIDGEA_TYPE_GET_RX_DELAY' message types have been
removed from the AP <-> APBrigdeA Audio Protocol so remove
them from the code. Do not coalesce the message type numbers
to prevent compatibility issues between the AP and APBridgeA.

Testing Done: Played music using a speaker module

Signed-off-by: Mark Greer <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/greybus/audio_apbridgea.c

···
 }
 EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_tx_data_size);
 
-int gb_audio_apbridgea_get_tx_delay(struct gb_connection *connection,
-				    __u16 i2s_port, __u32 *delay)
-{
-	/* TODO: implement */
-	return -EOPNOTSUPP;
-}
-EXPORT_SYMBOL_GPL(gb_audio_apbridgea_get_tx_delay);
-
 int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
 				  __u16 i2s_port)
 {
···
 			    GB_APB_REQUEST_AUDIO_CONTROL, true);
 }
 EXPORT_SYMBOL_GPL(gb_audio_apbridgea_set_rx_data_size);
-
-int gb_audio_apbridgea_get_rx_delay(struct gb_connection *connection,
-				    __u16 i2s_port, __u32 *delay)
-{
-	/* TODO: implement */
-	return -EOPNOTSUPP;
-}
-EXPORT_SYMBOL_GPL(gb_audio_apbridgea_get_rx_delay);
 
 int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
 				  __u16 i2s_port)

drivers/staging/greybus/audio_apbridgea.h

···
 #define AUDIO_APBRIDGEA_TYPE_REGISTER_CPORT		0x02
 #define AUDIO_APBRIDGEA_TYPE_UNREGISTER_CPORT		0x03
 #define AUDIO_APBRIDGEA_TYPE_SET_TX_DATA_SIZE		0x04
-#define AUDIO_APBRIDGEA_TYPE_GET_TX_DELAY		0x05
+							/* 0x05 unused */
 #define AUDIO_APBRIDGEA_TYPE_PREPARE_TX			0x06
 #define AUDIO_APBRIDGEA_TYPE_START_TX			0x07
 #define AUDIO_APBRIDGEA_TYPE_STOP_TX			0x08
 #define AUDIO_APBRIDGEA_TYPE_SHUTDOWN_TX		0x09
 #define AUDIO_APBRIDGEA_TYPE_SET_RX_DATA_SIZE		0x0a
-#define AUDIO_APBRIDGEA_TYPE_GET_RX_DELAY		0x0b
+							/* 0x0b unused */
 #define AUDIO_APBRIDGEA_TYPE_PREPARE_RX			0x0c
 #define AUDIO_APBRIDGEA_TYPE_START_RX			0x0d
 #define AUDIO_APBRIDGEA_TYPE_STOP_RX			0x0e
···
 	__le16				size;
 } __packed;
 
-struct audio_apbridgea_get_tx_delay_request {
-	struct audio_apbridgea_hdr	hdr;
-} __packed;
-
-struct audio_apbridgea_get_tx_delay_response {
-	struct audio_apbridgea_hdr	hdr;
-	__le16				delay;
-} __packed;
-
 struct audio_apbridgea_prepare_tx_request {
 	struct audio_apbridgea_hdr	hdr;
 } __packed;
···
 struct audio_apbridgea_set_rx_data_size_request {
 	struct audio_apbridgea_hdr	hdr;
 	__le16				size;
-} __packed;
-
-struct audio_apbridgea_get_rx_delay_request {
-	struct audio_apbridgea_hdr	hdr;
-} __packed;
-
-struct audio_apbridgea_get_rx_delay_response {
-	struct audio_apbridgea_hdr	hdr;
-	__le16				delay;
 } __packed;
 
 struct audio_apbridgea_prepare_rx_request {

drivers/staging/greybus/audio_codec.h

···
 					       __u8 direction);
 extern int gb_audio_apbridgea_set_tx_data_size(struct gb_connection *connection,
 					       __u16 i2s_port, __u16 size);
-extern int gb_audio_apbridgea_get_tx_delay(struct gb_connection *connection,
-					   __u16 i2s_port, __u32 *delay);
 extern int gb_audio_apbridgea_prepare_tx(struct gb_connection *connection,
 					 __u16 i2s_port);
 extern int gb_audio_apbridgea_start_tx(struct gb_connection *connection,
···
 					  __u16 i2s_port);
 extern int gb_audio_apbridgea_set_rx_data_size(struct gb_connection *connection,
 					       __u16 i2s_port, __u16 size);
-extern int gb_audio_apbridgea_get_rx_delay(struct gb_connection *connection,
-					   __u16 i2s_port, __u32 *delay);
 extern int gb_audio_apbridgea_prepare_rx(struct gb_connection *connection,
 					 __u16 i2s_port);
 extern int gb_audio_apbridgea_start_rx(struct gb_connection *connection,