staging: vchi: Use vchiq's enum vchiq_reason

enum vchi_callback_reason maps 1:1 to enum vchiq_reason, in an effort to
simplify things, let's use the later, and get rid of the extra
indirection.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629150945.10720-21-nsaenzjulienne@suse.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c

@@ -89,8 +89,7 @@ static int bcm2835_audio_send_simple(struct bcm2835_audio_instance *instance,
 	return bcm2835_audio_send_msg(instance, &m, wait);
 }
 
-static void audio_vchi_callback(void *param,
-				const enum vchi_callback_reason reason,
+static void audio_vchi_callback(void *param, const enum vchiq_reason reason,
 				void *msg_handle)
 {
 	struct bcm2835_audio_instance *instance = param;
@@ -99,7 +98,7 @@ static void audio_vchi_callback(void *param,
 	unsigned size;
 	int status;
 
-	if (reason != VCHI_CALLBACK_MSG_AVAILABLE)
+	if (reason != VCHIQ_MESSAGE_AVAILABLE)
 		return;
 
 	status = vchi_msg_hold(instance->service, (void **)&m, &size, &handle);

drivers/staging/vc04_services/interface/vchi/vchi_common.h

@@ -4,27 +4,9 @@
 #ifndef VCHI_COMMON_H_
 #define VCHI_COMMON_H_
 
-//callback reasons when an event occurs on a service
-enum vchi_callback_reason {
-	/*
-	 * This indicates that there is data available handle is the msg id that
-	 * was transmitted with the data
-	 * When a message is received and there was no FULL message available
-	 * previously, send callback
-	 * Tasks get kicked by the callback, reset their event and try and read
-	 * from the fifo until it fails
-	 */
-	VCHI_CALLBACK_SERVICE_CLOSED,
-	VCHI_CALLBACK_MSG_AVAILABLE,
-	VCHI_CALLBACK_BULK_SENT,
-	VCHI_CALLBACK_BULK_RECEIVED,
-	VCHI_CALLBACK_BULK_TRANSMIT_ABORTED,
-	VCHI_CALLBACK_BULK_RECEIVE_ABORTED,
-};
-
 //Callback used by all services / bulk transfers
 typedef void (*vchi_callback)(void *callback_param, //my service local param
-			      enum vchi_callback_reason reason,
+			      enum vchiq_reason reason,
 			      void *handle); //for transmitting msg's only
 
 #endif // VCHI_COMMON_H_

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c

@@ -274,46 +274,10 @@ static enum vchiq_status shim_callback(enum vchiq_reason reason,
 	if (!service->callback)
 		goto release;
 
-	switch (reason) {
-	case VCHIQ_MESSAGE_AVAILABLE:
+	if (reason == VCHIQ_MESSAGE_AVAILABLE)
 		vchiu_queue_push(&service->queue, header);
 
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_MSG_AVAILABLE, NULL);
-
-		break;
-
-	case VCHIQ_BULK_TRANSMIT_DONE:
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_BULK_SENT, bulk_user);
-		break;
-
-	case VCHIQ_BULK_RECEIVE_DONE:
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_BULK_RECEIVED, bulk_user);
-		break;
-
-	case VCHIQ_SERVICE_CLOSED:
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_SERVICE_CLOSED, NULL);
-		break;
-
-	case VCHIQ_BULK_TRANSMIT_ABORTED:
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_BULK_TRANSMIT_ABORTED,
-				  bulk_user);
-		break;
-
-	case VCHIQ_BULK_RECEIVE_ABORTED:
-		service->callback(service->callback_param,
-				  VCHI_CALLBACK_BULK_RECEIVE_ABORTED,
-				  bulk_user);
-		break;
-
-	default:
-		WARN(1, "not supported\n");
-		break;
-	}
+	service->callback(service->callback_param, reason, bulk_user);
 
 release:
 	return VCHIQ_SUCCESS;

drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c

@@ -549,8 +549,7 @@ static void bulk_abort_cb(struct vchiq_mmal_instance *instance,
 }
 
 /* incoming event service callback */
-static void service_callback(void *param,
-			     const enum vchi_callback_reason reason,
+static void service_callback(void *param, const enum vchiq_reason reason,
 			     void *bulk_ctx)
 {
 	struct vchiq_mmal_instance *instance = param;
@@ -566,7 +565,7 @@ static void service_callback(void *param,
 	}
 
 	switch (reason) {
-	case VCHI_CALLBACK_MSG_AVAILABLE:
+	case VCHIQ_MESSAGE_AVAILABLE:
 		status = vchi_msg_hold(instance->service, (void **)&msg,
 				       &msg_len, &msg_handle);
 		if (status) {
@@ -631,15 +630,15 @@ static void service_callback(void *param,
 
 		break;
 
-	case VCHI_CALLBACK_BULK_RECEIVED:
+	case VCHIQ_BULK_RECEIVE_DONE:
 		bulk_receive_cb(instance, bulk_ctx);
 		break;
 
-	case VCHI_CALLBACK_BULK_RECEIVE_ABORTED:
+	case VCHIQ_BULK_RECEIVE_ABORTED:
 		bulk_abort_cb(instance, bulk_ctx);
 		break;
 
-	case VCHI_CALLBACK_SERVICE_CLOSED:
+	case VCHIQ_SERVICE_CLOSED:
 		/* TODO: consider if this requires action if received when
 		 * driver is not explicitly closing the service
 		 */