staging: vc04_services: Get rid of vchiq_platform_videocore_wanted()

The function always returns true, which makes a whole bunch of code
useless.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200131103836.14312-10-nsaenzjulienne@suse.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c

@@ -257,11 +257,6 @@ int vchiq_dump_platform_state(void *dump_context)
 	return vchiq_dump(dump_context, buf, len + 1);
 }
 
-int
-vchiq_platform_videocore_wanted(struct vchiq_state *state)
-{
-	return 1; // autosuspend not supported - videocore always wanted
-}
 void
 vchiq_platform_handle_timeout(struct vchiq_state *state)
 {

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

@@ -2253,22 +2253,6 @@ vchiq_fops = {
  * Autosuspend related functionality
  */
 
-int
-vchiq_videocore_wanted(struct vchiq_state *state)
-{
-	struct vchiq_arm_state *arm_state = vchiq_platform_get_arm_state(state);
-
-	if (!arm_state)
-		/* autosuspend not supported - always return wanted */
-		return 1;
-	else if (!arm_state->videocore_use_count)
-		/* usage count zero - check for override unless we're forcing */
-		return vchiq_platform_videocore_wanted(state);
-	else
-		/* non-zero usage count - videocore still required */
-		return 1;
-}
-
 static enum vchiq_status
 vchiq_keepalive_vchiq_callback(enum vchiq_reason reason,
 	struct vchiq_header *header,
@@ -2513,8 +2497,7 @@ need_resume(struct vchiq_state *state)
 	struct vchiq_arm_state *arm_state = vchiq_platform_get_arm_state(state);
 
 	return (arm_state->vc_suspend_state > VC_SUSPEND_IDLE) &&
-			(arm_state->vc_resume_state < VC_RESUME_REQUESTED) &&
-			vchiq_videocore_wanted(state);
+			(arm_state->vc_resume_state < VC_RESUME_REQUESTED);
 }
 
 /* Initiate suspend via slot handler. Should be called with the write lock
@@ -2736,17 +2719,10 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service)
 	--arm_state->videocore_use_count;
 	--(*entity_uc);
 
-	if (!vchiq_videocore_wanted(state)) {
-		vchiq_log_info(vchiq_susp_log_level,
-			"%s %s count %d, state count %d - suspending",
-			__func__, entity, *entity_uc,
-			arm_state->videocore_use_count);
-		vchiq_arm_vcsuspend(state);
-	} else
-		vchiq_log_trace(vchiq_susp_log_level,
-			"%s %s count %d, state count %d",
-			__func__, entity, *entity_uc,
-			arm_state->videocore_use_count);
+	vchiq_log_trace(vchiq_susp_log_level,
+		"%s %s count %d, state count %d",
+		__func__, entity, *entity_uc,
+		arm_state->videocore_use_count);
 
 unlock:
 	write_unlock_bh(&arm_state->susp_res_lock);

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h

@@ -112,9 +112,6 @@ vchiq_release_service(unsigned int handle);
 extern enum vchiq_status
 vchiq_check_service(struct vchiq_service *service);
 
-extern int
-vchiq_platform_videocore_wanted(struct vchiq_state *state);
-
 extern void
 vchiq_dump_platform_use_state(struct vchiq_state *state);
 
@@ -124,8 +121,6 @@ vchiq_dump_service_use_state(struct vchiq_state *state);
 extern struct vchiq_arm_state*
 vchiq_platform_get_arm_state(struct vchiq_state *state);
 
-extern int
-vchiq_videocore_wanted(struct vchiq_state *state);
 
 extern enum vchiq_status
 vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service,