staging: fsl-mc: Remove unnecessary dependency

The function that enables fsl-mc msi interrupts doesn't need
to be explicitly called from the fsl-mc bus driver initialization
routine.

Mark it to be independently called at system init; this is in line
with how things are handled by other GICv3 irqchip users.

Due to this change we now have an unused cleanup function, so
remove it.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-mc/bus/fsl-mc-allocator.c

@@ -648,8 +648,3 @@ int __init fsl_mc_allocator_driver_init(void)
 {
 	return fsl_mc_driver_register(&fsl_mc_allocator_driver);
 }
-
-void fsl_mc_allocator_driver_exit(void)
-{
-	fsl_mc_driver_unregister(&fsl_mc_allocator_driver);
-}

drivers/staging/fsl-mc/bus/fsl-mc-bus.c

@@ -933,15 +933,8 @@ static int __init fsl_mc_bus_driver_init(void)
 	if (error < 0)
 		goto error_cleanup_dprc_driver;
 
-	error = its_fsl_mc_msi_init();
-	if (error < 0)
-		goto error_cleanup_mc_allocator;
-
 	return 0;
 
-error_cleanup_mc_allocator:
-	fsl_mc_allocator_driver_exit();
-
 error_cleanup_dprc_driver:
 	dprc_driver_exit();
 

drivers/staging/fsl-mc/bus/fsl-mc-private.h

@@ -440,8 +440,6 @@ void dprc_driver_exit(void);
 
 int __init fsl_mc_allocator_driver_init(void);
 
-void fsl_mc_allocator_driver_exit(void);
-
 void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
 
 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
@@ -458,8 +456,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev,
 
 void fsl_mc_msi_domain_free_irqs(struct device *dev);
 
-int __init its_fsl_mc_msi_init(void);
-
 int fsl_mc_find_msi_domain(struct device *mc_platform_dev,
 			   struct irq_domain **mc_msi_domain);
 

drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c

@@ -98,3 +98,5 @@ int __init its_fsl_mc_msi_init(void)
 
 	return 0;
 }
+
+early_initcall(its_fsl_mc_msi_init);