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staging: fsl-mc: Added MSI support to the MC bus driver 

Initialize/Cleanup ITS-MSI support for the MC bus driver at driver
init/exit time. Associate an MSI domain with each DPAA2 child device.

Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
J. German Rivera 2016-01-06 16:03:29 -06:00 committed by Greg Kroah-Hartman
parent f52dee5ccd
commit 660a24bf60
1 changed files with 12 additions and 0 deletions
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12
drivers/staging/fsl-mc/bus/mc-bus.c
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@ -16,6 +16,8 @@
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/limits.h>
#include <linux/bitops.h>
#include <linux/msi.h>
#include "../include/dpmng.h"
#include "../include/mc-sys.h"
#include "dprc-cmd.h"
@ -472,6 +474,8 @@ int fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
mc_dev->icid = parent_mc_dev->icid;
mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
mc_dev->dev.dma_mask = &mc_dev->dma_mask;
dev_set_msi_domain(&mc_dev->dev,
dev_get_msi_domain(&parent_mc_dev->dev));
}
/*
@ -833,8 +837,15 @@ 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();
@ -856,6 +867,7 @@ static void __exit fsl_mc_bus_driver_exit(void)
if (WARN_ON(!mc_dev_cache))
return;
its_fsl_mc_msi_cleanup();
fsl_mc_allocator_driver_exit();
dprc_driver_exit();
platform_driver_unregister(&fsl_mc_bus_driver);