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    Subject[PATCH v3 11/11] staging: fsl-mc: Added MSI support to the MC bus driver
    Date
    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>
    ---
    CHANGE HISTORY

    Changes in v3: none

    Changes in v2: none

    drivers/staging/fsl-mc/bus/mc-bus.c | 12 ++++++++++++
    1 file changed, 12 insertions(+)

    diff --git a/drivers/staging/fsl-mc/bus/mc-bus.c b/drivers/staging/fsl-mc/bus/mc-bus.c
    index d34f1af..9317561 100644
    --- a/drivers/staging/fsl-mc/bus/mc-bus.c
    +++ b/drivers/staging/fsl-mc/bus/mc-bus.c
    @@ -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);
    --
    2.3.3


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