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staging: fsl-mc: add quirk handling for dpseci objects < 4.0 

dpseci objects < 4.0 are not coherent-- in spite of the fact
that the MC reports them to be coherent in certain versions.
Add a special case to set the no shareability flag for dpseci
objects < 4.0.

Signed-off-by: Horia Geanta <horia.geanta@nxp.com>
(Stuart: reworded commit message, updated comment in patch)
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: German Rivera <german.rivera@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Horia Geanta 2016-04-11 11:50:26 -05:00 committed by Greg Kroah-Hartman
parent 1716cb4c65
commit ae014c23d5
1 changed files with 9 additions and 0 deletions
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9
drivers/staging/fsl-mc/bus/dprc-driver.c
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@ -312,6 +312,15 @@ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
continue;
}
/*
* add a quirk for all versions of dpsec < 4.0...none
* are coherent regardless of what the MC reports.
*/
if ((strcmp(obj_desc->type, "dpseci") == 0) &&
(obj_desc->ver_major < 4))
obj_desc->flags |=
DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY;
irq_count += obj_desc->irq_count;
dev_dbg(&mc_bus_dev->dev,
"Discovered object: type %s, id %d\n",