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mfd: Allow for bypass of cell resource conflict check 

The upcoming VIA VX855 MFD driver needs to communicate resources
to subdevices where the resources may be claimed by ACPI.

Add a flag to mfd_cell to request that resources are not policed.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Daniel Drake 2010-09-30 21:55:36 +01:00 committed by Samuel Ortiz
parent 2d95ae3bbf
commit 5f2545fa15
2 changed files with 8 additions and 3 deletions
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8
drivers/mfd/mfd-core.c
View File

@ -65,9 +65,11 @@ static int mfd_add_device(struct device *parent, int id,
res[r].end = cell->resources[r].end;
}
ret = acpi_check_resource_conflict(res);
if (ret)
goto fail_res;
if (!cell->ignore_resource_conflicts) {
ret = acpi_check_resource_conflict(res);
if (ret)
goto fail_res;
}
}
ret = platform_device_add_resources(pdev, res, cell->num_resources);

3
include/linux/mfd/core.h
View File

@ -44,6 +44,9 @@ struct mfd_cell {
*/
int num_resources;
const struct resource *resources;
/* don't check for resource conflicts */
bool ignore_resource_conflicts;
};
extern int mfd_add_devices(struct device *parent, int id,