From: Daniel Drake Date: Thu, 30 Sep 2010 20:55:36 +0000 (+0100) Subject: mfd: Allow for bypass of cell resource conflict check X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5f2545fa156f3d4d327038d7664608e146809a3c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 Signed-off-by: Samuel Ortiz --- diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 1823a57b7d8f..d1c8605d4ed4 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -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); diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 11d740b8831d..cb93d80aa642 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -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,