mfd: core: propagate device properties to sub devices drivers

In the similar way like we do for the platform data we propagate the device
properties. For example, in case of Intel LPSS drivers we may provide a
specific property to tell the actual device driver an additional information
such as platform name.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2015-11-30 17:11:40 +02:00 committed by Rafael J. Wysocki
parent 55f89a8a45
commit 4d215cabc7
2 changed files with 12 additions and 0 deletions

View File

@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/property.h>
#include <linux/mfd/core.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
@ -192,6 +193,12 @@ static int mfd_add_device(struct device *parent, int id,
goto fail_alias;
}
if (cell->pset) {
ret = platform_device_add_properties(pdev, cell->pset);
if (ret)
goto fail_alias;
}
ret = mfd_platform_add_cell(pdev, cell, usage_count);
if (ret)
goto fail_alias;

View File

@ -17,6 +17,7 @@
#include <linux/platform_device.h>
struct irq_domain;
struct property_set;
/* Matches ACPI PNP id, either _HID or _CID, or ACPI _ADR */
struct mfd_cell_acpi_match {
@ -44,6 +45,10 @@ struct mfd_cell {
/* platform data passed to the sub devices drivers */
void *platform_data;
size_t pdata_size;
/* device properties passed to the sub devices drivers */
const struct property_set *pset;
/*
* Device Tree compatible string
* See: Documentation/devicetree/usage-model.txt Chapter 2.2 for details