Commit 4d215cab authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Rafael J. Wysocki
Browse files

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: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 55f89a8a

drivers/mfd/mfd-core.c

+7 −0
Original line number Diff line number Diff line
@@ -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;

include/linux/mfd/core.h

+5 −0
Original line number Diff line number Diff line
@@ -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