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[PATCH v2 12/16] mfd: core: propagate device properties to sub devices drivers

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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>
---
 drivers/mfd/mfd-core.c   | 7 +++++++
 include/linux/mfd/core.h | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 60b60dc..88bd1b1 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -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;
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index 27dac3f..bc6f7e0 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -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
-- 
2.6.2

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[PATCH v2 00/16] intel-lpss: support non-ACPI platforms Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 11/16] driver core: Do not overwrite secondary fwnode with NULL if it is set Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 03/16] device property: refactor built-in properties support Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 12/16] mfd: core: propagate device properties to sub devices drivers Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 01/16] device property: always check for fwnode type Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 16/16] i2c: designware: Convert to use unified device property API Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
    Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Wolfram Sang <wsa@the-dreams.de> - 2015-11-30 21:00 +0100
      Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Mika Westerberg <mika.westerberg@linux.intel.com> - 2015-12-01 10:10 +0100
      Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-12-01 11:40 +0100
        Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device property API "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-12-02 02:00 +0100
          Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-12-02 10:30 +0100
            Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Mika Westerberg <mika.westerberg@linux.intel.com> - 2015-12-02 10:40 +0100
              Re: [PATCH v2 16/16] i2c: designware: Convert to use unified device  property API Wolfram Sang <wsa@the-dreams.de> - 2015-12-02 11:00 +0100
  [PATCH v2 14/16] mfd: intel-lpss: Pass SDA hold time to I2C host controller driver Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 15/16] mfd: intel-lpss: Pass HSUART configuration via properties Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  [PATCH v2 13/16] mfd: intel-lpss: Add support for passing device properties Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2015-11-30 16:20 +0100
  Re: [PATCH v2 00/16] intel-lpss: support non-ACPI platforms "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-12-07 02:20 +0100

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