linux-kernel - [PATCH 08/12] of/platform: provide a separate routine for device initialization

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Message-Id: <20180511162028.20616-9-brgl@bgdev.pl>
Date:   Fri, 11 May 2018 18:20:24 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        David Lechner <david@...hnology.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Marc Zyngier <marc.zyngier@....com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        Peter Rosin <peda@...ntia.se>, Jiri Slaby <jslaby@...e.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Johan Hovold <johan@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arch@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 08/12] of/platform: provide a separate routine for device initialization

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

The early platform device framework will need to initialize the
platform device objects without them being allocated in
of_device_alloc(). Provide a routine that allows it.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 drivers/of/platform.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 24791e558ec5..0e554fe1f325 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -132,6 +132,19 @@ int of_device_init_resources(struct platform_device *pdev,
 	return 0;
 }
 
+static void of_device_init(struct platform_device *pdev, struct device_node *np,
+			   const char *bus_id, struct device *parent)
+{
+	pdev->dev.of_node = of_node_get(np);
+	pdev->dev.fwnode = &np->fwnode;
+	pdev->dev.parent = parent ? : &platform_bus;
+
+	if (bus_id)
+		dev_set_name(&pdev->dev, "%s", bus_id);
+	else
+		of_device_make_bus_id(&pdev->dev);
+}
+
 /**
  * of_device_alloc - Allocate and initialize an of_device
  * @np: device node to assign to device
@@ -155,14 +168,7 @@ struct platform_device *of_device_alloc(struct device_node *np,
 		return NULL;
 	}
 
-	dev->dev.of_node = of_node_get(np);
-	dev->dev.fwnode = &np->fwnode;
-	dev->dev.parent = parent ? : &platform_bus;
-
-	if (bus_id)
-		dev_set_name(&dev->dev, "%s", bus_id);
-	else
-		of_device_make_bus_id(&dev->dev);
+	of_device_init(dev, np, bus_id, parent);
 
 	return dev;
 }
-- 
2.17.0