mfd: Add placeholders for WM8350 client devices

In order to avoid merge problems further down the line add placeholders
for several of the WM8350 client devices and register them, otherwise
the patches adding the client devices will all try to update the same
code.

Also remove redundant checks for null regulator platform devices while
we're at it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

drivers/mfd/wm8350-core.c

@@ -1234,6 +1234,15 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
 
 	wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0x0);
 
+	wm8350_client_dev_register(wm8350, "wm8350-codec",
+				   &(wm8350->codec.pdev));
+	wm8350_client_dev_register(wm8350, "wm8350-gpio",
+				   &(wm8350->gpio.pdev));
+	wm8350_client_dev_register(wm8350, "wm8350-power",
+				   &(wm8350->power.pdev));
+	wm8350_client_dev_register(wm8350, "wm8350-rtc", &(wm8350->rtc.pdev));
+	wm8350_client_dev_register(wm8350, "wm8350-wdt", &(wm8350->wdt.pdev));
+
 	return 0;
 
 err:
@@ -1247,8 +1256,13 @@ void wm8350_device_exit(struct wm8350 *wm8350)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(wm8350->pmic.pdev); i++)
-		if (wm8350->pmic.pdev[i] != NULL)
-			platform_device_unregister(wm8350->pmic.pdev[i]);
+		platform_device_unregister(wm8350->pmic.pdev[i]);
+
+	platform_device_unregister(wm8350->wdt.pdev);
+	platform_device_unregister(wm8350->rtc.pdev);
+	platform_device_unregister(wm8350->power.pdev);
+	platform_device_unregister(wm8350->gpio.pdev);
+	platform_device_unregister(wm8350->codec.pdev);
 
 	free_irq(wm8350->chip_irq, wm8350);
 	flush_work(&wm8350->irq_work);

include/linux/mfd/wm8350/audio.h

@@ -13,6 +13,8 @@
 #ifndef __LINUX_MFD_WM8350_AUDIO_H_
 #define __LINUX_MFD_WM8350_AUDIO_H_
 
+#include <linux/platform_device.h>
+
 #define WM8350_CLOCK_CONTROL_1                  0x28
 #define WM8350_CLOCK_CONTROL_2                  0x29
 #define WM8350_FLL_CONTROL_1                    0x2A
@@ -589,4 +591,8 @@
 #define WM8350_IRQ_CODEC_MICSCD			41
 #define WM8350_IRQ_CODEC_MICD			42
 
+struct wm8350_codec {
+	struct platform_device *pdev;
+};
+
 #endif

include/linux/mfd/wm8350/core.h

@@ -17,7 +17,12 @@
 #include <linux/mutex.h>
 #include <linux/workqueue.h>
 
+#include <linux/mfd/wm8350/audio.h>
+#include <linux/mfd/wm8350/gpio.h>
 #include <linux/mfd/wm8350/pmic.h>
+#include <linux/mfd/wm8350/rtc.h>
+#include <linux/mfd/wm8350/supply.h>
+#include <linux/mfd/wm8350/wdt.h>
 
 /*
  * Register values.
@@ -574,7 +579,12 @@ struct wm8350 {
 	int chip_irq;
 
 	/* Client devices */
+	struct wm8350_codec codec;
+	struct wm8350_gpio gpio;
 	struct wm8350_pmic pmic;
+	struct wm8350_power power;
+	struct wm8350_rtc rtc;
+	struct wm8350_wdt wdt;
 };
 
 /**

include/linux/mfd/wm8350/gpio.h

@@ -13,6 +13,8 @@
 #ifndef __LINUX_MFD_WM8350_GPIO_H_
 #define __LINUX_MFD_WM8350_GPIO_H_
 
+#include <linux/platform_device.h>
+
 /*
  * GPIO Registers.
  */
@@ -328,6 +330,10 @@ struct wm8350;
 int wm8350_gpio_config(struct wm8350 *wm8350, int gpio, int dir, int func,
 		       int pol, int pull, int invert, int debounce);
 
+struct wm8350_gpio {
+	struct platform_device *pdev;
+};
+
 /*
  * GPIO Interrupts
  */

include/linux/mfd/wm8350/rtc.h

@@ -12,6 +12,8 @@
 #ifndef __LINUX_MFD_WM8350_RTC_H
 #define __LINUX_MFD_WM8350_RTC_H
 
+#include <linux/platform_device.h>
+
 /*
  * Register values.
  */
@@ -257,4 +259,8 @@
 #define WM8350_IRQ_RTC_SEC			8
 #define WM8350_IRQ_RTC_ALM			9
 
+struct wm8350_rtc {
+	struct platform_device *pdev;
+};
+
 #endif

include/linux/mfd/wm8350/supply.h

@@ -13,6 +13,8 @@
 #ifndef __LINUX_MFD_WM8350_SUPPLY_H_
 #define __LINUX_MFD_WM8350_SUPPLY_H_
 
+#include <linux/platform_device.h>
+
 /*
  * Charger registers
  */
@@ -102,4 +104,8 @@
 #define WM8350_IRQ_EXT_WALL_FB			37
 #define WM8350_IRQ_EXT_BAT_FB			38
 
+struct wm8350_power {
+	struct platform_device *pdev;
+};
+
 #endif

include/linux/mfd/wm8350/wdt.h

@@ -1,7 +1,7 @@
 /*
  * wdt.h  --  Watchdog Driver for Wolfson WM8350 PMIC
  *
- * Copyright 2007 Wolfson Microelectronics PLC
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC
  *
  *  This program is free software; you can redistribute  it and/or modify it
  *  under  the terms of  the GNU General  Public License as published by the
@@ -12,6 +12,8 @@
 #ifndef __LINUX_MFD_WM8350_WDT_H_
 #define __LINUX_MFD_WM8350_WDT_H_
 
+#include <linux/platform_device.h>
+
 #define WM8350_WDOG_HIB_MODE                    0x0080
 #define WM8350_WDOG_DEBUG                       0x0040
 #define WM8350_WDOG_MODE_MASK                   0x0030
@@ -19,4 +21,8 @@
 
 #define WM8350_IRQ_SYS_WDOG_TO			24
 
+struct wm8350_wdt {
+	struct platform_device *pdev;
+};
+
 #endif