ARM: davinci: da8xx: fix multiple watchdog device registration

Fix multiple watchdog device registration on da8xx devices
due to davinci_init_devices blindly registering watchdog
device.

Fix this by getting rid of the initcall and instead registering
watchdog for each soc.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

arch/arm/mach-davinci/davinci.h

@@ -79,6 +79,8 @@ int davinci_gpio_register(struct resource *res, int size, void *pdata);
 #define DM646X_ASYNC_EMIF_CONTROL_BASE	0x20008000
 #define DM646X_ASYNC_EMIF_CS2_SPACE_BASE 0x42000000
 
+int davinci_init_wdt(void);
+
 /* DM355 function declarations */
 void dm355_init(void);
 void dm355_init_spi0(unsigned chipselect_mask,

arch/arm/mach-davinci/devices.c

@@ -313,9 +313,9 @@ void davinci_restart(enum reboot_mode mode, const char *cmd)
 	davinci_watchdog_reset(&davinci_wdt_device);
 }
 
-static void davinci_init_wdt(void)
+int davinci_init_wdt(void)
 {
-	platform_device_register(&davinci_wdt_device);
+	return platform_device_register(&davinci_wdt_device);
 }
 
 static struct platform_device davinci_gpio_device = {
@@ -348,16 +348,3 @@ struct davinci_timer_instance davinci_timer_instance[2] = {
 	},
 };
 
-/*-------------------------------------------------------------------------*/
-
-static int __init davinci_init_devices(void)
-{
-	/* please keep these calls, and their implementations above,
-	 * in alphabetical order so they're easier to sort through.
-	 */
-	davinci_init_wdt();
-
-	return 0;
-}
-arch_initcall(davinci_init_devices);
-

arch/arm/mach-davinci/dm355.c

@@ -1076,12 +1076,18 @@ int __init dm355_init_video(struct vpfe_config *vpfe_cfg,
 
 static int __init dm355_init_devices(void)
 {
+	int ret = 0;
+
 	if (!cpu_is_davinci_dm355())
 		return 0;
 
 	davinci_cfg_reg(DM355_INT_EDMA_CC);
 	platform_device_register(&dm355_edma_device);
 
-	return 0;
+	ret = davinci_init_wdt();
+	if (ret)
+		pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
+
+	return ret;
 }
 postcore_initcall(dm355_init_devices);

arch/arm/mach-davinci/dm365.c

@@ -1436,6 +1436,8 @@ int __init dm365_init_video(struct vpfe_config *vpfe_cfg,
 
 static int __init dm365_init_devices(void)
 {
+	int ret = 0;
+
 	if (!cpu_is_davinci_dm365())
 		return 0;
 
@@ -1445,6 +1447,10 @@ static int __init dm365_init_devices(void)
 	platform_device_register(&dm365_mdio_device);
 	platform_device_register(&dm365_emac_device);
 
-	return 0;
+	ret = davinci_init_wdt();
+	if (ret)
+		pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
+
+	return ret;
 }
 postcore_initcall(dm365_init_devices);

arch/arm/mach-davinci/dm644x.c

@@ -964,6 +964,8 @@ int __init dm644x_init_video(struct vpfe_config *vpfe_cfg,
 
 static int __init dm644x_init_devices(void)
 {
+	int ret = 0;
+
 	if (!cpu_is_davinci_dm644x())
 		return 0;
 
@@ -972,6 +974,10 @@ static int __init dm644x_init_devices(void)
 	platform_device_register(&dm644x_mdio_device);
 	platform_device_register(&dm644x_emac_device);
 
-	return 0;
+	ret = davinci_init_wdt();
+	if (ret)
+		pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
+
+	return ret;
 }
 postcore_initcall(dm644x_init_devices);

arch/arm/mach-davinci/dm646x.c

@@ -955,12 +955,18 @@ void __init dm646x_init(void)
 
 static int __init dm646x_init_devices(void)
 {
+	int ret = 0;
+
 	if (!cpu_is_davinci_dm646x())
 		return 0;
 
 	platform_device_register(&dm646x_mdio_device);
 	platform_device_register(&dm646x_emac_device);
 
-	return 0;
+	ret = davinci_init_wdt();
+	if (ret)
+		pr_warn("%s: watchdog init failed: %d\n", __func__, ret);
+
+	return ret;
 }
 postcore_initcall(dm646x_init_devices);