Input: pcspkr - separate device and driver registration

The current pcspkr code combines the device and driver registration.
This patch splits these, putting the device registration in the arch
specific code.

PowerPC and MIPS only have the pcspkr present sometimes.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

7 files changed, 97 insertions, 26 deletions

diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index b4e5f8ff2b25..fa3f1a354b3f 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -28,6 +28,7 @@
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/ioport.h>
+#include <linux/platform_device.h>
 #include <linux/bootmem.h>
 #include <linux/pci.h>
 #include <linux/seq_file.h>
@@ -1484,3 +1485,20 @@ alpha_panic_event(struct notifier_block *this, unsigned long event, void *ptr)
 #endif
         return NOTIFY_DONE;
 }
+
+static __init int add_pcspkr(void)
+{
+	struct platform_device *pd;
+	int ret;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c
index ab62a9f4701e..a0b407585679 100644
--- a/arch/i386/kernel/setup.c
+++ b/arch/i386/kernel/setup.c
@@ -34,6 +34,7 @@
 #include <linux/initrd.h>
 #include <linux/bootmem.h>
 #include <linux/seq_file.h>
+#include <linux/platform_device.h>
 #include <linux/console.h>
 #include <linux/mca.h>
 #include <linux/root_dev.h>
@@ -1634,6 +1635,23 @@ void __init setup_arch(char **cmdline_p)
 #endif
 }
 
+static __init int add_pcspkr(void)
+{
+	struct platform_device *pd;
+	int ret;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
+
 #include "setup_arch_post.h"
 /*
  * Local Variables:
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 3a0f89d2c8dc..6d4333776d28 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -233,6 +233,7 @@ config MACH_JAZZ
 	select ARC32
 	select ARCH_MAY_HAVE_PC_FDC
 	select GENERIC_ISA_DMA
+	select I8253
 	select I8259
 	select ISA
 	select SYS_HAS_CPU_R4X00
@@ -530,6 +531,7 @@ config QEMU
 	select DMA_COHERENT
 	select GENERIC_ISA_DMA
 	select HAVE_STD_PC_SERIAL_PORT
+	select I8253
 	select I8259
 	select ISA
 	select SWAP_IO_SPACE
@@ -714,6 +716,7 @@ config SNI_RM200_PCI
 	select HAVE_STD_PC_SERIAL_PORT
 	select HW_HAS_EISA
 	select HW_HAS_PCI
+	select I8253
 	select I8259
 	select ISA
 	select SYS_HAS_CPU_R4X00
@@ -1711,6 +1714,9 @@ config MMU
 	bool
 	default y
 
+config I8253
+	bool
+
 source "drivers/pcmcia/Kconfig"
 
 source "drivers/pci/hotplug/Kconfig"
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index f36c4f20ee8a..309d54cceda3 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -59,6 +59,8 @@ obj-$(CONFIG_PROC_FS)		+= proc.o
 
 obj-$(CONFIG_64BIT)		+= cpu-bugs64.o
 
+obj-$(CONFIG_I8253)		+= i8253.o
+
 CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
 
 EXTRA_AFLAGS := $(CFLAGS)
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
new file mode 100644
index 000000000000..475df6904219
--- /dev/null
+++ b/arch/mips/kernel/i8253.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2006 IBM Corporation
+ *
+ * Implements device information for i8253 timer chip
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation
+ */
+
+#include <linux/platform_device.h>
+
+static __init int add_pcspkr(void)
+{
+	struct platform_device *pd;
+	int ret;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index be12041c0fc5..fc89d009d18d 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -18,6 +18,7 @@
 #include <linux/reboot.h>
 #include <linux/delay.h>
 #include <linux/initrd.h>
+#include <linux/platform_device.h>
 #include <linux/ide.h>
 #include <linux/seq_file.h>
 #include <linux/ioport.h>
@@ -469,3 +470,26 @@ static int __init early_xmon(char *p)
 }
 early_param("xmon", early_xmon);
 #endif
+
+static __init int add_pcspkr(void)
+{
+	struct device_node *np;
+	struct platform_device *pd;
+	int ret;
+
+	np = of_find_compatible_node(NULL, NULL, "pnpPNP,100");
+	of_node_put(np);
+	if (!np)
+		return -ENODEV;
+
+	pd = platform_device_alloc("pcspkr", -1);
+	if (!pd)
+		return -ENOMEM;
+
+	ret = platform_device_add(pd);
+	if (ret)
+		platform_device_put(pd);
+
+	return ret;
+}
+device_initcall(add_pcspkr);
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 1ef477f4469c..afd322185bbf 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -24,7 +24,6 @@ MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("PC Speaker beeper driver");
 MODULE_LICENSE("GPL");
 
-static struct platform_device *pcspkr_platform_device;
 static DEFINE_SPINLOCK(i8253_beep_lock);
 
 static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
@@ -135,35 +134,11 @@ static struct platform_driver pcspkr_platform_driver = {
 
 static int __init pcspkr_init(void)
 {
-	int err;
-
-	err = platform_driver_register(&pcspkr_platform_driver);
-	if (err)
-		return err;
-
-	pcspkr_platform_device = platform_device_alloc("pcspkr", -1);
-	if (!pcspkr_platform_device) {
-		err = -ENOMEM;
-		goto err_unregister_driver;
-	}
-
-	err = platform_device_add(pcspkr_platform_device);
-	if (err)
-		goto err_free_device;
-
-	return 0;
-
- err_free_device:
-	platform_device_put(pcspkr_platform_device);
- err_unregister_driver:
-	platform_driver_unregister(&pcspkr_platform_driver);
-
-	return err;
+	return platform_driver_register(&pcspkr_platform_driver);
 }
 
 static void __exit pcspkr_exit(void)
 {
-	platform_device_unregister(pcspkr_platform_device);
 	platform_driver_unregister(&pcspkr_platform_driver);
 }