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>

6 files changed, 96 insertions, 0 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);