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of: remove of_default_bus_ids

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This list used was by only two platforms with all other platforms defining an
own list of valid bus id's to pass to of_platform_bus_probe.  This patch:

i)   copies the default list to the two platforms that depended on it (powerpc)
ii)  remove the usage of of_default_bus_ids in of_platform_bus_probe
iii) removes the definition of the list from all architectures that defined it

Passing a NULL 'matches' parameter to of_platform_bus_probe is still valid; the
function returns no error in that case as the NULL value is equivalent to an
empty list.

Signed-off-by: Jonas Bonn <jonas@southpole.se>
[grant.likely@secretlab.ca: added __initdata annotations, warn on and return error on missing match table, and fix whitespace errors]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Jonas Bonn 2010-07-23 20:19:24 +02:00 committed by Grant Likely
parent c608558407
commit c0dd394ca5
7 changed files with 28 additions and 81 deletions
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2
arch/microblaze/kernel/Makefile
View File

@ -16,7 +16,7 @@ extra-y := head.o vmlinux.lds
obj-y += dma.o exceptions.o \
hw_exception_handler.o init_task.o intc.o irq.o \
of_platform.o process.o prom.o prom_parse.o ptrace.o \
process.o prom.o prom_parse.o ptrace.o \
setup.o signal.o sys_microblaze.o timer.o traps.o reset.o
obj-y += cpu/

49
arch/microblaze/kernel/of_platform.c
View File

@ -1,49 +0,0 @@
/*
* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
* and Arnd Bergmann, IBM Corp.
*
* 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 Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#undef DEBUG
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/pci.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/errno.h>
#include <linux/topology.h>
#include <asm/atomic.h>
/*
* The list of OF IDs below is used for matching bus types in the
* system whose devices are to be exposed as of_platform_devices.
*
* This is the default list valid for most platforms. This file provides
* functions who can take an explicit list if necessary though
*
* The search is always performed recursively looking for children of
* the provided device_node and recursively if such a children matches
* a bus type in the list
*/
const struct of_device_id of_default_bus_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "plb5", },
{ .type = "plb4", },
{ .type = "opb", },
{ .type = "simple", },
{},
};

24
arch/powerpc/kernel/of_platform.c
View File

@ -28,30 +28,6 @@
#include <asm/ppc-pci.h>
#include <asm/atomic.h>
/*
* The list of OF IDs below is used for matching bus types in the
* system whose devices are to be exposed as of_platform_devices.
*
* This is the default list valid for most platforms. This file provides
* functions who can take an explicit list if necessary though
*
* The search is always performed recursively looking for children of
* the provided device_node and recursively if such a children matches
* a bus type in the list
*/
const struct of_device_id of_default_bus_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "spider", },
{ .type = "axon", },
{ .type = "plb5", },
{ .type = "plb4", },
{ .type = "opb", },
{ .type = "ebc", },
{},
};
#ifdef CONFIG_PPC_OF_PLATFORM_PCI
/* The probing of PCI controllers from of_platform is currently

14
arch/powerpc/platforms/cell/qpace_setup.c
View File

@ -61,12 +61,24 @@ static void qpace_progress(char *s, unsigned short hex)
printk("*** %04x : %s\n", hex, s ? s : "");
}
static const struct of_device_id qpace_bus_ids[] __initdata = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "spider", },
{ .type = "axon", },
{ .type = "plb5", },
{ .type = "plb4", },
{ .type = "opb", },
{ .type = "ebc", },
{},
};
static int __init qpace_publish_devices(void)
{
int node;
/* Publish OF platform devices for southbridge IOs */
of_platform_bus_probe(NULL, NULL, NULL);
of_platform_bus_probe(NULL, qpace_bus_ids, NULL);
/* There is no device for the MIC memory controller, thus we create
* a platform device for it to attach the EDAC driver to.

14
arch/powerpc/platforms/cell/setup.c
View File

@ -141,6 +141,18 @@ static int __devinit cell_setup_phb(struct pci_controller *phb)
return 0;
}
static const struct of_device_id cell_bus_ids[] __initdata = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "spider", },
{ .type = "axon", },
{ .type = "plb5", },
{ .type = "plb4", },
{ .type = "opb", },
{ .type = "ebc", },
{},
};
static int __init cell_publish_devices(void)
{
struct device_node *root = of_find_node_by_path("/");
@ -148,7 +160,7 @@ static int __init cell_publish_devices(void)
int node;
/* Publish OF platform devices for southbridge IOs */
of_platform_bus_probe(NULL, NULL, NULL);
of_platform_bus_probe(NULL, cell_bus_ids, NULL);
/* On spider based blades, we need to manually create the OF
* platform devices for the PCI host bridges

4
drivers/of/platform.c
View File

@ -701,9 +701,7 @@ int of_platform_bus_probe(struct device_node *root,
struct platform_device *dev;
int rc = 0;
if (matches == NULL)
matches = of_default_bus_ids;
if (matches == OF_NO_DEEP_PROBE)
if (WARN_ON(!matches || matches == OF_NO_DEEP_PROBE))
return -EINVAL;
if (root == NULL)
root = of_find_node_by_path("/");

2
include/linux/of_platform.h
View File

@ -19,8 +19,6 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
extern const struct of_device_id of_default_bus_ids[];
/*
* An of_platform_driver driver is attached to a basic of_device on
* the "platform bus" (platform_bus_type).