diff options
Diffstat (limited to 'drivers/of/platform.c')
| -rw-r--r-- | drivers/of/platform.c | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 16e8daffac06..765390e3ed8d 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -11,6 +11,9 @@ * 2 of the License, or (at your option) any later version. * */ + +#define pr_fmt(fmt) "OF: " fmt + #include <linux/errno.h> #include <linux/module.h> #include <linux/amba/bus.h> @@ -31,7 +34,6 @@ const struct of_device_id of_default_bus_match_table[] = { #endif /* CONFIG_ARM_AMBA */ {} /* Empty terminated list */ }; -EXPORT_SYMBOL(of_default_bus_match_table); static int of_dev_node_match(struct device *dev, void *data) { @@ -234,11 +236,8 @@ static struct amba_device *of_amba_device_create(struct device_node *node, return NULL; dev = amba_device_alloc(NULL, 0, 0); - if (!dev) { - pr_err("%s(): amba_device_alloc() failed for %s\n", - __func__, node->full_name); + if (!dev) goto err_clear_flag; - } /* setup generic device info */ dev->dev.of_node = of_node_get(node); @@ -261,15 +260,15 @@ static struct amba_device *of_amba_device_create(struct device_node *node, ret = of_address_to_resource(node, 0, &dev->res); if (ret) { - pr_err("%s(): of_address_to_resource() failed (%d) for %s\n", - __func__, ret, node->full_name); + pr_err("amba: of_address_to_resource() failed (%d) for %s\n", + ret, node->full_name); goto err_free; } ret = amba_device_add(dev, &iomem_resource); if (ret) { - pr_err("%s(): amba_device_add() failed (%d) for %s\n", - __func__, ret, node->full_name); + pr_err("amba_device_add() failed (%d) for %s\n", + ret, node->full_name); goto err_free; } @@ -363,6 +362,12 @@ static int of_platform_bus_create(struct device_node *bus, return 0; } + if (of_node_check_flag(bus, OF_POPULATED_BUS)) { + pr_debug("%s() - skipping %s, already populated\n", + __func__, bus->full_name); + return 0; + } + auxdata = of_dev_lookup(lookup, bus); if (auxdata) { bus_id = auxdata->name; @@ -414,7 +419,7 @@ int of_platform_bus_probe(struct device_node *root, if (!root) return -EINVAL; - pr_debug("of_platform_bus_probe()\n"); + pr_debug("%s()\n", __func__); pr_debug(" starting at: %s\n", root->full_name); /* Do a self check of bus type, if there's a match, create children */ @@ -466,6 +471,9 @@ int of_platform_populate(struct device_node *root, if (!root) return -EINVAL; + pr_debug("%s()\n", __func__); + pr_debug(" starting at: %s\n", root->full_name); + for_each_child_of_node(root, child) { rc = of_platform_bus_create(child, matches, lookup, parent, true); if (rc) { @@ -489,6 +497,15 @@ int of_platform_default_populate(struct device_node *root, } EXPORT_SYMBOL_GPL(of_platform_default_populate); +static int __init of_platform_default_populate_init(void) +{ + if (of_have_populated_dt()) + of_platform_default_populate(NULL, NULL, NULL); + + return 0; +} +arch_initcall_sync(of_platform_default_populate_init); + static int of_platform_device_destroy(struct device *dev, void *data) { /* Do not touch devices not populated from the device tree */ |