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-rw-r--r--drivers/base/base.h1
-rw-r--r--drivers/base/core.c235
-rw-r--r--drivers/base/dd.c33
-rw-r--r--drivers/base/firmware_loader/fallback.c15
-rw-r--r--drivers/base/firmware_loader/fallback.h8
-rw-r--r--drivers/base/firmware_loader/fallback_platform.c2
-rw-r--r--drivers/base/firmware_loader/fallback_table.c2
-rw-r--r--drivers/base/firmware_loader/firmware.h3
-rw-r--r--drivers/base/firmware_loader/main.c14
-rw-r--r--drivers/base/platform.c6
-rw-r--r--drivers/base/property.c13
-rw-r--r--drivers/base/soc.c2
-rw-r--r--drivers/base/swnode.c27
-rw-r--r--drivers/of/platform.c2
14 files changed, 258 insertions, 105 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 40fb069a8a7e..95c22c0f9036 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -153,6 +153,7 @@ extern char *make_class_name(const char *name, struct kobject *kobj);
extern int devres_release_all(struct device *dev);
extern void device_block_probing(void);
extern void device_unblock_probing(void);
+extern void driver_deferred_probe_force_trigger(void);
/* /sys/devices directory */
extern struct kset *devices_kset;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index de808c5a187b..67d39a90b45c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -49,6 +49,9 @@ static LIST_HEAD(wait_for_suppliers);
static DEFINE_MUTEX(wfs_lock);
static LIST_HEAD(deferred_sync);
static unsigned int defer_sync_state_count = 1;
+static unsigned int defer_fw_devlink_count;
+static DEFINE_MUTEX(defer_fw_devlink_lock);
+static bool fw_devlink_is_permissive(void);
#ifdef CONFIG_SRCU
static DEFINE_MUTEX(device_links_lock);
@@ -529,7 +532,7 @@ static void device_link_add_missing_supplier_links(void)
int ret = fwnode_call_int_op(dev->fwnode, add_links, dev);
if (!ret)
list_del_init(&dev->links.needs_suppliers);
- else if (ret != -ENODEV)
+ else if (ret != -ENODEV || fw_devlink_is_permissive())
dev->links.need_for_probe = false;
}
mutex_unlock(&wfs_lock);
@@ -643,9 +646,17 @@ static void device_links_missing_supplier(struct device *dev)
{
struct device_link *link;
- list_for_each_entry(link, &dev->links.suppliers, c_node)
- if (link->status == DL_STATE_CONSUMER_PROBE)
+ list_for_each_entry(link, &dev->links.suppliers, c_node) {
+ if (link->status != DL_STATE_CONSUMER_PROBE)
+ continue;
+
+ if (link->supplier->links.status == DL_DEV_DRIVER_BOUND) {
WRITE_ONCE(link->status, DL_STATE_AVAILABLE);
+ } else {
+ WARN_ON(!(link->flags & DL_FLAG_SYNC_STATE_ONLY));
+ WRITE_ONCE(link->status, DL_STATE_DORMANT);
+ }
+ }
}
/**
@@ -684,11 +695,11 @@ int device_links_check_suppliers(struct device *dev)
device_links_write_lock();
list_for_each_entry(link, &dev->links.suppliers, c_node) {
- if (!(link->flags & DL_FLAG_MANAGED) ||
- link->flags & DL_FLAG_SYNC_STATE_ONLY)
+ if (!(link->flags & DL_FLAG_MANAGED))
continue;
- if (link->status != DL_STATE_AVAILABLE) {
+ if (link->status != DL_STATE_AVAILABLE &&
+ !(link->flags & DL_FLAG_SYNC_STATE_ONLY)) {
device_links_missing_supplier(dev);
ret = -EPROBE_DEFER;
break;
@@ -949,11 +960,21 @@ static void __device_links_no_driver(struct device *dev)
if (!(link->flags & DL_FLAG_MANAGED))
continue;
- if (link->flags & DL_FLAG_AUTOREMOVE_CONSUMER)
+ if (link->flags & DL_FLAG_AUTOREMOVE_CONSUMER) {
device_link_drop_managed(link);
- else if (link->status == DL_STATE_CONSUMER_PROBE ||
- link->status == DL_STATE_ACTIVE)
+ continue;
+ }
+
+ if (link->status != DL_STATE_CONSUMER_PROBE &&
+ link->status != DL_STATE_ACTIVE)
+ continue;
+
+ if (link->supplier->links.status == DL_DEV_DRIVER_BOUND) {
WRITE_ONCE(link->status, DL_STATE_AVAILABLE);
+ } else {
+ WARN_ON(!(link->flags & DL_FLAG_SYNC_STATE_ONLY));
+ WRITE_ONCE(link->status, DL_STATE_DORMANT);
+ }
}
dev->links.status = DL_DEV_NO_DRIVER;
@@ -1162,6 +1183,150 @@ static void device_links_purge(struct device *dev)
device_links_write_unlock();
}
+static u32 fw_devlink_flags = DL_FLAG_SYNC_STATE_ONLY;
+static int __init fw_devlink_setup(char *arg)
+{
+ if (!arg)
+ return -EINVAL;
+
+ if (strcmp(arg, "off") == 0) {
+ fw_devlink_flags = 0;
+ } else if (strcmp(arg, "permissive") == 0) {
+ fw_devlink_flags = DL_FLAG_SYNC_STATE_ONLY;
+ } else if (strcmp(arg, "on") == 0) {
+ fw_devlink_flags = DL_FLAG_AUTOPROBE_CONSUMER;
+ } else if (strcmp(arg, "rpm") == 0) {
+ fw_devlink_flags = DL_FLAG_AUTOPROBE_CONSUMER |
+ DL_FLAG_PM_RUNTIME;
+ }
+ return 0;
+}
+early_param("fw_devlink", fw_devlink_setup);
+
+u32 fw_devlink_get_flags(void)
+{
+ return fw_devlink_flags;
+}
+
+static bool fw_devlink_is_permissive(void)
+{
+ return fw_devlink_flags == DL_FLAG_SYNC_STATE_ONLY;
+}
+
+static void fw_devlink_link_device(struct device *dev)
+{
+ int fw_ret;
+
+ if (!fw_devlink_flags)
+ return;
+
+ mutex_lock(&defer_fw_devlink_lock);
+ if (!defer_fw_devlink_count)
+ device_link_add_missing_supplier_links();
+
+ /*
+ * The device's fwnode not having add_links() doesn't affect if other
+ * consumers can find this device as a supplier. So, this check is
+ * intentionally placed after device_link_add_missing_supplier_links().
+ */
+ if (!fwnode_has_op(dev->fwnode, add_links))
+ goto out;
+
+ /*
+ * If fw_devlink is being deferred, assume all devices have mandatory
+ * suppliers they need to link to later. Then, when the fw_devlink is
+ * resumed, all these devices will get a chance to try and link to any
+ * suppliers they have.
+ */
+ if (!defer_fw_devlink_count) {
+ fw_ret = fwnode_call_int_op(dev->fwnode, add_links, dev);
+ if (fw_ret == -ENODEV && fw_devlink_is_permissive())
+ fw_ret = -EAGAIN;
+ } else {
+ fw_ret = -ENODEV;
+ }
+
+ if (fw_ret == -ENODEV)
+ device_link_wait_for_mandatory_supplier(dev);
+ else if (fw_ret)
+ device_link_wait_for_optional_supplier(dev);
+
+out:
+ mutex_unlock(&defer_fw_devlink_lock);
+}
+
+/**
+ * fw_devlink_pause - Pause parsing of fwnode to create device links
+ *
+ * Calling this function defers any fwnode parsing to create device links until
+ * fw_devlink_resume() is called. Both these functions are ref counted and the
+ * caller needs to match the calls.
+ *
+ * While fw_devlink is paused:
+ * - Any device that is added won't have its fwnode parsed to create device
+ * links.
+ * - The probe of the device will also be deferred during this period.
+ * - Any devices that were already added, but waiting for suppliers won't be
+ * able to link to newly added devices.
+ *
+ * Once fw_devlink_resume():
+ * - All the fwnodes that was not parsed will be parsed.
+ * - All the devices that were deferred probing will be reattempted if they
+ * aren't waiting for any more suppliers.
+ *
+ * This pair of functions, is mainly meant to optimize the parsing of fwnodes
+ * when a lot of devices that need to link to each other are added in a short
+ * interval of time. For example, adding all the top level devices in a system.
+ *
+ * For example, if N devices are added and:
+ * - All the consumers are added before their suppliers
+ * - All the suppliers of the N devices are part of the N devices
+ *
+ * Then:
+ *
+ * - With the use of fw_devlink_pause() and fw_devlink_resume(), each device
+ * will only need one parsing of its fwnode because it is guaranteed to find
+ * all the supplier devices already registered and ready to link to. It won't
+ * have to do another pass later to find one or more suppliers it couldn't
+ * find in the first parse of the fwnode. So, we'll only need O(N) fwnode
+ * parses.
+ *
+ * - Without the use of fw_devlink_pause() and fw_devlink_resume(), we would
+ * end up doing O(N^2) parses of fwnodes because every device that's added is
+ * guaranteed to trigger a parse of the fwnode of every device added before
+ * it. This O(N^2) parse is made worse by the fact that when a fwnode of a
+ * device is parsed, all it descendant devices might need to have their
+ * fwnodes parsed too (even if the devices themselves aren't added).
+ */
+void fw_devlink_pause(void)
+{
+ mutex_lock(&defer_fw_devlink_lock);
+ defer_fw_devlink_count++;
+ mutex_unlock(&defer_fw_devlink_lock);
+}
+
+/** fw_devlink_resume - Resume parsing of fwnode to create device links
+ *
+ * This function is used in conjunction with fw_devlink_pause() and is ref
+ * counted. See documentation for fw_devlink_pause() for more details.
+ */
+void fw_devlink_resume(void)
+{
+ mutex_lock(&defer_fw_devlink_lock);
+ if (!defer_fw_devlink_count) {
+ WARN(true, "Unmatched fw_devlink pause/resume!");
+ goto out;
+ }
+
+ defer_fw_devlink_count--;
+ if (defer_fw_devlink_count)
+ goto out;
+
+ device_link_add_missing_supplier_links();
+ driver_deferred_probe_force_trigger();
+out:
+ mutex_unlock(&defer_fw_devlink_lock);
+}
/* Device links support end. */
int (*platform_notify)(struct device *dev) = NULL;
@@ -2364,36 +2529,6 @@ static int device_private_init(struct device *dev)
return 0;
}
-static u32 fw_devlink_flags;
-static int __init fw_devlink_setup(char *arg)
-{
- if (!arg)
- return -EINVAL;
-
- if (strcmp(arg, "off") == 0) {
- fw_devlink_flags = 0;
- } else if (strcmp(arg, "permissive") == 0) {
- fw_devlink_flags = DL_FLAG_SYNC_STATE_ONLY;
- } else if (strcmp(arg, "on") == 0) {
- fw_devlink_flags = DL_FLAG_AUTOPROBE_CONSUMER;
- } else if (strcmp(arg, "rpm") == 0) {
- fw_devlink_flags = DL_FLAG_AUTOPROBE_CONSUMER |
- DL_FLAG_PM_RUNTIME;
- }
- return 0;
-}
-early_param("fw_devlink", fw_devlink_setup);
-
-u32 fw_devlink_get_flags(void)
-{
- return fw_devlink_flags;
-}
-
-static bool fw_devlink_is_permissive(void)
-{
- return fw_devlink_flags == DL_FLAG_SYNC_STATE_ONLY;
-}
-
/**
* device_add - add device to device hierarchy.
* @dev: device.
@@ -2426,9 +2561,8 @@ int device_add(struct device *dev)
struct device *parent;
struct kobject *kobj;
struct class_interface *class_intf;
- int error = -EINVAL, fw_ret;
+ int error = -EINVAL;
struct kobject *glue_dir = NULL;
- bool is_fwnode_dev = false;
dev = get_device(dev);
if (!dev)
@@ -2526,11 +2660,6 @@ int device_add(struct device *dev)
kobject_uevent(&dev->kobj, KOBJ_ADD);
- if (dev->fwnode && !dev->fwnode->dev) {
- dev->fwnode->dev = dev;
- is_fwnode_dev = true;
- }
-
/*
* Check if any of the other devices (consumers) have been waiting for
* this device (supplier) to be added so that they can create a device
@@ -2539,19 +2668,13 @@ int device_add(struct device *dev)
* This needs to happen after device_pm_add() because device_link_add()
* requires the supplier be registered before it's called.
*
- * But this also needs to happe before bus_probe_device() to make sure
+ * But this also needs to happen before bus_probe_device() to make sure
* waiting consumers can link to it before the driver is bound to the
* device and the driver sync_state callback is called for this device.
*/
- device_link_add_missing_supplier_links();
-
- if (fw_devlink_flags && is_fwnode_dev &&
- fwnode_has_op(dev->fwnode, add_links)) {
- fw_ret = fwnode_call_int_op(dev->fwnode, add_links, dev);
- if (fw_ret == -ENODEV && !fw_devlink_is_permissive())
- device_link_wait_for_mandatory_supplier(dev);
- else if (fw_ret)
- device_link_wait_for_optional_supplier(dev);
+ if (dev->fwnode && !dev->fwnode->dev) {
+ dev->fwnode->dev = dev;
+ fw_devlink_link_device(dev);
}
bus_probe_device(dev);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 94037be7f5d7..9a1d940342ac 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -164,6 +164,11 @@ static void driver_deferred_probe_trigger(void)
if (!driver_deferred_probe_enable)
return;
+ driver_deferred_probe_force_trigger();
+}
+
+void driver_deferred_probe_force_trigger(void)
+{
/*
* A successful probe means that all the devices in the pending list
* should be triggered to be reprobed. Move all the deferred devices
@@ -254,12 +259,12 @@ __setup("deferred_probe_timeout=", deferred_probe_timeout_setup);
int driver_deferred_probe_check_state(struct device *dev)
{
if (!IS_ENABLED(CONFIG_MODULES) && initcalls_done) {
- dev_warn(dev, "ignoring dependency for device, assuming no driver");
+ dev_warn(dev, "ignoring dependency for device, assuming no driver\n");
return -ENODEV;
}
if (!driver_deferred_probe_timeout && initcalls_done) {
- dev_warn(dev, "deferred probe timeout, ignoring dependency");
+ dev_warn(dev, "deferred probe timeout, ignoring dependency\n");
return -ETIMEDOUT;
}
@@ -275,7 +280,7 @@ static void deferred_probe_timeout_work_func(struct work_struct *work)
flush_work(&deferred_probe_work);
list_for_each_entry_safe(private, p, &deferred_probe_pending_list, deferred_probe)
- dev_info(private->device, "deferred probe pending");
+ dev_info(private->device, "deferred probe pending\n");
wake_up(&probe_timeout_waitqueue);
}
static DECLARE_DELAYED_WORK(deferred_probe_timeout_work, deferred_probe_timeout_work_func);
@@ -336,7 +341,7 @@ bool device_is_bound(struct device *dev)
static void driver_bound(struct device *dev)
{
if (device_is_bound(dev)) {
- printk(KERN_WARNING "%s: device %s already bound\n",
+ pr_warn("%s: device %s already bound\n",
__func__, kobject_name(&dev->kobj));
return;
}
@@ -505,8 +510,8 @@ re_probe:
}
if (driver_sysfs_add(dev)) {
- printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
- __func__, dev_name(dev));
+ pr_err("%s: driver_sysfs_add(%s) failed\n",
+ __func__, dev_name(dev));
goto probe_failed;
}
@@ -597,9 +602,8 @@ pinctrl_bind_failed:
break;
default:
/* driver matched but the probe failed */
- printk(KERN_WARNING
- "%s: probe of %s failed with error %d\n",
- drv->name, dev_name(dev), ret);
+ pr_warn("%s: probe of %s failed with error %d\n",
+ drv->name, dev_name(dev), ret);
}
/*
* Ignore errors returned by ->probe so that the next driver can try
@@ -624,8 +628,8 @@ static int really_probe_debug(struct device *dev, struct device_driver *drv)
ret = really_probe(dev, drv);
rettime = ktime_get();
delta = ktime_sub(rettime, calltime);
- printk(KERN_DEBUG "probe of %s returned %d after %lld usecs\n",
- dev_name(dev), ret, (s64) ktime_to_us(delta));
+ pr_debug("probe of %s returned %d after %lld usecs\n",
+ dev_name(dev), ret, (s64) ktime_to_us(delta));
return ret;
}
@@ -713,8 +717,7 @@ static inline bool cmdline_requested_async_probing(const char *drv_name)
static int __init save_async_options(char *buf)
{
if (strlen(buf) >= ASYNC_DRV_NAMES_MAX_LEN)
- printk(KERN_WARNING
- "Too long list of driver names for 'driver_async_probe'!\n");
+ pr_warn("Too long list of driver names for 'driver_async_probe'!\n");
strlcpy(async_probe_drv_names, buf, ASYNC_DRV_NAMES_MAX_LEN);
return 0;
@@ -789,7 +792,7 @@ static int __device_attach_driver(struct device_driver *drv, void *_data)
dev_dbg(dev, "Device match requests probe deferral\n");
driver_deferred_probe_add(dev);
} else if (ret < 0) {
- dev_dbg(dev, "Bus failed to match device: %d", ret);
+ dev_dbg(dev, "Bus failed to match device: %d\n", ret);
return ret;
} /* ret > 0 means positive match */
@@ -1022,7 +1025,7 @@ static int __driver_attach(struct device *dev, void *data)
dev_dbg(dev, "Device match requests probe deferral\n");
driver_deferred_probe_add(dev);
} else if (ret < 0) {
- dev_dbg(dev, "Bus failed to match device: %d", ret);
+ dev_dbg(dev, "Bus failed to match device: %d\n", ret);
return ret;
} /* ret > 0 means positive match */
diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
index 1e9c96e3ed63..5327bfc6ba71 100644
--- a/drivers/base/firmware_loader/fallback.c
+++ b/drivers/base/firmware_loader/fallback.c
@@ -9,6 +9,7 @@
#include <linux/umh.h>
#include <linux/sysctl.h>
#include <linux/vmalloc.h>
+#include <linux/module.h>
#include "fallback.h"
#include "firmware.h"
@@ -17,6 +18,8 @@
* firmware fallback mechanism
*/
+MODULE_IMPORT_NS(FIRMWARE_LOADER_PRIVATE);
+
extern struct firmware_fallback_config fw_fallback_config;
/* These getters are vetted to use int properly */
@@ -460,7 +463,7 @@ static const struct attribute_group *fw_dev_attr_groups[] = {
static struct fw_sysfs *
fw_create_instance(struct firmware *firmware, const char *fw_name,
- struct device *device, enum fw_opt opt_flags)
+ struct device *device, u32 opt_flags)
{
struct fw_sysfs *fw_sysfs;
struct device *f_dev;
@@ -493,7 +496,7 @@ exit:
* In charge of constructing a sysfs fallback interface for firmware loading.
**/
static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs,
- enum fw_opt opt_flags, long timeout)
+ u32 opt_flags, long timeout)
{
int retval = 0;
struct device *f_dev = &fw_sysfs->dev;
@@ -547,7 +550,7 @@ err_put_dev:
static int fw_load_from_user_helper(struct firmware *firmware,
const char *name, struct device *device,
- enum fw_opt opt_flags)
+ u32 opt_flags)
{
struct fw_sysfs *fw_sysfs;
long timeout;
@@ -588,7 +591,7 @@ out_unlock:
return ret;
}
-static bool fw_force_sysfs_fallback(enum fw_opt opt_flags)
+static bool fw_force_sysfs_fallback(u32 opt_flags)
{
if (fw_fallback_config.force_sysfs_fallback)
return true;
@@ -597,7 +600,7 @@ static bool fw_force_sysfs_fallback(enum fw_opt opt_flags)
return true;
}
-static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
+static bool fw_run_sysfs_fallback(u32 opt_flags)
{
int ret;
@@ -640,7 +643,7 @@ static bool fw_run_sysfs_fallback(enum fw_opt opt_flags)
**/
int firmware_fallback_sysfs(struct firmware *fw, const char *name,
struct device *device,
- enum fw_opt opt_flags,
+ u32 opt_flags,
int ret)
{
if (!fw_run_sysfs_fallback(opt_flags))
diff --git a/drivers/base/firmware_loader/fallback.h b/drivers/base/firmware_loader/fallback.h
index 06f4577733a8..2afdb6adb23f 100644
--- a/drivers/base/firmware_loader/fallback.h
+++ b/drivers/base/firmware_loader/fallback.h
@@ -33,7 +33,7 @@ struct firmware_fallback_config {
#ifdef CONFIG_FW_LOADER_USER_HELPER
int firmware_fallback_sysfs(struct firmware *fw, const char *name,
struct device *device,
- enum fw_opt opt_flags,
+ u32 opt_flags,
int ret);
void kill_pending_fw_fallback_reqs(bool only_kill_custom);
@@ -45,7 +45,7 @@ void unregister_sysfs_loader(void);
#else /* CONFIG_FW_LOADER_USER_HELPER */
static inline int firmware_fallback_sysfs(struct firmware *fw, const char *name,
struct device *device,
- enum fw_opt opt_flags,
+ u32 opt_flags,
int ret)
{
/* Keep carrying over the same error */
@@ -67,10 +67,10 @@ static inline void unregister_sysfs_loader(void)
#endif /* CONFIG_FW_LOADER_USER_HELPER */
#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
-int firmware_fallback_platform(struct fw_priv *fw_priv, enum fw_opt opt_flags);
+int firmware_fallback_platform(struct fw_priv *fw_priv, u32 opt_flags);
#else
static inline int firmware_fallback_platform(struct fw_priv *fw_priv,
- enum fw_opt opt_flags)
+ u32 opt_flags)
{
return -ENOENT;
}
diff --git a/drivers/base/firmware_loader/fallback_platform.c b/drivers/base/firmware_loader/fallback_platform.c
index c88c745590fe..cdd2c9a9f38a 100644
--- a/drivers/base/firmware_loader/fallback_platform.c
+++ b/drivers/base/firmware_loader/fallback_platform.c
@@ -8,7 +8,7 @@
#include "fallback.h"
#include "firmware.h"
-int firmware_fallback_platform(struct fw_priv *fw_priv, enum fw_opt opt_flags)
+int firmware_fallback_platform(struct fw_priv *fw_priv, u32 opt_flags)
{
const u8 *data;
size_t size;
diff --git a/drivers/base/firmware_loader/fallback_table.c b/drivers/base/firmware_loader/fallback_table.c
index a182e318bd09..46a731dede6f 100644
--- a/drivers/base/firmware_loader/fallback_table.c
+++ b/drivers/base/firmware_loader/fallback_table.c
@@ -21,7 +21,7 @@ struct firmware_fallback_config fw_fallback_config = {
.loading_timeout = 60,
.old_timeout = 60,
};
-EXPORT_SYMBOL_GPL(fw_fallback_config);
+EXPORT_SYMBOL_NS_GPL(fw_fallback_config, FIRMWARE_LOADER_PRIVATE);
#ifdef CONFIG_SYSCTL
struct ctl_table firmware_config_table[] = {
diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h
index 25836a6afc9f..933e2192fbe8 100644
--- a/drivers/base/firmware_loader/firmware.h
+++ b/drivers/base/firmware_loader/firmware.h
@@ -136,8 +136,7 @@ static inline void fw_state_done(struct fw_priv *fw_priv)
__fw_state_set(fw_priv, FW_STATUS_DONE);
}
-int assign_fw(struct firmware *fw, struct device *device,
- enum fw_opt opt_flags);
+int assign_fw(struct firmware *fw, struct device *device, u32 opt_flags);
#ifdef CONFIG_FW_LOADER_PAGED_BUF
void fw_free_paged_buf(struct fw_priv *fw_priv);
diff --git a/drivers/base/firmware_loader/main.c b/drivers/base/firmware_loader/main.c
index 76f79913916d..ca871b13524e 100644
--- a/drivers/base/firmware_loader/main.c
+++ b/drivers/base/firmware_loader/main.c
@@ -210,7 +210,7 @@ static struct fw_priv *__lookup_fw_priv(const char *fw_name)
static int alloc_lookup_fw_priv(const char *fw_name,
struct firmware_cache *fwc,
struct fw_priv **fw_priv, void *dbuf,
- size_t size, enum fw_opt opt_flags)
+ size_t size, u32 opt_flags)
{
struct fw_priv *tmp;
@@ -548,9 +548,6 @@ static void firmware_free_data(const struct firmware *fw)
static void fw_set_page_data(struct fw_priv *fw_priv, struct firmware *fw)
{
fw->priv = fw_priv;
-#ifdef CONFIG_FW_LOADER_USER_HELPER
- fw->pages = fw_priv->pages;
-#endif
fw->size = fw_priv->size;
fw->data = fw_priv->data;
@@ -635,8 +632,7 @@ static int fw_add_devm_name(struct device *dev, const char *name)
}
#endif
-int assign_fw(struct firmware *fw, struct device *device,
- enum fw_opt opt_flags)
+int assign_fw(struct firmware *fw, struct device *device, u32 opt_flags)
{
struct fw_priv *fw_priv = fw->priv;
int ret;
@@ -687,7 +683,7 @@ int assign_fw(struct firmware *fw, struct device *device,
static int
_request_firmware_prepare(struct firmware **firmware_p, const char *name,
struct device *device, void *dbuf, size_t size,
- enum fw_opt opt_flags)
+ u32 opt_flags)
{
struct firmware *firmware;
struct fw_priv *fw_priv;
@@ -753,7 +749,7 @@ static void fw_abort_batch_reqs(struct firmware *fw)
static int
_request_firmware(const struct firmware **firmware_p, const char *name,
struct device *device, void *buf, size_t size,
- enum fw_opt opt_flags)
+ u32 opt_flags)
{
struct firmware *fw = NULL;
int ret;
@@ -990,7 +986,7 @@ struct firmware_work {
struct device *device;
void *context;
void (*cont)(const struct firmware *fw, void *context);
- enum fw_opt opt_flags;
+ u32 opt_flags;
};
static void request_firmware_work_func(struct work_struct *work)
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 4b49641effa1..c0d0a5490ac6 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -682,7 +682,7 @@ EXPORT_SYMBOL_GPL(platform_device_unregister);
struct platform_device *platform_device_register_full(
const struct platform_device_info *pdevinfo)
{
- int ret = -ENOMEM;
+ int ret;
struct platform_device *pdev;
pdev = platform_device_alloc(pdevinfo->name, pdevinfo->id);
@@ -863,6 +863,8 @@ int __init_or_module __platform_driver_probe(struct platform_driver *drv,
/* temporary section violation during probe() */
drv->probe = probe;
retval = code = __platform_driver_register(drv, module);
+ if (retval)
+ return retval;
/*
* Fixup that section violation, being paranoid about code scanning
@@ -987,7 +989,7 @@ EXPORT_SYMBOL_GPL(__platform_register_drivers);
* @drivers: an array of drivers to unregister
* @count: the number of drivers to unregister
*
- * Unegisters platform drivers specified by an array. This is typically used
+ * Unregisters platform drivers specified by an array. This is typically used
* to complement an earlier call to platform_register_drivers(). Drivers are
* unregistered in the reverse order in which they were registered.
*/
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 5f35c0ccf5e0..1e6d75e65938 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -708,14 +708,23 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev,
struct fwnode_handle *child)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
- struct fwnode_handle *fwnode = NULL;
+ struct fwnode_handle *fwnode = NULL, *next;
if (dev->of_node)
fwnode = &dev->of_node->fwnode;
else if (adev)
fwnode = acpi_fwnode_handle(adev);
- return fwnode_get_next_child_node(fwnode, child);
+ /* Try to find a child in primary fwnode */
+ next = fwnode_get_next_child_node(fwnode, child);
+ if (next)
+ return next;
+
+ /* When no more children in primary, continue with secondary */
+ if (!IS_ERR_OR_NULL(fwnode->secondary))
+ next = fwnode_get_next_child_node(fwnode->secondary, child);
+
+ return next;
}
EXPORT_SYMBOL_GPL(device_get_next_child_node);
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 4af11a423475..a5bae551167d 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -46,7 +46,7 @@ static umode_t soc_attribute_mode(struct kobject *kobj,
struct attribute *attr,
int index)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev = kobj_to_dev(kobj);
struct soc_device *soc_dev = container_of(dev, struct soc_device, dev);
if ((attr == &dev_attr_machine.attr)
diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index 2079937ddb51..e5eb27375416 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -712,17 +712,18 @@ EXPORT_SYMBOL_GPL(software_node_register_nodes);
* @nodes: Zero terminated array of software nodes to be unregistered
*
* Unregister multiple software nodes at once.
+ *
+ * NOTE: Be careful using this call if the nodes had parent pointers set up in
+ * them before registering. If so, it is wiser to remove the nodes
+ * individually, in the correct order (child before parent) instead of relying
+ * on the sequential order of the list of nodes in the array.
*/
void software_node_unregister_nodes(const struct software_node *nodes)
{
- struct swnode *swnode;
int i;
- for (i = 0; nodes[i].name; i++) {
- swnode = software_node_to_swnode(&nodes[i]);
- if (swnode)
- fwnode_remove_software_node(&swnode->fwnode);
- }
+ for (i = 0; nodes[i].name; i++)
+ software_node_unregister(&nodes[i]);
}
EXPORT_SYMBOL_GPL(software_node_unregister_nodes);
@@ -789,6 +790,20 @@ int software_node_register(const struct software_node *node)
}
EXPORT_SYMBOL_GPL(software_node_register);
+/**
+ * software_node_unregister - Unregister static software node
+ * @node: The software node to be unregistered
+ */
+void software_node_unregister(const struct software_node *node)
+{
+ struct swnode *swnode;
+
+ swnode = software_node_to_swnode(node);
+ if (swnode)
+ fwnode_remove_software_node(&swnode->fwnode);
+}
+EXPORT_SYMBOL_GPL(software_node_unregister);
+
struct fwnode_handle *
fwnode_create_software_node(const struct property_entry *properties,
const struct fwnode_handle *parent)
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 3627fee60215..071f04da32c8 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -538,7 +538,9 @@ static int __init of_platform_default_populate_init(void)
}
/* Populate everything else. */
+ fw_devlink_pause();
of_platform_default_populate(NULL, NULL, NULL);
+ fw_devlink_resume();
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 10:13:58 +0000