diff options
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/core/device-remove.c | 8 | ||||
| -rw-r--r-- | drivers/core/device.c | 9 | ||||
| -rw-r--r-- | drivers/core/root.c | 5 |
4 files changed, 32 insertions, 0 deletions
diff --git a/drivers/core/Kconfig b/drivers/core/Kconfig index 8f7703c8b58..5c3400417f9 100644 --- a/drivers/core/Kconfig +++ b/drivers/core/Kconfig @@ -77,6 +77,16 @@ config DM_DEVICE_REMOVE it causes unplugged devices to linger around in the dm-tree, and it causes USB host controllers to not be stopped when booting the OS. +config DM_EVENT + bool "Support events with driver model" + depends on DM + imply EVENT + default y if SANDBOX + help + This enables support for generating events related to driver model + operations, such as prbing or removing a device. Subsystems can + register a 'spy' function that is called when the event occurs. + config SPL_DM_DEVICE_REMOVE bool "Support device removal in SPL" depends on SPL_DM diff --git a/drivers/core/device-remove.c b/drivers/core/device-remove.c index e6ec6ff4212..73d2e9e4208 100644 --- a/drivers/core/device-remove.c +++ b/drivers/core/device-remove.c @@ -207,6 +207,10 @@ int device_remove(struct udevice *dev, uint flags) if (!(dev_get_flags(dev) & DM_FLAG_ACTIVATED)) return 0; + ret = device_notify(dev, EVT_DM_PRE_REMOVE); + if (ret) + return ret; + /* * If the child returns EKEYREJECTED, continue. It just means that it * didn't match the flags. @@ -256,6 +260,10 @@ int device_remove(struct udevice *dev, uint flags) dev_bic_flags(dev, DM_FLAG_ACTIVATED); + ret = device_notify(dev, EVT_DM_POST_REMOVE); + if (ret) + goto err_remove; + return 0; err_remove: diff --git a/drivers/core/device.c b/drivers/core/device.c index 901c1e2f7db..1b356f12dd8 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -10,6 +10,7 @@ #include <common.h> #include <cpu_func.h> +#include <event.h> #include <log.h> #include <asm/global_data.h> #include <asm/io.h> @@ -493,6 +494,10 @@ int device_probe(struct udevice *dev) if (dev_get_flags(dev) & DM_FLAG_ACTIVATED) return 0; + ret = device_notify(dev, EVT_DM_PRE_PROBE); + if (ret) + return ret; + drv = dev->driver; assert(drv); @@ -597,6 +602,10 @@ int device_probe(struct udevice *dev) dev->name, ret, errno_str(ret)); } + ret = device_notify(dev, EVT_DM_POST_PROBE); + if (ret) + return ret; + return 0; fail_uclass: if (device_remove(dev, DM_REMOVE_NORMAL)) { diff --git a/drivers/core/root.c b/drivers/core/root.c index e3f87956d86..8efb4256b27 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -404,6 +404,11 @@ int dm_init_and_scan(bool pre_reloc_only) return ret; } } + if (CONFIG_IS_ENABLED(DM_EVENT)) { + ret = event_notify_null(EVT_DM_POST_INIT); + if (ret) + return log_msg_ret("ev", ret); + } return 0; } |