diff options
Diffstat (limited to 'drivers/core')
| -rw-r--r-- | drivers/core/device.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 74bb5f0f8e..42d250f4a4 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -218,6 +218,13 @@ static void device_free(struct udevice *dev) free(dev->uclass_priv); dev->uclass_priv = NULL; } + if (dev->parent) { + size = dev->parent->driver->per_child_auto_alloc_size; + if (size) { + free(dev->parent_priv); + dev->parent_priv = NULL; + } + } } int device_probe(struct udevice *dev) @@ -263,6 +270,15 @@ int device_probe(struct udevice *dev) /* Ensure all parents are probed */ if (dev->parent) { + size = dev->parent->driver->per_child_auto_alloc_size; + if (size) { + dev->parent_priv = calloc(1, size); + if (!dev->parent_priv) { + ret = -ENOMEM; + goto fail; + } + } + ret = device_probe(dev->parent); if (ret) goto fail; @@ -377,6 +393,16 @@ void *dev_get_priv(struct udevice *dev) return dev->priv; } +void *dev_get_parentdata(struct udevice *dev) +{ + if (!dev) { + dm_warn("%s: null device", __func__); + return NULL; + } + + return dev->parent_priv; +} + static int device_get_device_tail(struct udevice *dev, int ret, struct udevice **devp) { |