core: extend struct driver_info to point to device
Currently when creating an U_BOOT_DEVICE entry a struct driver_info
is declared, which contains the data needed to instantiate the device.
However, the actual device is created at runtime and there is no proper
way to get the device based on its struct driver_info.
This patch extends struct driver_info adding a pointer to udevice which
is populated during the bind process, allowing to generate a set of
functions to get the device based on its struct driver_info.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 2d6c667..476133f 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -252,6 +252,7 @@
{
struct driver *drv;
uint platdata_size = 0;
+ int ret;
drv = lists_driver_lookup_name(info->name);
if (!drv)
@@ -262,9 +263,16 @@
#if CONFIG_IS_ENABLED(OF_PLATDATA)
platdata_size = info->platdata_size;
#endif
- return device_bind_common(parent, drv, info->name,
- (void *)info->platdata, 0, ofnode_null(), platdata_size,
- devp);
+ ret = device_bind_common(parent, drv, info->name,
+ (void *)info->platdata, 0, ofnode_null(),
+ platdata_size, devp);
+ if (ret)
+ return ret;
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ info->dev = *devp;
+#endif
+
+ return ret;
}
static void *alloc_priv(int size, uint flags)
@@ -729,6 +737,18 @@
return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp);
}
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+int device_get_by_driver_info(const struct driver_info *info,
+ struct udevice **devp)
+{
+ struct udevice *dev;
+
+ dev = info->dev;
+
+ return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp);
+}
+#endif
+
int device_find_first_child(const struct udevice *parent, struct udevice **devp)
{
if (list_empty(&parent->child_head)) {