dm: core: Add dm_remove_devices_flags() and hook it into device_remove()
The new function dm_remove_devices_flags() is intented for driver specific
last-stage cleanup operations before the OS is started. This patch adds
this functionality and hooks it into the common device_remove()
function.
Drivers wanting to use this feature for some last-stage removal calls,
need to add one of the DM_REMOVE_xx flags to their driver .flags.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/device-remove.c b/drivers/core/device-remove.c
index b80bf52..cc0043b 100644
--- a/drivers/core/device-remove.c
+++ b/drivers/core/device-remove.c
@@ -174,7 +174,13 @@
if (ret)
goto err;
- if (drv->remove) {
+ /*
+ * Remove the device if called with the "normal" remove flag set,
+ * or if the remove flag matches any of the drivers remove flags
+ */
+ if (drv->remove &&
+ ((flags & DM_REMOVE_NORMAL) ||
+ (flags & (drv->flags & DM_FLAG_ACTIVE_DMA)))) {
ret = drv->remove(dev);
if (ret)
goto err_remove;
@@ -188,10 +194,13 @@
}
}
- device_free(dev);
+ if ((flags & DM_REMOVE_NORMAL) ||
+ (flags & (drv->flags & DM_FLAG_ACTIVE_DMA))) {
+ device_free(dev);
- dev->seq = -1;
- dev->flags &= ~DM_FLAG_ACTIVATED;
+ dev->seq = -1;
+ dev->flags &= ~DM_FLAG_ACTIVATED;
+ }
return ret;