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dm: core: Add dm_remove_devices_flags() and hook it into device_remove()

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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>
This commit is contained in:
Stefan Roese
2017-03-27 10:58:53 +02:00
committed by Simon Glass
parent 706865afe5
commit bc85aa4030
3 changed files with 38 additions and 4 deletions
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17
drivers/core/device-remove.c
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@ -174,7 +174,13 @@ int device_remove(struct udevice *dev, uint flags)
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 @@ int device_remove(struct udevice *dev, uint flags)
}
}
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;