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| author |   Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> | 2022-09-21 15:50:44 +0200 |
|---|---|---|
| committer |   Mathieu Poirier <mathieu.poirier@linaro.org> | 2022-09-21 11:15:04 -0600 |
| commit | 1d7b61c06dc310421911dac7c5d2d15b754c8b63 (patch) | |
| tree | ea210bfff5a65b7df6fde3bd807b34f6bc0e193e /include/linux/remoteproc.h | |
| parent | remoteproc: Move rproc_vdev management to remoteproc_virtio.c (diff) | |
| download | wireguard-linux-1d7b61c06dc310421911dac7c5d2d15b754c8b63.tar.xz wireguard-linux-1d7b61c06dc310421911dac7c5d2d15b754c8b63.zip | |
remoteproc: virtio: Create platform device for the remoteproc_virtio
Define a platform driver to manage the remoteproc virtio device as
a platform devices.
The platform device allows to pass rproc_vdev_data platform data to
specify properties that are stored in the rproc_vdev structure.
Such approach will allow to preserve legacy remoteproc virtio device
creation but also to probe the device using device tree mechanism.
remoteproc_virtio.c update:
- Add rproc_virtio_driver platform driver. The probe ops replaces
the rproc_rvdev_add_device function.
- All reference to the rvdev->dev has been updated to rvdev-pdev->dev.
- rproc_rvdev_release is removed as associated to the rvdev device.
- The use of rvdev->kref counter is replaced by get/put_device on the
remoteproc virtio platform device.
- The vdev device no longer increments rproc device counter.
increment/decrement is done in rproc_virtio_probe/rproc_virtio_remove
function in charge of the vrings allocation/free.
remoteproc_core.c update:
Migrate from the rvdev device to the rvdev platform device.
From this patch, when a vdev resource is found in the resource table
the remoteproc core register a platform device.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20220921135044.917140-5-arnaud.pouliquen@foss.st.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'include/linux/remoteproc.h')
| -rw-r--r-- | include/linux/remoteproc.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index aea79c77db0f..1abf56ad02da 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -616,9 +616,8 @@ struct rproc_vring { /** * struct rproc_vdev - remoteproc state for a supported virtio device - * @refcount: reference counter for the vdev and vring allocations * @subdev: handle for registering the vdev as a rproc subdevice - * @dev: device struct used for reference count semantics + * @pdev: remoteproc virtio platform device * @id: virtio device id (as in virtio_ids.h) * @node: list node * @rproc: the rproc handle @@ -627,10 +626,9 @@ struct rproc_vring { * @index: vdev position versus other vdev declared in resource table */ struct rproc_vdev { - struct kref refcount; struct rproc_subdev subdev; - struct device dev; + struct platform_device *pdev; unsigned int id; struct list_head node; |