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Subject[PATCH 3/5] remoteproc: Make client initialize ops in rproc_subdev
Date
From: Bjorn Andersson <bjorn.andersson@linaro.org>

In preparation of adding the additional prepare and unprepare operations
make the client responsible for filling out the function pointers of the
rproc_subdev. This makes the arguments to rproc_add_subdev() more
manageable, in particular when some of the functions are left out.

[elder@linaro.org: added comment about assigning function pointers]

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Alex Elder <elder@linaro.org>
---
drivers/remoteproc/qcom_common.c | 18 ++++++++++--------
drivers/remoteproc/qcom_sysmon.c | 5 ++++-
drivers/remoteproc/remoteproc_core.c | 18 +++++++-----------
include/linux/remoteproc.h | 5 +----
4 files changed, 22 insertions(+), 24 deletions(-)

diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index acfc99f82fb8..4ae87c5b8793 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -64,7 +64,10 @@ void qcom_add_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink)
return;

glink->dev = dev;
- rproc_add_subdev(rproc, &glink->subdev, glink_subdev_probe, glink_subdev_remove);
+ glink->subdev.start = glink_subdev_probe;
+ glink->subdev.stop = glink_subdev_remove;
+
+ rproc_add_subdev(rproc, &glink->subdev);
}
EXPORT_SYMBOL_GPL(qcom_add_glink_subdev);

@@ -157,7 +160,10 @@ void qcom_add_smd_subdev(struct rproc *rproc, struct qcom_rproc_subdev *smd)
return;

smd->dev = dev;
- rproc_add_subdev(rproc, &smd->subdev, smd_subdev_probe, smd_subdev_remove);
+ smd->subdev.start = smd_subdev_probe;
+ smd->subdev.stop = smd_subdev_remove;
+
+ rproc_add_subdev(rproc, &smd->subdev);
}
EXPORT_SYMBOL_GPL(qcom_add_smd_subdev);

@@ -202,11 +208,6 @@ void qcom_unregister_ssr_notifier(struct notifier_block *nb)
}
EXPORT_SYMBOL_GPL(qcom_unregister_ssr_notifier);

-static int ssr_notify_start(struct rproc_subdev *subdev)
-{
- return 0;
-}
-
static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed)
{
struct qcom_rproc_ssr *ssr = to_ssr_subdev(subdev);
@@ -227,8 +228,9 @@ void qcom_add_ssr_subdev(struct rproc *rproc, struct qcom_rproc_ssr *ssr,
const char *ssr_name)
{
ssr->name = ssr_name;
+ ssr->subdev.stop = ssr_notify_stop;

- rproc_add_subdev(rproc, &ssr->subdev, ssr_notify_start, ssr_notify_stop);
+ rproc_add_subdev(rproc, &ssr->subdev);
}
EXPORT_SYMBOL_GPL(qcom_add_ssr_subdev);

diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
index f085545d7da5..e976a602b015 100644
--- a/drivers/remoteproc/qcom_sysmon.c
+++ b/drivers/remoteproc/qcom_sysmon.c
@@ -469,7 +469,10 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc,

qmi_add_lookup(&sysmon->qmi, 43, 0, 0);

- rproc_add_subdev(rproc, &sysmon->subdev, sysmon_start, sysmon_stop);
+ sysmon->subdev.start = sysmon_start;
+ sysmon->subdev.stop = sysmon_stop;
+
+ rproc_add_subdev(rproc, &sysmon->subdev);

sysmon->nb.notifier_call = sysmon_notify;
blocking_notifier_chain_register(&sysmon_notifiers, &sysmon->nb);
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 981ae6dff145..ca39fad175f2 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -399,8 +399,10 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,

list_add_tail(&rvdev->node, &rproc->rvdevs);

- rproc_add_subdev(rproc, &rvdev->subdev,
- rproc_vdev_do_probe, rproc_vdev_do_remove);
+ rvdev->subdev.start = rproc_vdev_do_probe;
+ rvdev->subdev.stop = rproc_vdev_do_remove;
+
+ rproc_add_subdev(rproc, &rvdev->subdev);

return 0;

@@ -1663,17 +1665,11 @@ EXPORT_SYMBOL(rproc_del);
* rproc_add_subdev() - add a subdevice to a remoteproc
* @rproc: rproc handle to add the subdevice to
* @subdev: subdev handle to register
- * @start: function to call after the rproc is started
- * @stop: function to call before the rproc is stopped
+ *
+ * Caller is responsible for populating optional subdevice function pointers.
*/
-void rproc_add_subdev(struct rproc *rproc,
- struct rproc_subdev *subdev,
- int (*start)(struct rproc_subdev *subdev),
- void (*stop)(struct rproc_subdev *subdev, bool crashed))
+void rproc_add_subdev(struct rproc *rproc, struct rproc_subdev *subdev)
{
- subdev->start = start;
- subdev->stop = stop;
-
list_add_tail(&subdev->node, &rproc->subdevs);
}
EXPORT_SYMBOL(rproc_add_subdev);
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index bf55bf2a5ee1..8f1426330cca 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -566,10 +566,7 @@ static inline struct rproc *vdev_to_rproc(struct virtio_device *vdev)
return rvdev->rproc;
}

-void rproc_add_subdev(struct rproc *rproc,
- struct rproc_subdev *subdev,
- int (*start)(struct rproc_subdev *subdev),
- void (*stop)(struct rproc_subdev *subdev, bool crashed));
+void rproc_add_subdev(struct rproc *rproc, struct rproc_subdev *subdev);

void rproc_remove_subdev(struct rproc *rproc, struct rproc_subdev *subdev);

--
2.17.0
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