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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-06-26 07:11:56 -0500 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-06-26 13:53:06 -0700 |
| commit | be37b1e0fb100a369cfb7ebf016491dfb6c71987 (patch) | |
| tree | 360bbd42f51cba5e7b472745b975d48e838f4002 /drivers/remoteproc/remoteproc_core.c | |
| parent | 618fcff3742b4c62fea24bea1f01a2f002ed4b37 (diff) | |
| download | linux-be37b1e0fb100a369cfb7ebf016491dfb6c71987.tar.gz | |
remoteproc: Make start and stop in subdev optional
Some subdevices, such as glink ssr only care about the stop operation, so make the operations optional to reduce client code. Tested-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by Alex Elder <elder@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc/remoteproc_core.c')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 5dd58e6bea88..981ae6dff145 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -780,16 +780,20 @@ static int rproc_start_subdevices(struct rproc *rproc) int ret; list_for_each_entry(subdev, &rproc->subdevs, node) { - ret = subdev->start(subdev); - if (ret) - goto unroll_registration; + if (subdev->start) { + ret = subdev->start(subdev); + if (ret) + goto unroll_registration; + } } return 0; unroll_registration: - list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) - subdev->stop(subdev, true); + list_for_each_entry_continue_reverse(subdev, &rproc->subdevs, node) { + if (subdev->stop) + subdev->stop(subdev, true); + } return ret; } @@ -798,8 +802,10 @@ static void rproc_stop_subdevices(struct rproc *rproc, bool crashed) { struct rproc_subdev *subdev; - list_for_each_entry_reverse(subdev, &rproc->subdevs, node) - subdev->stop(subdev, crashed); + list_for_each_entry_reverse(subdev, &rproc->subdevs, node) { + if (subdev->stop) + subdev->stop(subdev, crashed); + } } /** |