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| author | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-03-12 09:24:51 -0700 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-03-18 08:02:09 -0500 |
| commit | d2008a96833082713094ba8a545141be1b01b266 (patch) | |
| tree | bfc8ddac634d4047488e12bc0410c43c34299c1e /drivers/remoteproc/remoteproc_cdev.c | |
| parent | 83d4e6712c3b1a7dd5b43251737ea3d7d0a460f4 (diff) | |
| download | lwn-d2008a96833082713094ba8a545141be1b01b266.tar.gz lwn-d2008a96833082713094ba8a545141be1b01b266.zip | |
remoteproc: Properly deal with a stop request when attached
Allow a remote processor that was started by another entity to be
switched off by the remoteproc core. For that to happen a
rproc::ops::stop() operation needs to be available.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-16-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc/remoteproc_cdev.c')
| -rw-r--r-- | drivers/remoteproc/remoteproc_cdev.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/remoteproc/remoteproc_cdev.c b/drivers/remoteproc/remoteproc_cdev.c index b2cee9afb41b..0249d8f6c3f8 100644 --- a/drivers/remoteproc/remoteproc_cdev.c +++ b/drivers/remoteproc/remoteproc_cdev.c @@ -38,7 +38,8 @@ static ssize_t rproc_cdev_write(struct file *filp, const char __user *buf, size_ ret = rproc_boot(rproc); } else if (!strncmp(cmd, "stop", len)) { - if (rproc->state != RPROC_RUNNING) + if (rproc->state != RPROC_RUNNING && + rproc->state != RPROC_ATTACHED) return -EINVAL; rproc_shutdown(rproc); |