diff options
| author |   Mathieu Poirier <mathieu.poirier@linaro.org> | 2020-07-14 13:50:33 -0600 |
|---|---|---|
| committer |   Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-07-16 23:06:12 -0700 |
| commit | e3d2193959824e2119996fe361f92b34750de2b0 (patch) | |
| tree | 72d0f430803014c5e4153b8f4d3b534239fc0c05 /drivers/remoteproc | |
| parent | remoteproc: Refactor function rproc_boot() (diff) | |
| download | wireguard-linux-e3d2193959824e2119996fe361f92b34750de2b0.tar.xz wireguard-linux-e3d2193959824e2119996fe361f92b34750de2b0.zip | |
remoteproc: Refactor function rproc_trigger_auto_boot()
Refactor function rproc_trigger_auto_boot() to properly deal
with scenarios where the remoteproc core needs to attach with a
remote processor that has already been booted by an external
entity.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20200714195035.1426873-8-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 1e9fc3112385..1f73dc13ca93 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1572,6 +1572,15 @@ static int rproc_trigger_auto_boot(struct rproc *rproc) int ret; /* + * Since the remote processor is in a detached state, it has already + * been booted by another entity. As such there is no point in waiting + * for a firmware image to be loaded, we can simply initiate the process + * of attaching to it immediately. + */ + if (rproc->state == RPROC_DETACHED) + return rproc_boot(rproc); + + /* * We're initiating an asynchronous firmware loading, so we can * be built-in kernel code, without hanging the boot process. */ |