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remoteproc: Refactor function rproc_trigger_auto_boot()

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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>
This commit is contained in:
Mathieu Poirier 2020-07-14 13:50:33 -06:00 committed by Bjorn Andersson
parent 0f9dc562b7
commit e3d2193959
1 changed files with 9 additions and 0 deletions
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9
drivers/remoteproc/remoteproc_core.c
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@ -1571,6 +1571,15 @@ 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.