Commit e3d21939 authored by Mathieu Poirier's avatar Mathieu Poirier Committed by Bjorn Andersson

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: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: default avatarArnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20200714195035.1426873-8-mathieu.poirier@linaro.orgSigned-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 0f9dc562
......@@ -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.
......
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