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| author | Rishabh Bhatnagar <rishabhb@codeaurora.org> | 2020-04-29 11:04:42 -0700 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2020-05-12 12:11:41 -0700 |
| commit | a781e5aa59110d002a56bd41a397c0c8892f0609 (patch) | |
| tree | f078c2f3773148522abe383a98aa1098f7517278 /drivers/remoteproc | |
| parent | 9666174a4e1a7b1e32c214312678f8452275da6a (diff) | |
| download | linux-a781e5aa59110d002a56bd41a397c0c8892f0609.tar.gz linux-a781e5aa59110d002a56bd41a397c0c8892f0609.tar.bz2 linux-a781e5aa59110d002a56bd41a397c0c8892f0609.zip | |
remoteproc: core: Prevent system suspend during remoteproc recovery
The system might go into suspend during recovery of any remoteproc.
This will interrupt the recovery process in between increasing the
recovery time. Make the platform device as wakeup capable and
use pm_stay_wake/pm_relax APIs to avoid system from going into
suspend during recovery.
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1588183482-21146-1-git-send-email-rishabhb@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
| -rw-r--r-- | drivers/remoteproc/qcom_q6v5_pas.c | 2 | ||||
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index 3bb69f58e086..61791a03f648 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -407,6 +407,8 @@ static int adsp_probe(struct platform_device *pdev) adsp->has_aggre2_clk = desc->has_aggre2_clk; platform_set_drvdata(pdev, adsp); + device_wakeup_enable(adsp->dev); + ret = adsp_alloc_memory_region(adsp); if (ret) goto free_rproc; diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 4bd0f45a00c0..7350161a3ed0 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1766,6 +1766,8 @@ static void rproc_crash_handler_work(struct work_struct *work) if (!rproc->recovery_disabled) rproc_trigger_recovery(rproc); + + pm_relax(rproc->dev.parent); } /** @@ -2353,6 +2355,9 @@ void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type) return; } + /* Prevent suspend while the remoteproc is being recovered */ + pm_stay_awake(rproc->dev.parent); + dev_err(&rproc->dev, "crash detected in %s: type %s\n", rproc->name, rproc_crash_to_string(type)); |