diff options
| author | Maulik Shah <quic_mkshah@quicinc.com> | 2022-10-18 18:28:37 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2022-11-10 06:15:27 +0300 |
| commit | cccbe3e528bebcba9e9c33cde7fb4f4344524c93 (patch) | |
| tree | 45ac664f2ab7faccf6a5ba177f872fbe2daf5a91 /drivers/soc/qcom/rpmh.c | |
| parent | ab33c8f3a8325eb2343534968c38e35d8129be87 (diff) | |
| download | linux-cccbe3e528bebcba9e9c33cde7fb4f4344524c93.tar.xz | |
soc: qcom: rpmh-rsc: Write CONTROL_TCS with next timer wakeup
The next wakeup timer value needs to be set in always on domain timer
as the arch timer interrupt can not wakeup the SoC if after the deepest
CPUidle states the SoC also enters deepest low power state.
To wakeup the SoC in such scenarios the earliest wakeup time is set in
CONTROL_TCS and the firmware takes care of setting up its own timer in
always on domain with next wakeup time. The timer wakes up the RSC and
sets resources back to wake state.
Signed-off-by: Maulik Shah <quic_mkshah@quicinc.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> # SM8450
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221018152837.619426-7-ulf.hansson@linaro.org
Diffstat (limited to 'drivers/soc/qcom/rpmh.c')
| -rw-r--r-- | drivers/soc/qcom/rpmh.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c index 01765ee9cdfb..3a53ed99d03c 100644 --- a/drivers/soc/qcom/rpmh.c +++ b/drivers/soc/qcom/rpmh.c @@ -450,7 +450,7 @@ int rpmh_flush(struct rpmh_ctrlr *ctrlr) if (!ctrlr->dirty) { pr_debug("Skipping flush, TCS has latest data.\n"); - goto exit; + goto write_next_wakeup; } /* Invalidate the TCSes first to avoid stale data */ @@ -479,6 +479,8 @@ int rpmh_flush(struct rpmh_ctrlr *ctrlr) ctrlr->dirty = false; +write_next_wakeup: + rpmh_rsc_write_next_wakeup(ctrlr_to_drv(ctrlr)); exit: spin_unlock(&ctrlr->cache_lock); return ret; |