linux/drivers/interconnect
Georgi Djakov 5be1805dc3 interconnect: qcom: sdm845: Enable keepalive for the MM1 BCM
After enabling interconnect scaling for display on the db845c board,
in certain configurations the board hangs, while the following errors
are observed on the console:

  Error sending AMC RPMH requests (-110)
  qcom_rpmh TCS Busy, retrying RPMH message send: addr=0x50000
  qcom_rpmh TCS Busy, retrying RPMH message send: addr=0x50000
  qcom_rpmh TCS Busy, retrying RPMH message send: addr=0x50000
  ...

In this specific case, the above is related to one of the sequencers
being stuck, while client drivers are returning from probe and trying
to disable the currently unused clock and interconnect resources.
Generally we want to keep the multimedia NoC enabled like the rest of
the NoCs, so let's set the keepalive flag on it too.

Fixes: aae57773fb ("interconnect: qcom: sdm845: Split qnodes into their respective NoCs")
Reported-by: Amit Pundir <amit.pundir@linaro.org>
Reviewed-by: Mike Tipton <mdtipton@codeaurora.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Link: https://lore.kernel.org/r/20201012194034.26944-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
2020-10-15 09:23:25 +03:00
..
imx interconnect: imx: simplify the return expression of imx_icc_unregister 2020-09-21 11:15:02 +03:00
qcom interconnect: qcom: sdm845: Enable keepalive for the MM1 BCM 2020-10-15 09:23:25 +03:00
bulk.c interconnect: Add bulk API helpers 2020-09-08 16:28:49 +03:00
core.c interconnect: core: Simplify with dev_err_probe() 2020-09-18 09:53:57 +03:00
internal.h interconnect: Add helpers for enabling/disabling a path 2020-05-10 18:30:37 +03:00
Kconfig Merge branch 'icc-get-by-index' into icc-next 2020-05-15 10:46:18 +03:00
Makefile interconnect: Add bulk API helpers 2020-09-08 16:28:49 +03:00
trace.h interconnect: Add basic tracepoints 2019-12-16 09:25:23 +02:00