linux.git/drivers/interconnect/qcom, branch v5.10-rc2

interconnect: qcom: use icc_sync state for sm8[12]50

2020-10-27T14:01:22+00:00

In addition to the rest of Qcom interconnect drivers use icc_sync_state
for SM8150/SM8250 interconnect drivers to notify the interconnect
framework when all consumers are probed and there is no need to keep the
bandwidth set to maximum anymore.

Also move the BCM initialization before creating the nodes to set the
max bandwidth in hardware for the initialization/probing stage.

Signed-off-by: Dmitry Baryshkov 
Fixes: 7d3b0b0d8184 ("interconnect: qcom: Use icc_sync_state")
Link: https://lore.kernel.org/r/20201027133418.976687-1-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Ensure that the floor bandwidth value is enforced

2020-10-22T10:26:26+00:00

Take into account the initial bandwidth from the framework and update
the internal sum and max values before committing if needed. This will
ensure that the floor bandwidth values are enforced until the providers
get into sync state.

Fixes: 7d3b0b0d8184 ("interconnect: qcom: Use icc_sync_state")
Tested-by: Akash Asthana 
Link: https://lore.kernel.org/r/20201021155938.9223-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sc7180: Init BCMs before creating the nodes

2020-10-15T06:24:00+00:00

Currently if we use sync_state, by default the bandwidth is maxed out,
but in order to set this in hardware, the BCMs (Bus Clock Managers) need
to be initialized first. Move the BCM initialization before creating the
nodes to fix this.

Fixes: 7d3b0b0d8184 ("interconnect: qcom: Use icc_sync_state")
Acked-by: Saravana Kannan 
Link: https://lore.kernel.org/r/20201013135913.29059-3-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sdm845: Init BCMs before creating the nodes

2020-10-15T06:24:00+00:00

Currently if we use sync_state, by default the bandwidth is maxed out,
but in order to set this in hardware, the BCMs (Bus Clock Managers) need
to be initialized first. Move the BCM initialization before creating the
nodes to fix this.

Fixes: 7d3b0b0d8184 ("interconnect: qcom: Use icc_sync_state")
Acked-by: Saravana Kannan 
Link: https://lore.kernel.org/r/20201013135913.29059-2-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sdm845: Enable keepalive for the MM1 BCM

2020-10-15T06:23:25+00:00

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: aae57773fbe0 ("interconnect: qcom: sdm845: Split qnodes into their respective NoCs")
Reported-by: Amit Pundir 
Reviewed-by: Mike Tipton 
Tested-by: John Stultz 
Link: https://lore.kernel.org/r/20201012194034.26944-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov

Merge branch 'icc-syncstate' into icc-next

2020-09-18T06:13:40+00:00

* icc-syncstate:
  interconnect: Add get_bw() callback
  interconnect: Add sync state support
  interconnect: qcom: Use icc_sync_state

Signed-off-by: Georgi Djakov

interconnect: qcom: Use icc_sync_state

2020-09-18T05:57:18+00:00

Lowering the bandwidth on the bus might have negative consequences if
it's done before all consumers had a chance to cast their vote. Now by
default the framework sets the bandwidth to maximum during boot. We need
to use the icc_sync_state callback to notify the framework when all
consumers are probed and there is no need to keep the bandwidth set to
maximum anymore.

Link: https://lore.kernel.org/r/20200825170152.6434-4-georgi.djakov@linaro.org
Reviewed-by: Saravana Kannan 
Signed-off-by: Georgi Djakov

interconnect: qcom: osm-l3: Mark more structures const

2020-09-15T06:10:21+00:00

These structures aren't modified at runtime. Mark them const so they get
moved to read-only memory. We have to cast away const in one place when
we store into the data member of struct icc_node. This is paired with a
re-const of the data member when it is extracted in qcom_icc_set().

Signed-off-by: Stephen Boyd 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200914182112.513981-1-swboyd@chromium.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add EPSS L3 support on SM8250

2020-09-08T13:29:01+00:00

Add Epoch Subsystem (EPSS) L3 interconnect provider support on
SM8250 SoCs.

Signed-off-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20200801123049.32398-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Lay the groundwork for adding EPSS support

2020-09-08T13:29:01+00:00

Lay the groundwork for adding Epoch Subsystem (EPSS) L3 support on
SM8250.

Signed-off-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20200801123049.32398-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov