linux.git/drivers/interconnect/qcom, branch v6.2-rc2

Merge branch 'icc-sc8280xp-l3' into icc-next

2022-11-17T15:44:14+00:00

The SC8280XP currently shows depressing results in memory benchmarks.
Fix this by introducing support for the platform in the OSM (and EPSS)
L3 driver and support for the platform in the bwmon binding.

Link: https://lore.kernel.org/r/20221111032515.3460-1-quic_bjorande@quicinc.com
Signed-off-by: Georgi Djakov

interconnect: qcom: sc8180x: constify pointer to qcom_icc_node

2022-11-17T15:39:50+00:00

Pointers to struct qcom_icc_node are const.

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20221027154848.293523-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sc7180: drop double space

2022-11-17T15:39:49+00:00

Drop double white-space.

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20221027154848.293523-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sc7180: fix dropped const of qcom_icc_bcm

2022-11-17T15:39:49+00:00

Pointers to struct qcom_icc_bcm are const, but the change was dropped
during merge.

Fixes: 016fca59f95f ("Merge branch 'icc-const' into icc-next")
Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20221027154848.293523-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpm: Remove redundant dev_err call

2022-11-17T15:39:49+00:00

devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.

Signed-off-by: Shang XiaoJing 
Reviewed-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20220924015043.25130-1-shangxiaojing@huawei.com
Signed-off-by: Georgi Djakov

interconnect: qcom: osm-l3: Simplify osm_l3_set()

2022-11-14T13:05:30+00:00

The aggregation over votes for all nodes in the provider will always
only find the bandwidth votes for the destination side of the path.
Further more, the average kBps value will always be 0.

Simplify the logic by directly looking at the destination node's peak
bandwidth request.

Signed-off-by: Bjorn Andersson 
Tested-by: Steev Klimaszewski 
Reviewed-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20221111032515.3460-5-quic_bjorande@quicinc.com
Signed-off-by: Georgi Djakov

interconnect: qcom: osm-l3: Add per-core EPSS L3 support

2022-11-14T13:05:30+00:00

The EPSS instance in e.g. SM8350 and SC8280XP has per-core L3 voting
enabled. In this configuration, the "shared" vote is done using the
REG_L3_VOTE register instead of PERF_STATE.

Rename epss_l3 to clarify that it's affecting the PERF_STATE register
and add a new L3_VOTE description. Given platform lineage it's assumed
that the L3_VOTE-based case will be the predominant one, so use this for
a new generic qcom,epss-l3 compatible.

While adding the EPSS generic, also add qcom,osm-l3.

Signed-off-by: Bjorn Andersson 
Tested-by: Steev Klimaszewski 
Reviewed-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20221111032515.3460-4-quic_bjorande@quicinc.com
Signed-off-by: Georgi Djakov

interconnect: qcom: osm-l3: Squash common descriptors

2022-11-14T13:05:30+00:00

Each platform defines their own OSM L3 descriptor, but in practice
there's only two: one for OSM and one for EPSS. Remove the duplicated
definitions.

Signed-off-by: Bjorn Andersson 
Tested-by: Steev Klimaszewski 
Reviewed-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20221111032515.3460-3-quic_bjorande@quicinc.com
Signed-off-by: Georgi Djakov

interconnect: qcom: osm-l3: Use platform-independent node ids

2022-11-14T13:05:30+00:00

The identifiers used for nodes needs to be unique in the running system,
but defining them per platform results in a lot of duplicated
definitions and prevents us from using generic compatibles.

As these identifiers are not exposed outside the kernel, change to use
driver-local numbers, picked completely at random.

Signed-off-by: Bjorn Andersson 
Tested-by: Steev Klimaszewski 
Reviewed-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20221111032515.3460-2-quic_bjorande@quicinc.com
Signed-off-by: Georgi Djakov

Merge branch 'icc-ignore-return-val' into icc-next

2022-09-20T12:57:00+00:00

Today remove callbacks of platform devices return an int. This is unfortunate
because the device core ignores the return value and so the platform code only
emits a warning (and still removes the device).

The longterm quest is to make these remove callbacks return void instead.
This series is a preparation for that, with the goal to make the remove
callbacks obviously always return 0. This way when the prototype of
these functions is changed to return void, the change is straight
forward and easy to review.

Link: https://lore.kernel.org/r/20220718121409.171773-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Georgi Djakov