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To ensure the interconnect votes are actually meaningful and in order to
prevent holding all buses at FMAX, introduce the sync state callback.
Fixes: e6f0d6a30f73 ("interconnect: qcom: Add SM8550 interconnect provider driver")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20231218-topic-8550_fixes-v1-2-ce1272d77540@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().
Several drivers use qcom_icc_rpmh_remove() as remove callback which
returns zero unconditionally. Make it return void and use .remove_new in
the drivers. There is no change in behaviour.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231015135955.1537751-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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The fixes that got merged into v6.5-rc6 are needed here.
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714174638.4058268-1-robh@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Set the proper enable_mask to nodes requiring such value
to be used instead of a bandwidth when voting.
The masks were copied from the downstream implementation at [1].
[1] https://git.codelinaro.org/clo/la/kernel/msm-5.15/-/blob/kernel.lnx.5.15.r1-rel/drivers/interconnect/qcom/kalama.c
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230619-topic-sm8550-upstream-interconnect-mask-vote-v2-3-709474b151cc@linaro.org
Fixes: e6f0d6a30f73 ("interconnect: qcom: Add SM8550 interconnect provider driver")
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Change sm8550 interconnect driver to use generic qcom_icc_rpmh_*
functions rather than embedding a copy of thema. This also fixes an
overallocation of memory for icc_onecell_data structure.
Fixes: e6f0d6a30f73 ("interconnect: qcom: Add SM8550 interconnect provider driver")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230105002221.1416479-4-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Add driver for the Qualcomm interconnect buses found in SM8550 based
platforms. The topology consists of several NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20221202232054.2666830-3-abel.vesa@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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