It's fashion to use the icc_sync_state callback to notify the framework
when all consumers are probed, so that the bandwidth request doesn't
need to stay on maximum value.
Do the same thing for msm8939 driver.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Link: https://lore.kernel.org/r/20220416012634.479617-1-leo.yan@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Pointers to struct qcom_icc_node (and similar structures) are not
modified, so they can be made const for safety. The contents of struct
qcom_icc_node must stay non-const.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220412102623.227607-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Booting tip-of-tree on msm8939 we find the following error caused by our
modelling of snoc and snoc_mm as peer devices with the same address space.
[ 1.212340] qnoc-msm8939 580000.interconnect_mm: can't request region for resource [mem 0x00580000-0x0059407f]
[ 1.212391] qnoc-msm8939 580000.interconnect_mm: Cannot ioremap interconnect bus resource
[ 1.221524] qnoc-msm8939: probe of 580000.interconnect_mm failed with error -16
Declaring snoc_mm as a child device of snoc mitigates the fault and is
consistent with a similar extant implementation in qcm2290.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20220129032735.2410936-3-bryan.odonoghue@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Port support for AP-owned nodes from the downstream device tree.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210903232421.1384199-10-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
In preparation to adding AP-owned nodes support to msm8939 expand
DEFINE_QNODE macros in the driver.
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210903232421.1384199-9-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
All icc-rpm drivers use the same set of bus clocks. Move handling of bus
clocks to qnoc_probe. This both simplifies the code and allows using
qnoc_probe as device's probe function.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210903232421.1384199-2-dmitry.baryshkov@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Some nodes are incorrectly marked as RPM-controlled (they have RPM
master and slave ids assigned), but are actually controlled by the
application CPU instead. The RPM complains when we send requests for
resources that it can't control. Let's fix this by replacing the IDs,
with the default "-1" in which case no requests are sent.
See commit c497f9322a ("interconnect: qcom: msm8916: Remove rpm-ids
from non-RPM nodes") where this was done for msm8916.
Signed-off-by: Benjamin Li <benl@squareup.com>
Reviewed-by: Jun Nie <jun.nie@linaro.org>
Link: https://lore.kernel.org/r/20210205015205.22947-3-benl@squareup.com
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Add driver for the Qualcomm interconnect buses found in MSM8939 based
platforms. The topology consists of four NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Link: https://lore.kernel.org/r/20201204075345.5161-6-jun.nie@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
