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2026-02-27interconnect: qcom: qcs8300: fix the num_links for nsp icc nodeRaviteja Laggyshetty1-1/+1
[ Upstream commit 3dc4092fe5c8baf6bf4e882b44615f19564a5076 ] The qxm_nsp node is configured with an incorrect num_links value, causing remoteproc driver to fail probing because it cannot acquire the interconnect path for qxm_nsp -> ebi. This results in the following error in dmesg: platform 26300000.remoteproc: deferred probe pending: qcom_q6v5_pas: failed to acquire interconnect path Set num_links to 2 to match the two link_nodes, allowing remoteproc clients to obtain the correct path handle and vote on qxm_nsp -> ebi. Fixes: 874be3339c85 ("interconnect: qcom: qcs8300: convert to dynamic IDs") Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20260120-monaco_num_links_fix_nsp_ebi_path-v3-1-536be21ce3ff@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-27interconnect: mediatek: Aggregate bandwidth with saturating addNicolas Frattaroli1-1/+4
[ Upstream commit 6ffd02b82243d9907b5f5d2c7a2fc6a62669eece ] By using a regular non-overflow-checking add, the MediaTek icc-emi driver will happy wrap at U32_MAX + 1 to 0. As it's common for the interconnect core to fill in INT_MAX values, this is not a hypothetical situation, but something that actually happens in regular use. This would be pretty disasterous if anything used this driver. Replace the addition with an overflow-checked addition from overflow.h, and saturate to U32_MAX if an overflow is detected. Fixes: b45293799f75 ("interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Link: https://lore.kernel.org/r/20251124-mt8196-dvfsrc-v2-13-d9c1334db9f3@collabora.com Signed-off-by: Georgi Djakov <djakov@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-02-27interconnect: mediatek: Don't hijack parent deviceNicolas Frattaroli1-2/+2
[ Upstream commit 510f8214440c553e81774c5822437ccf154e9e38 ] If the intention is that users of the interconnect declare their relationship to the child icc_emi node of the dvfsrc controller, then this code never worked. That's because it uses the parent dvfsrc device as the device it passes to the interconnect core framework, which means all the OF parsing is broken. Use the actual device instead, and pass the dvfsrc parent into the dvfsrc calls. Fixes: b45293799f75 ("interconnect: mediatek: Add MediaTek MT8183/8195 EMI Interconnect driver") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com> Link: https://lore.kernel.org/r/20251124-mt8196-dvfsrc-v2-12-d9c1334db9f3@collabora.com Signed-off-by: Georgi Djakov <djakov@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-01-12interconnect: debugfs: initialize src_node and dst_node to empty stringsGeorgi Djakov1-0/+5
The debugfs_create_str() API assumes that the string pointer is either NULL or points to valid kmalloc() memory. Leaving the pointer uninitialized can cause problems. Initialize src_node and dst_node to empty strings before creating the debugfs entries to guarantee that reads and writes are safe. Fixes: 770c69f037c1 ("interconnect: Add debugfs test client") Signed-off-by: Georgi Djakov <djakov@kernel.org> Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com> Tested-by: Kuan-Wei Chiu <visitorckw@gmail.com> Link: https://lore.kernel.org/r/20260109122523.125843-1-djakov@kernel.org Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-19interconnect: qcom: sm6350: enable QoS configurationLuca Weiss1-0/+288
Enable QoS configuration for master ports with predefined values for priority and urgency forwarding. While this does require some "clocks" to be specified in devicetree to work correctly, thanks to ".qos_requires_clocks = true," this is backwards compatible with old DT as QoS programming will be skipped for aggre1_noc and aggre2_noc when clocks are not provided. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-4-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-19interconnect: qcom: sm6350: Remove empty BCM arraysLuca Weiss1-10/+0
Clean up the code by removing empty BCM arrays to save some lines. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-3-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-19interconnect: qcom: icc-rpmh: Get parent's regmap for nested NoCsLuca Weiss1-8/+13
Since commit 57eb14779dfd ("interconnect: qcom: icc-rpmh: Support child NoC device probe") the icc-rpmh driver supports initializing child NoCs, but those child NoCs also need to be able to get the parent's regmap in order to enable QoS. Change the driver to support that and support programming QoS register. Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251114-sm6350-icc-qos-v2-2-6af348cb9c69@fairphone.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-19Merge branch 'icc-dynamic-ids' into icc-nextGeorgi Djakov50-10813/+6715
Currently most of Qualcomm interconnect drivers use static IDs, which poses a threat of possible conflicts with other drivers. Rework RPMh interconnect drivers to use dynamic IDs and drop static IDs code. * icc-dynamic-ids interconnect: qcom: icc-rpmh: convert link_nodes to dynamic array interconnect: qcom: sc7280: convert to dynamic IDs interconnect: qcom: sc8180x: convert to dynamic IDs interconnect: qcom: sc8280xp: convert to dynamic IDs interconnect: qcom: sdm845: convert to dynamic IDs interconnect: qcom: sm8250: convert to dynamic IDs interconnect: qcom: x1e80100: convert to dynamic IDs interconnect: qcom: qcs615: convert to dynamic IDs interconnect: qcom: qcs8300: convert to dynamic IDs interconnect: qcom: qdu1000: convert to dynamic IDs interconnect: qcom: sar2130p: convert to dynamic IDs interconnect: qcom: sc7180: convert to dynamic IDs interconnect: qcom: sdm670: convert to dynamic IDs interconnect: qcom: sdx55: convert to dynamic IDs interconnect: qcom: sdx65: convert to dynamic IDs interconnect: qcom: sdx75: convert to dynamic IDs interconnect: qcom: sm6350: convert to dynamic IDs interconnect: qcom: sm7150: convert to dynamic IDs interconnect: qcom: sm8150: convert to dynamic IDs interconnect: qcom: sm8350: convert to dynamic IDs interconnect: qcom: sm8450: convert to dynamic IDs interconnect: qcom: sm8550: convert to dynamic IDs interconnect: qcom: sm8650: convert to dynamic IDs interconnect: qcom: sm8750: convert to dynamic IDs interconnect: qcom: icc-rpmh: drop support for non-dynamic IDS Link: https://lore.kernel.org/r/20251031-rework-icc-v3-0-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-19Merge branch 'icc-kaanapali' into icc-nextGeorgi Djakov3-0/+1879
Add interconnect dt-bindings and driver support for Qualcomm Kaanapali SoC. * icc-kaanapali dt-bindings: interconnect: document the RPMh Network-On-Chip interconnect in Kaanapali SoC interconnect: qcom: add Kaanapali interconnect provider driver dt-bindings: interconnect: qcom-bwmon: Document Kaanapali BWMONs Link: https://lore.kernel.org/r/20251031-knp-interconnect-v4-0-568bba2cb3e5@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: icc-rpmh: drop support for non-dynamic IDSDmitry Baryshkov27-286/+5
Now as all RPMh interconnect drivers were converted to using the dynamic IDs, drop support for non-dynamic ID allocation. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-25-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8750: convert to dynamic IDsDmitry Baryshkov1-386/+230
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-24-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8650: convert to dynamic IDsDmitry Baryshkov2-438/+247
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on QRD8650 Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-23-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8550: convert to dynamic IDsDmitry Baryshkov2-416/+237
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on QRD8550 Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-22-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8450: convert to dynamic IDsDmitry Baryshkov2-501/+280
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-21-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8350: convert to dynamic IDsDmitry Baryshkov2-507/+345
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-20-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8150: convert to dynamic IDsDmitry Baryshkov2-513/+355
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-19-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm7150: convert to dynamic IDsDmitry Baryshkov2-474/+329
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-18-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm6350: convert to dynamic IDsDmitry Baryshkov2-461/+317
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-17-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sdx75: convert to dynamic IDsDmitry Baryshkov2-307/+174
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-16-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sdx65: convert to dynamic IDsDmitry Baryshkov2-299/+226
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-15-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sdx55: convert to dynamic IDsDmitry Baryshkov2-320/+242
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-14-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sdm670: convert to dynamic IDsDmitry Baryshkov2-396/+262
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-13-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sc7180: convert to dynamic IDsDmitry Baryshkov2-495/+344
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-12-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sar2130p: convert to dynamic IDsDmitry Baryshkov1-401/+238
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-11-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: qdu1000: convert to dynamic IDsDmitry Baryshkov2-292/+155
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-10-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: qcs8300: convert to dynamic IDsDmitry Baryshkov2-556/+305
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-9-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: qcs615: convert to dynamic IDsDmitry Baryshkov2-408/+239
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-8-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: x1e80100: convert to dynamic IDsDmitry Baryshkov2-529/+292
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-7-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sm8250: convert to dynamic IDsDmitry Baryshkov2-543/+361
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-6-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sdm845: convert to dynamic IDsDmitry Baryshkov2-533/+381
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-5-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sc8280xp: convert to dynamic IDsDmitry Baryshkov2-630/+416
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-4-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sc8180x: convert to dynamic IDsDmitry Baryshkov2-503/+335
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-3-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: sc7280: convert to dynamic IDsDmitry Baryshkov2-496/+287
Stop using fixed and IDs and covert the platform to use dynamic IDs for the interconnect. This gives more flexibility and also allows us to drop the .num_links member, saving from possible errors related to it being not set or set incorrectly. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-2-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-11-03interconnect: qcom: icc-rpmh: convert link_nodes to dynamic arrayDmitry Baryshkov4-261/+261
Declaring link_nodes as a double-pointer results in a syntax sugar in the interconnect driver to typecast the array. Change the type of link_nodes field to the array to remove the need for the extra typecast. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-rework-icc-v3-1-0575304c9624@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31interconnect: qcom: add Kaanapali interconnect provider driverRaviteja Laggyshetty3-0/+1879
Add driver for the Qualcomm interconnect buses found in Kaanapali 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. Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251031-knp-interconnect-v4-2-568bba2cb3e5@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31Merge branch 'icc-sa8775p' into icc-nextGeorgi Djakov1-0/+439
This enables QoS configuration for QNOC type device which can be found on SA8775P platform. It enables QoS configuration for master ports with predefined priority and urgency forwarding. This helps in prioritizing the traffic originating from different interconnect masters at NOC. The system may function normally without this feature. However, enabling QoS helps optimize latency and bandwidth across subsystems like CPU, GPU, and multimedia engines, which becomes important in high-throughput scenarios. This is a feature aimed at performance enhancement to improve system performance under concurrent workloads. * icc-sa8775p dt-bindings: interconnect: add reg and clocks properties to enable QoS on sa8775p interconnect: qcom: sa8775p: enable QoS configuration Link: https://lore.kernel.org/r/20251001073344.6599-1-odelu.kukatla@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31Merge branch 'icc-sdx75' into icc-nextGeorgi Djakov2-28/+0
Drop the QPIC interconnect and BCM nodes for the SDX75 SoC. The reason is that this QPIC BCM resource is already defined as a RPMh clock in clk-rpmh driver as like other SDX SoCs. So it is wrong to describe the same resource in two different providers. Also, without this series, the NAND driver fails to probe on SDX75 as the interconnect sync state disables the QPIC nodes as there were no clients voting for this ICC resource. However, the NAND driver had already voted for this BCM resource through the clk-rpmh driver. Since both votes come from Linux, RPMh was unable to distinguish between these two and ends up disabling the resource during sync state. * icc-sdx75 interconnect: qcom: sdx75: Drop QPIC interconnect and BCM nodes dt-bindings: interconnect: qcom: Drop QPIC_CORE IDs Link: https://lore.kernel.org/r/20250926-sdx75-icc-v2-0-20d6820e455c@oss.qualcomm.com> Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31Merge branch 'icc-msm8996' into icc-nextGeorgi Djakov1-0/+1
The lack of the interconnects for the USB2 host might result in the register writes for the PHY not reaching the PHY and thus the PLL not locking up, resulting in -EBUSY errors for the USB host on the platform. Add missing interconnect link and add interconnect paths to the USB2 device. * icc-msm8996 interconnect: qcom: msm8996: add missing link to SLAVE_USB_HS arm64: dts: qcom: msm8996: add interconnect paths to USB2 controller Link: https://lore.kernel.org/r/20251002-fix-msm8996-icc-v1-0-a36a05d1f869@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31interconnect: debugfs: Fix incorrect error handling for NULL pathKuan-Wei Chiu1-1/+6
The icc_commit_set() function, used by the debugfs interface, checks the validity of the global cur_path pointer using IS_ERR_OR_NULL(). However, in the specific case where cur_path is NULL, while IS_ERR_OR_NULL(NULL) correctly evaluates to true, the subsequent call to PTR_ERR(NULL) returns 0. This causes the function to return a success code (0) instead of an error, misleading the user into believing their bandwidth request was successfully committed when, in fact, no operation was performed. Fix this by adding an explicit check to return -EINVAL if cur_path is NULL. This prevents silent failures and ensures that an invalid operational sequence is immediately and clearly reported as an error. Fixes: 770c69f037c1 ("interconnect: Add debugfs test client") Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com> Link: https://lore.kernel.org/r/20251010151447.2289779-1-visitorckw@gmail.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31interconnect: qcom: sdx75: Drop QPIC interconnect and BCM nodesRaviteja Laggyshetty2-28/+0
As like other SDX SoCs, SDX75 SoC's QPIC BCM resource was modeled as a RPMh clock in clk-rpmh driver. However, for SDX75, this resource was also described as an interconnect and BCM node mistakenly. It is incorrect to describe the same resource in two different providers, as it will lead to votes from clients overriding each other. Hence, drop the QPIC interconnect and BCM nodes and let the clients use clk-rpmh driver to vote for this resource. Without this change, the NAND driver fails to probe on SDX75, as the interconnect sync state disables the QPIC nodes as there were no clients voting for this ICC resource. However, the NAND driver had already voted for this BCM resource through the clk-rpmh driver. Since both votes come from Linux, RPMh was unable to distinguish between these two and ends up disabling the QPIC resource during sync state. Cc: stable@vger.kernel.org Fixes: 3642b4e5cbfe ("interconnect: qcom: Add SDX75 interconnect provider driver") Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@quicinc.com> [mani: dropped the reference to bcm_qp0, reworded description] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Tested-by: Lakshmi Sowjanya D <quic_laksd@quicinc.com> # on SDX75 Link: https://lore.kernel.org/r/20250926-sdx75-icc-v2-1-20d6820e455c@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31interconnect: qcom: sa8775p: enable QoS configurationOdelu Kukatla1-0/+439
Enable QoS configuration for master ports with predefinedi priority and urgency forwarding. Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251001073344.6599-3-odelu.kukatla@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-10-31interconnect: qcom: msm8996: add missing link to SLAVE_USB_HSDmitry Baryshkov1-0/+1
>From the initial submission the interconnect driver missed the link from SNOC_PNOC to the USB 2 configuration space. Add missing link in order to let the platform configure and utilize this path. Fixes: 7add937f5222 ("interconnect: qcom: Add MSM8996 interconnect provider driver") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Link: https://lore.kernel.org/r/20251002-fix-msm8996-icc-v1-1-a36a05d1f869@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-09-12Merge branch 'icc-glymur' into icc-nextGeorgi Djakov4-1/+2555
Add interconnect dt-bindings and driver support for Qualcomm's next gen compute SoC - Glymur. * icc-glymur dt-bindings: interconnect: document the RPMh Network-On-Chip interconnect in Glymur SoC interconnect: qcom: icc-rpmh: increase MAX_PORTS to support four QoS ports interconnect: qcom: add glymur interconnect provider driver Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-0-596cca6b6015@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-09-12interconnect: core: Use device_match_of_node()Zhang Enpei1-1/+1
Make use of device_match_of_node() instead of open coding its functionality. Signed-off-by: Zhang Enpei <zhang.enpei@zte.com.cn> Link: https://lore.kernel.org/r/20250807141833927wb2idY1sZi1OpUKkrXk44@zte.com.cn Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-08-18interconnect: qcom: add glymur interconnect provider driverRaviteja Laggyshetty3-0/+2554
Add driver for the Qualcomm interconnect buses found in glymur 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. Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-3-596cca6b6015@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-08-18interconnect: qcom: icc-rpmh: increase MAX_PORTS to support four QoS portsRaviteja Laggyshetty1-1/+1
Update the MAX_PORTS value to 4 to program four QoS ports available on the Glymur SoC's interconnect master node. Co-developed-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Signed-off-by: Odelu Kukatla <odelu.kukatla@oss.qualcomm.com> Signed-off-by: Raviteja Laggyshetty <raviteja.laggyshetty@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250814-glymur-icc-v2-2-596cca6b6015@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-07-29Merge tag 'char-misc-6.17-rc1' of ↵Linus Torvalds6-42/+1949
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc / IIO / other driver updates from Greg KH: "Here is the big set of char/misc/iio and other smaller driver subsystems for 6.17-rc1. It's a big set this time around, with the huge majority being in the iio subsystem with new drivers and dts files being added there. Highlights include: - IIO driver updates, additions, and changes making more code const and cleaning up some init logic - bus_type constant conversion changes - misc device test functions added - rust miscdevice minor fixup - unused function removals for some drivers - mei driver updates - mhi driver updates - interconnect driver updates - Android binder updates and test infrastructure added - small cdx driver updates - small comedi fixes - small nvmem driver updates - small pps driver updates - some acrn virt driver fixes for printk messages - other small driver updates All of these have been in linux-next with no reported issues" * tag 'char-misc-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (292 commits) binder: Use seq_buf in binder_alloc kunit tests binder: Add copyright notice to new kunit files misc: ti_fpc202: Switch to of_fwnode_handle() bus: moxtet: Use dev_fwnode() pc104: move PC104 option to drivers/Kconfig drivers: virt: acrn: Don't use %pK through printk comedi: fix race between polling and detaching interconnect: qcom: Add Milos interconnect provider driver dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC mei: more prints with client prefix mei: bus: use cldev in prints bus: mhi: host: pci_generic: Add Telit FN990B40 modem support bus: mhi: host: Detect events pointing to unexpected TREs bus: mhi: host: pci_generic: Add Foxconn T99W696 modem bus: mhi: host: Use str_true_false() helper bus: mhi: host: pci_generic: Add support for EM929x and set MRU to 32768 for better performance. bus: mhi: host: Fix endianness of BHI vector table bus: mhi: host: pci_generic: Disable runtime PM for QDU100 bus: mhi: host: pci_generic: Fix the modem name of Foxconn T99W640 dt-bindings: interconnect: qcom,msm8998-bwmon: Allow 'nonposted-mmio' ...
2025-07-22Merge branch 'icc-milos' into icc-nextGeorgi Djakov3-0/+1942
Add documentation and driver for the interconnect on the Milos SoC. * icc-milos dt-bindings: interconnect: document the RPMh Network-On-Chip Interconnect in Qualcomm Milos SoC interconnect: qcom: Add Milos interconnect provider driver Link: https://lore.kernel.org/r/20250709-sm7635-icc-v3-0-c446203c3b3a@fairphone.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-07-22interconnect: qcom: Add Milos interconnect provider driverLuca Weiss3-0/+1942
Add driver for the Qualcomm interconnect buses found in Milos 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: Luca Weiss <luca.weiss@fairphone.com> Link: https://lore.kernel.org/r/20250709-sm7635-icc-v3-2-c446203c3b3a@fairphone.com [georgi: remove null termination of nodes and links] Signed-off-by: Georgi Djakov <djakov@kernel.org>
2025-07-18interconnect: qcom: qcs615: Drop IP0 interconnectsKonrad Dybcio1-42/+0
In the same spirit as e.g. Commit b136d257ee0b ("interconnect: qcom: sc8280xp: Drop IP0 interconnects"), drop the resources that should be taken care of through the clk-rpmh driver. Fixes: 77d79677b04b ("interconnect: qcom: add QCS615 interconnect provider driver") Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250627-topic-qcs615_icc_ipa-v1-2-dc47596cde69@oss.qualcomm.com Signed-off-by: Georgi Djakov <djakov@kernel.org>
generated by cgit v1.2.3 (git 2.39.0) at 2026-03-29 04:09:45 +0300