linux-stable.git/drivers/interconnect, branch linux-6.15.y

interconnect: qcom: sc8180x: specify num_nodes

2025-08-15T10:16:22+00:00

[ Upstream commit 7e0b59496a02d25828612721e846ea4b717a97b9 ]

Specify .num_nodes for several BCMs which missed this declaration.

Fixes: 04548d4e2798 ("interconnect: qcom: sc8180x: Reformat node and bcm definitions")
Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20250704-rework-icc-v2-2-875fac996ef5@oss.qualcomm.com
Signed-off-by: Georgi Djakov 
Signed-off-by: Sasha Levin

interconnect: qcom: sc8280xp: specify num_links for qnm_a1noc_cfg

2025-08-15T10:16:22+00:00

[ Upstream commit 02ee375506dceb7d32007821a2bff31504d64b99 ]

The qnm_a1noc_cfg declaration didn't include .num_links definition, fix
it.

Fixes: f29dabda7917 ("interconnect: qcom: Add SC8280XP interconnect provider")
Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20250704-rework-icc-v2-1-875fac996ef5@oss.qualcomm.com
Signed-off-by: Georgi Djakov 
Signed-off-by: Sasha Levin

interconnect: icc-clk: destroy nodes in case of memory allocation failures

2025-08-01T08:51:23+00:00

[ Upstream commit 618c810a7b2163517ab1875bd56b633ca3cb3328 ]

When memory allocation fails during creating the name of the nodes in
icc_clk_register(), the code continues on the error path and it calls
icc_nodes_remove() to destroy the already created nodes. However that
function only destroys the nodes which were already added to the provider
and the newly created nodes are never destroyed in case of error.

In order to avoid a memory leaks, change the code to destroy the newly
created nodes explicitly in case of memory allocation failures.

Fixes: 44c5aa73ccd1 ("interconnect: icc-clk: check return values of devm_kasprintf()")
Signed-off-by: Gabor Juhos 
Reviewed-by: Bartosz Golaszewski 
Link: https://lore.kernel.org/r/20250625-icc-clk-memleak-fix-v1-1-4151484cd24f@gmail.com
Signed-off-by: Georgi Djakov 
Signed-off-by: Sasha Levin

interconnect: qcom: sc7280: Add missing num_links to xm_pcie3_1 node

2025-08-01T08:51:23+00:00

[ Upstream commit 886a94f008dd1a1702ee66dd035c266f70fd9e90 ]

This allows adding interconnect paths for PCIe 1 in device tree later.

Fixes: 46bdcac533cc ("interconnect: qcom: Add SC7280 interconnect provider driver")
Signed-off-by: Xilin Wu 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20250613-sc7280-icc-pcie1-fix-v1-1-0b09813e3b09@radxa.com
Signed-off-by: Georgi Djakov 
Signed-off-by: Sasha Levin

Merge tag 'icc-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc into char-misc-next

2025-01-16T13:01:40+00:00

Pull interconnect changes from Georgi:

interconnect changes for 6.14

This pull request contains the interconnect changes for the 6.14-rc1 merge
window. It contains one new driver and DT documentation updates for L3
and bandwidth monitors.

Driver changes:
- New driver for the SM8750 platform
- Add DT compatibles for QCS615 BWMON and SM8650 OSM

Signed-off-by: Georgi Djakov 

* tag 'icc-6.14-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/djakov/icc:
  dt-bindings: interconnect: qcom,msm8998-bwmon: Add SM8750 CPU BWMONs
  dt-bindings: interconnect: OSM L3: Document sm8650 OSM L3 compatible
  dt-bindings: interconnect: qcom-bwmon: Document QCS615 bwmon compatibles
  interconnect: sm8750: Add missing const to static qcom_icc_desc
  interconnect: qcom: Add interconnect provider driver for SM8750
  dt-bindings: interconnect: add interconnect bindings for SM8750

interconnect: sm8750: Add missing const to static qcom_icc_desc

2025-01-13T17:59:09+00:00

The statically allocated 'struct qcom_icc_desc' is not modified by the
driver and like all other instances should be const.

Signed-off-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20250109164630.175093-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add interconnect provider driver for SM8750

2024-12-17T12:05:50+00:00

Introduce SM8750 interconnect provider driver using the interconnect
framework.

Signed-off-by: Raviteja Laggyshetty 
Signed-off-by: Melody Olvera 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20241204-sm8750_master_interconnects-v3-2-3d9aad4200e9@quicinc.com
Signed-off-by: Georgi Djakov

interconnect: icc-clk: check return values of devm_kasprintf()

2024-12-17T12:03:34+00:00

devm_kasprintf() can fail and return NULL, add missing return value
checks.

Fixes: 0ac2a08f42ce ("interconnect: add clk-based icc provider support")
Signed-off-by: Bartosz Golaszewski 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20241202165723.17292-1-brgl@bgdev.pl
Signed-off-by: Georgi Djakov

interconnect: qcom: icc-rpm: Set the count member before accessing the flex array

2024-12-17T12:03:02+00:00

The following UBSAN error is reported during boot on the db410c board on
a clang-19 build:

Internal error: UBSAN: array index out of bounds: 00000000f2005512 [#1] PREEMPT SMP
...
pc : qnoc_probe+0x5f8/0x5fc
...

The cause of the error is that the counter member was not set before
accessing the annotated flexible array member, but after that. Fix this
by initializing it earlier.

Reported-by: Linux Kernel Functional Testing 
Closes: https://lore.kernel.org/r/CA+G9fYs+2mBz1y2dAzxkj9-oiBJ2Acm1Sf1h2YQ3VmBqj_VX2g@mail.gmail.com
Fixes: dd4904f3b924 ("interconnect: qcom: Annotate struct icc_onecell_data with __counted_by")
Reviewed-by: Nathan Chancellor 
Link: https://lore.kernel.org/r/20241203223334.233404-1-djakov@kernel.org
Signed-off-by: Georgi Djakov

Merge branch 'icc-sar2130p' into icc-next

2024-11-04T23:32:05+00:00

Add driver for the network of connects present on the SAR2130P platform.

* icc-sar2130p
  dt-bindings: interconnect: qcom: document SAR2130P NoC
  interconnect: qcom: add support for SAR2130P

Link: https://lore.kernel.org/r/20241018-sar2130p-icc-v2-0-c58c73dcd19d@linaro.org
Signed-off-by: Georgi Djakov