linux-kernel - [PATCH v2 0/2] interconnect: qcom: sdx75: Drop QP0 interconnect and BCM nodes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250926-sdx75-icc-v2-0-20d6820e455c@oss.qualcomm.com>
Date: Fri, 26 Sep 2025 12:12:08 +0530
From: Manivannan Sadhasivam via B4 Relay <devnull+manivannan.sadhasivam.oss.qualcomm.com@...nel.org>
To: Georgi Djakov <djakov@...nel.org>, 
 Rohit Agarwal <quic_rohiagar@...cinc.com>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
 devicetree@...r.kernel.org, Manivannan Sadhasivam <mani@...nel.org>, 
 Raviteja Laggyshetty <quic_rlaggysh@...cinc.com>, 
 Lakshmi Sowjanya D <quic_laksd@...cinc.com>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>, 
 stable@...r.kernel.org
Subject: [PATCH v2 0/2] interconnect: qcom: sdx75: Drop QP0 interconnect
 and BCM nodes

Hi,

This series drops 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.

Cc: linux-arm-msm@...r.kernel.org
Cc: linux-pm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: devicetree@...r.kernel.org
Cc: Manivannan Sadhasivam <mani@...nel.org>
Cc: Raviteja Laggyshetty <quic_rlaggysh@...cinc.com>
Cc: Lakshmi Sowjanya D <quic_laksd@...cinc.com>
To: Georgi Djakov <djakov@...nel.org>
To: Konrad Dybcio <konradybcio@...nel.org>
To: Rob Herring <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>
To: Conor Dooley <conor+dt@...nel.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>

Changes in v2:

- Taken over the series from Raviteja
- Reordered the patches to avoid breaking build
- Improved the patch descriptions and kept the values for other defines
  unchanged

---
Raviteja Laggyshetty (2):
      interconnect: qcom: sdx75: Drop QPIC interconnect and BCM nodes
      dt-bindings: interconnect: qcom: Drop QPIC_CORE IDs

 drivers/interconnect/qcom/sdx75.c             | 26 --------------------------
 drivers/interconnect/qcom/sdx75.h             |  2 --
 include/dt-bindings/interconnect/qcom,sdx75.h |  2 --
 3 files changed, 30 deletions(-)
---
base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585
change-id: 20250926-sdx75-icc-67c20b3de84a

Best regards,
-- 
Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>