linux-kernel - [PATCH 00/10] Grab IPA IMEM slice through DT, part 2

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Message-Id: <20250523-topic-ipa_mem_dts-v1-0-f7aa94fac1ab@oss.qualcomm.com>
Date: Fri, 23 May 2025 01:18:15 +0200
From: Konrad Dybcio <konradybcio@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, cros-qcom-dts-watchers@...omium.org, 
 Sai Prakash Ranjan <quic_saipraka@...cinc.com>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH 00/10] Grab IPA IMEM slice through DT, part 2

The IPA IMEM slice addresses/sizes are hardcoded in the driver. That's
mucho no bueno, especially since the same versions of IPA are used
across a number of vastly different platforms, which invalidates that
approach completely.

This series wires up the IMEM slices in DT on almost all platforms
(need some more time for SDX55/65) and fills in the necessary bindings
holes.

Tested on SC7280 only, FWIW.

Patches 1-3 are good to go instantly, the rest must wait for the
bindings changes that were submitted in the series marked as a
dependency.

Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
---
Konrad Dybcio (10):
      dt-bindings: sram: qcom,imem: Add a number of missing compatibles
      arm64: dts: qcom: sdm845: Expand IMEM region
      arm64: dts: qcom: sc7180: Expand IMEM region
      arm64: dts: qcom: sc7180: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sc7280: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sdm845: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sm6350: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sm8350: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sm8550: Explicitly describe the IPA IMEM slice
      arm64: dts: qcom: sm8650: Explicitly describe the IPA IMEM slice

 Documentation/devicetree/bindings/sram/qcom,imem.yaml | 13 +++++++++++++
 arch/arm64/boot/dts/qcom/sc7180.dtsi                  | 16 +++++++++++-----
 arch/arm64/boot/dts/qcom/sc7280.dtsi                  |  6 ++++++
 arch/arm64/boot/dts/qcom/sdm845.dtsi                  | 16 +++++++++++-----
 arch/arm64/boot/dts/qcom/sm6350.dtsi                  | 16 ++++++++++++++++
 arch/arm64/boot/dts/qcom/sm8350.dtsi                  | 16 ++++++++++++++++
 arch/arm64/boot/dts/qcom/sm8550.dtsi                  | 16 ++++++++++++++++
 arch/arm64/boot/dts/qcom/sm8650.dtsi                  | 16 ++++++++++++++++
 8 files changed, 105 insertions(+), 10 deletions(-)
---
base-commit: 6add743d2854d744c3037235b87c1c9d164fd132
change-id: 20250523-topic-ipa_mem_dts-58f5d73a1f21
prerequisite-message-id: <20250523-topic-ipa_imem-v1-0-b5d536291c7f@....qualcomm.com>
prerequisite-patch-id: f6aa0c354d434ec11dd88b93528c05cb3a45bb07
prerequisite-patch-id: 89f72ef0c3d3f29753b0cb9e290a4036ba380cc1
prerequisite-patch-id: 330c94ac7c2b42dd86c5f763b133f0d2598fda40

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@....qualcomm.com>