linux-kernel - [PATCH v4] dt-bindings: sram: Document qcom,kaanapali-imem and its child node

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Message-Id: <20251123-knp-soc-binding-v4-1-42b349a66c59@oss.qualcomm.com>
Date: Sun, 23 Nov 2025 23:31:54 -0800
From: Jingyi Wang <jingyi.wang@....qualcomm.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, konrad.dybcio@....qualcomm.com,
        andersson@...nel.org, dmitry.baryshkov@....qualcomm.com
Cc: aiqun.yu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jingyi Wang <jingyi.wang@....qualcomm.com>
Subject: [PATCH v4] dt-bindings: sram: Document qcom,kaanapali-imem and its
 child node

On Qualcomm Kaanapali platform, IMEM is a block of SRAM shared across
multiple IP blocks which can falk back to "mmio-sram". Documnent it and
its child node "qcom,pil-reloc-info" which is used for collecting
remoteproc ramdumps.

Signed-off-by: Jingyi Wang <jingyi.wang@....qualcomm.com>
---
Changes in v4:
- drop change that is applied
- fallback to "mmio-sram"
- Link to v3: https://lore.kernel.org/r/20251102-knp-soc-binding-v3-0-11255ec4a535@oss.qualcomm.com

Changes in v3:
- Fix capital letter in commit message - Dmitry 
- drop changes that are applied
- fallback to a no implementation binding qcom,imem - Bjorn
- Link to v2: https://lore.kernel.org/r/20251022-knp-soc-binding-v2-0-3cd3f390f3e2@oss.qualcomm.com

Changes in v2:
- Fix capital letter in subject and simplify commit message - Eugen Hristev
- pick aoss_qmp change from https://lore.kernel.org/linux-arm-msm/20250924183726.509202-1-sibi.sankar@oss.qualcomm.com/T/#m4bbee2db112a471cdca7aa63477b7147691e6852 and rebase
- Link to v1: https://lore.kernel.org/r/20250924-knp-soc-binding-v1-0-93a072e174f9@oss.qualcomm.com
---
 Documentation/devicetree/bindings/sram/sram.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/sram/sram.yaml b/Documentation/devicetree/bindings/sram/sram.yaml
index 7c1337e159f2..c451140962c8 100644
--- a/Documentation/devicetree/bindings/sram/sram.yaml
+++ b/Documentation/devicetree/bindings/sram/sram.yaml
@@ -34,6 +34,7 @@ properties:
         - nvidia,tegra186-sysram
         - nvidia,tegra194-sysram
         - nvidia,tegra234-sysram
+        - qcom,kaanapali-imem
         - qcom,rpm-msg-ram
         - rockchip,rk3288-pmu-sram
 
@@ -89,6 +90,7 @@ patternProperties:
             - arm,juno-scp-shmem
             - arm,scmi-shmem
             - arm,scp-shmem
+            - qcom,pil-reloc-info
             - renesas,smp-sram
             - rockchip,rk3066-smp-sram
             - samsung,exynos4210-sysram

---
base-commit: d724c6f85e80a23ed46b7ebc6e38b527c09d64f5
change-id: 20251123-knp-soc-binding-96e2798dcfde

Best regards,
-- 
Jingyi Wang <jingyi.wang@....qualcomm.com>