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authorKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>2022-09-28 17:25:01 +0200
committerBjorn Andersson <andersson@kernel.org>2022-10-17 22:01:46 -0500
commit5aa332c5e7ca2469c9ff55cf294eddb33a2c8e4b (patch)
treeb16c9f8a03c080f690def269e78ac249b0a98a69
parent6414b1177e2e4f229b7807009f17ccf9491c6a44 (diff)
dt-bindings: qcom: document preferred compatible naming
Compatibles can come in two formats. Either "vendor,ip-soc" or "vendor,soc-ip". Qualcomm bindings were mixing both of usages, so add a DT schema file documenting preferred policy and enforcing it for all new compatibles, except few existing patterns. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org> Reviewed-by: Bjorn Andersson <andersson@kernel.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220928152501.490840-1-krzysztof.kozlowski@linaro.org
-rw-r--r--Documentation/devicetree/bindings/arm/qcom-soc.yaml65
1 files changed, 65 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/qcom-soc.yaml b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
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+++ b/Documentation/devicetree/bindings/arm/qcom-soc.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/qcom-soc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SoC compatibles naming convention
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+
+description: |
+ Guidelines for new compatibles for SoC blocks/components.
+ When adding new compatibles in new bindings, use the format::
+ qcom,SoC-IP
+
+ For example::
+ qcom,sdm845-llcc-bwmon
+
+ When adding new compatibles to existing bindings, use the format in the
+ existing binding, even if it contradicts the above.
+
+select:
+ properties:
+ compatible:
+ pattern: "^qcom,.*(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ required:
+ - compatible
+
+properties:
+ compatible:
+ oneOf:
+ # Preferred naming style for compatibles of SoC components:
+ - pattern: "^qcom,(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+-.*$"
+ - pattern: "^qcom,(sa|sc)8[0-9]+[a-z][a-z]?-.*$"
+
+ # Legacy namings - variations of existing patterns/compatibles are OK,
+ # but do not add completely new entries to these:
+ - pattern: "^qcom,[ak]pss-wdt-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,gcc-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,mmcc-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,pcie-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,rpm-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - pattern: "^qcom,scm-(apq|ipq|mdm|msm|qcm|qcs|sa|sc|sdm|sdx|sm)[0-9]+.*$"
+ - enum:
+ - qcom,gpucc-sdm630
+ - qcom,gpucc-sdm660
+ - qcom,lcc-apq8064
+ - qcom,lcc-ipq8064
+ - qcom,lcc-mdm9615
+ - qcom,lcc-msm8960
+ - qcom,lpass-cpu-apq8016
+ - qcom,usb-ss-ipq4019-phy
+ - qcom,usb-hs-ipq4019-phy
+ - qcom,vqmmc-ipq4019-regulator
+
+ # Legacy compatibles with wild-cards - list cannot grow with new bindings:
+ - enum:
+ - qcom,ipq806x-gmac
+ - qcom,ipq806x-nand
+ - qcom,ipq806x-sata-phy
+ - qcom,ipq806x-usb-phy-ss
+ - qcom,ipq806x-usb-phy-hs
+
+additionalProperties: true