linux-kernel - [PATCH v7 1/3] dt-bindings: ufs: qcom: Add ICE phandle

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Message-Id: <20230408214041.533749-2-abel.vesa@linaro.org>
Date:   Sun,  9 Apr 2023 00:40:39 +0300
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche <bvanassche@....org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Biggers <ebiggers@...nel.org>
Cc:     linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-scsi@...r.kernel.org
Subject: [PATCH v7 1/3] dt-bindings: ufs: qcom: Add ICE phandle

Starting with SM8550, the ICE will have its own devicetree node
so add the qcom,ice property to reference it.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---

The v6 is here:
https://lore.kernel.org/all/20230407105029.2274111-3-abel.vesa@linaro.org/

Changes since v6:
 * Dropped the minItems for both the qcom,ice and the reg in the
   qcom,ice compatile subschema, like Krzysztof suggested

Changes since v5:
 * dropped the sm8550 specific subschema and replaced it with one that
   mutually excludes the qcom,ice vs both the ICE specific reg range
   and the ICE clock

Changes since v4:
 * Added check for sm8550 compatible w.r.t. qcom,ice in order to enforce
   it while making sure none of the other platforms are allowed to use it

Changes since v3:
 * dropped the "and drop core clock" part from subject line

Changes since v2:
 * dropped all changes except the qcom,ice property


 .../devicetree/bindings/ufs/qcom,ufs.yaml     | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index c5a06c048389..10d426ba1959 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -70,6 +70,10 @@ properties:
   power-domains:
     maxItems: 1
 
+  qcom,ice:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: phandle to the Inline Crypto Engine node
+
   reg:
     minItems: 1
     maxItems: 2
@@ -187,6 +191,26 @@ allOf:
 
     # TODO: define clock bindings for qcom,msm8994-ufshc
 
+  - if:
+      properties:
+        qcom,ice:
+          maxItems: 1
+    then:
+      properties:
+        reg:
+          maxItems: 1
+        clocks:
+          minItems: 8
+          maxItems: 8
+    else:
+      properties:
+        reg:
+          minItems: 2
+          maxItems: 2
+        clocks:
+          minItems: 9
+          maxItems: 11
+
 unevaluatedProperties: false
 
 examples:
-- 
2.34.1