linux-kernel - [PATCH v5 02/18] dt-bindings: clock: qcom,sm8450-camcc: Allow to specify two power domains

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Message-ID: <20250530-videocc-pll-multi-pd-voting-v5-2-02303b3a582d@quicinc.com>
Date: Fri, 30 May 2025 18:50:47 +0530
From: Jagadeesh Kona <quic_jkona@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        "Vladimir
 Zapolskiy" <vladimir.zapolskiy@...aro.org>,
        Dmitry Baryshkov
	<lumag@...nel.org>
CC: Ajit Pandey <quic_ajipan@...cinc.com>,
        Imran Shaik
	<quic_imrashai@...cinc.com>,
        Taniya Das <quic_tdas@...cinc.com>,
        "Satya Priya
 Kakitapalli" <quic_skakitap@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>,
        Jagadeesh Kona <quic_jkona@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Subject: [PATCH v5 02/18] dt-bindings: clock: qcom,sm8450-camcc: Allow to
 specify two power domains

From: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>

To configure the camera PLLs and enable the camera GDSCs on SM8450, SM8475,
SM8550 and SM8650 platforms, the MXC rail must be ON along with MMCX.
Therefore, update the camcc bindings to include the MXC power domain on
these platforms.

Fixes: 9cbc64745fc6 ("dt-bindings: clock: qcom: Add SM8550 camera clock controller")
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
---
 .../devicetree/bindings/clock/qcom,sm8450-camcc.yaml   | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
index 9e79f8fec437b9aecb5103092f6ff2ad1cd42626..3fded6aa712fc1920c4c4a923545901ba804c42f 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
@@ -37,14 +37,18 @@ properties:
       - description: Sleep clock source
 
   power-domains:
-    maxItems: 1
     description:
-      A phandle and PM domain specifier for the MMCX power domain.
+      Power domains required for the clock controller to operate
+    items:
+      - description: MMCX power domain
+      - description: MXC power domain
 
   required-opps:
-    maxItems: 1
     description:
-      A phandle to an OPP node describing required MMCX performance point.
+      OPP nodes that describe required performance points on power domains
+    items:
+      - description: MMCX performance point
+      - description: MXC performance point
 
   reg:
     maxItems: 1
@@ -82,8 +86,10 @@ examples:
                <&rpmhcc RPMH_CXO_CLK>,
                <&rpmhcc RPMH_CXO_CLK_A>,
                <&sleep_clk>;
-      power-domains = <&rpmhpd RPMHPD_MMCX>;
-      required-opps = <&rpmhpd_opp_low_svs>;
+      power-domains = <&rpmhpd RPMHPD_MMCX>,
+                      <&rpmhpd RPMHPD_MXC>;
+      required-opps = <&rpmhpd_opp_low_svs>,
+                      <&rpmhpd_opp_low_svs>;
       #clock-cells = <1>;
       #reset-cells = <1>;
       #power-domain-cells = <1>;

-- 
2.34.1