linux-kernel - [PATCH v4 1/6] dt-bindings: clock: qcom,dispcc-sm8x50: add mmcx power domain

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Message-Id: <20210710013253.1134341-2-dmitry.baryshkov@linaro.org>
Date:   Sat, 10 Jul 2021 04:32:48 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Taniya Das <tdas@...eaurora.org>,
        Jonathan Marek <jonathan@...ek.ca>,
        Michael Turquette <mturquette@...libre.com>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-clk@...r.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 1/6] dt-bindings: clock: qcom,dispcc-sm8x50: add mmcx power domain

On sm8250 dispcc requires MMCX power domain to be powered up before
clock controller's registers become available. For now sm8250 was using
external regulator driven by the power domain to describe this
relationship. Switch into specifying power-domain and required opp-state
directly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 .../devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml      | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
index 0cdf53f41f84..d5c4fed56b6e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
@@ -55,6 +55,11 @@ properties:
   reg:
     maxItems: 1
 
+  power-domains:
+    description:
+      A phandle and PM domain specifier for the MMCX power domain.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -69,6 +74,7 @@ additionalProperties: false
 examples:
   - |
     #include <dt-bindings/clock/qcom,rpmh.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
     clock-controller@...0000 {
       compatible = "qcom,sm8250-dispcc";
       reg = <0x0af00000 0x10000>;
@@ -89,5 +95,6 @@ examples:
       #clock-cells = <1>;
       #reset-cells = <1>;
       #power-domain-cells = <1>;
+      power-domains = <&rpmhpd SM8250_MMCX>;
     };
 ...
-- 
2.30.2