[PATCH v7 2/8] dt-bindings: clock: qcom,videocc: add mmcx power domain

Dmitry Baryshkov
2021-08-29T15:48:05Z

On sm8250 videocc 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@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/clock/qcom,videocc.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
index 567202942b88..5d7053503435 100644
--- a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
@@ -47,6 +47,16 @@ properties:
reg:
maxItems: 1

+ power-domains:
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+ maxItems: 1
+
required:
- compatible
- reg
@@ -61,6 +71,7 @@ additionalProperties: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
clock-controller@ab00000 {
compatible = "qcom,sdm845-videocc";
reg = <0x0ab00000 0x10000>;
@@ -69,5 +80,7 @@ examples:
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
+ power-domains = <&rpmhpd SM8250_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
...
--
2.33.0