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@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210829154757.784699-2-dmitry.baryshkov@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
index 6667261..3149767 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
@@ -56,6 +56,16 @@
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
@@ -70,6 +80,7 @@
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
clock-controller@af00000 {
compatible = "qcom,sm8250-dispcc";
reg = <0x0af00000 0x10000>;
@@ -90,5 +101,7 @@
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
+ power-domains = <&rpmhpd SM8250_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
};
...
