| Message ID | 20220401145820.1003826-3-krzysztof.kozlowski@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | ufs: set power domain performance state when scaling gears | expand |
On Fri, 01 Apr 2022 16:58:18 +0200, Krzysztof Kozlowski wrote: > Except scaling UFS and bus clocks, it's necessary to scale also the > voltages of regulators or power domain performance state levels. Adding > Operating Performance Points table allows to adjust power domain > performance state, depending on the UFS clock speed. > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > --- > Documentation/devicetree/bindings/ufs/ufs-common.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/ufs/ufs-common.yaml b/Documentation/devicetree/bindings/ufs/ufs-common.yaml index 47a4e9e1a775..ce767bfbf05a 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-common.yaml +++ b/Documentation/devicetree/bindings/ufs/ufs-common.yaml @@ -26,6 +26,9 @@ properties: array is "0" then it is assumed that the frequency is set by the parent clock or a fixed rate clock source. + operating-points-v2: true + opp-table: true + interrupts: maxItems: 1 @@ -75,6 +78,7 @@ properties: dependencies: freq-table-hz: [ 'clocks' ] + operating-points-v2: [ 'freq-table-hz' ] required: - interrupts
Except scaling UFS and bus clocks, it's necessary to scale also the voltages of regulators or power domain performance state levels. Adding Operating Performance Points table allows to adjust power domain performance state, depending on the UFS clock speed. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- Documentation/devicetree/bindings/ufs/ufs-common.yaml | 4 ++++ 1 file changed, 4 insertions(+)