Messages in this thread | | | Date | Wed, 29 Nov 2023 08:58:45 -0600 | From | Rob Herring <> | Subject | Re: [PATCH 1/2] dt-bindings: serial: qcom,msm-uartdm: Vote for shared resources |
| |
On Tue, Nov 28, 2023 at 10:43:32AM +0100, Stephan Gerhold wrote: > Document power-domains, operating-points-v2 and interconnects to allow > making performance state votes for certain clock frequencies of the UART > DM controller. The interconnect path to DRAM is needed when UART DM is > used together with a DMA engine. > > Voting for these shared resources is necessary to guarantee performance > with power management enabled. Otherwise these resources might run at > minimal performance state which is not sufficient for certain UART > baud rates.
I find the subject a bit strange because voting is a QCom term/concept and somewhat outside the scope of the binding. The justification is really just that the h/w has these resources. In any case,
Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com> > --- > .../devicetree/bindings/serial/qcom,msm-uartdm.yaml | 13 +++++++++++++ > 1 file changed, 13 insertions(+)
| |