Re: [PATCH v2 0/3] phy: qcom-qmp-pcie: Add support to keep refclk always on

[Konrad Dybcio]

On 11/7/23 13:26, Krishna chaitanya chundru wrote:
> This series adds support to provide refclk to endpoint even in low
> power states.
>
> Due to some platform specific issues with CLKREQ signal, it is not being
> propagated to the host and as host doesn't know the clkreq signal host is
> not sending refclk. Due to this endpoint is seeing linkdown and going
> to bad state.
> To avoid those ref clk should be provided always to the endpoint. The
> issue is coming only when ep intiates the L1.1 or L1.2 exit and clkreq
> is not being propagated properly to the host.
I'm gonna sound like a broken record, but:

How much power does this consume? Would it matter if we kept this
clock always-on for all platforms with this version of the phy?

Konrad