Re: [PATCH 5/5] PCI: brcmstb: disable L0s component of ASPM by default

From: Florian Fainelli
Date: Thu Apr 30 2020 - 15:21:16 EST


On 4/30/20 11:55 AM, Jim Quinlan wrote:
> From: Jim Quinlan <jquinlan@xxxxxxxxxxxx>
>
> Some informal internal experiments has shown that the BrcmSTB ASPM L0s
> savings may introduce an undesirable noise signal on some customers'
> boards. In addition, L0s was found lacking in realized power savings,
> especially relative to the L1 ASPM component. This is BrcmSTB's
> experience and may not hold for others. At any rate, we disable L0s
> savings by default unless the DT node has the 'brcm,aspm-en-l0s'
> property.
>
> Signed-off-by: Jim Quinlan <jquinlan@xxxxxxxxxxxx>

Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian