Re: [PATCH v3 00/19] Disable USB U1/U2 entry for QC targets

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On Wed, Dec 18, 2024 at 05:18:50PM +0530, Prashanth K wrote:
> 
> 
> On 18-12-24 04:57 pm, Dmitry Baryshkov wrote:
> > On Wed, Dec 18, 2024 at 03:56:48PM +0530, Prashanth K wrote:
> >> Enabling U1 and U2 power-saving states can lead to stability and
> >> performance issues, particularly for latency-sensitive or high-
> >> throughput applications. These low-power link states are intended
> >> to reduce power consumption by allowing the device to enter partial
> >> low-power modes during idle periods. However, they can sometimes
> >> result in unexpected behavior. Over the years, some of the issues
> >> seen are as follows:
> >>
> > 
> > [..]
> > 
> >>
> >> This series was earlier started by Krishna Kurapati where he disabled
> >> U1/U2 on some SM targets. I'm extending this to more devices including
> >> Auto, Compute and IOT platforms. On a side note, this quirk has been
> >> already included on some mobile targets like SM8550/8650.
> > 
> > Why are you resending previous patches rather than adding another series
> > on top of it?
> > 
> Hi Dmitry,
> 
> RFC had only one patch with quirks (to disable u1/u2) only for few
> targets (SM8150, 8250, 8350, 8450). It was later decided to split it
> into per-file commits as per the review comments. Hence I clubbed
> Krishna's changes along with few more targets. Let me know if this needs
> to be changed.

No, it's fine. The text in the commit message lead me to a wrong
conclusion.

> 
> >>
> >> Changes in v2:
> >> - Removed the wrongly added quirks from tcsr_mutex node.
> >> - Link to v2: https://lore.kernel.org/all/20241213095237.1409174-1-quic_prashk@xxxxxxxxxxx/
> > 
> > What was changed in v3?
> It was supposed to be "Changes in v3" instead of v2.

Then where is a changelog between RFC and v2?

Please consider switching to the b4 tool, it handles such issues for
you.

> > 
> >>
> >> Link to RFC:
> >> https://lore.kernel.org/all/20241107073650.13473-1-quic_kriskura@xxxxxxxxxxx/#Z31arch:arm64:boot:dts:qcom:sm8250.dtsi
> >>
> > 
> Regards,
> Prashanth K
> 

-- 
With best wishes
Dmitry




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