Re: [PATCH 2/3] PCI: tegra194: Avoid full Endpoint reinit on PERST#

[Manikanta Maddireddy]

On 17/10/26 2:47 pm, Manivannan Sadhasivam wrote:
> On Wed, Sep 23, 2026 at 12:55:53PM +0530, Manikanta Maddireddy wrote:
> > Tegra194 and Tegra234 Endpoint mode receive PERST# as a fundamental
> > reset. Controller registers are lost across that reset, but DWC
> > Endpoint resources live for the controller lifetime.
>
> What do you mean by 'DWC Endpoint resources are live for controller lifetime'?
> What resources you mean?
>
> - Mani

I mean the DWC software objects retained while the driver remains bound, 
rather than hardware register contents. The existing initialization 
already reuses several allocated objects; the unnecessary repeated 
teardown/setup primarily concerns debugfs and eDMA where present. I’ll 
name the resources explicitly and distinguish their lifetime from the 
reset-lost register state.

- Manikanta

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nvpublic