linux-kernel - Re: [PATCH v2 1/3] usb: host: xhci-plat: Parse xhci-missing_cas

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Message-ID: <ZsaT6VctQ18UEFd4@lizhi-Precision-Tower-5810>
Date: Wed, 21 Aug 2024 21:27:05 -0400
From: Frank Li <Frank.li@....com>
To: Fabio Estevam <festevam@...il.com>
Cc: Mathias Nyman <mathias.nyman@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	jun.li@....com
Subject: Re: [PATCH v2 1/3] usb: host: xhci-plat: Parse
 xhci-missing_cas_quirk and apply quirk

On Wed, Aug 21, 2024 at 06:16:18PM -0300, Fabio Estevam wrote:
> Hi Frank,
>
> On Wed, Aug 21, 2024 at 1:19 PM Frank Li <Frank.Li@....com> wrote:
> >
> > Parse software managed property 'xhci-skip-phy-init-quirk' and
> > 'xhci-skip-phy-init-quirk' to apply related quirk. It allows usb glue layer
> > driver apply these quirk.
>
> Please explain the reason in the commit log.

XHCI_MISSING_CAS and XHCI_SKIP_PHY_INIT is already defined at
drivers/usb/host/xhci.h

This patch just add software manage dt property map to these exist quirk.

>
> What does it fix? Why do we need these quirks? Or what does it improve?

This one just add map dt property to driver existed quirk, not fix anything
in this patch.