linux-kernel - Re: [PATCH v4 5/5] usb: xhci-pci: Add reset controller support

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Message-ID: <7959ad10-4112-e880-14d9-9c24574c8026@denx.de>
Date:   Fri, 12 Jun 2020 19:08:07 +0200
From:   Marek Vasut <marex@...x.de>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>, mbrugger@...e.com,
        u-boot@...ts.denx.de, bmeng.cn@...il.com,
        linux-kernel@...r.kernel.org
Cc:     sjg@...omium.org, m.szyprowski@...sung.com, s.nawrocki@...sung.com,
        mark.kettenis@...all.nl
Subject: Re: [PATCH v4 5/5] usb: xhci-pci: Add reset controller support

On 6/12/20 6:46 PM, Nicolas Saenz Julienne wrote:
> Some atypical users of xhci-pci might need to manually reset their xHCI
> controller before starting the HCD setup. Check if a reset controller
> device is available to the PCI bus and trigger a reset.
> 
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> ---
>  drivers/usb/host/xhci-pci.c | 38 +++++++++++++++++++++++++++++++++++--
>  1 file changed, 36 insertions(+), 2 deletions(-)

Can the XHCI core code do the reset management instead ? Then everyone
benefits from it.

The rest of the series is nice, thanks.