linux-kernel - Re: [PATCH v2 1/2] xhci: Apply reset resume quirk to Etron EJ188 xHCI host

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Date: Tue, 28 May 2024 11:36:13 +0300
From: Sergei Shtylyov <sergei.shtylyov@...il.com>
To: Kuangyi Chiang <ki.chiang65@...il.com>, mathias.nyman@...el.com,
 gregkh@...uxfoundation.org
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
 stable@...r.kernel.org
Subject: Re: [PATCH v2 1/2] xhci: Apply reset resume quirk to Etron EJ188 xHCI
 host

On 5/28/24 6:31 AM, Kuangyi Chiang wrote:

> As described in commit c877b3b2ad5c ("xhci: Add reset on resume quirk for
> asrock p67 host"), EJ188 have the same issue as EJ168, where completely
> dies on resume. So apply XHCI_RESET_ON_RESUME quirk to EJ188 as well.
> 
> Cc: <stable@...r.kernel.org>
> Signed-off-by: Kuangyi Chiang <ki.chiang65@...il.com>
> ---
> Changes in v2:
> - Porting to latest release
> 
>  drivers/usb/host/xhci-pci.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
> index c040d816e626..b47d57d80b96 100644
> --- a/drivers/usb/host/xhci-pci.c
> +++ b/drivers/usb/host/xhci-pci.c
[...]
> @@ -395,6 +396,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
>  		xhci->quirks |= XHCI_RESET_ON_RESUME;
>  		xhci->quirks |= XHCI_BROKEN_STREAMS;
>  	}
> +	if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
> +			pdev->device == PCI_DEVICE_ID_EJ188) {
> +		xhci->quirks |= XHCI_RESET_ON_RESUME;
> +	}

   You don't need {} around a single statement, according to CodingStyle.

[...]

MBR, Sergey