linux-kernel - Re: [PATCH] xhci: EHCI/xHCI ports switching on Intense-PC.

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Message-ID: <500558A0.6050609@mvista.com>
Date:	Tue, 17 Jul 2012 16:20:48 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	Denis Turischev <denis@...pulab.co.il>
CC:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] xhci: EHCI/xHCI ports switching on Intense-PC.

Hello.

On 16-07-2012 20:46, Denis Turischev wrote:

> Intense-PC is Compulab's mini-desktop with Intel Panther Point
> chipset.

> Unconditional ports switching provided by function
> usb_enable_xhci_ports() leads to surprising results, after shutdown
> system powered-on again after a few seconds. On Windows power
> related problems were not observed.

> The patch avoids ports switching for Intense-PC.

> Signed-off-by: Denis Turischev <denis@...pulab.co.il>
> ---
>   drivers/usb/host/pci-quirks.c |    7 +++++++
>   1 file changed, 7 insertions(+)

> diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
> index df0828c..6f72593 100644
> --- a/drivers/usb/host/pci-quirks.c
> +++ b/drivers/usb/host/pci-quirks.c
> @@ -759,6 +759,13 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev)
>   {
>   	u32		ports_available;
>
> +	const char *brd_name;

    Group this declaration with the above one please.

> +	brd_name = dmi_get_system_info(DMI_BOARD_NAME);

    Could be an initializer...

WBR, Sergei
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