linux-kernel - Re: [PATCH 06/19] usb: dwc3: host: Pass the XHCI_DRD_SUPPORT and XHCI_NEEDS_LHC

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Message-ID: <547685BB.3020109@linux.intel.com>
Date:	Thu, 27 Nov 2014 10:00:27 +0800
From:	"Lu, Baolu" <baolu.lu@...ux.intel.com>
To:	George Cherian <george.cherian@...com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-usb@...r.kernel.org
CC:	peter.chen@...escale.com, sojka@...ica.cz, mathias.nyman@...el.com,
	balbi@...com, gregkh@...uxfoundation.org, tony@...mide.com,
	bcousson@...libre.com, kgene.kim@...sung.com, ben-linux@...ff.org,
	linux@....linux.org.uk, galak@...eaurora.org,
	ijc+devicetree@...lion.org.uk, mark.rutland@....com,
	pawel.moll@....com, robh+dt@...nel.org
Subject: Re: [PATCH 06/19] usb: dwc3: host: Pass the XHCI_DRD_SUPPORT and
 XHCI_NEEDS_LHC_RESET quirk


On 2014年11月25日 21:11, George Cherian wrote:
> Pass the quir flag XHCI_DRD_SUPPORT from DWC3 host to xhci platform driver.
"quir" to "quirk"

Regards,
Baolu

> This enables xhci driver to handle deallocation's differently while in DRD mode.
> Pass the quirk flag XHCI_NEEDS_LHC_RESET from DWC3 host to xhci platform
> driver. This enables to do LHRESET during xhci_reset().
>
> Signed-off-by: George Cherian <george.cherian@...com>
> ---
>   drivers/usb/dwc3/host.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
> index dcb8ca0..257b5b5 100644
> --- a/drivers/usb/dwc3/host.c
> +++ b/drivers/usb/dwc3/host.c
> @@ -53,6 +53,8 @@ int dwc3_host_init(struct dwc3 *dwc)
>   #ifdef CONFIG_DWC3_HOST_USB3_LPM_ENABLE
>   	pdata.usb3_lpm_capable = 1;
>   #endif
> +	pdata.usb_drd_support = 1;
> +	pdata.usb_needs_lhc_reset = 1;
>   
>   	ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
>   	if (ret) {

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