linux-kernel - Re: [PATCH v2 15/16] usb: dwc3: add tx demphasis quirk

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Date:	Fri, 17 Oct 2014 09:57:36 -0500
From:	Felipe Balbi <balbi@...com>
To:	Huang Rui <ray.huang@....com>
CC:	Felipe Balbi <balbi@...com>,
	Alan Stern <stern@...land.harvard.edu>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Paul Zimmerman <Paul.Zimmerman@...opsys.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Vincent Wan <vincent.wan@....com>, Tony Li <tony.li@....com>,
	<linux-usb@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 15/16] usb: dwc3: add tx demphasis quirk

HI,

On Fri, Oct 17, 2014 at 04:53:40PM +0800, Huang Rui wrote:
> AMD NL needs to enable Tx Deemphasis quirk.
> 
> Signed-off-by: Huang Rui <ray.huang@....com>
> ---
>  drivers/usb/dwc3/core.c          | 3 +++
>  drivers/usb/dwc3/core.h          | 2 ++
>  drivers/usb/dwc3/dwc3-pci.c      | 3 ++-
>  drivers/usb/dwc3/platform_data.h | 1 +
>  4 files changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> index f3c9699..3ccfe41 100644
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@ -392,6 +392,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc)
>  	if (dwc->quirks & DWC3_QUIRK_RX_DETOPOLL)
>  		reg |= DWC3_GUSB3PIPECTL_RX_DETOPOLL;
>  
> +	if (dwc->quirks & DWC3_QUIRK_TX_DEEPH)

	if (dwc->tx_deemphasis_quirk)

> diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
> index 6f789fd..146eb2f 100644
> --- a/drivers/usb/dwc3/dwc3-pci.c
> +++ b/drivers/usb/dwc3/dwc3-pci.c
> @@ -156,7 +156,8 @@ static int dwc3_pci_probe(struct pci_dev *pci,
>  			| DWC3_QUIRK_DEPP1P2P3
>  			| DWC3_QUIRK_DEPOCHANGE
>  			| DWC3_QUIRK_LFPSFILT
> -			| DWC3_QUIRK_RX_DETOPOLL;
> +			| DWC3_QUIRK_RX_DETOPOLL
> +			| DWC3_QUIRK_TX_DEEPH;

last patch.

-- 
balbi

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