linux-kernel - Re: [PATCH v6 15/19] usb: phy: msm: Fix PTS definitions for MSM USB controller

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Message-ID: <53566A23.8010508@cogentembedded.com>
Date:	Tue, 22 Apr 2014 17:09:55 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	"Ivan T. Ivanov" <iivanov@...sol.com>, Felipe Balbi <balbi@...com>
CC:	Tim Bird <tbird20d@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, Tim Bird <tim.bird@...ymobile.com>
Subject: Re: [PATCH v6 15/19] usb: phy: msm: Fix PTS definitions for MSM USB
 controller

Hello.

On 22-04-2014 13:20, Ivan T. Ivanov wrote:

> From: Tim Bird <tbird20d@...il.com>

> Fix the value used for Parallel Transceiver Select (PTS) for the MSM USB
> controller.  This is a standard chipidea PORTSC definition, where
> a PHY_TYPE of 10b (<<30) is ULPI and 11b (<<30) is SERIAL.
> Fix the definitions and use them correctly in the driver code.

> Signed-off-by: Tim Bird <tim.bird@...ymobile.com>
> ---
>   drivers/usb/phy/phy-msm-usb.c    | 8 +++++---
>   include/linux/usb/msm_hsusb_hw.h | 5 +++--
>   2 files changed, 8 insertions(+), 5 deletions(-)

> diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
> index dababf9..e83d13a 100644
> --- a/drivers/usb/phy/phy-msm-usb.c
> +++ b/drivers/usb/phy/phy-msm-usb.c
> @@ -287,8 +287,9 @@ static int msm_link_reset(struct msm_otg *motg)
>   	if (motg->phy_number)
>   		writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2);
>
> +	/* put transciever in serial mode as part of reset */

    s/transciever/transceiver/

[...]

> diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h
> index 575c743..98d3dd8 100644
> --- a/include/linux/usb/msm_hsusb_hw.h
> +++ b/include/linux/usb/msm_hsusb_hw.h
> @@ -31,8 +31,9 @@
>   #define USB_USBINTR          (MSM_USB_BASE + 0x0148)
>
>   #define PORTSC_PHCD            (1 << 23) /* phy suspend mode */
> -#define PORTSC_PTS_MASK         (3 << 30)
> -#define PORTSC_PTS_ULPI         (3 << 30)
> +#define PORTSC_PTS_MASK        (3 << 30)
> +#define PORTSC_PTS_ULPI        (2 << 30)
> +#define PORTSC_PTS_SERIAL      (3 << 30)

    Please use tabs, not spaces here.

WBR, Sergei

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