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From: balbi@ti.com (Felipe Balbi)
To: linux-arm-kernel@lists.infradead.org
Subject: [V9 PATCH 01/12] usb: phy: protect phy init and shutdown for mutiple deivces
Date: Mon, 29 Apr 2013 21:24:41 +0300	[thread overview]
Message-ID: <20130429182441.GA1632@arwen.pp.htv.fi> (raw)
In-Reply-To: <1366784606-1813-2-git-send-email-chao.xie@marvell.com>

On Wed, Apr 24, 2013 at 02:23:15AM -0400, Chao Xie wrote:
> diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
> index 6b5978f..98d7e60 100644
> --- a/include/linux/usb/phy.h
> +++ b/include/linux/usb/phy.h
> @@ -87,6 +87,14 @@ struct usb_phy {
>  	/* to support controllers that have multiple transceivers */
>  	struct list_head	head;
>  
> +	/*
> +	 * PHY may be shared by multiple devices.
> +	 * mutex and refcount are used to make sure PHY only initialize or
> +	 * shutdown once.

bad grammar in this sentence.

> +	 */
> +	struct mutex		phy_mutex;
> +	unsigned int		refcount;

why don't you use an atomic_t ?

-- 
balbi
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  reply	other threads:[~2013-04-29 18:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-24  6:23 [V9 PATCH 00/12] mv-usb phy driver Chao Xie
2013-04-24  6:23 ` [V9 PATCH 01/12] usb: phy: protect phy init and shutdown for mutiple deivces Chao Xie
2013-04-29 18:24   ` Felipe Balbi [this message]
2013-04-29 19:26     ` Russell King - ARM Linux
2013-05-06  7:22     ` Chao Xie
2013-04-24  6:23 ` [V9 PATCH 02/12] usb: phy: mv_usb2: add PHY driver for marvell usb2 controller Chao Xie
2013-04-24  6:23 ` [V9 PATCH 03/12] usb: gadget: mv_udc: use PHY driver for udc Chao Xie
2013-04-24  6:23 ` [V9 PATCH 04/12] usb: ehci: ehci-mv: use PHY driver for ehci Chao Xie
2013-04-24  6:23 ` [V9 PATCH 05/12] usb: phy: phy-mv-usb: use USB2 PHY driver for otg Chao Xie
2013-04-24  6:23 ` [V9 PATCH 06/12] usb: mv_u3d: usb phy drivers for phy operation Chao Xie
2013-04-24  6:23 ` [V9 PATCH 07/12] arm: mmp2: change the defintion of usb devices Chao Xie
2013-04-24  6:23 ` [V9 PATCH 08/12] arm: pxa910: " Chao Xie
2013-04-24  6:23 ` [V9 PATCH 09/12] arm: ttc_dkb: modify usb support Chao Xie
2013-04-24  6:23 ` [V9 PATCH 10/12] arm: mmp: remove unused usb devices Chao Xie
2013-04-24  6:23 ` [V9 PATCH 11/12] arm: brownstone: add usb support for the board Chao Xie
2013-04-24  6:23 ` [V9 PATCH 12/12] usb: mv_usb: remove the phy callbacks in pdata Chao Xie
  -- strict thread matches above, loose matches on Subject: below --
2013-04-07 10:29 [V9 PATCH 00/12] mv-usb phy driver Chao Xie
2013-04-07 10:29 ` [V9 PATCH 01/12] usb: phy: protect phy init and shutdown for mutiple deivces Chao Xie

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