linux-kernel - Re: [PATCH 04/12] usb: phy: ab8500-usb: fix eye diagram for ab8500 v2.0

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Date:	Wed, 3 Apr 2013 11:53:36 +0300
From:	Felipe Balbi <balbi@...com>
To:	Fabio Baltieri <fabio.baltieri@...aro.org>
CC:	Felipe Balbi <balbi@...com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Praveena Nadahally <praveen.nadahally@...ricsson.com>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	Sakethram Bommisetti <sakethram.bommisetti@...ricsson.com>
Subject: Re: [PATCH 04/12] usb: phy: ab8500-usb: fix eye diagram for ab8500
 v2.0

On Wed, Apr 03, 2013 at 10:45:05AM +0200, Fabio Baltieri wrote:
> From: Sakethram Bommisetti <sakethram.bommisetti@...ricsson.com>
> 
> AB8500 v2.0 has eye diagram issues when drawing more than 100mA from
> VBUS.  Force charging current to 100mA in case of standard host.
> 
> Signed-off-by: Sakethram Bommisetti <sakethram.bommisetti@...ricsson.com>
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Fabio Baltieri <fabio.baltieri@...aro.org>
> ---
>  drivers/usb/phy/phy-ab8500-usb.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
> index 5b92a59..1fd0780 100644
> --- a/drivers/usb/phy/phy-ab8500-usb.c
> +++ b/drivers/usb/phy/phy-ab8500-usb.c
> @@ -485,6 +485,18 @@ static void ab8500_usb_phy_disable_work(struct work_struct *work)
>  		ab8500_usb_peri_phy_dis(ab);
>  }
>  
> +static unsigned ab8500_eyediagram_workaroud(struct ab8500_usb *ab, unsigned mA)
> +{
> +	/* AB8500 V2 has eye diagram issues when drawing more than 100mA from

wrong comment style. Please run *all* patches through checkpatch.pl
--strict and sparse. I can wait 2 more hours before closing my tree for
v3.10.

-- 
balbi

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