linux-kernel - Re: [Letux-kernel] [PATCH v2] musb: omap2430: do not assume balanced enable()/disable()

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Message-ID: <20160804142919.GG28140@atomide.com>
Date:	Thu, 4 Aug 2016 07:29:19 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	"H. Nikolaus Schaller" <hns@...delico.com>
Cc:	Andreas Kemnade <andreas@...nade.info>, Bin Liu <b-liu@...com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linux USB Mailing List <linux-usb@...r.kernel.org>,
	linux-omap <linux-omap@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Discussions about the Letux Kernel 
	<letux-kernel@...nphoenux.org>
Subject: Re: [Letux-kernel] [PATCH v2] musb: omap2430: do not assume balanced
 enable()/disable()

Hi,

* H. Nikolaus Schaller <hns@...delico.com> [160803 10:07]:
> All this prevents detection of cable plugin-events and VBUS measurement
> and setting OTG_EN before charging is attempted.

So I gave this patch a try but it now blocks all deeper SoC idle
states as the PHY stays active. I think the real fix is to make
sure the charger behaves independent of the USB PHY state. So
probably this needs to be fixed in phy-twl4030-usb.c and
twl4030_charger.c instead. Now it sounds like we're also shutting
down the charger with the USB PHY.

Regards,

Tony