Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752074AbbHRIIJ (ORCPT ); Tue, 18 Aug 2015 04:08:09 -0400 Received: from muru.com ([72.249.23.125]:44976 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750780AbbHRIIF (ORCPT ); Tue, 18 Aug 2015 04:08:05 -0400 Date: Tue, 18 Aug 2015 01:07:58 -0700 From: Tony Lindgren To: NeilBrown Cc: Sebastian Reichel , Samuel Ortiz , linux-pm@vger.kernel.org, David Woodhouse , linux-kernel@vger.kernel.org, real GTA04 owners , Dmitry Eremin-Solenikov , Pavel Machek , linux-omap@vger.kernel.org, Lee Jones Subject: Re: [PATCH 03/13] twl4030_charger: correctly handle -EPROBE_DEFER from devm_usb_get_phy_by_node Message-ID: <20150818080758.GG4215@atomide.com> References: <20150730001113.4012.18086.stgit@noble> <20150730001124.4012.31980.stgit@noble> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150730001124.4012.31980.stgit@noble> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1751 Lines: 47 * NeilBrown [150729 17:29]: > Now that twl4030_bci_probe can safely return -EPROBE_DEFER, > do so when devm_usb_get_phy_by_node returns that error. > > Signed-off-by: NeilBrown > --- > drivers/power/twl4030_charger.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c > index 045238370d3f..ffc123fb7158 100644 > --- a/drivers/power/twl4030_charger.c > +++ b/drivers/power/twl4030_charger.c > @@ -636,9 +636,13 @@ static int twl4030_bci_probe(struct platform_device *pdev) > > phynode = of_find_compatible_node(bci->dev->of_node->parent, > NULL, "ti,twl4030-usb"); > - if (phynode) > + if (phynode) { > bci->transceiver = devm_usb_get_phy_by_node( > bci->dev, phynode, &bci->usb_nb); > + if (IS_ERR(bci->transceiver) && > + PTR_ERR(bci->transceiver) == -EPROBE_DEFER) > + return -EPROBE_DEFER; > + } > } Neil, the return with -EPROBE_DEFER here causes flakeyness booting for me somehow at least on my logicpd-torpedo-37xx-devkit using omap2plus_defconfig. It seems that the twl4030_bci_probe keeps looping or something about 1/3 of the boots and that probably prevents the other twl modules from loading? Reverting this patch alone seems to fix the issue. I don't think I have a battery wired on this board the USB is wired the same way as on beagle-xm. So I'd assume also flakeyness on beagle xm with this patch. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/