From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Torokhov Subject: Re: atmel_mxt_ts on droid4: powersave seems to break the driver Date: Tue, 17 Apr 2018 11:20:21 -0700 Message-ID: <20180417182021.GA67621@dtor-ws> References: <20180417073811.GA9450@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20180417073811.GA9450@amd> Sender: linux-kernel-owner@vger.kernel.org To: Pavel Machek Cc: mutt@amd.karlin.mff.cuni.cz, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, sre@kernel.org, nekit1000@gmail.com, mpartap@gmx.net, merlijn@wizzup.org, nick@shmanahar.org, rydberg@bitmath.org, linux-input@vger.kernel.org, bleung@google.com List-Id: linux-input@vger.kernel.org Hi Pavel, On Tue, Apr 17, 2018 at 09:38:11AM +0200, Pavel Machek wrote: > HI! > > v4.17-rc1 on motorola droid 4. > > If I disable/reenable touschreen with xinput, it fails, with this in > the logs: > > [ 1633.749450] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host > [ 1655.938751] atmel_mxt_ts 1-004a: __mxt_read_reg: i2c transfer > failed (-121) > [ 1655.945800] atmel_mxt_ts 1-004a: Failed to read T44 and T5 (-121) > [ 1663.829498] cpcap-usb-phy cpcap-usb-phy.0: connected to USB host > > Unfortunately, xscreensaver seems to break it in a similar way. > There were a few changes to the Atmel driver, ending with commit 96a938aa214e965d5b4a2f10443b29cad14289b9, but they mostly dealt with removal of platform data and moving to generic device properties... Can you try bisecting this series: git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform.git ib-chrome-platform-input-atmel-mx-ts-platform-removal Thanks! -- Dmitry