From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45492 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755009AbeCSJOk (ORCPT ); Mon, 19 Mar 2018 05:14:40 -0400 Subject: Patch "Input: tsc2007 - check for presence and power down tsc2007 during probe" has been added to the 3.18-stable tree To: hns@goldelico.com, alexander.levin@microsoft.com, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org Cc: , From: Date: Mon, 19 Mar 2018 10:13:03 +0100 Message-ID: <1521450783126134@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled Input: tsc2007 - check for presence and power down tsc2007 during probe to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Mon Mar 19 10:11:52 CET 2018 From: "H. Nikolaus Schaller" Date: Fri, 17 Feb 2017 12:51:19 -0800 Subject: Input: tsc2007 - check for presence and power down tsc2007 during probe From: "H. Nikolaus Schaller" [ Upstream commit 934df23171e7c5b71d937104d4957891c39748ff ] 1. check if chip is really present and don't succeed if it isn't. 2. if it succeeds, power down the chip until accessed Signed-off-by: H. Nikolaus Schaller Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/input/touchscreen/tsc2007.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -456,6 +456,14 @@ static int tsc2007_probe(struct i2c_clie tsc2007_stop(ts); + /* power down the chip (TSC2007_SETUP does not ACK on I2C) */ + err = tsc2007_xfer(ts, PWRDOWN); + if (err < 0) { + dev_err(&client->dev, + "Failed to setup chip: %d\n", err); + return err; /* usually, chip does not respond */ + } + err = input_register_device(input_dev); if (err) { dev_err(&client->dev, Patches currently in stable-queue which might be from hns@goldelico.com are queue-3.18/input-tsc2007-check-for-presence-and-power-down-tsc2007-during-probe.patch