From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:43960 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751531AbdEIJot (ORCPT ); Tue, 9 May 2017 05:44:49 -0400 Subject: Patch "power: supply: bq24190_charger: Handle fault before status on interrupt" has been added to the 4.4-stable tree To: liam@networkimprov.net, gregkh@linuxfoundation.org, kernel@networkimprov.net, mgreer@animalcreek.com, sre@kernel.org, tony@atomide.com Cc: , From: Date: Tue, 09 May 2017 11:44:08 +0200 Message-ID: <149432304822880@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 power: supply: bq24190_charger: Handle fault before status on interrupt to the 4.4-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: power-supply-bq24190_charger-handle-fault-before-status-on-interrupt.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From ba52e75718784fda1b683ee0bfded72a0b83b047 Mon Sep 17 00:00:00 2001 From: Liam Breck Date: Wed, 18 Jan 2017 09:26:54 -0800 Subject: power: supply: bq24190_charger: Handle fault before status on interrupt From: Liam Breck commit ba52e75718784fda1b683ee0bfded72a0b83b047 upstream. Reading both fault and status registers and logging any fault should take priority over handling status register update. Fix by moving the status handling to later in interrupt routine. Fixes: d7bf353fd0aa3 ("bq24190_charger: Add support for TI BQ24190 Battery Charger") Signed-off-by: Liam Breck Acked-by: Mark Greer Acked-by: Tony Lindgren Signed-off-by: Sebastian Reichel Signed-off-by: Greg Kroah-Hartman --- drivers/power/bq24190_charger.c | 46 ++++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 23 deletions(-) --- a/drivers/power/bq24190_charger.c +++ b/drivers/power/bq24190_charger.c @@ -1175,29 +1175,6 @@ static irqreturn_t bq24190_irq_handler_t goto out; } - if (ss_reg != bdi->ss_reg) { - /* - * The device is in host mode so when PG_STAT goes from 1->0 - * (i.e., power removed) HIZ needs to be disabled. - */ - if ((bdi->ss_reg & BQ24190_REG_SS_PG_STAT_MASK) && - !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK)) { - ret = bq24190_write_mask(bdi, BQ24190_REG_ISC, - BQ24190_REG_ISC_EN_HIZ_MASK, - BQ24190_REG_ISC_EN_HIZ_SHIFT, - 0); - if (ret < 0) - dev_err(bdi->dev, "Can't access ISC reg: %d\n", - ret); - } - - if ((bdi->ss_reg & battery_mask_ss) != (ss_reg & battery_mask_ss)) - alert_battery = true; - if ((bdi->ss_reg & ~battery_mask_ss) != (ss_reg & ~battery_mask_ss)) - alert_charger = true; - bdi->ss_reg = ss_reg; - } - i = 0; do { ret = bq24190_read(bdi, BQ24190_REG_F, &f_reg); @@ -1224,6 +1201,29 @@ static irqreturn_t bq24190_irq_handler_t mutex_unlock(&bdi->f_reg_lock); } + if (ss_reg != bdi->ss_reg) { + /* + * The device is in host mode so when PG_STAT goes from 1->0 + * (i.e., power removed) HIZ needs to be disabled. + */ + if ((bdi->ss_reg & BQ24190_REG_SS_PG_STAT_MASK) && + !(ss_reg & BQ24190_REG_SS_PG_STAT_MASK)) { + ret = bq24190_write_mask(bdi, BQ24190_REG_ISC, + BQ24190_REG_ISC_EN_HIZ_MASK, + BQ24190_REG_ISC_EN_HIZ_SHIFT, + 0); + if (ret < 0) + dev_err(bdi->dev, "Can't access ISC reg: %d\n", + ret); + } + + if ((bdi->ss_reg & battery_mask_ss) != (ss_reg & battery_mask_ss)) + alert_battery = true; + if ((bdi->ss_reg & ~battery_mask_ss) != (ss_reg & ~battery_mask_ss)) + alert_charger = true; + bdi->ss_reg = ss_reg; + } + if (alert_charger) power_supply_changed(bdi->charger); if (alert_battery) Patches currently in stable-queue which might be from liam@networkimprov.net are queue-4.4/power-supply-bq24190_charger-handle-fault-before-status-on-interrupt.patch queue-4.4/power-supply-bq24190_charger-call-power_supply_changed-for-relevant-component.patch queue-4.4/power-supply-bq24190_charger-install-irq_handler_thread-at-end-of-probe.patch queue-4.4/power-supply-bq24190_charger-call-set_mode_host-on-pm_resume.patch queue-4.4/power-supply-bq24190_charger-don-t-read-fault-register-outside-irq_handle_thread.patch queue-4.4/power-supply-bq24190_charger-fix-irq-trigger-to-irqf_trigger_falling.patch