From ba52e75718784fda1b683ee0bfded72a0b83b047 Mon Sep 17 00:00:00 2001 From: Liam Breck Date: Wed, 18 Jan 2017 09:26:54 -0800 Subject: [PATCH] power: supply: bq24190_charger: Handle fault before status on interrupt 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 --- drivers/power/supply/bq24190_charger.c | 46 +++++++++++++++++----------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c index c70ce19..881f481 100644 --- a/drivers/power/supply/bq24190_charger.c +++ b/drivers/power/supply/bq24190_charger.c @@ -1175,29 +1175,6 @@ static irqreturn_t bq24190_irq_handler_thread(int irq, void *data) 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_thread(int irq, void *data) 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) -- 2.7.4