From 5d2199ea340d158587b09e2ab95908c210fd4742 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 19 Dec 2016 01:13:09 +0100 Subject: extcon: axp288: Fix possibly reporting 2 cables in state true When the charger type changes from e.g. SDP to CDP, without Vbus being seen as low in between axp288_handle_chrg_det_event would set the state for the new cable type to true, without clearing the state of the previous cable type to false. This commit fixes this and also gets rid of the function local static cable variable, properly storing all drv state in the axp288_extcon_info struct. Signed-off-by: Hans de Goede Signed-off-by: Chanwoo Choi --- drivers/extcon/extcon-axp288.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/extcon/extcon-axp288.c') diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c index 43b3637a71a9..98289a266810 100644 --- a/drivers/extcon/extcon-axp288.c +++ b/drivers/extcon/extcon-axp288.c @@ -115,6 +115,7 @@ struct axp288_extcon_info { int irq[EXTCON_IRQ_END]; struct extcon_dev *edev; struct notifier_block extcon_nb; + unsigned int previous_cable; }; /* Power up/down reason string array */ @@ -154,9 +155,9 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info) static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info) { - static unsigned int cable; int ret, stat, cfg, pwr_stat; u8 chrg_type; + unsigned int cable = info->previous_cable; bool vbus_attach = false; ret = regmap_read(info->regmap, AXP288_PS_STAT_REG, &pwr_stat); @@ -212,7 +213,11 @@ no_vbus: vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC : EXTCON_GPIO_MUX_SEL_PMIC); - extcon_set_state_sync(info->edev, cable, vbus_attach); + extcon_set_state_sync(info->edev, info->previous_cable, false); + if (vbus_attach) { + extcon_set_state_sync(info->edev, cable, vbus_attach); + info->previous_cable = cable; + } return 0; @@ -263,6 +268,7 @@ static int axp288_extcon_probe(struct platform_device *pdev) info->dev = &pdev->dev; info->regmap = axp20x->regmap; info->regmap_irqc = axp20x->regmap_irqc; + info->previous_cable = EXTCON_NONE; if (pdata) info->gpio_mux_cntl = pdata->gpio_mux_cntl; -- cgit v1.2.3