From: Hans de Goede Date: Wed, 21 Dec 2016 14:36:51 +0000 (+0100) Subject: power: supply: axp288_charger: Actually get and use the USB_HOST extcon device X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7508f44129ca3dc749d057fa8c6f7164d85153db;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git power: supply: axp288_charger: Actually get and use the USB_HOST extcon device Nothing was setting info->otg.cable, so the extcon_get_cable_state_ calls on it would always return -EINVAL. This commit fixes this by actually setting info->otg.cable using the new extcon_get_extcon_dev_by_cable_id function. This commit also makes failing to register the extcon notifier for the USB_HOST cable an error rather then a warning, because we MUST have this notfier to properly disable the VBUS path when in host mode so that we're not drawing current from the 5V boost converter which is supplying power to the otg port when in host mode. Signed-off-by: Hans de Goede Signed-off-by: Sebastian Reichel --- diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c index 1588efd88a1c..4443f11525b8 100644 --- a/drivers/power/supply/axp288_charger.c +++ b/drivers/power/supply/axp288_charger.c @@ -127,6 +127,7 @@ #define ILIM_3000MA 3000 /* 3000mA */ #define AXP288_EXTCON_DEV_NAME "axp288_extcon" +#define USB_HOST_EXTCON_DEV_NAME "INT3496:00" enum { VBUS_OV_IRQ = 0, @@ -833,6 +834,12 @@ static int axp288_charger_probe(struct platform_device *pdev) return -EPROBE_DEFER; } + info->otg.cable = extcon_get_extcon_dev(USB_HOST_EXTCON_DEV_NAME); + if (info->otg.cable == NULL) { + dev_dbg(dev, "EXTCON_USB_HOST is not ready, probe deferred\n"); + return -EPROBE_DEFER; + } + platform_set_drvdata(pdev, info); mutex_init(&info->lock); @@ -868,12 +875,12 @@ static int axp288_charger_probe(struct platform_device *pdev) info->otg.id_nb.notifier_call = axp288_charger_handle_otg_evt; ret = devm_extcon_register_notifier(&pdev->dev, info->otg.cable, EXTCON_USB_HOST, &info->otg.id_nb); - if (ret) - dev_warn(&pdev->dev, "failed to register otg notifier\n"); - - if (info->otg.cable) - info->otg.id_short = extcon_get_state( - info->otg.cable, EXTCON_USB_HOST); + if (ret) { + dev_err(dev, "failed to register EXTCON_USB_HOST notifier\n"); + return ret; + } + info->otg.id_short = extcon_get_cable_state_(info->otg.cable, + EXTCON_USB_HOST); /* Register charger interrupts */ for (i = 0; i < CHRG_INTR_END; i++) {