linux-kernel - [PATCH 4/4] extcon: axp288: Handle reserved charger-type values better

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Message-Id: <20171222123616.9562-4-hdegoede@redhat.com>
Date:   Fri, 22 Dec 2017 13:36:16 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Cc:     Hans de Goede <hdegoede@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] extcon: axp288: Handle reserved charger-type values better

According to the data sheets all the values not handled in the
switch-case are "reserved". Update the dev_warn message to reflect
this and set the cable-type to EXTCON_CHG_USB_SDP (so max 500mA
current draw) as safe default.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/extcon/extcon-axp288.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index cc7c35c7ff02..d60c615f709f 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -205,8 +205,8 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
 		cable = EXTCON_CHG_USB_DCP;
 		break;
 	default:
-		dev_warn(info->dev,
-			"disconnect or unknown or ID event\n");
+		dev_warn(info->dev, "unknown (reserved) bc detect result\n");
+		cable = EXTCON_CHG_USB_SDP;
 	}
 
 no_vbus:
-- 
2.14.3