linux-kernel - [PATCH v4 3/3] power: gpio-charger: do not use gpio value directly

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Message-Id: <1411504936-21026-4-git-send-email-heiko@sntech.de>
Date:	Tue, 23 Sep 2014 22:42:16 +0200
From:	Heiko Stuebner <heiko@...ech.de>
To:	sre@...nel.org, dbaryshkov@...il.com, dwmw2@...radead.org
Cc:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, robh+dt@...nel.org,
	mark.rutland@....com, pawel.moll@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	dianders@...omium.org, heiko@...ech.de,
	Heiko Stuebner <heiko.stuebner@...com>
Subject: [PATCH v4 3/3] power: gpio-charger: do not use gpio value directly

From: Heiko Stuebner <heiko.stuebner@...com>

Some gpio implementations return interesting values for gpio_get_value when
the value is not 0 - as seen on a imx6sl board. Therefore do not use the
value returned from gpio_get_value directly but simply check for 0 or not 0.

Signed-off-by: Heiko Stuebner <heiko.stuebner@...com>
Reviewed-by: Doug Anderson <dianders@...omium.org>
Tested-by: Doug Anderson <dianders@...omium.org>
---
 drivers/power/gpio-charger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c
index 22f084a..7d4eab2 100644
--- a/drivers/power/gpio-charger.c
+++ b/drivers/power/gpio-charger.c
@@ -57,7 +57,7 @@ static int gpio_charger_get_property(struct power_supply *psy,
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_ONLINE:
-		val->intval = gpio_get_value_cansleep(pdata->gpio);
+		val->intval = !!gpio_get_value_cansleep(pdata->gpio);
 		val->intval ^= pdata->gpio_active_low;
 		break;
 	default:
-- 
2.1.0

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