linux-kernel - [PATCH] power: bq24190_charger: Fix charge type sysfs property

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Date:	Mon, 3 Aug 2015 16:10:34 -0500
From:	Andreas Dannenberg <dannenberg@...com>
To:	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>
CC:	<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Andreas Dannenberg <dannenberg@...com>
Subject: [PATCH] power: bq24190_charger: Fix charge type sysfs property

Access to the BQ24190's configurable charge type property (none, trickle,
fast) is being masked by an incorrect power_supply_property entry. After
applying this patch a new 'charge_type' property will appear in the
bq24190-charger sysfs folder backed up by getters/setters already
present in the driver.

Signed-off-by: Andreas Dannenberg <dannenberg@...com>
---
The current driver incorrectly tries to declare the charge type property
using POWER_SUPPLY_PROP_TYPE which is the wrong declaration for this
(actually POWER_SUPPLY_PROP_TYPE itself has been superseeded by
power_supply.type and isn't even used anymore as part of the power
supply property declarations).

After implementing the fix tested this aspect of the driver using an
actual BQ24190 device and could witness the impact the change of charge
type has on the battery (writing '1' to the new sysfs property means
charging off, '2' will do trickle charging, and '3' will result in
fast charging).


 drivers/power/bq24190_charger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/bq24190_charger.c b/drivers/power/bq24190_charger.c
index 052db78..40ae47c 100644
--- a/drivers/power/bq24190_charger.c
+++ b/drivers/power/bq24190_charger.c
@@ -902,7 +902,7 @@ static int bq24190_charger_property_is_writeable(struct power_supply *psy,
 }
 
 static enum power_supply_property bq24190_charger_properties[] = {
-	POWER_SUPPLY_PROP_TYPE,
+	POWER_SUPPLY_PROP_CHARGE_TYPE,
 	POWER_SUPPLY_PROP_HEALTH,
 	POWER_SUPPLY_PROP_ONLINE,
 	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
-- 
1.9.1

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