From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andrew F. Davis" Subject: [PATCH v5 6/6] power: bq27xxx_battery: Add interrupt handling support Date: Tue, 22 Sep 2015 14:35:11 -0500 Message-ID: <1442950511-16122-7-git-send-email-afd@ti.com> References: <1442950511-16122-1-git-send-email-afd@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1442950511-16122-1-git-send-email-afd@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: =?UTF-8?q?Pali=20Roh=C3=A1r?= , Sebastian Reichel , Dmitry Eremin-Solenikov , David Woodhouse Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, "Andrew F. Davis" List-Id: linux-pm@vger.kernel.org Some devices have a pin that can generate an interrupt when the battery's status changes. Add an interrupt handler to read the new battery status. Signed-off-by: Andrew F. Davis --- drivers/power/bq27xxx_battery.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/power/bq27xxx_battery.c b/drivers/power/bq27xxx_battery.c index fe18a2d..473aa2f 100644 --- a/drivers/power/bq27xxx_battery.c +++ b/drivers/power/bq27xxx_battery.c @@ -48,6 +48,7 @@ #include #include #include +#include #include #include @@ -761,6 +762,15 @@ static void bq27xxx_battery_update(struct bq27xxx_device_info *di) di->last_update = jiffies; } +static irqreturn_t bq27xxx_battery_irq_handler_thread(int irq, void *data) +{ + struct bq27xxx_device_info *di = data; + + bq27xxx_battery_update(di); + + return IRQ_HANDLED; +} + static void bq27xxx_battery_poll(struct work_struct *work) { struct bq27xxx_device_info *di = @@ -1128,6 +1138,19 @@ static int bq27xxx_battery_i2c_probe(struct i2c_client *client, i2c_set_clientdata(client, di); + if (client->irq) { + retval = devm_request_threaded_irq(&client->dev, client->irq, + NULL, bq27xxx_battery_irq_handler_thread, + IRQF_ONESHOT, + name, di); + if (retval) { + dev_err(&client->dev, + "Unable to register IRQ %d error %d\n", + client->irq, retval); + return retval; + } + } + return 0; batt_failed: -- 1.9.1