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power_supply: tps65217-charger: Add support for IRQs

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Make use of IRQ resources defined in tps65217 mfd code. If they are valid
we use them instead separate poll task, in order to define AC power state.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Marcin Niestroj 2016-06-20 12:50:54 +02:00 committed by Sebastian Reichel
parent f333253246
commit 47d7d5ed68
1 changed files with 33 additions and 7 deletions
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28
drivers/power/supply/tps65217_charger.c
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@ -46,6 +46,8 @@ struct tps65217_charger {
int prev_ac_online;
struct task_struct *poll_task;
int irq;
};
static enum power_supply_property tps65217_ac_props[] = {
@ -198,6 +200,7 @@ static int tps65217_charger_probe(struct platform_device *pdev)
struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65217_charger *charger;
struct power_supply_config cfg = {};
int irq;
int ret;
dev_dbg(&pdev->dev, "%s\n", __func__);
@ -220,19 +223,41 @@ static int tps65217_charger_probe(struct platform_device *pdev)
return PTR_ERR(charger->ac);
}
irq = platform_get_irq_byname(pdev, "AC");
if (irq < 0)
irq = -ENXIO;
charger->irq = irq;
ret = tps65217_config_charger(charger);
if (ret < 0) {
dev_err(charger->dev, "charger config failed, err %d\n", ret);
return ret;
}
if (irq != -ENXIO) {
ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
tps65217_charger_irq,
0, "tps65217-charger",
charger);
if (ret) {
dev_err(charger->dev,
"Unable to register irq %d err %d\n", irq,
ret);
return ret;
}
/* Check current state */
tps65217_charger_irq(irq, charger);
} else {
charger->poll_task = kthread_run(tps65217_charger_poll_task,
charger, "ktps65217charger");
if (IS_ERR(charger->poll_task)) {
ret = PTR_ERR(charger->poll_task);
dev_err(charger->dev, "Unable to run kthread err %d\n", ret);
dev_err(charger->dev,
"Unable to run kthread err %d\n", ret);
return ret;
}
}
return 0;
}
@ -241,6 +266,7 @@ static int tps65217_charger_remove(struct platform_device *pdev)
{
struct tps65217_charger *charger = platform_get_drvdata(pdev);
if (charger->irq == -ENXIO)
kthread_stop(charger->poll_task);
return 0;