From 12d74949133e2450533894ea01ce0c56646ce006 Mon Sep 17 00:00:00 2001 From: Mikko Koivunen Date: Thu, 18 May 2017 15:12:50 +0300 Subject: [PATCH] iio: light: rpr0521 poweroff for probe fails Set sensor measurement off after probe fail in pm_runtime_set_active() or iio_device_register(). Without this change sensor measurement stays on even though probe fails on these calls. This is maybe rare case, but causes constant power drain without any benefits when it happens. Power drain is 20-500uA, typically 180uA. Signed-off-by: Mikko Koivunen Acked-by: Daniel Baluta Signed-off-by: Jonathan Cameron --- drivers/iio/light/rpr0521.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c index 03504f6ecd3b..84d8d403e547 100644 --- a/drivers/iio/light/rpr0521.c +++ b/drivers/iio/light/rpr0521.c @@ -516,13 +516,26 @@ static int rpr0521_probe(struct i2c_client *client, ret = pm_runtime_set_active(&client->dev); if (ret < 0) - return ret; + goto err_poweroff; pm_runtime_enable(&client->dev); pm_runtime_set_autosuspend_delay(&client->dev, RPR0521_SLEEP_DELAY_MS); pm_runtime_use_autosuspend(&client->dev); - return iio_device_register(indio_dev); + ret = iio_device_register(indio_dev); + if (ret) + goto err_pm_disable; + + return 0; + +err_pm_disable: + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + pm_runtime_put_noidle(&client->dev); +err_poweroff: + rpr0521_poweroff(data); + + return ret; } static int rpr0521_remove(struct i2c_client *client) -- 2.20.1