iio: light: tsl2563: Do not hardcode interrupt trigger type

[ Upstream commit 027641b52fe37b64af61025298ce160c8b9b7a73 ]

Instead of hardcoding IRQ trigger type to IRQF_TRIGGER_RAISING,
let's respect the settings specified in the firmware description.
To be compatible with the older firmware descriptions, if trigger
type is not set up there, we'll set it to default (raising edge).

Fixes: 388be4883952 ("staging:iio: tsl2563 abi fixes and interrupt handling")
Fixes: bdab1001738f ("staging:iio:light:tsl2563 remove old style event registration.")
Signed-off-by: Ferry Toth <ftoth@exalondelft.nl>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221207190348.9347-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index 5bf2bfbc5379eb013ef373351ace384afcecb317..af616352fe71562dc9a468dacf613f583ace153d 100644 (file)
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -705,6 +705,7 @@ static int tsl2563_probe(struct i2c_client *client,
        struct iio_dev *indio_dev;
        struct tsl2563_chip *chip;
        struct tsl2563_platform_data *pdata = client->dev.platform_data;
+       unsigned long irq_flags;
        int err = 0;
        u8 id = 0;
 
@@ -760,10 +761,15 @@ static int tsl2563_probe(struct i2c_client *client,
                indio_dev->info = &tsl2563_info_no_irq;
 
        if (client->irq) {
+               irq_flags = irq_get_trigger_type(client->irq);
+               if (irq_flags == IRQF_TRIGGER_NONE)
+                       irq_flags = IRQF_TRIGGER_RISING;
+               irq_flags |= IRQF_ONESHOT;
+
                err = devm_request_threaded_irq(&client->dev, client->irq,
                                           NULL,
                                           &tsl2563_event_handler,
-                                          IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+                                          irq_flags,
                                           "tsl2563_event",
                                           indio_dev);
                if (err) {