linux-kernel - [PATCH v1 01/11] iio: light: tsl2563: Do not hardcode interrupt trigger type

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Message-Id: <20221207190348.9347-1-andriy.shevchenko@linux.intel.com>
Date:   Wed,  7 Dec 2022 21:03:38 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Ferry Toth <ftoth@...londelft.nl>
Subject: [PATCH v1 01/11] iio: light: tsl2563: Do not hardcode interrupt trigger type

From: Ferry Toth <ftoth@...londelft.nl>

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@...londelft.nl>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/iio/light/tsl2563.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index d0e42b73203a..71302ae864d9 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -704,6 +704,7 @@ 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;
 
@@ -759,10 +760,15 @@ 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) {
-- 
2.35.1