From: Patrik Dahlström <risca@dalakolonin.se>
Date: Sat, 8 Apr 2023 11:48:23 +0000 (+0200)
Subject: iio: adc: palmas: always reset events on unload
X-Git-Tag: v6.6.17~5000^2~33^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=773597aeee455d646bff12ce68a68884bc2d9113;p=platform%2Fkernel%2Flinux-rpi.git

iio: adc: palmas: always reset events on unload

This prevents leaving the adc in freerunning mode when removing the
driver.

Signed-off-by: Patrik Dahlström <risca@dalakolonin.se>
Link: https://lore.kernel.org/r/20230408114825.824505-8-risca@dalakolonin.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index 8c6ea4a..da49086 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -498,6 +498,13 @@ static int palmas_gpadc_get_adc_dt_data(struct platform_device *pdev,
 	return 0;
 }
 
+static void palmas_gpadc_reset(void *data)
+{
+	struct palmas_gpadc *adc = data;
+	if (adc->event0.enabled || adc->event1.enabled)
+		palmas_adc_reset_events(adc);
+}
+
 static int palmas_gpadc_probe(struct platform_device *pdev)
 {
 	struct palmas_gpadc *adc;
@@ -587,6 +594,10 @@ static int palmas_gpadc_probe(struct platform_device *pdev)
 			palmas_gpadc_calibrate(adc, i);
 	}
 
+	ret = devm_add_action(&pdev->dev, palmas_gpadc_reset, adc);
+	if (ret)
+		return ret;
+
 	return 0;
 }