From: Shrikant Raskar <raskar.shree97@gmail.com>
Date: Wed, 28 Jan 2026 17:51:49 +0000 (+0530)
Subject: iio: proximity: rfd77402: Align polling timeout with datasheet
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36bff1842330b3eddaf5a7977eb00a724fc42c27;p=thirdparty%2Fkernel%2Flinux.git

iio: proximity: rfd77402: Align polling timeout with datasheet

Update the polling delay to use a 100 ms timeout, as specified
in the RFD77402 datasheet.

Signed-off-by: Shrikant Raskar <raskar.shree97@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/proximity/rfd77402.c b/drivers/iio/proximity/rfd77402.c
index 4499939215e7..6cae805632a2 100644
--- a/drivers/iio/proximity/rfd77402.c
+++ b/drivers/iio/proximity/rfd77402.c
@@ -132,7 +132,11 @@ static int rfd77402_measure(struct i2c_client *client)
 			goto err;
 		if (ret & RFD77402_ICSR_RESULT)
 			break;
-		msleep(20);
+		/*
+		 * As per RFD77402 datasheet section '3.1.1 Single Measure',
+		 * the suggested timeout value for single measure is 100ms.
+		 */
+		msleep(10);
 	}
 
 	if (tries < 0) {