From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Wed, 18 Aug 2021 11:11:24 +0000 (+0200)
Subject: iio: adc: max1027: Fix wrong shift with 12-bit devices
X-Git-Tag: v5.15-rc6~13^2~2^2~12
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=732ae19ee8f58ecaf30cbc1bbbda5cbee6a45043;p=users%2Fdwmw2%2Flinux.git

iio: adc: max1027: Fix wrong shift with 12-bit devices

10-bit devices must shift the value twice.
This is not needed anymore on 12-bit devices.

Fixes: ae47d009b508 ("iio: adc: max1027: Introduce 12-bit devices support")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20210818111139.330636-2-miquel.raynal@bootlin.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index 655ab02d03d84..4a42d140a4b06 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -103,7 +103,7 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids);
 			.sign = 'u',					\
 			.realbits = depth,				\
 			.storagebits = 16,				\
-			.shift = 2,					\
+			.shift = (depth == 10) ? 2 : 0,			\
 			.endianness = IIO_BE,				\
 		},							\
 	}