From: Marcus Folkesson <marcus.folkesson@gmail.com>
To: Marcus Folkesson <marcus.folkesson@gmail.com>,
Kent Gustavsson <kent@minoris.se>,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 09/10] iio: adc: mcp3911: make use of the sign bit
Date: Thu, 23 Jun 2022 19:08:43 +0200 [thread overview]
Message-ID: <20220623170844.2189814-9-marcus.folkesson@gmail.com> (raw)
In-Reply-To: <20220623170844.2189814-1-marcus.folkesson@gmail.com>
The device supports negative values as well.
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---
drivers/iio/adc/mcp3911.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iio/adc/mcp3911.c b/drivers/iio/adc/mcp3911.c
index aefc5eac874c..084f6d1aa6d1 100644
--- a/drivers/iio/adc/mcp3911.c
+++ b/drivers/iio/adc/mcp3911.c
@@ -144,6 +144,8 @@ static int mcp3911_read_raw(struct iio_dev *indio_dev,
if (ret)
goto out;
+ *val = sign_extend32(*val, 23);
+
ret = IIO_VAL_INT;
break;
--
2.36.1
next prev parent reply other threads:[~2022-06-23 17:40 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-23 17:08 [PATCH 01/10] iio: adc: mcp3911: correct "microchip,device-addr" property Marcus Folkesson
2022-06-23 17:08 ` [PATCH 02/10] iio: adc: mcp3911: use resource-managed version of iio_device_register Marcus Folkesson
2022-06-23 19:01 ` Andy Shevchenko
2022-06-24 6:29 ` Marcus Folkesson
2022-06-25 11:24 ` Jonathan Cameron
2022-06-28 12:01 ` Andy Shevchenko
2022-06-23 17:08 ` [PATCH 03/10] iio: adc: mcp3911: add support for buffers Marcus Folkesson
2022-06-23 17:08 ` [PATCH 04/10] iio: adc: mcp3911: add support for interrupts Marcus Folkesson
2022-06-23 19:04 ` Andy Shevchenko
2022-06-24 12:01 ` Marcus Folkesson
2022-06-23 17:08 ` [PATCH 05/10] dt-bindings: iio: adc: mcp3911: add microchip,data-ready-hiz entry Marcus Folkesson
2022-06-24 9:54 ` Krzysztof Kozlowski
2022-06-24 12:10 ` Marcus Folkesson
2022-06-24 17:26 ` Rob Herring
2022-06-23 17:08 ` [PATCH 06/10] iio: adc: mcp3911: add support for oversampling ratio Marcus Folkesson
2022-06-23 19:20 ` Andy Shevchenko
2022-06-24 12:09 ` Marcus Folkesson
2022-06-28 11:56 ` Andy Shevchenko
2022-06-23 17:08 ` [PATCH 07/10] iio: adc: mcp3911: use correct formula for AD conversion Marcus Folkesson
2022-06-23 17:08 ` [PATCH 08/10] iio: adc: mcp3911: add support for phase Marcus Folkesson
2022-06-23 19:07 ` Andy Shevchenko
2022-06-24 12:02 ` Marcus Folkesson
2022-06-25 11:33 ` Jonathan Cameron
2022-06-23 17:08 ` Marcus Folkesson [this message]
2022-06-23 17:08 ` [PATCH 10/10] iio: adc: mcp3911: add support to set PGA Marcus Folkesson
2022-06-23 17:26 ` Marcus Folkesson
2022-06-23 19:15 ` Andy Shevchenko
2022-06-24 12:05 ` Marcus Folkesson
2022-06-23 18:59 ` [PATCH 01/10] iio: adc: mcp3911: correct "microchip,device-addr" property Andy Shevchenko
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