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[82.209.154.112]) by smtp.gmail.com with ESMTPSA id s18-20020a056512203200b004786d37229csm1039673lfs.155.2022.07.22.06.03.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Jul 2022 06:03:59 -0700 (PDT) From: Marcus Folkesson To: Marcus Folkesson , Kent Gustavsson , Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Andy Shevchenko Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/9] iio: adc: mcp3911: make use of the sign bit Date: Fri, 22 Jul 2022 15:07:18 +0200 Message-Id: <20220722130726.7627-2-marcus.folkesson@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220722130726.7627-1-marcus.folkesson@gmail.com> References: <20220722130726.7627-1-marcus.folkesson@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The device supports negative values as well. Fixes: 3a89b289df5d ("iio: adc: add support for mcp3911") Signed-off-by: Marcus Folkesson Reviewed-by: Andy Shevchenko --- 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 1cb4590fe412..f581cefb6719 100644 --- a/drivers/iio/adc/mcp3911.c +++ b/drivers/iio/adc/mcp3911.c @@ -113,6 +113,8 @@ 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