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[198.48.202.89]) by smtp.gmail.com with ESMTPSA id s7sm4157855qkp.35.2021.06.07.07.47.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jun 2021 07:47:33 -0700 (PDT) From: Liam Beguin To: liambeguin@gmail.com, peda@axentia.se, jic23@kernel.org, lars@metafoo.de, pmeerw@pmeerw.net Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org Subject: [PATCH v2 6/8] iio: afe: rescale: add offset support Date: Mon, 7 Jun 2021 10:47:16 -0400 Message-Id: <20210607144718.1724413-7-liambeguin@gmail.com> X-Mailer: git-send-email 2.30.1.489.g328c10930387 In-Reply-To: <20210607144718.1724413-1-liambeguin@gmail.com> References: <20210607144718.1724413-1-liambeguin@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Liam Beguin This is a preparatory change required for the addition of temperature sensing front ends. Signed-off-by: Liam Beguin --- drivers/iio/afe/iio-rescale.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c index e34148d39b39..3d445c76dbb2 100644 --- a/drivers/iio/afe/iio-rescale.c +++ b/drivers/iio/afe/iio-rescale.c @@ -32,6 +32,7 @@ struct rescale { bool chan_processed; s32 numerator; s32 denominator; + s32 offset; }; static int rescale_read_raw(struct iio_dev *indio_dev, @@ -86,6 +87,10 @@ static int rescale_read_raw(struct iio_dev *indio_dev, default: return -EOPNOTSUPP; } + case IIO_CHAN_INFO_OFFSET: + *val = rescale->offset; + + return IIO_VAL_INT; default: return -EINVAL; } @@ -165,6 +170,9 @@ static int rescale_configure_channel(struct device *dev, chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE); + if (rescale->offset) + chan->info_mask_separate |= BIT(IIO_CHAN_INFO_OFFSET); + /* * Using .read_avail() is fringe to begin with and makes no sense * whatsoever for processed channels, so we make sure that this cannot @@ -329,6 +337,7 @@ static int rescale_probe(struct platform_device *pdev) rescale->cfg = of_device_get_match_data(dev); rescale->numerator = 1; rescale->denominator = 1; + rescale->offset = 0; ret = rescale->cfg->props(dev, rescale); if (ret)