From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Amit Kucheria <amitk@kernel.org>,
Jonathan Cameron <jic23@kernel.org>,
Hartmut Knaack <knaack.h@gmx.de>,
Lars-Peter Clausen <lars@metafoo.de>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
linux-arm-msm@vger.kernel.org,
Linux PM <linux-pm@vger.kernel.org>,
devicetree <devicetree@vger.kernel.org>,
linux-iio <linux-iio@vger.kernel.org>
Subject: Re: [PATCH v2 4/9] iio: adc: qcom-vadc-common: use fixp_linear_interpolate
Date: Thu, 3 Sep 2020 22:38:18 +0300 [thread overview]
Message-ID: <CAHp75Vf0yz1U3W03YEths5Eay7dOY10JGC6QqRkekZQx3MdRtg@mail.gmail.com> (raw)
In-Reply-To: <20200903132109.1914011-5-dmitry.baryshkov@linaro.org>
On Thu, Sep 3, 2020 at 5:33 PM Dmitry Baryshkov
<dmitry.baryshkov@linaro.org> wrote:
>
> Use new function fixp_linear_interpolate() instead of hand-coding the
> linar interpolation.
...
> /* result is between search_index and search_index-1 */
> /* interpolate linearly */
> - *output = (((s32)((pts[i].y - pts[i - 1].y) *
> - (input - pts[i - 1].x)) /
> - (pts[i].x - pts[i - 1].x)) +
> - pts[i - 1].y);
> + *output = fixp_linear_interpolate(pts[i - 1].x, pts[i - 1].y,
> + pts[i].x, pts[i].y,
> + input);
I'm wondering if it's related to linear_range.h API
https://elixir.bootlin.com/linux/latest/source/include/linux/linear_range.h
> }
>
> return 0;
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-09-03 19:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 13:21 [PATCH v2 0/0] qcom: pm8150: add support for thermal monitoring Dmitry Baryshkov
2020-09-03 13:21 ` [PATCH v2 1/9] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Dmitry Baryshkov
2020-09-03 16:34 ` Rob Herring
2020-09-06 14:14 ` Jonathan Cameron
2020-09-03 13:21 ` [PATCH v2 2/9] fixp-arith: add a linear interpolation function Dmitry Baryshkov
2020-09-03 13:21 ` [PATCH v2 3/9] iio: adc: qcom-vadc: move several adc5 functions to common file Dmitry Baryshkov
2020-09-06 14:18 ` Jonathan Cameron
2020-09-03 13:21 ` [PATCH v2 4/9] iio: adc: qcom-vadc-common: use fixp_linear_interpolate Dmitry Baryshkov
2020-09-03 19:38 ` Andy Shevchenko [this message]
2020-09-06 14:23 ` Jonathan Cameron
2020-09-03 13:21 ` [PATCH v2 5/9] iio: adc: qcom-spmi-adc5: fix driver name Dmitry Baryshkov
2020-09-04 11:14 ` Manivannan Sadhasivam
2020-09-06 14:24 ` Jonathan Cameron
2020-09-03 13:21 ` [PATCH v2 6/9] iio: adc: qcom-spmi-adc5: use of_device_get_match_data Dmitry Baryshkov
2020-09-04 11:12 ` Manivannan Sadhasivam
2020-09-03 13:21 ` [PATCH v2 7/9] thermal: qcom: add support for adc-tm5 PMIC thermal monitor Dmitry Baryshkov
2020-09-06 14:45 ` Jonathan Cameron
2020-09-03 13:21 ` [PATCH v2 8/9] arm64: dts: qcom: pm8150x: add definitions for adc-tm5 part Dmitry Baryshkov
2020-09-03 13:21 ` [PATCH v2 9/9] arm64: dts: sm8250-mtp: add thermal zones using pmic's adc-tm5 Dmitry Baryshkov
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