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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: 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>
Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org,
	devicetree@vger.kernel.org, linux-iio@vger.kernel.org,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Jishnu Prakash <jprakash@qti.qualcomm.com>
Subject: [PATCH v9 10/15] iio: adc: qcom-vadc-common: simplify qcom_vadc_map_voltage_temp
Date: Mon,  2 Nov 2020 20:49:45 +0300
Message-ID: <20201102174950.1148498-11-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20201102174950.1148498-1-dmitry.baryshkov@linaro.org>

All volt-temp tables here are sorted in descending order. There is no
need to accout for (unused) ascending table sorting case, so simplify
the conversion function.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/iio/adc/qcom-vadc-common.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index 0c705bb473fe..441843827f05 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -346,38 +346,19 @@ static struct qcom_adc5_scale_type scale_adc5_fn[] = {
 static int qcom_vadc_map_voltage_temp(const struct vadc_map_pt *pts,
 				      u32 tablesize, s32 input, int *output)
 {
-	bool descending = 1;
 	u32 i = 0;
 
 	if (!pts)
 		return -EINVAL;
 
-	/* Check if table is descending or ascending */
-	if (tablesize > 1) {
-		if (pts[0].x < pts[1].x)
-			descending = 0;
-	}
-
-	while (i < tablesize) {
-		if ((descending) && (pts[i].x < input)) {
-			/* table entry is less than measured*/
-			 /* value and table is descending, stop */
-			break;
-		} else if ((!descending) &&
-				(pts[i].x > input)) {
-			/* table entry is greater than measured*/
-			/*value and table is ascending, stop */
-			break;
-		}
+	while (i < tablesize && pts[i].x > input)
 		i++;
-	}
 
 	if (i == 0) {
 		*output = pts[0].y;
 	} else if (i == tablesize) {
 		*output = pts[tablesize - 1].y;
 	} else {
-		/* result is between search_index and search_index-1 */
 		/* interpolate linearly */
 		*output = fixp_linear_interpolate(pts[i - 1].x, pts[i - 1].y,
 						  pts[i].x, pts[i].y,
-- 
2.28.0


  parent reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-02 17:49 [PATCH v9 00/15] qcom: pm8150: add support for thermal monitoring Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 01/15] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Dmitry Baryshkov
2020-11-04 18:32   ` Rob Herring
2020-11-08 15:52     ` Jonathan Cameron
2020-11-02 17:49 ` [PATCH v9 02/15] fixp-arith: add a linear interpolation function Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 03/15] iio: adc: qcom-vadc: move several adc5 functions to common file Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 04/15] iio: adc: qcom-vadc-common: use fixp_linear_interpolate Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 05/15] iio: adc: move qcom-vadc-common.h to include dir Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 06/15] iio: adc: qcom-spmi-adc5: use of_device_get_match_data Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 07/15] iio: provide of_iio_channel_get_by_name() and devm_ version it Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 08/15] iio: adc: move vadc_map_pt from header to the source file Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 09/15] iio: adc: qcom-vadc-common: rewrite vadc7 die temp calculation Dmitry Baryshkov
2020-11-02 17:49 ` Dmitry Baryshkov [this message]
2020-11-02 17:49 ` [PATCH v9 11/15] iio: adc: qcom-vadc-common: scale adcmap_100k_104ef_104fb Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 12/15] thermal: qcom: add support for adc-tm5 PMIC thermal monitor Dmitry Baryshkov
2020-11-19 15:33   ` Daniel Lezcano
2020-11-20 22:35     ` Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 13/15] arm64: dts: qcom: pm8150x: add definitions for adc-tm5 part Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 14/15] arm64: dts: sm8250-mtp: add thermal zones using pmic's adc-tm5 Dmitry Baryshkov
2020-11-02 17:49 ` [PATCH v9 15/15] arm64: dts: qrb5165-rb5: port thermal zone definitions Dmitry Baryshkov
2020-11-12 11:39 ` [PATCH v9 00/15] qcom: pm8150: add support for thermal monitoring Daniel Lezcano
2020-11-12 12:41   ` Dmitry Baryshkov
2020-11-12 13:13     ` Daniel Lezcano
2020-11-19 14:42       ` Dmitry Baryshkov

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