linux-kernel - [thermal PATCH v15 1/9] drivers: thermal: tsens: Don't hardcode sensor slope

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Message-Id: <20210420183343.2272-2-ansuelsmth@gmail.com>
Date:   Tue, 20 Apr 2021 20:33:35 +0200
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     Ansuel Smith <ansuelsmth@...il.com>,
        Thara Gopinath <thara.gopinath@...aro.org>,
        Amit Kucheria <amit.kucheria@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Rob Herring <robh+dt@...nel.org>, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [thermal PATCH v15 1/9] drivers: thermal: tsens: Don't hardcode sensor slope

Function compute_intercept_slope hardcode the sensor slope to
SLOPE_DEFAULT. Change this and use the default value only if a slope is
not defined. This is needed for tsens VER_0 that has a hardcoded slope
table.

Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
Reviewed-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 drivers/thermal/qcom/tsens.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 8d3e94d2a..562c438ff 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -85,7 +85,8 @@ void compute_intercept_slope(struct tsens_priv *priv, u32 *p1,
 			"%s: sensor%d - data_point1:%#x data_point2:%#x\n",
 			__func__, i, p1[i], p2[i]);
 
-		priv->sensor[i].slope = SLOPE_DEFAULT;
+		if (!priv->sensor[i].slope)
+			priv->sensor[i].slope = SLOPE_DEFAULT;
 		if (mode == TWO_PT_CALIB) {
 			/*
 			 * slope (m) = adc_code2 - adc_code1 (y2 - y1)/
-- 
2.30.2