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Message-Id: <1576075099-3441-13-git-send-email-akinobu.mita@gmail.com>
Date:   Wed, 11 Dec 2019 23:38:19 +0900
From:   Akinobu Mita <akinobu.mita@...il.com>
To:     linux-nvme@...ts.infradead.org, linux-hwmon@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-wireless@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Akinobu Mita <akinobu.mita@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>
Subject: [PATCH v3 12/12] iio: adc: qcom-vadc-common: use <linux/units.h> helpers

This switches the qcom-vadc-common to use milli_kelvin_to_millicelsius()
in <linux/units.h>.

Cc: Jonathan Cameron <jic23@...nel.org>
Cc: Hartmut Knaack <knaack.h@....de>
Cc: Lars-Peter Clausen <lars@...afoo.de>
Cc: Peter Meerwald-Stadler <pmeerw@...erw.net>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
---
* New patch from v3

 drivers/iio/adc/qcom-vadc-common.c | 6 +++---
 drivers/iio/adc/qcom-vadc-common.h | 1 -
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index dcd7fb5..2bb78d1 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -6,6 +6,7 @@
 #include <linux/log2.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/units.h>
 
 #include "qcom-vadc-common.h"
 
@@ -236,8 +237,7 @@ static int qcom_vadc_scale_die_temp(const struct vadc_linear_graph *calib_graph,
 		voltage = 0;
 	}
 
-	voltage -= KELVINMIL_CELSIUSMIL;
-	*result_mdec = voltage;
+	*result_mdec = milli_kelvin_to_millicelsius(voltage);
 
 	return 0;
 }
@@ -325,7 +325,7 @@ static int qcom_vadc_scale_hw_calib_die_temp(
 {
 	*result_mdec = qcom_vadc_scale_code_voltage_factor(adc_code,
 				prescale, data, 2);
-	*result_mdec -= KELVINMIL_CELSIUSMIL;
+	*result_mdec = milli_kelvin_to_millicelsius(*result_mdec);
 
 	return 0;
 }
diff --git a/drivers/iio/adc/qcom-vadc-common.h b/drivers/iio/adc/qcom-vadc-common.h
index bbb1fa0..e074902a 100644
--- a/drivers/iio/adc/qcom-vadc-common.h
+++ b/drivers/iio/adc/qcom-vadc-common.h
@@ -38,7 +38,6 @@
 #define VADC_AVG_SAMPLES_MAX			512
 #define ADC5_AVG_SAMPLES_MAX			16
 
-#define KELVINMIL_CELSIUSMIL			273150
 #define PMIC5_CHG_TEMP_SCALE_FACTOR		377500
 #define PMIC5_SMB_TEMP_CONSTANT			419400
 #define PMIC5_SMB_TEMP_SCALE_FACTOR		356
-- 
2.7.4

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