linux-kernel - [PATCH v1 19/24] drivers: thermal: tsens: Common get

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <187981aec80d2695c6cb4765600d2fe979122805.1549525708.git.amit.kucheria@linaro.org>
Date:   Thu,  7 Feb 2019 16:19:37 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        bjorn.andersson@...aro.org, edubezval@...il.com,
        andy.gross@...aro.org, Daniel Lezcano <daniel.lezcano@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>
Cc:     linux-pm@...r.kernel.org
Subject: [PATCH v1 19/24] drivers: thermal: tsens: Common get_temp() learns to do ADC conversion

get_temp() learns to return temperature regardless of whether it is
returned as ADC code or direct temperature.

Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
---
 drivers/thermal/qcom/tsens-common.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/qcom/tsens-common.c b/drivers/thermal/qcom/tsens-common.c
index ed975a2430d9..a935d2335eea 100644
--- a/drivers/thermal/qcom/tsens-common.c
+++ b/drivers/thermal/qcom/tsens-common.c
@@ -129,10 +129,15 @@ int get_temp_tsens_valid(struct tsens_priv *priv, int i, int *temp)
 	if (ret)
 		return ret;
 
-	mask = GENMASK(priv->fields[LAST_TEMP_0].msb,
-		       priv->fields[LAST_TEMP_0].lsb);
-	/* Convert temperature from deciCelsius to milliCelsius */
-	*temp = sign_extend32(last_temp, fls(mask) - 1) * 100;
+	if (priv->feat->adc) {
+		/* Convert temperature from ADC code to milliCelsius */
+		*temp = code_to_degc(last_temp, s) * 1000;
+	} else {
+		mask = GENMASK(priv->fields[LAST_TEMP_0].msb,
+			       priv->fields[LAST_TEMP_0].lsb);
+		/* Convert temperature from deciCelsius to milliCelsius */
+		*temp = sign_extend32(last_temp, fls(mask) - 1) * 100;
+	}
 
 	return 0;
 }
-- 
2.17.1