linux-kernel - [PATCH v2 1/1] thermal: mt8173: minor mtk

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Message-ID: <1487680012-61948-2-git-send-email-dawei.chien@mediatek.com>
Date:   Tue, 21 Feb 2017 20:26:52 +0800
From:   Dawei Chien <dawei.chien@...iatek.com>
To:     Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
        Mark Rutland <mark.rutland@....com>,
        Ian Campbell <ijc+devicetree@...lion.org.uk>,
        Kumar Gala <galak@...eaurora.org>,
        Russell King <linux@...linux.org.uk>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fan Chen <fan.chen@...iatek.com>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        Erin Lo <erin.lo@...iatek.com>,
        Stable <stable@...r.kernel.org>,
        Dawei Chien <dawei.chien@...iatek.com>
Subject: [PATCH v2 1/1] thermal: mt8173: minor mtk_thermal.c cleanups

If thermal bank with 4 sensors, thermal driver should read TEMP_MSR3.

However, currently thermal driver would not read TEMP_MSR3 since mt8173
thermal driver only use 3 sensors on each thermal bank at the same time,
so this patch would not effect temperature.
Only if mt mt8173 thermal driver use 4 sensors on any thermal bank, would
read third sensor two times, and lose fourth sensor of vale.

cc: stable@...r.kernel.org
Fixes: b7cf0053738c ("thermal: Add Mediatek thermal driver for mt2701.")
Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>
Signed-off-by: Dawei Chien <dawei.chien@...iatek.com>
---
 drivers/thermal/mtk_thermal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 34169c3..c124151 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -191,7 +191,7 @@ struct mtk_thermal {
 };
 
 const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = {
-	TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR2
+	TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3
 };
 
 const int mt8173_adcpnp[MT8173_NUM_SENSORS_PER_ZONE] = {
-- 
1.9.1