linux-kernel - [RFC] thermal/drivers/mediatek: fix temperature on mt7986

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Message-Id: <20230901063730.7577-1-linux@fw-web.de>
Date:   Fri,  1 Sep 2023 08:37:30 +0200
From:   Frank Wunderlich <linux@...web.de>
To:     linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Amjad Ouled-Ameur <aouledameur@...libre.com>,
        Daniel Golle <daniel@...rotopia.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        stable@...r.kernel.org
Subject: [RFC] thermal/drivers/mediatek: fix temperature on mt7986

From: Frank Wunderlich <frank-w@...lic-files.de>

Reading thermal sensor on mt7986 devices returns invalid temperature:

bpi-r3 ~ # cat /sys/class/thermal/thermal_zone0/temp
 -274000

Fix this by adding missing members in mtk_thermal_data struct which were
used in mtk_thermal_turn_on_buffer after commit 33140e668b10.

Cc: stable@...r.kernel.org
Fixes: 33140e668b10 ("thermal/drivers/mediatek: Control buffer enablement tweaks")
Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 drivers/thermal/mediatek/auxadc_thermal.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/thermal/mediatek/auxadc_thermal.c b/drivers/thermal/mediatek/auxadc_thermal.c
index f59d36de20a0..ed08767eaa60 100644
--- a/drivers/thermal/mediatek/auxadc_thermal.c
+++ b/drivers/thermal/mediatek/auxadc_thermal.c
@@ -691,6 +691,9 @@ static const struct mtk_thermal_data mt7986_thermal_data = {
 	.adcpnp = mt7986_adcpnp,
 	.sensor_mux_values = mt7986_mux_values,
 	.version = MTK_THERMAL_V3,
+	.apmixed_buffer_ctl_reg = APMIXED_SYS_TS_CON1,
+	.apmixed_buffer_ctl_mask = GENMASK(31, 6) | BIT(3),
+	.apmixed_buffer_ctl_set = BIT(0),
 };
 
 static bool mtk_thermal_temp_is_valid(int temp)
-- 
2.34.1