From: Vitaliy Sochnev <sochnev.v.74@gmail.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>
Cc: Zhang Rui <rui.zhang@intel.com>,
Lukasz Luba <lukasz.luba@arm.com>,
Christian Marangi <ansuelsmth@gmail.com>,
Lorenzo Bianconi <lorenzo@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Vitaliy Sochnev <sochnev.v.74@gmail.com>
Subject: [PATCH 1/4] thermal/drivers/airoha: Fix AN7583 ADC mux field mapping
Date: Sun, 13 Sep 2026 15:52:23 +0100 [thread overview]
Message-ID: <20260913145226.34643-2-sochnev.v.74@gmail.com> (raw)
In-Reply-To: <20260913145226.34643-1-sochnev.v.74@gmail.com>
On AN7583, bits 3:1 of 0x2e4 select the sensor (0 bandgap, 5 GbE, 6 CPU)
and bits 3:2 of 0x2a0 select the diode (0 D0, 1 ZERO, 2 D1). The driver
names them the other way round: MUX_TADC is 0x2e4, MUX_SENSOR is 0x2a0.
v5 of the AN7583 series swapped the airoha_set_thermal_mux() arguments
to match these names. The diode index now goes to the sensor selector,
so the zone reads mux positions 1, 0 and 2 (PAD_AVS, bandgap, core
voltage) instead of the bandgap diodes. On a Nokia XG-040G-MF the result
crosses the critical trip and the board powers off during boot.
Swap the field definitions. MUX_TADC then selects the diode, as on
EN7581, and the existing call order is correct.
Fixes: b20d9782756a ("thermal/drivers/airoha: Add support for AN7583 Thermal Sensor")
Signed-off-by: Vitaliy Sochnev <sochnev.v.74@gmail.com>
---
drivers/thermal/airoha_thermal.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/thermal/airoha_thermal.c b/drivers/thermal/airoha_thermal.c
index 77b3a1af271f..2934d6aba0ed 100644
--- a/drivers/thermal/airoha_thermal.c
+++ b/drivers/thermal/airoha_thermal.c
@@ -18,10 +18,10 @@
#define EN7581_DOUT_TADC 0x2f8
#define EN7581_DOUT_TADC_MASK GENMASK(15, 0)
-#define AN7583_MUX_SENSOR 0x2a0
+#define AN7583_MUX_TADC 0x2a0
#define AN7583_LOAD_ADJ GENMASK(3, 2)
-#define AN7583_MUX_TADC 0x2e4
-#define AN7583_MUX_TADC_MASK GENMASK(3, 1)
+#define AN7583_MUX_SENSOR 0x2e4
+#define AN7583_MUX_SENSOR_MASK GENMASK(3, 1)
#define AN7583_DOUT_TADC 0x2f0
/* PTP_THERMAL regs */
@@ -634,8 +634,8 @@ static const struct thermal_zone_device_ops an7583_tz_ops = {
static const struct reg_field an7583_chip_scu_fields[AIROHA_THERMAL_FIELD_MAX] = {
[AIROHA_THERMAL_DOUT_TADC] = REG_FIELD(AN7583_DOUT_TADC, 0, 31),
- [AIROHA_THERMAL_MUX_TADC] = REG_FIELD(AN7583_MUX_TADC, 1, 3),
- [AIROHA_THERMAL_MUX_SENSOR] = REG_FIELD(AN7583_MUX_SENSOR, 2, 3),
+ [AIROHA_THERMAL_MUX_TADC] = REG_FIELD(AN7583_MUX_TADC, 2, 3),
+ [AIROHA_THERMAL_MUX_SENSOR] = REG_FIELD(AN7583_MUX_SENSOR, 1, 3),
};
static int an7583_thermal_probe(struct platform_device *pdev,
--
2.55.0
next prev parent reply other threads:[~2026-09-13 12:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-13 14:52 [PATCH 0/4] thermal/drivers/airoha: Fix AN7583 mux mapping and expose all sensors Vitaliy Sochnev
2026-09-13 14:52 ` Vitaliy Sochnev [this message]
2026-09-13 14:52 ` [PATCH 2/4] thermal/drivers/airoha: Serialise access to the shared ADC Vitaliy Sochnev
2026-09-13 14:52 ` [PATCH 3/4] dt-bindings: arm: airoha: Allow one thermal sensor cell for AN7583 Vitaliy Sochnev
2026-09-13 14:52 ` [PATCH 4/4] thermal/drivers/airoha: Register a thermal zone per AN7583 sensor Vitaliy Sochnev
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