From: Anand Moon <linux.amoon@gmail.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Daniel Lezcano <daniel.lezcano@kernel.org>,
Zhang Rui <rui.zhang@intel.com>,
Lukasz Luba <lukasz.luba@arm.com>,
Peter Griffin <peter.griffin@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
linux-samsung-soc@vger.kernel.org (open list:SAMSUNG THERMAL
DRIVER), linux-pm@vger.kernel.org (open list:THERMAL),
linux-kernel@vger.kernel.org (open list),
linux-arm-kernel@lists.infradead.org (moderated list:ARM/SAMSUNG
S3C, S5P AND EXYNOS ARM ARCHITECTURES)
Cc: Anand Moon <linux.amoon@gmail.com>
Subject: [PATCH v9 4/9] thermal/drivers/exynos: Fixed the efuse min max value for exynos5420
Date: Sun, 13 Sep 2026 20:28:32 +0530 [thread overview]
Message-ID: <20260913145905.9404-5-linux.amoon@gmail.com> (raw)
In-Reply-To: <20260913145905.9404-1-linux.amoon@gmail.com>
The Exynos5420 TMU uses a valid efuse range of 16 to 76 according to
the Exynos5422 user manual. The current driver incorrectly allows
values from 0 to 100 for Exynos5420 and Exynos5420_TRIMINFO.
Separate the Exynos5420 variants from Exynos4412, Exynos5250 and
Exynos5260 and use the correct 16 to 76 efuse range for them.
Keep the existing 40 to 100 range for Exynos4412, Exynos5250 and
Exynos5260.
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
drivers/thermal/samsung/exynos_tmu.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index a64b11e6acdc..a38b48e2236a 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -886,6 +886,22 @@ static int exynos_map_dt_data(struct platform_device *pdev)
case SOC_ARCH_EXYNOS4412:
case SOC_ARCH_EXYNOS5250:
case SOC_ARCH_EXYNOS5260:
+ data->tmu_set_low_temp = exynos4412_tmu_set_low_temp;
+ data->tmu_set_high_temp = exynos4412_tmu_set_high_temp;
+ data->tmu_disable_low = exynos4412_tmu_disable_low;
+ data->tmu_disable_high = exynos4210_tmu_disable_high;
+ data->tmu_set_crit_temp = exynos4412_tmu_set_crit_temp;
+ data->tmu_initialize = exynos4412_tmu_initialize;
+ data->tmu_control = exynos4210_tmu_control;
+ data->tmu_read = exynos4412_tmu_read;
+ data->tmu_set_emulation = exynos4412_tmu_set_emulation;
+ data->tmu_clear_irqs = exynos4210_tmu_clear_irqs;
+ data->gain = 8;
+ data->reference_voltage = 16;
+ data->efuse_value = 55;
+ data->min_efuse_value = 40;
+ data->max_efuse_value = 100;
+ break;
case SOC_ARCH_EXYNOS5420:
case SOC_ARCH_EXYNOS5420_TRIMINFO:
data->tmu_set_low_temp = exynos4412_tmu_set_low_temp;
@@ -901,12 +917,9 @@ static int exynos_map_dt_data(struct platform_device *pdev)
data->gain = 8;
data->reference_voltage = 16;
data->efuse_value = 55;
- if (data->soc != SOC_ARCH_EXYNOS5420 &&
- data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO)
- data->min_efuse_value = 40;
- else
- data->min_efuse_value = 0;
- data->max_efuse_value = 100;
+ /* Valid efuse range according to the Exynos5422 user manual. */
+ data->min_efuse_value = 16;
+ data->max_efuse_value = 76;
break;
case SOC_ARCH_EXYNOS5433:
data->tmu_set_low_temp = exynos5433_tmu_set_low_temp;
--
2.55.0
next prev parent reply other threads:[~2026-09-13 14:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-13 14:58 [PATCH v9 0/9] Exynos Thermal code improvement Anand Moon
2026-09-13 14:58 ` [PATCH v9 1/9] thermal/drivers/exynos: Optimize clock lifecycle with devm helpers Anand Moon
2026-09-13 14:58 ` [PATCH v9 2/9] thermal/drivers/exynos: Drop invalid IRQF_SHARED flag from TMU interrupts Anand Moon
2026-09-13 14:58 ` [PATCH v9 3/9] thermal/drivers/exynos: Handle optional triminfo clock correctly Anand Moon
2026-09-14 7:07 ` Krzysztof Kozlowski
2026-09-13 14:58 ` Anand Moon [this message]
2026-09-13 14:58 ` [PATCH v9 5/9] thermal/drivers/exynos: Remove redundant base_second register resource Anand Moon
2026-09-14 7:05 ` Krzysztof Kozlowski
2026-09-13 14:58 ` [PATCH v9 6/9] thermal/drivers/exynos: Use SoC-specific variant data to TMU configuration Anand Moon
2026-09-13 14:58 ` [PATCH v9 7/9] thermal/drivers/exynos: Move thermal zone ops to variant data Anand Moon
2026-09-13 14:58 ` [PATCH v9 8/9] thermal/drivers/exynos: Add missing drvdata assignment in Exynos TMU probe Anand Moon
2026-09-14 7:01 ` Krzysztof Kozlowski
2026-09-13 14:58 ` [PATCH v9 9/9] thermal/drivers/exynos: Select thermal emulation support Anand Moon
2026-09-14 7:00 ` Krzysztof Kozlowski
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