[PATCH v9 4/9] thermal/drivers/exynos: Fixed the efuse min max value for exynos5420
From: Anand Moon <hidden>
Date: 2026-09-13 14:59:56
Also in:
linux-pm, linux-samsung-soc, lkml
Subsystem:
samsung thermal driver, the rest, thermal · Maintainers:
Bartlomiej Zolnierkiewicz, Krzysztof Kozlowski, Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
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 <redacted> --- 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