linux-kernel - [PATCH v3 3/4] drivers/thermal/exymos: Fixed the efuse min max value for exynos5422

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Message-ID: <20250216195850.5352-4-linux.amoon@gmail.com>
Date: Mon, 17 Feb 2025 01:28:36 +0530
From: Anand Moon <linux.amoon@...il.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>,
	Lukasz Luba <lukasz.luba@....com>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	linux-pm@...r.kernel.org (open list:SAMSUNG THERMAL DRIVER),
	linux-samsung-soc@...r.kernel.org (open list:SAMSUNG THERMAL DRIVER),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES),
	linux-kernel@...r.kernel.org (open list)
Cc: Anand Moon <linux.amoon@...il.com>
Subject: [PATCH v3 3/4] drivers/thermal/exymos: Fixed the efuse min max value for exynos5422

As per Exynos5422 user manual e-Fuse range min~max range is 16~76.
if e-Fuse value is out of this range, then thermal sensor may not
sense thermal data properly. Refactors the efuse value
initialization logic within exynos_map_dt_data function by
replacing the nested if-else statements with a switch statement.
Ensures proper initialization of efuse values based on the SOC type.

Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
v3: improve the commit message, fixing the warning wtth W=1
---
 drivers/thermal/samsung/exynos_tmu.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 8d26000c73aa..fe090c1a93ab 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -899,12 +899,23 @@ 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->max_efuse_value = 100;
+		switch (data->soc) {
+		case SOC_ARCH_EXYNOS3250:
+		case SOC_ARCH_EXYNOS4412:
+		case SOC_ARCH_EXYNOS5250:
+		case SOC_ARCH_EXYNOS5260:
 			data->min_efuse_value = 40;
-		else
+			break;
+		case SOC_ARCH_EXYNOS5420:
+		case SOC_ARCH_EXYNOS5420_TRIMINFO:
+			data->min_efuse_value = 16;
+			data->max_efuse_value = 76;
+			break;
+		default:
 			data->min_efuse_value = 0;
-		data->max_efuse_value = 100;
+			break;
+		}
 		break;
 	case SOC_ARCH_EXYNOS5433:
 		data->tmu_set_low_temp = exynos5433_tmu_set_low_temp;
-- 
2.48.1