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From: Hsin-Te Yuan <yuanhsinte@chromium.org>
Date: Wed, 10 Apr 2024 10:06:04 +0000
Subject: [PATCH] thermal/drivers/mediatek/lvts_thermal: Add coeff for
 mt8192
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Message-Id: <20240410-lvts_thermal-v1-1-ee50b29c1756@chromium.org>
To: "Rafael J. Wysocki" <rafael@kernel.org>, 
 Daniel Lezcano <daniel.lezcano@linaro.org>, Zhang Rui <rui.zhang@intel.com>, 
 Lukasz Luba <lukasz.luba@arm.com>, 
 Matthias Brugger <matthias.bgg@gmail.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>, 
 =?utf-8?q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= <nfraprado@collabora.com>, 
 =?utf-8?q?Bernhard_Rosenkr=C3=A4nzer?= <bero@baylibre.com>, 
 Balsam CHIHI <bchihi@baylibre.com>
Cc: Alexandre Mergnat <amergnat@baylibre.com>, linux-pm@vger.kernel.org, 
 linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 
 linux-mediatek@lists.infradead.org, Hsin-Te Yuan <yuanhsinte@chromium.org>

In order for lvts_raw_to_temp to function properly on mt8192,
temperature coefficients for mt8192 need to be added.

Fixes: 288732242db4 ("thermal/drivers/mediatek/lvts_thermal: Add mt8192 support")
Signed-off-by: Hsin-Te Yuan <yuanhsinte@chromium.org>
---
 drivers/thermal/mediatek/lvts_thermal.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index fd4bd650c77a6..6d226c3e135ca 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -80,6 +80,8 @@
 #define LVTS_SENSOR_MAX				4
 #define LVTS_GOLDEN_TEMP_MAX		62
 #define LVTS_GOLDEN_TEMP_DEFAULT	50
+#define LVTS_COEFF_A_MT8192			-250460
+#define LVTS_COEFF_B_MT8192			250460
 #define LVTS_COEFF_A_MT8195			-250460
 #define LVTS_COEFF_B_MT8195			250460
 #define LVTS_COEFF_A_MT7988			-204650
@@ -1530,11 +1532,15 @@ static const struct lvts_data mt7988_lvts_ap_data = {
 static const struct lvts_data mt8192_lvts_mcu_data = {
 	.lvts_ctrl	= mt8192_lvts_mcu_data_ctrl,
 	.num_lvts_ctrl	= ARRAY_SIZE(mt8192_lvts_mcu_data_ctrl),
+	.temp_factor	= LVTS_COEFF_A_MT8192,
+	.temp_offset	= LVTS_COEFF_B_MT8192,
 };
 
 static const struct lvts_data mt8192_lvts_ap_data = {
 	.lvts_ctrl	= mt8192_lvts_ap_data_ctrl,
 	.num_lvts_ctrl	= ARRAY_SIZE(mt8192_lvts_ap_data_ctrl),
+	.temp_factor	= LVTS_COEFF_A_MT8192,
+	.temp_offset	= LVTS_COEFF_B_MT8192,
 };
 
 static const struct lvts_data mt8195_lvts_mcu_data = {

---
base-commit: 20cb38a7af88dc40095da7c2c9094da3873fea23
change-id: 20240410-lvts_thermal-3d365847acff

Best regards,
-- 
Hsin-Te Yuan <yuanhsinte@chromium.org>