thermal/drivers/mediatek/lvts_thermal: Add mt7988 support

Add Support for Mediatek Filogic 880/MT7988 LVTS.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230922055020.6436-5-linux@fw-web.de

diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index f9dcc50f4fd44d0d289403a4cd2414aef5b5c6a3..f1feaa1ace2e02d75eed7dc429d5500b925abe08 100644 (file)
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -82,6 +82,8 @@
 #define LVTS_GOLDEN_TEMP_DEFAULT       50
 #define LVTS_COEFF_A_MT8195                    -250460
 #define LVTS_COEFF_B_MT8195                    250460
+#define LVTS_COEFF_A_MT7988                    -204650
+#define LVTS_COEFF_B_MT7988                    204650
 
 #define LVTS_MSR_IMMEDIATE_MODE                0
 #define LVTS_MSR_FILTERED_MODE         1
@@ -89,6 +91,7 @@
 #define LVTS_MSR_READ_TIMEOUT_US       400
 #define LVTS_MSR_READ_WAIT_US          (LVTS_MSR_READ_TIMEOUT_US / 2)
 
+#define LVTS_HW_SHUTDOWN_MT7988                105000
 #define LVTS_HW_SHUTDOWN_MT8195                105000
 
 #define LVTS_MINIMUM_THRESHOLD         20000
@@ -1267,6 +1270,33 @@ static void lvts_remove(struct platform_device *pdev)
        lvts_debugfs_exit(lvts_td);
 }
 
+static const struct lvts_ctrl_data mt7988_lvts_ap_data_ctrl[] = {
+       {
+               .cal_offset = { 0x00, 0x04, 0x08, 0x0c },
+               .lvts_sensor = {
+                       { .dt_id = MT7988_CPU_0 },
+                       { .dt_id = MT7988_CPU_1 },
+                       { .dt_id = MT7988_ETH2P5G_0 },
+                       { .dt_id = MT7988_ETH2P5G_1 }
+               },
+               .num_lvts_sensor = 4,
+               .offset = 0x0,
+               .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT7988,
+       },
+       {
+               .cal_offset = { 0x14, 0x18, 0x1c, 0x20 },
+               .lvts_sensor = {
+                       { .dt_id = MT7988_TOPS_0},
+                       { .dt_id = MT7988_TOPS_1},
+                       { .dt_id = MT7988_ETHWARP_0},
+                       { .dt_id = MT7988_ETHWARP_1}
+               },
+               .num_lvts_sensor = 4,
+               .offset = 0x100,
+               .hw_tshut_temp = LVTS_HW_SHUTDOWN_MT7988,
+       }
+};
+
 static const struct lvts_ctrl_data mt8195_lvts_mcu_data_ctrl[] = {
        {
                .cal_offset = { 0x04, 0x07 },
@@ -1346,6 +1376,13 @@ static const struct lvts_ctrl_data mt8195_lvts_ap_data_ctrl[] = {
        }
 };
 
+static const struct lvts_data mt7988_lvts_ap_data = {
+       .lvts_ctrl      = mt7988_lvts_ap_data_ctrl,
+       .num_lvts_ctrl  = ARRAY_SIZE(mt7988_lvts_ap_data_ctrl),
+       .temp_factor    = LVTS_COEFF_A_MT7988,
+       .temp_offset    = LVTS_COEFF_B_MT7988,
+};
+
 static const struct lvts_data mt8195_lvts_mcu_data = {
        .lvts_ctrl      = mt8195_lvts_mcu_data_ctrl,
        .num_lvts_ctrl  = ARRAY_SIZE(mt8195_lvts_mcu_data_ctrl),
@@ -1361,6 +1398,7 @@ static const struct lvts_data mt8195_lvts_ap_data = {
 };
 
 static const struct of_device_id lvts_of_match[] = {
+       { .compatible = "mediatek,mt7988-lvts-ap", .data = &mt7988_lvts_ap_data },
        { .compatible = "mediatek,mt8195-lvts-mcu", .data = &mt8195_lvts_mcu_data },
        { .compatible = "mediatek,mt8195-lvts-ap", .data = &mt8195_lvts_ap_data },
        {},