@@ -53,6 +53,7 @@
#define CLOCK_26MHZ_CYCLE_NS (38)
#define BUS_ACCESS_US (2)
+#define GOLDEN_TEMP_MAX (62)
#define FEATURE_DEVICE_AUTO_RCK (BIT(0))
#define FEATURE_CK26M_ACTIVE (BIT(1))
@@ -549,21 +550,10 @@ static int prepare_calibration_data(struct lvts_data *lvts_data)
if (!cal_data->count_rc)
return -ENOMEM;
- if (ops->efuse_to_cal_data)
+ if (ops->efuse_to_cal_data && !cal_data->use_fake_efuse)
ops->efuse_to_cal_data(lvts_data);
-
- cal_data->use_fake_efuse = 1;
- if (cal_data->golden_temp != 0) {
- cal_data->use_fake_efuse = 0;
- } else {
- for (i = 0; i < lvts_data->num_sensor; i++) {
- if (cal_data->count_r[i] != 0 ||
- cal_data->count_rc[i] != 0) {
- cal_data->use_fake_efuse = 0;
- break;
- }
- }
- }
+ if (cal_data->golden_temp == 0 || cal_data->golden_temp > GOLDEN_TEMP_MAX)
+ cal_data->use_fake_efuse = 1;
if (cal_data->use_fake_efuse) {
/* It means all efuse data are equal to 0 */
@@ -1247,6 +1237,190 @@ static struct lvts_data mt6873_lvts_data = {
},
};
+/*==================================================
+ * LVTS MT8195
+ *==================================================
+ */
+
+#define MT8195_NUM_LVTS (ARRAY_SIZE(mt8195_tc_settings))
+
+enum mt8195_lvts_domain {
+ MT8195_AP_DOMAIN,
+ MT8195_MCU_DOMAIN,
+ MT8195_NUM_DOMAIN
+};
+
+enum mt8195_lvts_sensor_enum {
+ MT8195_TS1_0,
+ MT8195_TS1_1,
+ MT8195_TS2_0,
+ MT8195_TS2_1,
+ MT8195_TS3_0,
+ MT8195_TS3_1,
+ MT8195_TS3_2,
+ MT8195_TS3_3,
+ MT8195_TS4_0,
+ MT8195_TS4_1,
+ MT8195_TS5_0,
+ MT8195_TS5_1,
+ MT8195_TS6_0,
+ MT8195_TS6_1,
+ MT8195_TS6_2,
+ MT8195_TS7_0,
+ MT8195_TS7_1,
+ MT8195_NUM_TS
+};
+
+static void mt8195_efuse_to_cal_data(struct lvts_data *lvts_data)
+{
+ struct sensor_cal_data *cal_data = &lvts_data->cal_data;
+
+ cal_data->golden_temp = GET_CAL_DATA_BITMASK(0, 31, 24);
+ cal_data->count_r[MT8195_TS1_0] = GET_CAL_DATA_BITMASK(1, 23, 0);
+ cal_data->count_r[MT8195_TS1_1] = (GET_CAL_DATA_BITMASK(2, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(1, 31, 24);
+ cal_data->count_r[MT8195_TS2_0] = GET_CAL_DATA_BITMASK(3, 31, 8);
+ cal_data->count_r[MT8195_TS2_1] = GET_CAL_DATA_BITMASK(4, 23, 0);
+ cal_data->count_r[MT8195_TS3_0] = (GET_CAL_DATA_BITMASK(6, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(5, 31, 16);
+ cal_data->count_r[MT8195_TS3_1] = GET_CAL_DATA_BITMASK(6, 31, 8);
+ cal_data->count_r[MT8195_TS3_2] = GET_CAL_DATA_BITMASK(7, 23, 0);
+ cal_data->count_r[MT8195_TS3_3] = (GET_CAL_DATA_BITMASK(8, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(7, 31, 24);
+ cal_data->count_r[MT8195_TS4_0] = GET_CAL_DATA_BITMASK(9, 31, 8);
+ cal_data->count_r[MT8195_TS4_1] = GET_CAL_DATA_BITMASK(10, 23, 0);
+ cal_data->count_r[MT8195_TS5_0] = (GET_CAL_DATA_BITMASK(12, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(11, 31, 16);
+ cal_data->count_r[MT8195_TS5_1] = GET_CAL_DATA_BITMASK(12, 31, 8);
+ cal_data->count_r[MT8195_TS6_0] = (GET_CAL_DATA_BITMASK(14, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(13, 31, 24);
+ cal_data->count_r[MT8195_TS6_1] = (GET_CAL_DATA_BITMASK(15, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(14, 31, 16);
+ cal_data->count_r[MT8195_TS6_2] = GET_CAL_DATA_BITMASK(15, 31, 8);
+ cal_data->count_r[MT8195_TS7_0] = (GET_CAL_DATA_BITMASK(17, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(16, 31, 24);
+ cal_data->count_r[MT8195_TS7_1] = (GET_CAL_DATA_BITMASK(18, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(17, 31, 16);
+ cal_data->count_rc[MT8195_TS1_0] = (GET_CAL_DATA_BITMASK(3, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(2, 31, 16);
+ cal_data->count_rc[MT8195_TS2_0] = (GET_CAL_DATA_BITMASK(5, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(4, 31, 24);
+ cal_data->count_rc[MT8195_TS3_0] = (GET_CAL_DATA_BITMASK(9, 7, 0) << 16) +
+ GET_CAL_DATA_BITMASK(8, 31, 16);
+ cal_data->count_rc[MT8195_TS4_0] = (GET_CAL_DATA_BITMASK(11, 15, 0) << 8) +
+ GET_CAL_DATA_BITMASK(10, 31, 24);
+ cal_data->count_rc[MT8195_TS5_0] = GET_CAL_DATA_BITMASK(13, 23, 0);
+ cal_data->count_rc[MT8195_TS6_0] = GET_CAL_DATA_BITMASK(16, 23, 0);
+ cal_data->count_rc[MT8195_TS7_0] = GET_CAL_DATA_BITMASK(18, 31, 8);
+}
+
+static struct tc_settings mt8195_tc_settings[] = {
+ [0] = {
+ .domain_index = MT8195_MCU_DOMAIN,
+ .addr_offset = 0x0,
+ .num_sensor = 2,
+ .sensor_map = {MT8195_TS1_0, MT8195_TS1_1},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT1,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(3),
+ },
+ [1] = {
+ .domain_index = MT8195_MCU_DOMAIN,
+ .addr_offset = 0x100,
+ .num_sensor = 2,
+ .sensor_map = {MT8195_TS2_0, MT8195_TS2_1},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT0,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(4),
+ },
+ [2] = {
+ .domain_index = MT8195_MCU_DOMAIN,
+ .addr_offset = 0x200,
+ .num_sensor = 4,
+ .sensor_map = {MT8195_TS3_0, MT8195_TS3_1, MT8195_TS3_2, MT8195_TS3_3},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT0,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(5),
+ },
+ [3] = {
+ .domain_index = MT8195_AP_DOMAIN,
+ .addr_offset = 0x0,
+ .num_sensor = 2,
+ .sensor_map = {MT8195_TS4_0, MT8195_TS4_1},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT0,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(3),
+ },
+ [4] = {
+ .domain_index = MT8195_AP_DOMAIN,
+ .addr_offset = 0x100,
+ .num_sensor = 2,
+ .sensor_map = {MT8195_TS5_0, MT8195_TS5_1},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT1,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(4),
+ },
+ [5] = {
+ .domain_index = MT8195_AP_DOMAIN,
+ .addr_offset = 0x200,
+ .num_sensor = 3,
+ .sensor_map = {MT8195_TS6_0, MT8195_TS6_1, MT8195_TS6_2},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT1,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(5),
+ },
+ [6] = {
+ .domain_index = MT8195_AP_DOMAIN,
+ .addr_offset = 0x300,
+ .num_sensor = 2,
+ .sensor_map = {MT8195_TS7_0, MT8195_TS7_1},
+ .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118),
+ .hw_filter = LVTS_FILTER_2_OF_4,
+ .dominator_sensing_point = SENSING_POINT0,
+ .hw_reboot_trip_point = 117000,
+ .irq_bit = BIT(6),
+ }
+};
+
+static struct lvts_data mt8195_lvts_data = {
+ .num_domain = MT8195_NUM_DOMAIN,
+ .num_tc = MT8195_NUM_LVTS,
+ .tc = mt8195_tc_settings,
+ .num_sensor = MT8195_NUM_TS,
+ .ops = {
+ .efuse_to_cal_data = mt8195_efuse_to_cal_data,
+ .device_enable_and_init = device_enable_and_init_v4,
+ .device_enable_auto_rck = device_enable_auto_rck_v4,
+ .device_read_count_rc_n = device_read_count_rc_n_v4,
+ .set_cal_data = set_calibration_data_v4,
+ .init_controller = init_controller_v4,
+ },
+ .feature_bitmap = FEATURE_DEVICE_AUTO_RCK,
+ .num_efuse_addr = 22,
+ .num_efuse_block = 2,
+ .cal_data = {
+ .default_golden_temp = 50,
+ .default_count_r = 35000,
+ .default_count_rc = 2750,
+ },
+ .coeff = {
+ .a = -250460,
+ .b = 250460,
+ },
+};
+
/*==================================================
*==================================================
* Support chips
@@ -1257,6 +1431,10 @@ static const struct of_device_id lvts_of_match[] = {
.compatible = "mediatek,mt6873-lvts",
.data = (void *)&mt6873_lvts_data,
},
+ {
+ .compatible = "mediatek,mt8195-lvts",
+ .data = (void *)&mt8195_lvts_data,
+ },
{
},
};