@@ -150,6 +150,20 @@
#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1)
#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1)
+/*
+ * Layout of the fuses providing the calibration data
+ * These macros can be used for MT7981 and MT7986.
+ */
+#define CALIB_BUF0_ADC_GE_V3(x) (((x) >> 0) & 0x3ff)
+#define CALIB_BUF0_DEGC_CALI_V3(x) (((x) >> 20) & 0x3f)
+#define CALIB_BUF0_O_SLOPE_V3(x) (((x) >> 26) & 0x3f)
+#define CALIB_BUF1_VTS_TS1_V3(x) (((x) >> 0) & 0x1ff)
+#define CALIB_BUF1_VTS_TS2_V3(x) (((x) >> 21) & 0x1ff)
+#define CALIB_BUF1_VTS_TSABB_V3(x) (((x) >> 9) & 0x1ff)
+#define CALIB_BUF1_VALID_V3(x) (((x) >> 18) & 0x1)
+#define CALIB_BUF1_O_SLOPE_SIGN_V3(x) (((x) >> 19) & 0x1)
+#define CALIB_BUF1_ID_V3(x) (((x) >> 20) & 0x1)
+
enum {
VTS1,
VTS2,
@@ -163,6 +177,7 @@ enum {
enum mtk_thermal_version {
MTK_THERMAL_V1 = 1,
MTK_THERMAL_V2,
+ MTK_THERMAL_V3,
};
/* MT2701 thermal sensors */
@@ -245,6 +260,27 @@ enum mtk_thermal_version {
/* The calibration coefficient of sensor */
#define MT8183_CALIBRATION 153
+/* AUXADC channel 11 is used for the temperature sensors */
+#define MT7986_TEMP_AUXADC_CHANNEL 11
+
+/* The total number of temperature sensors in the MT7986 */
+#define MT7986_NUM_SENSORS 1
+
+/* The number of banks in the MT7986 */
+#define MT7986_NUM_ZONES 1
+
+/* The number of sensing points per bank */
+#define MT7986_NUM_SENSORS_PER_ZONE 1
+
+/* MT7986 thermal sensors */
+#define MT7986_TS1 0
+
+/* The number of controller in the MT7986 */
+#define MT7986_NUM_CONTROLLER 1
+
+/* The calibration coefficient of sensor */
+#define MT7986_CALIBRATION 165
+
struct mtk_thermal;
struct thermal_bank_cfg {
@@ -388,6 +424,14 @@ static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, };
static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 };
static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, };
+/* MT7986 thermal sensor data */
+static const int mt7986_bank_data[MT7986_NUM_SENSORS] = { MT7986_TS1, };
+static const int mt7986_msr[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, };
+static const int mt7986_adcpnp[MT7986_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, };
+static const int mt7986_mux_values[MT7986_NUM_SENSORS] = { 0, };
+static const int mt7986_vts_index[MT7986_NUM_SENSORS] = { VTS1 };
+static const int mt7986_tc_offset[MT7986_NUM_CONTROLLER] = { 0x0, };
+
/*
* The MT8173 thermal controller has four banks. Each bank can read up to
* four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -551,6 +595,30 @@ static const struct mtk_thermal_data mt8183_thermal_data = {
.version = MTK_THERMAL_V1,
};
+/*
+ * MT7986 uses AUXADC Channel 11 for raw data access.
+ */
+static const struct mtk_thermal_data mt7986_thermal_data = {
+ .auxadc_channel = MT7986_TEMP_AUXADC_CHANNEL,
+ .num_banks = MT7986_NUM_ZONES,
+ .num_sensors = MT7986_NUM_SENSORS,
+ .vts_index = mt7986_vts_index,
+ .cali_val = MT7986_CALIBRATION,
+ .num_controller = MT7986_NUM_CONTROLLER,
+ .controller_offset = mt7986_tc_offset,
+ .need_switch_bank = true,
+ .bank_data = {
+ {
+ .num_sensors = 1,
+ .sensors = mt7986_bank_data,
+ },
+ },
+ .msr = mt7986_msr,
+ .adcpnp = mt7986_adcpnp,
+ .sensor_mux_values = mt7986_mux_values,
+ .version = MTK_THERMAL_V3,
+};
+
/**
* raw_to_mcelsius_v1 - convert a raw ADC value to mcelsius
* @mt: The thermal controller
@@ -605,6 +673,22 @@ static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw)
return (format_2 - tmp) * 100;
}
+static int raw_to_mcelsius_v3(struct mtk_thermal *mt, int sensno, s32 raw)
+{
+ s32 tmp;
+
+ if (raw == 0)
+ return 0;
+
+ raw &= 0xfff;
+ tmp = 100000 * 15 / 16 * 10000;
+ tmp /= 4096 - 512 + mt->adc_ge;
+ tmp /= 1490;
+ tmp *= raw - mt->vts[sensno] - 2900;
+
+ return mt->degc_cali * 500 - tmp;
+}
+
/**
* mtk_thermal_get_bank - get bank
* @bank: The bank
@@ -885,6 +969,25 @@ static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf)
return 0;
}
+static int mtk_thermal_extract_efuse_v3(struct mtk_thermal *mt, u32 *buf)
+{
+ if (!CALIB_BUF1_VALID_V3(buf[1]))
+ return -EINVAL;
+
+ mt->adc_ge = CALIB_BUF0_ADC_GE_V3(buf[0]);
+ mt->degc_cali = CALIB_BUF0_DEGC_CALI_V3(buf[0]);
+ mt->o_slope = CALIB_BUF0_O_SLOPE_V3(buf[0]);
+ mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V3(buf[1]);
+ mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V3(buf[1]);
+ mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V3(buf[1]);
+ mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V3(buf[1]);
+
+ if (CALIB_BUF1_ID_V3(buf[1]) == 0)
+ mt->o_slope = 0;
+
+ return 0;
+}
+
static int mtk_thermal_get_calibration_data(struct device *dev,
struct mtk_thermal *mt)
{
@@ -895,6 +998,7 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
/* Start with default values */
mt->adc_ge = 512;
+ mt->adc_oe = 512;
for (i = 0; i < mt->conf->num_sensors; i++)
mt->vts[i] = 260;
mt->degc_cali = 40;
@@ -920,10 +1024,20 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
goto out;
}
- if (mt->conf->version == MTK_THERMAL_V1)
+ switch (mt->conf->version) {
+ case MTK_THERMAL_V1:
ret = mtk_thermal_extract_efuse_v1(mt, buf);
- else
+ break;
+ case MTK_THERMAL_V2:
ret = mtk_thermal_extract_efuse_v2(mt, buf);
+ break;
+ case MTK_THERMAL_V3:
+ ret = mtk_thermal_extract_efuse_v3(mt, buf);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
if (ret) {
dev_info(dev, "Device not calibrated, using default calibration values\n");
@@ -953,6 +1067,10 @@ static const struct of_device_id mtk_thermal_of_match[] = {
.compatible = "mediatek,mt7622-thermal",
.data = (void *)&mt7622_thermal_data,
},
+ {
+ .compatible = "mediatek,mt7986-thermal",
+ .data = (void *)&mt7986_thermal_data,
+ },
{
.compatible = "mediatek,mt8183-thermal",
.data = (void *)&mt8183_thermal_data,
@@ -1068,15 +1186,17 @@ static int mtk_thermal_probe(struct platform_device *pdev)
goto err_disable_clk_auxadc;
}
- if (mt->conf->version == MTK_THERMAL_V2) {
+ if (mt->conf->version != MTK_THERMAL_V1) {
mtk_thermal_turn_on_buffer(apmixed_base);
mtk_thermal_release_periodic_ts(mt, auxadc_base);
}
if (mt->conf->version == MTK_THERMAL_V1)
mt->raw_to_mcelsius = raw_to_mcelsius_v1;
- else
+ else if (mt->conf->version == MTK_THERMAL_V2)
mt->raw_to_mcelsius = raw_to_mcelsius_v2;
+ else
+ mt->raw_to_mcelsius = raw_to_mcelsius_v3;
for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++)
for (i = 0; i < mt->conf->num_banks; i++)