* Author: Hanyi Wu <hanyi.wu@mediatek.com>
* Sascha Hauer <s.hauer@pengutronix.de>
* Dawei Chien <dawei.chien@mediatek.com>
+ * Louis Yu <louis.yu@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
/*
* Layout of the fuses providing the calibration data
- * These macros could be used for both MT8173 and MT2701.
- * MT8173 has five sensors and need five VTS calibration data,
- * and MT2701 has three sensors and need three VTS calibration data.
+ * These macros could be used for MT8173, MT2701, and MT2712.
+ * MT8173 has 5 sensors and needs 5 VTS calibration data.
+ * MT2701 has 3 sensors and needs 3 VTS calibration data.
+ * MT2712 has 4 sensors and needs 4 VTS calibration data.
*/
#define MT8173_CALIB_BUF0_VALID BIT(0)
#define MT8173_CALIB_BUF1_ADC_GE(x) (((x) >> 22) & 0x3ff)
#define MT8173_CALIB_BUF2_VTS_TSABB(x) (((x) >> 14) & 0x1ff)
#define MT8173_CALIB_BUF0_DEGC_CALI(x) (((x) >> 1) & 0x3f)
#define MT8173_CALIB_BUF0_O_SLOPE(x) (((x) >> 26) & 0x3f)
+#define MT8173_CALIB_BUF0_O_SLOPE_SIGN(x) (((x) >> 7) & 0x1)
+#define MT8173_CALIB_BUF1_ID(x) (((x) >> 9) & 0x1)
/* MT2701 thermal sensors */
#define MT2701_TS1 0
/* The total number of temperature sensors in the MT2701 */
#define MT2701_NUM_SENSORS 3
-#define THERMAL_NAME "mtk-thermal"
-
/* The number of sensing points per bank */
#define MT2701_NUM_SENSORS_PER_ZONE 3
+/* MT2712 thermal sensors */
+#define MT2712_TS1 0
+#define MT2712_TS2 1
+#define MT2712_TS3 2
+#define MT2712_TS4 3
+
+/* AUXADC channel 11 is used for the temperature sensors */
+#define MT2712_TEMP_AUXADC_CHANNEL 11
+
+/* The total number of temperature sensors in the MT2712 */
+#define MT2712_NUM_SENSORS 4
+
+/* The number of sensing points per bank */
+#define MT2712_NUM_SENSORS_PER_ZONE 4
+
+#define THERMAL_NAME "mtk-thermal"
+
struct mtk_thermal;
struct thermal_bank_cfg {
static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 };
+/* MT2712 thermal sensor data */
+static const int mt2712_bank_data[MT2712_NUM_SENSORS] = {
+ MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4
+};
+
+static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = {
+ TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3
+};
+
+static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = {
+ TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3
+};
+
+static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 };
+
/**
* The MT8173 thermal controller has four banks. Each bank can read up to
* four temperature sensors simultaneously. The MT8173 has a total of 5
.sensor_mux_values = mt2701_mux_values,
};
+/**
+ * The MT2712 thermal controller has one bank, which can read up to
+ * four temperature sensors simultaneously. The MT2712 has a total of 4
+ * temperature sensors.
+ *
+ * The thermal core only gets the maximum temperature of this one bank,
+ * so the bank concept wouldn't be necessary here. However, the SVS (Smart
+ * Voltage Scaling) unit makes its decisions based on the same bank
+ * data.
+ */
+static const struct mtk_thermal_data mt2712_thermal_data = {
+ .auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL,
+ .num_banks = 1,
+ .num_sensors = MT2712_NUM_SENSORS,
+ .bank_data = {
+ {
+ .num_sensors = 4,
+ .sensors = mt2712_bank_data,
+ },
+ },
+ .msr = mt2712_msr,
+ .adcpnp = mt2712_adcpnp,
+ .sensor_mux_values = mt2712_mux_values,
+};
+
/**
* raw_to_mcelsius - convert a raw ADC value to mcelsius
* @mt: The thermal controller
mt->vts[MT8173_TS4] = MT8173_CALIB_BUF2_VTS_TS4(buf[2]);
mt->vts[MT8173_TSABB] = MT8173_CALIB_BUF2_VTS_TSABB(buf[2]);
mt->degc_cali = MT8173_CALIB_BUF0_DEGC_CALI(buf[0]);
- mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
+ if (MT8173_CALIB_BUF1_ID(buf[1]) &
+ MT8173_CALIB_BUF0_O_SLOPE_SIGN(buf[0]))
+ mt->o_slope = -MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
+ else
+ mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
} else {
dev_info(dev, "Device not calibrated, using default calibration values\n");
}
{
.compatible = "mediatek,mt2701-thermal",
.data = (void *)&mt2701_thermal_data,
+ },
+ {
+ .compatible = "mediatek,mt2712-thermal",
+ .data = (void *)&mt2712_thermal_data,
}, {
},
};
return -EINVAL;
}
+ ret = device_reset(&pdev->dev);
+ if (ret)
+ return ret;
+
ret = clk_prepare_enable(mt->clk_auxadc);
if (ret) {
dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret);
return ret;
}
- ret = device_reset(&pdev->dev);
- if (ret)
- goto err_disable_clk_auxadc;
-
ret = clk_prepare_enable(mt->clk_peri_therm);
if (ret) {
dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret);
module_platform_driver(mtk_thermal_driver);
+MODULE_AUTHOR("Louis Yu <louis.yu@mediatek.com>");
MODULE_AUTHOR("Dawei Chien <dawei.chien@mediatek.com>");
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_AUTHOR("Hanyi Wu <hanyi.wu@mediatek.com>");
projects / linux.git / blobdiff