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Subject[PATCH 2/2] thermal: mediatek: add support for MT7622 SoC
Date
From: Sean Wang <sean.wang@mediatek.com>

MT7622 SoC has built-in thermal controller with one sensing point, the
patch just is to extend the functionality of the existing logic.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
---
drivers/thermal/mtk_thermal.c | 35 +++++++++++++++++++++++++++++++++++
1 file changed, 35 insertions(+)

diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
index 1e61c09..8a53151 100644
--- a/drivers/thermal/mtk_thermal.c
+++ b/drivers/thermal/mtk_thermal.c
@@ -158,6 +158,12 @@
/* The number of sensing points per bank */
#define MT2712_NUM_SENSORS_PER_ZONE 4

+#define MT7622_TEMP_AUXADC_CHANNEL 11
+#define MT7622_NUM_SENSORS 1
+#define MT7622_NUM_ZONES 1
+#define MT7622_NUM_SENSORS_PER_ZONE 1
+#define MT7622_TS1 0
+
#define THERMAL_NAME "mtk-thermal"

struct mtk_thermal;
@@ -249,6 +255,12 @@ static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = {

static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 };

+/* MT7622 thermal sensor data */
+static const int mt7622_bank_data[MT7622_NUM_SENSORS] = { MT7622_TS1, };
+static const int mt7622_msr[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, };
+static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, };
+static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, };
+
/**
* The MT8173 thermal controller has four banks. Each bank can read up to
* four temperature sensors simultaneously. The MT8173 has a total of 5
@@ -336,6 +348,25 @@ static const struct mtk_thermal_data mt2712_thermal_data = {
.sensor_mux_values = mt2712_mux_values,
};

+/*
+ * MT7622 have only one sensing point which uses AUXADC Channel 11 for raw data
+ * access.
+ */
+static const struct mtk_thermal_data mt7622_thermal_data = {
+ .auxadc_channel = MT7622_TEMP_AUXADC_CHANNEL,
+ .num_banks = MT7622_NUM_ZONES,
+ .num_sensors = MT7622_NUM_SENSORS,
+ .bank_data = {
+ {
+ .num_sensors = 1,
+ .sensors = mt7622_bank_data,
+ },
+ },
+ .msr = mt7622_msr,
+ .adcpnp = mt7622_adcpnp,
+ .sensor_mux_values = mt7622_mux_values,
+};
+
/**
* raw_to_mcelsius - convert a raw ADC value to mcelsius
* @mt: The thermal controller
@@ -638,6 +669,10 @@ static const struct of_device_id mtk_thermal_of_match[] = {
{
.compatible = "mediatek,mt2712-thermal",
.data = (void *)&mt2712_thermal_data,
+ },
+ {
+ .compatible = "mediatek,mt7622-thermal",
+ .data = (void *)&mt7622_thermal_data,
}, {
},
};
--
2.7.4
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