[PATCH v2 4/4] thermal/rockchip: Support RK3568 SoCs in the thermal driver
Ezequiel Garcia
ezequiel at collabora.com
Thu May 6 10:55:14 PDT 2021
From: Finley Xiao <finley.xiao at rock-chips.com>
The RK3568 SoCs have two Temperature Sensors, channel 0 is for CPU,
channel 1 is for GPU.
Signed-off-by: Finley Xiao <finley.xiao at rock-chips.com>
Signed-off-by: Ezequiel Garcia <ezequiel at collabora.com>
---
drivers/thermal/rockchip_thermal.c | 121 +++++++++++++++++++++++++++++
1 file changed, 121 insertions(+)
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index aa9e0e31ef98..657d84b9963e 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -211,7 +211,11 @@ struct rockchip_thermal_data {
#define TSADCV3_AUTO_PERIOD_TIME 1875 /* 2.5ms */
#define TSADCV3_AUTO_PERIOD_HT_TIME 1875 /* 2.5ms */
+#define TSADCV5_AUTO_PERIOD_TIME 1622 /* 2.5ms */
+#define TSADCV5_AUTO_PERIOD_HT_TIME 1622 /* 2.5ms */
+
#define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */
+#define TSADCV5_USER_INTER_PD_SOC 0xfc0 /* 97us, at least 90us */
#define GRF_SARADC_TESTBIT 0x0e644
#define GRF_TSADC_TESTBIT_L 0x0e648
@@ -219,6 +223,12 @@ struct rockchip_thermal_data {
#define PX30_GRF_SOC_CON2 0x0408
+#define RK3568_GRF_TSADC_CON 0x0600
+#define RK3568_GRF_TSADC_ANA_REG0 (0x10001 << 0)
+#define RK3568_GRF_TSADC_ANA_REG1 (0x10001 << 1)
+#define RK3568_GRF_TSADC_ANA_REG2 (0x10001 << 2)
+#define RK3568_GRF_TSADC_TSEN (0x10001 << 8)
+
#define GRF_SARADC_TESTBIT_ON (0x10001 << 2)
#define GRF_TSADC_TESTBIT_H_ON (0x10001 << 2)
#define GRF_TSADC_VCM_EN_L (0x10001 << 7)
@@ -474,6 +484,45 @@ static const struct tsadc_table rk3399_code_table[] = {
{TSADCV3_DATA_MASK, 125000},
};
+static const struct tsadc_table rk3568_code_table[] = {
+ {0, -40000},
+ {1584, -40000},
+ {1620, -35000},
+ {1652, -30000},
+ {1688, -25000},
+ {1720, -20000},
+ {1756, -15000},
+ {1788, -10000},
+ {1824, -5000},
+ {1856, 0},
+ {1892, 5000},
+ {1924, 10000},
+ {1956, 15000},
+ {1992, 20000},
+ {2024, 25000},
+ {2060, 30000},
+ {2092, 35000},
+ {2128, 40000},
+ {2160, 45000},
+ {2196, 50000},
+ {2228, 55000},
+ {2264, 60000},
+ {2300, 65000},
+ {2332, 70000},
+ {2368, 75000},
+ {2400, 80000},
+ {2436, 85000},
+ {2468, 90000},
+ {2500, 95000},
+ {2536, 100000},
+ {2572, 105000},
+ {2604, 110000},
+ {2636, 115000},
+ {2672, 120000},
+ {2704, 125000},
+ {TSADCV2_DATA_MASK, 125000},
+};
+
static u32 rk_tsadcv2_temp_to_code(const struct chip_tsadc_table *table,
int temp)
{
@@ -701,6 +750,49 @@ static void rk_tsadcv4_initialize(struct regmap *grf, void __iomem *regs,
regmap_write(grf, PX30_GRF_SOC_CON2, GRF_CON_TSADC_CH_INV);
}
+static void rk_tsadcv7_initialize(struct regmap *grf, void __iomem *regs,
+ enum tshut_polarity tshut_polarity)
+{
+ writel_relaxed(TSADCV5_USER_INTER_PD_SOC, regs + TSADCV2_USER_CON);
+ writel_relaxed(TSADCV5_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
+ writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
+ regs + TSADCV2_HIGHT_INT_DEBOUNCE);
+ writel_relaxed(TSADCV5_AUTO_PERIOD_HT_TIME,
+ regs + TSADCV2_AUTO_PERIOD_HT);
+ writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
+ regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
+
+ if (tshut_polarity == TSHUT_HIGH_ACTIVE)
+ writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
+ regs + TSADCV2_AUTO_CON);
+ else
+ writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
+ regs + TSADCV2_AUTO_CON);
+
+ /*
+ * The general register file will is optional
+ * and might not be available.
+ */
+ if (!IS_ERR(grf)) {
+ regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_TSEN);
+ /*
+ * RK3568 TRM, section 18.5. requires a delay no less
+ * than 10us between the rising edge of tsadc_tsen_en
+ * and the rising edge of tsadc_ana_reg_0/1/2.
+ */
+ udelay(15);
+ regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG0);
+ regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG1);
+ regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG2);
+
+ /*
+ * RK3568 TRM, section 18.5. requires a delay no less
+ * than 90us after the rising edge of tsadc_ana_reg_0/1/2.
+ */
+ usleep_range(100, 200);
+ }
+}
+
static void rk_tsadcv2_irq_ack(void __iomem *regs)
{
u32 val;
@@ -1027,6 +1119,31 @@ static const struct rockchip_tsadc_chip rk3399_tsadc_data = {
},
};
+static const struct rockchip_tsadc_chip rk3568_tsadc_data = {
+ .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
+ .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
+ .chn_num = 2, /* two channels for tsadc */
+
+ .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
+ .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
+ .tshut_temp = 95000,
+
+ .initialize = rk_tsadcv7_initialize,
+ .irq_ack = rk_tsadcv3_irq_ack,
+ .control = rk_tsadcv3_control,
+ .get_temp = rk_tsadcv2_get_temp,
+ .set_alarm_temp = rk_tsadcv2_alarm_temp,
+ .set_tshut_temp = rk_tsadcv2_tshut_temp,
+ .set_tshut_mode = rk_tsadcv2_tshut_mode,
+
+ .table = {
+ .id = rk3568_code_table,
+ .length = ARRAY_SIZE(rk3568_code_table),
+ .data_mask = TSADCV2_DATA_MASK,
+ .mode = ADC_INCREMENT,
+ },
+};
+
static const struct of_device_id of_rockchip_thermal_match[] = {
{ .compatible = "rockchip,px30-tsadc",
.data = (void *)&px30_tsadc_data,
@@ -1059,6 +1176,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = {
.compatible = "rockchip,rk3399-tsadc",
.data = (void *)&rk3399_tsadc_data,
},
+ {
+ .compatible = "rockchip,rk3568-tsadc",
+ .data = (void *)&rk3568_tsadc_data,
+ },
{ /* end */ },
};
MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);
--
2.30.0
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