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thermal/drivers/rockchip: Support RK3568 SoCs in the thermal driver
The RK3568 SoCs have two Temperature Sensors, channel 0 is for CPU, channel 1 is for GPU. Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210506175514.168365-5-ezequiel@collabora.com
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@ -211,7 +211,11 @@ struct rockchip_thermal_data {
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#define TSADCV3_AUTO_PERIOD_TIME 1875 /* 2.5ms */
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#define TSADCV3_AUTO_PERIOD_HT_TIME 1875 /* 2.5ms */
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#define TSADCV5_AUTO_PERIOD_TIME 1622 /* 2.5ms */
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#define TSADCV5_AUTO_PERIOD_HT_TIME 1622 /* 2.5ms */
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#define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */
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#define TSADCV5_USER_INTER_PD_SOC 0xfc0 /* 97us, at least 90us */
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#define GRF_SARADC_TESTBIT 0x0e644
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#define GRF_TSADC_TESTBIT_L 0x0e648
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@ -219,6 +223,12 @@ struct rockchip_thermal_data {
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#define PX30_GRF_SOC_CON2 0x0408
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#define RK3568_GRF_TSADC_CON 0x0600
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#define RK3568_GRF_TSADC_ANA_REG0 (0x10001 << 0)
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#define RK3568_GRF_TSADC_ANA_REG1 (0x10001 << 1)
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#define RK3568_GRF_TSADC_ANA_REG2 (0x10001 << 2)
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#define RK3568_GRF_TSADC_TSEN (0x10001 << 8)
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#define GRF_SARADC_TESTBIT_ON (0x10001 << 2)
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#define GRF_TSADC_TESTBIT_H_ON (0x10001 << 2)
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#define GRF_TSADC_VCM_EN_L (0x10001 << 7)
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@ -474,6 +484,45 @@ static const struct tsadc_table rk3399_code_table[] = {
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{TSADCV3_DATA_MASK, 125000},
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};
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static const struct tsadc_table rk3568_code_table[] = {
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{0, -40000},
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{1584, -40000},
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{1620, -35000},
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{1652, -30000},
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{1688, -25000},
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{1720, -20000},
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{1756, -15000},
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{1788, -10000},
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{1824, -5000},
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{1856, 0},
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{1892, 5000},
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{1924, 10000},
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{1956, 15000},
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{1992, 20000},
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{2024, 25000},
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{2060, 30000},
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{2092, 35000},
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{2128, 40000},
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{2160, 45000},
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{2196, 50000},
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{2228, 55000},
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{2264, 60000},
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{2300, 65000},
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{2332, 70000},
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{2368, 75000},
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{2400, 80000},
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{2436, 85000},
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{2468, 90000},
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{2500, 95000},
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{2536, 100000},
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{2572, 105000},
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{2604, 110000},
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{2636, 115000},
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{2672, 120000},
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{2704, 125000},
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{TSADCV2_DATA_MASK, 125000},
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};
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static u32 rk_tsadcv2_temp_to_code(const struct chip_tsadc_table *table,
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int temp)
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{
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@ -701,6 +750,49 @@ static void rk_tsadcv4_initialize(struct regmap *grf, void __iomem *regs,
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regmap_write(grf, PX30_GRF_SOC_CON2, GRF_CON_TSADC_CH_INV);
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}
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static void rk_tsadcv7_initialize(struct regmap *grf, void __iomem *regs,
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enum tshut_polarity tshut_polarity)
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{
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writel_relaxed(TSADCV5_USER_INTER_PD_SOC, regs + TSADCV2_USER_CON);
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writel_relaxed(TSADCV5_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
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writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
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regs + TSADCV2_HIGHT_INT_DEBOUNCE);
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writel_relaxed(TSADCV5_AUTO_PERIOD_HT_TIME,
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regs + TSADCV2_AUTO_PERIOD_HT);
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writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
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regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
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if (tshut_polarity == TSHUT_HIGH_ACTIVE)
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writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
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regs + TSADCV2_AUTO_CON);
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else
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writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
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regs + TSADCV2_AUTO_CON);
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/*
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* The general register file will is optional
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* and might not be available.
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*/
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if (!IS_ERR(grf)) {
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regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_TSEN);
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/*
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* RK3568 TRM, section 18.5. requires a delay no less
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* than 10us between the rising edge of tsadc_tsen_en
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* and the rising edge of tsadc_ana_reg_0/1/2.
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*/
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udelay(15);
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regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG0);
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regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG1);
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regmap_write(grf, RK3568_GRF_TSADC_CON, RK3568_GRF_TSADC_ANA_REG2);
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/*
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* RK3568 TRM, section 18.5. requires a delay no less
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* than 90us after the rising edge of tsadc_ana_reg_0/1/2.
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*/
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usleep_range(100, 200);
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}
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}
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static void rk_tsadcv2_irq_ack(void __iomem *regs)
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{
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u32 val;
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@ -1027,6 +1119,31 @@ static const struct rockchip_tsadc_chip rk3399_tsadc_data = {
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},
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};
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static const struct rockchip_tsadc_chip rk3568_tsadc_data = {
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.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
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.chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
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.chn_num = 2, /* two channels for tsadc */
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.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
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.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
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.tshut_temp = 95000,
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.initialize = rk_tsadcv7_initialize,
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.irq_ack = rk_tsadcv3_irq_ack,
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.control = rk_tsadcv3_control,
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.get_temp = rk_tsadcv2_get_temp,
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.set_alarm_temp = rk_tsadcv2_alarm_temp,
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.set_tshut_temp = rk_tsadcv2_tshut_temp,
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.set_tshut_mode = rk_tsadcv2_tshut_mode,
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.table = {
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.id = rk3568_code_table,
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.length = ARRAY_SIZE(rk3568_code_table),
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.data_mask = TSADCV2_DATA_MASK,
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.mode = ADC_INCREMENT,
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},
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};
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static const struct of_device_id of_rockchip_thermal_match[] = {
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{ .compatible = "rockchip,px30-tsadc",
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.data = (void *)&px30_tsadc_data,
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@ -1059,6 +1176,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = {
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.compatible = "rockchip,rk3399-tsadc",
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.data = (void *)&rk3399_tsadc_data,
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},
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{
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.compatible = "rockchip,rk3568-tsadc",
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.data = (void *)&rk3568_tsadc_data,
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},
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{ /* end */ },
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};
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MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);
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