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thermal: rockchip: Support the RK3228 SoCs in thermal driver
The RK3228 SoCs has one Temperature Sensor, channel 0 is for CPU. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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@ -154,6 +154,7 @@ struct rockchip_thermal_data {
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#define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn))
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#define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn))
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#define TSADCV1_INT_PD_CLEAR_MASK ~BIT(16)
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#define TSADCV2_INT_PD_CLEAR_MASK ~BIT(8)
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#define TSADCV2_DATA_MASK 0xfff
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@ -169,6 +170,51 @@ struct tsadc_table {
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int temp;
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};
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/**
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* Note:
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* Code to Temperature mapping of the Temperature sensor is a piece wise linear
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* curve.Any temperature, code faling between to 2 give temperatures can be
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* linearly interpolated.
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* Code to Temperature mapping should be updated based on sillcon results.
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*/
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static const struct tsadc_table v1_code_table[] = {
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{TSADCV3_DATA_MASK, -40000},
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{436, -40000},
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{431, -35000},
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{426, -30000},
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{421, -25000},
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{416, -20000},
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{411, -15000},
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{406, -10000},
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{401, -5000},
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{395, 0},
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{390, 5000},
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{385, 10000},
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{380, 15000},
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{375, 20000},
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{370, 25000},
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{364, 30000},
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{359, 35000},
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{354, 40000},
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{349, 45000},
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{343, 50000},
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{338, 55000},
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{333, 60000},
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{328, 65000},
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{322, 70000},
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{317, 75000},
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{312, 80000},
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{307, 85000},
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{301, 90000},
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{296, 95000},
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{291, 100000},
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{286, 105000},
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{280, 110000},
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{275, 115000},
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{270, 120000},
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{264, 125000},
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};
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static const struct tsadc_table v2_code_table[] = {
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{TSADCV2_DATA_MASK, -40000},
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{3800, -40000},
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@ -369,6 +415,14 @@ static void rk_tsadcv2_initialize(void __iomem *regs,
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regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
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}
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static void rk_tsadcv1_irq_ack(void __iomem *regs)
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{
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u32 val;
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val = readl_relaxed(regs + TSADCV2_INT_PD);
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writel_relaxed(val & TSADCV1_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD);
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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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@ -430,6 +484,29 @@ static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs,
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writel_relaxed(val, regs + TSADCV2_INT_EN);
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}
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static const struct rockchip_tsadc_chip rk3228_tsadc_data = {
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.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
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.chn_num = 1, /* one channel 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_tsadcv2_initialize,
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.irq_ack = rk_tsadcv1_irq_ack,
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.control = rk_tsadcv2_control,
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.get_temp = rk_tsadcv2_get_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 = v1_code_table,
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.length = ARRAY_SIZE(v1_code_table),
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.data_mask = TSADCV3_DATA_MASK,
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.mode = ADC_DECREMENT,
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},
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};
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static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
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.chn_id[SENSOR_CPU] = 1, /* cpu sensor is channel 1 */
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.chn_id[SENSOR_GPU] = 2, /* gpu sensor is channel 2 */
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@ -479,6 +556,10 @@ static const struct rockchip_tsadc_chip rk3368_tsadc_data = {
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};
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static const struct of_device_id of_rockchip_thermal_match[] = {
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{
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.compatible = "rockchip,rk3228-tsadc",
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.data = (void *)&rk3228_tsadc_data,
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},
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{
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.compatible = "rockchip,rk3288-tsadc",
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.data = (void *)&rk3288_tsadc_data,
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