diff options
Diffstat (limited to 'drivers/thermal/rockchip_thermal.c')
| -rw-r--r-- | drivers/thermal/rockchip_thermal.c | 172 |
1 files changed, 160 insertions, 12 deletions
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index e845841ab036..b58e3fb9b311 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -38,7 +38,7 @@ enum tshut_mode { }; /** - * the system Temperature Sensors tshut(tshut) polarity + * The system Temperature Sensors tshut(tshut) polarity * the bit 8 is tshut polarity. * 0: low active, 1: high active */ @@ -57,10 +57,10 @@ enum sensor_id { }; /** -* The conversion table has the adc value and temperature. -* ADC_DECREMENT is the adc value decremnet.(e.g. v2_code_table) -* ADC_INCREMNET is the adc value incremnet.(e.g. v3_code_table) -*/ + * The conversion table has the adc value and temperature. + * ADC_DECREMENT: the adc value is of diminishing.(e.g. v2_code_table) + * ADC_INCREMENT: the adc value is incremental.(e.g. v3_code_table) + */ enum adc_sort_mode { ADC_DECREMENT = 0, ADC_INCREMENT, @@ -72,16 +72,17 @@ enum adc_sort_mode { */ #define SOC_MAX_SENSORS 2 +/** + * struct chip_tsadc_table: hold information about chip-specific differences + * @id: conversion table + * @length: size of conversion table + * @data_mask: mask to apply on data inputs + * @mode: sort mode of this adc variant (incrementing or decrementing) + */ struct chip_tsadc_table { const struct tsadc_table *id; - - /* the array table size*/ unsigned int length; - - /* that analogic mask data */ u32 data_mask; - - /* the sort mode is adc value that increment or decrement in table */ enum adc_sort_mode mode; }; @@ -153,6 +154,7 @@ struct rockchip_thermal_data { #define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn)) #define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn)) +#define TSADCV1_INT_PD_CLEAR_MASK ~BIT(16) #define TSADCV2_INT_PD_CLEAR_MASK ~BIT(8) #define TSADCV2_DATA_MASK 0xfff @@ -168,6 +170,51 @@ struct tsadc_table { int temp; }; +/** + * Note: + * Code to Temperature mapping of the Temperature sensor is a piece wise linear + * curve.Any temperature, code faling between to 2 give temperatures can be + * linearly interpolated. + * Code to Temperature mapping should be updated based on sillcon results. + */ +static const struct tsadc_table v1_code_table[] = { + {TSADCV3_DATA_MASK, -40000}, + {436, -40000}, + {431, -35000}, + {426, -30000}, + {421, -25000}, + {416, -20000}, + {411, -15000}, + {406, -10000}, + {401, -5000}, + {395, 0}, + {390, 5000}, + {385, 10000}, + {380, 15000}, + {375, 20000}, + {370, 25000}, + {364, 30000}, + {359, 35000}, + {354, 40000}, + {349, 45000}, + {343, 50000}, + {338, 55000}, + {333, 60000}, + {328, 65000}, + {322, 70000}, + {317, 75000}, + {312, 80000}, + {307, 85000}, + {301, 90000}, + {296, 95000}, + {291, 100000}, + {286, 105000}, + {280, 110000}, + {275, 115000}, + {270, 120000}, + {264, 125000}, +}; + static const struct tsadc_table v2_code_table[] = { {TSADCV2_DATA_MASK, -40000}, {3800, -40000}, @@ -245,6 +292,44 @@ static const struct tsadc_table v3_code_table[] = { {TSADCV3_DATA_MASK, 125000}, }; +static const struct tsadc_table v4_code_table[] = { + {TSADCV3_DATA_MASK, -40000}, + {431, -40000}, + {426, -35000}, + {421, -30000}, + {415, -25000}, + {410, -20000}, + {405, -15000}, + {399, -10000}, + {394, -5000}, + {389, 0}, + {383, 5000}, + {378, 10000}, + {373, 15000}, + {367, 20000}, + {362, 25000}, + {357, 30000}, + {351, 35000}, + {346, 40000}, + {340, 45000}, + {335, 50000}, + {330, 55000}, + {324, 60000}, + {319, 65000}, + {313, 70000}, + {308, 75000}, + {302, 80000}, + {297, 85000}, + {291, 90000}, + {286, 95000}, + {281, 100000}, + {275, 105000}, + {270, 110000}, + {264, 115000}, + {259, 120000}, + {253, 125000}, +}; + static u32 rk_tsadcv2_temp_to_code(struct chip_tsadc_table table, int temp) { @@ -368,6 +453,14 @@ static void rk_tsadcv2_initialize(void __iomem *regs, regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); } +static void rk_tsadcv1_irq_ack(void __iomem *regs) +{ + u32 val; + + val = readl_relaxed(regs + TSADCV2_INT_PD); + writel_relaxed(val & TSADCV1_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD); +} + static void rk_tsadcv2_irq_ack(void __iomem *regs) { u32 val; @@ -429,6 +522,29 @@ static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs, writel_relaxed(val, regs + TSADCV2_INT_EN); } +static const struct rockchip_tsadc_chip rk3228_tsadc_data = { + .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ + .chn_num = 1, /* one channel 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_tsadcv2_initialize, + .irq_ack = rk_tsadcv1_irq_ack, + .control = rk_tsadcv2_control, + .get_temp = rk_tsadcv2_get_temp, + .set_tshut_temp = rk_tsadcv2_tshut_temp, + .set_tshut_mode = rk_tsadcv2_tshut_mode, + + .table = { + .id = v1_code_table, + .length = ARRAY_SIZE(v1_code_table), + .data_mask = TSADCV3_DATA_MASK, + .mode = ADC_DECREMENT, + }, +}; + static const struct rockchip_tsadc_chip rk3288_tsadc_data = { .chn_id[SENSOR_CPU] = 1, /* cpu sensor is channel 1 */ .chn_id[SENSOR_GPU] = 2, /* gpu sensor is channel 2 */ @@ -477,8 +593,36 @@ static const struct rockchip_tsadc_chip rk3368_tsadc_data = { }, }; +static const struct rockchip_tsadc_chip rk3399_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_tsadcv2_initialize, + .irq_ack = rk_tsadcv1_irq_ack, + .control = rk_tsadcv2_control, + .get_temp = rk_tsadcv2_get_temp, + .set_tshut_temp = rk_tsadcv2_tshut_temp, + .set_tshut_mode = rk_tsadcv2_tshut_mode, + + .table = { + .id = v4_code_table, + .length = ARRAY_SIZE(v4_code_table), + .data_mask = TSADCV3_DATA_MASK, + .mode = ADC_DECREMENT, + }, +}; + static const struct of_device_id of_rockchip_thermal_match[] = { { + .compatible = "rockchip,rk3228-tsadc", + .data = (void *)&rk3228_tsadc_data, + }, + { .compatible = "rockchip,rk3288-tsadc", .data = (void *)&rk3288_tsadc_data, }, @@ -486,6 +630,10 @@ static const struct of_device_id of_rockchip_thermal_match[] = { .compatible = "rockchip,rk3368-tsadc", .data = (void *)&rk3368_tsadc_data, }, + { + .compatible = "rockchip,rk3399-tsadc", + .data = (void *)&rk3399_tsadc_data, + }, { /* end */ }, }; MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match); @@ -617,7 +765,7 @@ rockchip_thermal_register_sensor(struct platform_device *pdev, return 0; } -/* +/** * Reset TSADC Controller, reset all tsadc registers. */ static void rockchip_thermal_reset_controller(struct reset_control *reset) |