diff options
Diffstat (limited to 'drivers/thermal/rockchip_thermal.c')
| -rw-r--r-- | drivers/thermal/rockchip_thermal.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index 343c2f5c5a25..7c1a8bccdcba 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -19,7 +19,7 @@ #include <linux/mfd/syscon.h> #include <linux/pinctrl/consumer.h> -/** +/* * If the temperature over a period of time High, * the resulting TSHUT gave CRU module,let it reset the entire chip, * or via GPIO give PMIC. @@ -29,7 +29,7 @@ enum tshut_mode { TSHUT_MODE_GPIO, }; -/** +/* * The system Temperature Sensors tshut(tshut) polarity * the bit 8 is tshut polarity. * 0: low active, 1: high active @@ -39,7 +39,7 @@ enum tshut_polarity { TSHUT_HIGH_ACTIVE, }; -/** +/* * The system has two Temperature Sensors. * sensor0 is for CPU, and sensor1 is for GPU. */ @@ -48,7 +48,7 @@ enum sensor_id { SENSOR_GPU, }; -/** +/* * The conversion table has the adc value and temperature. * ADC_DECREMENT: the adc value is of diminishing.(e.g. rk3288_code_table) * ADC_INCREMENT: the adc value is incremental.(e.g. rk3368_code_table) @@ -58,6 +58,8 @@ enum adc_sort_mode { ADC_INCREMENT, }; +#include "thermal_hwmon.h" + /** * The max sensors is two in rockchip SoCs. * Two sensors: CPU and GPU sensor. @@ -80,13 +82,14 @@ struct chip_tsadc_table { /** * struct rockchip_tsadc_chip - hold the private data of tsadc chip - * @chn_id[SOC_MAX_SENSORS]: the sensor id of chip correspond to the channel + * @chn_id: array of sensor ids of chip corresponding to the channel * @chn_num: the channel number of tsadc chip * @tshut_temp: the hardware-controlled shutdown temperature value * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO) * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH) * @initialize: SoC special initialize tsadc controller method * @irq_ack: clear the interrupt + * @control: enable/disable method for the tsadc controller * @get_temp: get the temperature * @set_alarm_temp: set the high temperature interrupt * @set_tshut_temp: set the hardware-controlled shutdown temperature @@ -139,7 +142,7 @@ struct rockchip_thermal_sensor { * @chip: pointer to the platform/configuration data * @pdev: platform device of thermal * @reset: the reset controller of tsadc - * @sensors[SOC_MAX_SENSORS]: the thermal sensor + * @sensors: array of thermal sensors * @clk: the controller clock is divided by the exteral 24MHz * @pclk: the advanced peripherals bus clock * @grf: the general register file will be used to do static set by software @@ -590,6 +593,9 @@ static int rk_tsadcv2_code_to_temp(const struct chip_tsadc_table *table, /** * rk_tsadcv2_initialize - initialize TASDC Controller. + * @grf: the general register file will be used to do static set by software + * @regs: the base address of tsadc controller + * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH) * * (1) Set TSADC_V2_AUTO_PERIOD: * Configure the interleave between every two accessing of @@ -624,6 +630,9 @@ static void rk_tsadcv2_initialize(struct regmap *grf, void __iomem *regs, /** * rk_tsadcv3_initialize - initialize TASDC Controller. + * @grf: the general register file will be used to do static set by software + * @regs: the base address of tsadc controller + * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH) * * (1) The tsadc control power sequence. * @@ -723,6 +732,8 @@ static void rk_tsadcv2_control(void __iomem *regs, bool enable) /** * rk_tsadcv3_control - the tsadc controller is enabled or disabled. + * @regs: the base address of tsadc controller + * @enable: boolean flag to enable the controller * * NOTE: TSADC controller works at auto mode, and some SoCs need set the * tsadc_q_sel bit on TSADCV2_AUTO_CON[1]. The (1024 - tsadc_q) as output @@ -1206,6 +1217,7 @@ rockchip_thermal_register_sensor(struct platform_device *pdev, /** * Reset TSADC Controller, reset all tsadc registers. + * @reset: the reset controller of tsadc */ static void rockchip_thermal_reset_controller(struct reset_control *reset) { @@ -1321,8 +1333,15 @@ static int rockchip_thermal_probe(struct platform_device *pdev) thermal->chip->control(thermal->regs, true); - for (i = 0; i < thermal->chip->chn_num; i++) + for (i = 0; i < thermal->chip->chn_num; i++) { rockchip_thermal_toggle_sensor(&thermal->sensors[i], true); + thermal->sensors[i].tzd->tzp->no_hwmon = false; + error = thermal_add_hwmon_sysfs(thermal->sensors[i].tzd); + if (error) + dev_warn(&pdev->dev, + "failed to register sensor %d with hwmon: %d\n", + i, error); + } platform_set_drvdata(pdev, thermal); @@ -1344,6 +1363,7 @@ static int rockchip_thermal_remove(struct platform_device *pdev) for (i = 0; i < thermal->chip->chn_num; i++) { struct rockchip_thermal_sensor *sensor = &thermal->sensors[i]; + thermal_remove_hwmon_sysfs(sensor->tzd); rockchip_thermal_toggle_sensor(sensor, false); } |