diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2017-09-05 17:28:58 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | fadf18e68adede83863217949ff9780bc3cb59a1 (patch) | |
| tree | c9c58e9f40dcf6865810b43e81c3bbc56da55fb0 /drivers/thermal | |
| parent | 127aa65fbd7fcd1115e005186f3c57ff1e0615c5 (diff) | |
MLK-16372-1 thermal: imx_sc: add get_trend and set_trip_temp support
Add get_trend and set_trip_temp callback to support
cpu-freq cooling function.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/imx_sc_thermal.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/thermal/imx_sc_thermal.c b/drivers/thermal/imx_sc_thermal.c index c956e420d395..ce9bf6d7df20 100644 --- a/drivers/thermal/imx_sc_thermal.c +++ b/drivers/thermal/imx_sc_thermal.c @@ -17,9 +17,14 @@ #include <linux/thermal.h> #include <soc/imx8/sc/sci.h> +#include "thermal_core.h" + struct imx_sc_sensor { struct thermal_zone_device *tzd; + struct thermal_cooling_device *cdev; sc_rsrc_t hw_id; + int temp_passive; + int temp_critical; }; struct imx_sc_tsens_device { @@ -76,13 +81,41 @@ static int imx_sc_tsens_get_temp(void *data, int *temp) static int imx_sc_tsens_get_trend(void *p, int trip, enum thermal_trend *trend) { + int trip_temp; + struct imx_sc_sensor *sensor = p; + + if (!sensor->tzd) + return 0; + + trip_temp = (trip == IMX_TRIP_PASSIVE) ? sensor->temp_passive : + sensor->temp_critical; + + if (sensor->tzd->temperature >= trip_temp) + *trend = THERMAL_TREND_RAISE_FULL; + else + *trend = THERMAL_TREND_DROP_FULL; + return 0; } +static int imx_sc_set_trip_temp(void *p, int trip, + int temp) +{ + struct imx_sc_sensor *sensor = p; + + if (trip == IMX_TRIP_CRITICAL) + sensor->temp_critical = temp; + + if (trip == IMX_TRIP_PASSIVE) + sensor->temp_passive = temp; + + return 0; +} static const struct thermal_zone_of_device_ops imx_sc_tsens_ops = { .get_temp = imx_sc_tsens_get_temp, .get_trend = imx_sc_tsens_get_trend, + .set_trip_temp = imx_sc_set_trip_temp, }; static const struct of_device_id imx_sc_tsens_table[] = { @@ -98,6 +131,7 @@ static int imx_sc_tsens_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct imx_sc_tsens_device *tsens_dev; struct imx_sc_sensor *sensor; + const struct thermal_trip *trip; struct thermal_zone_device *tzd; sc_err_t sciErr; uint32_t mu_id; @@ -142,6 +176,9 @@ static int imx_sc_tsens_probe(struct platform_device *pdev) goto failed; } sensor->tzd = tzd; + trip = of_thermal_get_trip_points(sensor->tzd); + sensor->temp_passive = trip[0].temperature; + sensor->temp_critical = trip[1].temperature; } return 0; |