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thermal: exynos: always check for trips points existence 

* Check for trip points existence in exynos_tmu_initialize() so it is
  checked on all SoCs.

* Use dev_err() instead of pr_err().

* Fix dev_err() to reference "device tree" not "of-thermal.c".

* Remove no longer needed checks from exynos4210_tmu_initialize() and
  get_th_reg().

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2018-04-26 13:51:17 +02:00 committed by Eduardo Valentin
parent 8bfc218d0e
commit 75e0f10077
1 changed files with 11 additions and 15 deletions
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26
drivers/thermal/samsung/exynos_tmu.c
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@ -309,12 +309,6 @@ static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
unsigned long temp;
int i;
if (!trips) {
pr_err("%s: Cannot get trip points from of-thermal.c!\n",
__func__);
return 0;
}
for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
if (trips[i].type == THERMAL_TRIP_CRITICAL)
continue;
@ -334,14 +328,23 @@ static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
static int exynos_tmu_initialize(struct platform_device *pdev)
{
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
struct thermal_zone_device *tzd = data->tzd;
const struct thermal_trip * const trips =
of_thermal_get_trip_points(tzd);
int ret;
if (of_thermal_get_ntrips(data->tzd) > data->ntrip) {
if (!trips) {
dev_err(&pdev->dev,
"Cannot get trip points from device tree!\n");
return -ENODEV;
}
if (of_thermal_get_ntrips(tzd) > data->ntrip) {
dev_info(&pdev->dev,
"More trip points than supported by this TMU.\n");
dev_info(&pdev->dev,
"%d trip points should be configured in polling mode.\n",
(of_thermal_get_ntrips(data->tzd) - data->ntrip));
(of_thermal_get_ntrips(tzd) - data->ntrip));
}
mutex_lock(&data->lock);
@ -397,13 +400,6 @@ static int exynos4210_tmu_initialize(struct platform_device *pdev)
unsigned long reference, temp;
unsigned int status;
if (!trips) {
pr_err("%s: Cannot get trip points from of-thermal.c!\n",
__func__);
ret = -ENODEV;
goto out;
}
status = readb(data->base + EXYNOS_TMU_REG_STATUS);
if (!status) {
ret = -EBUSY;