From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Thu, 26 Apr 2018 11:51:33 +0000 (+0200)
Subject: thermal: exynos: remove trip reporting to user-space
X-Git-Tag: submit/tizen/20191031.012258^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=184bbf7f5c028617521e1cb3ed9b7fe40527298a;p=platform%2Fkernel%2Flinux-exynos.git

thermal: exynos: remove trip reporting to user-space

Remove trip reporting to user-space - I'm not aware of any user-space
program which relies on it and there is a thermal user-space governor
which does it in proper way nowadays.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

[sw0312.kim: apply mainline commit b43e3cfe232a to remove unnecessary overhead uevent]
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>

Change-Id: I618b1c0c2285f823ecad527b76d38153068a6d32
---

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index d60069b5dc98..0918cf221433 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -215,33 +215,6 @@ struct exynos_tmu_data {
 	void (*tmu_clear_irqs)(struct exynos_tmu_data *data);
 };
 
-static void exynos_report_trigger(struct exynos_tmu_data *p)
-{
-	char data[10], *envp[] = { data, NULL };
-	struct thermal_zone_device *tz = p->tzd;
-	int temp;
-	unsigned int i;
-
-	if (!tz) {
-		pr_err("No thermal zone device defined\n");
-		return;
-	}
-
-	thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
-
-	mutex_lock(&tz->lock);
-	/* Find the level for which trip happened */
-	for (i = 0; i < of_thermal_get_ntrips(tz); i++) {
-		tz->ops->get_trip_temp(tz, i, &temp);
-		if (tz->last_temperature < temp)
-			break;
-	}
-
-	snprintf(data, sizeof(data), "%u", i);
-	kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, envp);
-	mutex_unlock(&tz->lock);
-}
-
 /*
  * TMU treats temperature as a mapped temperature code.
  * The temperature is converted differently depending on the calibration type.
@@ -1042,7 +1015,8 @@ static void exynos_tmu_work(struct work_struct *work)
 	if (!IS_ERR(data->clk_sec))
 		clk_disable(data->clk_sec);
 
-	exynos_report_trigger(data);
+	thermal_zone_device_update(data->tzd, THERMAL_EVENT_UNSPECIFIED);
+
 	mutex_lock(&data->lock);
 	clk_enable(data->clk);