Thread (43 messages) 43 messages, 6 authors, 2022-10-03
STALE1346d REVIEWED: 1 (0M)
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[PATCH v7 07/29] thermal/drivers/exynos: Use generic thermal_zone_get_trip() function

From: Daniel Lezcano <hidden>
Date: 2022-09-28 21:03:21
Also in: linux-arm-msm, linux-omap, linux-pm, linux-renesas-soc, linux-samsung-soc, linux-tegra, lkml, platform-driver-x86
Subsystem: samsung thermal driver, the rest, thermal · Maintainers: Bartlomiej Zolnierkiewicz, Krzysztof Kozlowski, Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano

The thermal framework gives the possibility to register the trip
points with the thermal zone. When that is done, no get_trip_* ops are
needed and they can be removed.

Convert ops content logic into generic trip points and register them with the
thermal zone.

Signed-off-by: Daniel Lezcano <redacted>
Acked-by: Krzysztof Kozlowski <redacted>
---
 drivers/thermal/samsung/exynos_tmu.c | 41 +++++++++++-----------------
 1 file changed, 16 insertions(+), 25 deletions(-)
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 51874d0a284c..0e33d32a9d2e 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -260,16 +260,8 @@ 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);
 	unsigned int status;
-	int ret = 0, temp, hyst;
-
-	if (!trips) {
-		dev_err(&pdev->dev,
-			"Cannot get trip points from device tree!\n");
-		return -ENODEV;
-	}
+	int ret = 0, temp;
 
 	if (data->soc != SOC_ARCH_EXYNOS5433) /* FIXME */
 		ret = tzd->ops->get_crit_temp(tzd, &temp);
@@ -303,19 +295,16 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 
 		/* Write temperature code for rising and falling threshold */
 		for (i = 0; i < ntrips; i++) {
-			/* Write temperature code for rising threshold */
-			ret = tzd->ops->get_trip_temp(tzd, i, &temp);
-			if (ret)
-				goto err;
-			temp /= MCELSIUS;
-			data->tmu_set_trip_temp(data, i, temp);
 
-			/* Write temperature code for falling threshold */
-			ret = tzd->ops->get_trip_hyst(tzd, i, &hyst);
+			struct thermal_trip trip;
+			
+			ret = thermal_zone_get_trip(tzd, i, &trip);
 			if (ret)
 				goto err;
-			hyst /= MCELSIUS;
-			data->tmu_set_trip_hyst(data, i, temp, hyst);
+
+			data->tmu_set_trip_temp(data, i, trip.temperature / MCELSIUS);
+			data->tmu_set_trip_hyst(data, i, trip.temperature / MCELSIUS,
+						trip.hysteresis / MCELSIUS);
 		}
 
 		data->tmu_clear_irqs(data);
@@ -360,21 +349,23 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on)
 }
 
 static void exynos4210_tmu_set_trip_temp(struct exynos_tmu_data *data,
-					 int trip, u8 temp)
+					 int trip_id, u8 temp)
 {
-	const struct thermal_trip * const trips =
-		of_thermal_get_trip_points(data->tzd);
+	struct thermal_trip trip;
 	u8 ref, th_code;
 
-	ref = trips[0].temperature / MCELSIUS;
+	if (thermal_zone_get_trip(data->tzd, 0, &trip))
+		return;
 
-	if (trip == 0) {
+	ref = trip.temperature / MCELSIUS;
+	
+	if (trip_id == 0) {
 		th_code = temp_to_code(data, ref);
 		writeb(th_code, data->base + EXYNOS4210_TMU_REG_THRESHOLD_TEMP);
 	}
 
 	temp -= ref;
-	writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip * 4);
+	writeb(temp, data->base + EXYNOS4210_TMU_REG_TRIG_LEVEL0 + trip_id * 4);
 }
 
 /* failing thresholds are not supported on Exynos4210 */
-- 
2.34.1
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