diff mbox series

[3/3] thermal/drivers/u8500: Remove the get_trend function

Message ID 20220616202537.303655-3-daniel.lezcano@linaro.org
State Accepted
Commit 66a0b101efca70097a14aece9c76bc24cd0da119
Headers show
Series [1/3] thermal/drivers/qcom: Remove get_trend function | expand

Commit Message

Daniel Lezcano June 16, 2022, 8:25 p.m. UTC 
The get_trend function relies on the interrupt to set the raising or
dropping trend. However the interpolated temperature is already giving
the temperature information to the thermal framework which is able to
deduce the trend.

Remove the trend code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/thermal/db8500_thermal.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

Comments

Linus Walleij June 28, 2022, 12:50 p.m. UTC | #1 
On Tue, Jun 28, 2022 at 10:40 AM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:

> Adding Linus who is missing in the recipient list.
>
>
> On 16/06/2022 22:25, Daniel Lezcano wrote:
> > The get_trend function relies on the interrupt to set the raising or
> > dropping trend. However the interpolated temperature is already giving
> > the temperature information to the thermal framework which is able to
> > deduce the trend.
> >
> > Remove the trend code.
> >
> > Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

I certainly trust you with this :)
Acked-by: Linus Walleij <linus.walleij@linaro.org>

The code was originally written by Hongbo Zhang, but co-developed
and tested by Vincent Guittot I think, so paging
him as well.

Yours,
Linus Walleij
diff mbox series

Patch

diff --git a/drivers/thermal/db8500_thermal.c b/drivers/thermal/db8500_thermal.c
index 21d4d6e6409a..ed40cfd9ab7d 100644
--- a/drivers/thermal/db8500_thermal.c
+++ b/drivers/thermal/db8500_thermal.c
@@ -53,7 +53,6 @@  static const unsigned long db8500_thermal_points[] = {
 
 struct db8500_thermal_zone {
 	struct thermal_zone_device *tz;
-	enum thermal_trend trend;
 	unsigned long interpolated_temp;
 	unsigned int cur_index;
 };
@@ -73,24 +72,12 @@  static int db8500_thermal_get_temp(void *data, int *temp)
 	return 0;
 }
 
-/* Callback to get temperature changing trend */
-static int db8500_thermal_get_trend(void *data, int trip, enum thermal_trend *trend)
-{
-	struct db8500_thermal_zone *th = data;
-
-	*trend = th->trend;
-
-	return 0;
-}
-
 static struct thermal_zone_of_device_ops thdev_ops = {
 	.get_temp = db8500_thermal_get_temp,
-	.get_trend = db8500_thermal_get_trend,
 };
 
 static void db8500_thermal_update_config(struct db8500_thermal_zone *th,
 					 unsigned int idx,
-					 enum thermal_trend trend,
 					 unsigned long next_low,
 					 unsigned long next_high)
 {
@@ -98,7 +85,6 @@  static void db8500_thermal_update_config(struct db8500_thermal_zone *th,
 
 	th->cur_index = idx;
 	th->interpolated_temp = (next_low + next_high)/2;
-	th->trend = trend;
 
 	/*
 	 * The PRCMU accept absolute temperatures in celsius so divide
@@ -127,8 +113,7 @@  static irqreturn_t prcmu_low_irq_handler(int irq, void *irq_data)
 	}
 	idx -= 1;
 
-	db8500_thermal_update_config(th, idx, THERMAL_TREND_DROPPING,
-				     next_low, next_high);
+	db8500_thermal_update_config(th, idx, next_low, next_high);
 	dev_dbg(&th->tz->device,
 		"PRCMU set max %ld, min %ld\n", next_high, next_low);
 
@@ -149,8 +134,7 @@  static irqreturn_t prcmu_high_irq_handler(int irq, void *irq_data)
 		next_low = db8500_thermal_points[idx];
 		idx += 1;
 
-		db8500_thermal_update_config(th, idx, THERMAL_TREND_RAISING,
-					     next_low, next_high);
+		db8500_thermal_update_config(th, idx, next_low, next_high);
 
 		dev_dbg(&th->tz->device,
 			"PRCMU set max %ld, min %ld\n", next_high, next_low);
@@ -210,8 +194,7 @@  static int db8500_thermal_probe(struct platform_device *pdev)
 	dev_info(dev, "thermal zone sensor registered\n");
 
 	/* Start measuring at the lowest point */
-	db8500_thermal_update_config(th, 0, THERMAL_TREND_STABLE,
-				     PRCMU_DEFAULT_LOW_TEMP,
+	db8500_thermal_update_config(th, 0, PRCMU_DEFAULT_LOW_TEMP,
 				     db8500_thermal_points[0]);
 
 	platform_set_drvdata(pdev, th);
@@ -232,8 +215,7 @@  static int db8500_thermal_resume(struct platform_device *pdev)
 	struct db8500_thermal_zone *th = platform_get_drvdata(pdev);
 
 	/* Resume and start measuring at the lowest point */
-	db8500_thermal_update_config(th, 0, THERMAL_TREND_STABLE,
-				     PRCMU_DEFAULT_LOW_TEMP,
+	db8500_thermal_update_config(th, 0, PRCMU_DEFAULT_LOW_TEMP,
 				     db8500_thermal_points[0]);
 
 	return 0;