openwrt/target/linux/bcm27xx/patches-5.15/950-0417-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch
Álvaro Fernández Rojas 20ea6adbf1 bcm27xx: add support for linux v5.15
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2022-05-17 15:11:22 +02:00

25 lines
835 B
Diff

From d9f70317612c5b3b558fd4b52c57e52832d34d52 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Thu, 8 Jul 2021 13:48:11 +0100
Subject: [PATCH] bcm2711_thermal: Don't clamp temperature at zero
The temperature sensor is valid below zero and the linux framework is happy with it.
See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=315382
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
drivers/thermal/broadcom/bcm2711_thermal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/thermal/broadcom/bcm2711_thermal.c
+++ b/drivers/thermal/broadcom/bcm2711_thermal.c
@@ -52,7 +52,7 @@ static int bcm2711_get_temp(void *data,
/* Convert a HW code to a temperature reading (millidegree celsius) */
t = slope * val + offset;
- *temp = t < 0 ? 0 : t;
+ *temp = t;
return 0;
}