target/linux/bcm27xx/patches-5.15/950-0417-bcm2711_thermal-Don-t-clamp-temperature-at-zero.patch

   1 From d9f70317612c5b3b558fd4b52c57e52832d34d52 Mon Sep 17 00:00:00 2001
   2 From: Dom Cobley <popcornmix@gmail.com>
   3 Date: Thu, 8 Jul 2021 13:48:11 +0100
   4 Subject: [PATCH] bcm2711_thermal: Don't clamp temperature at zero
   5
   6 The temperature sensor is valid below zero and the linux framework is happy with it.
   7
   8 See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=315382
   9 Signed-off-by: Dom Cobley <popcornmix@gmail.com>
  10 ---
  11  drivers/thermal/broadcom/bcm2711_thermal.c | 2 +-
  12  1 file changed, 1 insertion(+), 1 deletion(-)
  13
  14 --- a/drivers/thermal/broadcom/bcm2711_thermal.c
  15 +++ b/drivers/thermal/broadcom/bcm2711_thermal.c
  16 @@ -52,7 +52,7 @@ static int bcm2711_get_temp(void *data,
  17         /* Convert a HW code to a temperature reading (millidegree celsius) */
  18         t = slope * val + offset;
  19
  20 -       *temp = t < 0 ? 0 : t;
  21 +       *temp = t;
  22
  23         return 0;
  24  }