target/linux/bcm53xx/patches-4.4/047-0020-ARM-dts-BCM5301X-Add-CPU-thermal-sensor-and-zone.patch

   1 From e55d2c7272ff647efac4aecd895b20ee66e43519 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   3 Date: Fri, 14 Apr 2017 23:42:28 +0200
   4 Subject: [PATCH] ARM: dts: BCM5301X: Add CPU thermal sensor and zone
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This uses CPU thermal sensor available on every Northstar chipset to
  10 monitor temperature. We don't have any cooling or throttling so only a
  11 critical trip was added.
  12
  13 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  14 Acked-by: Jon Mason <jon.mason@broadcom.com>
  15 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  16 ---
  17  arch/arm/boot/dts/bcm5301x.dtsi | 26 ++++++++++++++++++++++++++
  18  1 file changed, 26 insertions(+)
  19
  20 --- a/arch/arm/boot/dts/bcm5301x.dtsi
  21 +++ b/arch/arm/boot/dts/bcm5301x.dtsi
  22 @@ -363,6 +363,12 @@
  23                                      "sata2";
  24         };
  25
  26 +       thermal: thermal@1800c2c0 {
  27 +               compatible = "brcm,ns-thermal";
  28 +               reg = <0x1800c2c0 0x10>;
  29 +               #thermal-sensor-cells = <0>;
  30 +       };
  31 +
  32         srab: srab@18007000 {
  33                 compatible = "brcm,bcm5301x-srab";
  34                 reg = <0x18007000 0x1000>;
  35 @@ -390,4 +396,24 @@
  36
  37                 brcm,nand-has-wp;
  38         };
  39 +
  40 +       thermal-zones {
  41 +               cpu_thermal: cpu-thermal {
  42 +                       polling-delay-passive = <0>;
  43 +                       polling-delay = <1000>;
  44 +                       coefficients = <(-556) 418000>;
  45 +                       thermal-sensors = <&thermal>;
  46 +
  47 +                       trips {
  48 +                               cpu-crit {
  49 +                                       temperature     = <125000>;
  50 +                                       hysteresis      = <0>;
  51 +                                       type            = "critical";
  52 +                               };
  53 +                       };
  54 +
  55 +                       cooling-maps {
  56 +                       };
  57 +               };
  58 +       };
  59  };