target/linux/bcm27xx/patches-5.10/950-0519-overlays-ghost-amp-Minor-tweaks.patch

   1 From e88444a73ef7bc16869e60ad1e392129a07a9f2c Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 3 Mar 2021 10:31:13 +0000
   4 Subject: [PATCH] overlays: ghost-amp: Minor tweaks
   5
   6 1. Reduce the delay between RELAY1 and RELAY2 to 1000ms.
   7 2. Rename the states to simplify LED control by an external script.
   8 3. Claim all the required GPIOs, enabling pull-ups on the input.
   9
  10 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  11 ---
  12  .../boot/dts/overlays/ghost-amp-overlay.dts   | 20 ++++++++++++++++---
  13  1 file changed, 17 insertions(+), 3 deletions(-)
  14
  15 --- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
  16 +++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
  17 @@ -54,6 +54,8 @@
  18                 __overlay__ {
  19                         amp: ghost-amp {
  20                                 compatible = "rpi,gpio-fsm";
  21 +                               pinctrl-names = "default";
  22 +                               pinctrl-0 = <&ghost_amp_pins>;
  23
  24                                 debug = <0>;
  25                                 gpio-controller;
  26 @@ -77,18 +79,18 @@
  27
  28                                 amp_on_1 {
  29                                         set = <RELAY1 1>;
  30 -                                       amp_on = <GF_DELAY 1500>;
  31 +                                       amp_on = <GF_DELAY 1000>;
  32                                         amp_off = <ENABLE 0>;
  33                                         fault = <FAULT 1>;
  34                                 };
  35
  36                                 amp_on {
  37                                         set = <RELAY2 1>;
  38 -                                       amp_off_wait = <ENABLE 0>;
  39 +                                       amp_on_wait = <ENABLE 0>;
  40                                         fault = <FAULT 1>;
  41                                 };
  42
  43 -                               amp_off_wait {
  44 +                               amp_on_wait {
  45                                         amp_off_1 = <GF_DELAY (30*60*1000)>,
  46                                                     <GF_SHUTDOWN 0>;
  47                                         amp_on = <ENABLE 1>;
  48 @@ -107,11 +109,23 @@
  49                                 fault {
  50                                         set = <RELAY2 0>,
  51                                               <RELAY1 0>;
  52 +                                       amp_off = <FAULT 0>;
  53                                         shutdown_state;
  54                                 };
  55                         };
  56                 };
  57         };
  58 +
  59 +       fragment@4 {
  60 +               target = <&gpio>;
  61 +               __overlay__ {
  62 +                       ghost_amp_pins: ghost_amp_pins {
  63 +                               brcm,pins = <5 22 23>;
  64 +                               brcm,function = <0 1 1>; /* in out out */
  65 +                               brcm,pull = <2 0 0>; /* up none none */
  66 +                       };
  67 +               };
  68 +       };
  69
  70         __overrides__ {
  71                 fsm_debug = <&amp>,"debug:0";