target/linux/bcm27xx/patches-5.15/950-0659-power-rpi-poe-Drop-CURRENT_AVG-as-it-is-not-hardware.patch

   1 From dd73451d7f93925a0aca446c5fef68c543658637 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 20 Jan 2022 15:48:03 +0000
   4 Subject: [PATCH] power: rpi-poe: Drop CURRENT_AVG as it is not
   5  hardware averaged
   6
   7 As documented the _AVG parameters are meant to be hardware
   8 averaged, but the implementation for the PoE+ HAT was done in
   9 software in the firmware.
  10
  11 Drop the property.
  12
  13 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  14 ---
  15  drivers/power/supply/rpi_poe_power.c | 10 ----------
  16  1 file changed, 10 deletions(-)
  17
  18 --- a/drivers/power/supply/rpi_poe_power.c
  19 +++ b/drivers/power/supply/rpi_poe_power.c
  20 @@ -106,15 +106,6 @@ static int rpi_poe_power_supply_get_prop
  21                 r_val->intval = (val > 5);
  22                 return 0;
  23
  24 -       case POWER_SUPPLY_PROP_CURRENT_AVG:
  25 -               val = 50;
  26 -               ret = read_reg(ctx->fw, RPI_POE_ADC_REG, &val);
  27 -               if (ret)
  28 -                       return ret;
  29 -               val = (val * 3300)/9821;
  30 -               r_val->intval = val * 1000;
  31 -               return 0;
  32 -
  33         case POWER_SUPPLY_PROP_CURRENT_NOW:
  34                 ret = read_reg(ctx->fw, RPI_POE_ADC_REG, &val);
  35                 if (ret)
  36 @@ -145,7 +136,6 @@ static int rpi_poe_power_supply_get_prop
  37  static enum power_supply_property rpi_poe_power_supply_properties[] = {
  38         POWER_SUPPLY_PROP_HEALTH,
  39         POWER_SUPPLY_PROP_ONLINE,
  40 -       POWER_SUPPLY_PROP_CURRENT_AVG,
  41         POWER_SUPPLY_PROP_CURRENT_NOW,
  42         POWER_SUPPLY_PROP_CURRENT_MAX,
  43  };