target/linux/bcm27xx/patches-5.4/950-0932-dtoverlays-Add-the-iio_hwmon-driver-to-correct-ADC-i.patch

   1 From 8bfdbba339bd363633e2232777fd749000011a41 Mon Sep 17 00:00:00 2001
   2 From: Annaliese McDermond <nh6z@nh6z.net>
   3 Date: Sun, 2 Aug 2020 18:25:07 +0000
   4 Subject: [PATCH] dtoverlays: Add the iio_hwmon driver to correct ADC
   5  issues
   6
   7 The Linux kernel maintainers removed the hwmon driver for the
   8 ads1015 used on this board.  They deprecated it in favor of using
   9 the IIO version of the driver with the iio_hwmon bridge.  This
  10 patch updates the DRAWS dtoverlay to support that usage.
  11
  12 Signed-off-by: Annaliese McDermond <nh6z@nh6z.net>
  13 ---
  14  arch/arm/boot/dts/overlays/draws-overlay.dts | 8 ++++++++
  15  1 file changed, 8 insertions(+)
  16
  17 --- a/arch/arm/boot/dts/overlays/draws-overlay.dts
  18 +++ b/arch/arm/boot/dts/overlays/draws-overlay.dts
  19 @@ -45,6 +45,13 @@
  20                  gpios = <&gpio 7 0>;
  21                  status = "okay";
  22              };
  23 +
  24 +            iio-hwmon {
  25 +                compatible = "iio-hwmon";
  26 +                status = "okay";
  27 +                io-channels = <&tla2024 4>, <&tla2024 5>, <&tla2024 6>,
  28 +                              <&tla2024 7>;
  29 +            };
  30          };
  31      };
  32
  33 @@ -91,6 +98,7 @@
  34                  reg = <0x48>;
  35                  #address-cells = <1>;
  36                  #size-cells = <0>;
  37 +                #io-channel-cells = <1>;
  38
  39                  adc_ch4: channel@4 {
  40                      reg = <4>;