target/linux/bcm27xx/patches-4.19/950-0301-overlays-balenaFin-v1.1.0-carrier-board-update.patch

   1 From 6cafe647492605d21c2418b6261bf3182b9229f2 Mon Sep 17 00:00:00 2001
   2 From: Zahari Petkov <zahari@balena.io>
   3 Date: Fri, 8 Feb 2019 13:03:38 +0200
   4 Subject: [PATCH] overlays: balenaFin v1.1.0 carrier board update
   5
   6 A backward compatible update for the balenaFin carrier board for the
   7 Raspberry Pi Compute Module 3/3+ Lite.
   8
   9 The updated overlay includes:
  10   * support for the newly introduced RGB LEDs
  11   * i2c-gpio and SDIO improvements
  12   * DT based Marvell 88W8887 configuration
  13
  14 Signed-off-by: Zahari Petkov <zahari@balena.io>
  15 ---
  16  arch/arm/boot/dts/overlays/README             |  2 +-
  17  .../boot/dts/overlays/balena-fin-overlay.dts  | 46 ++++++++++++++++++-
  18  2 files changed, 45 insertions(+), 3 deletions(-)
  19
  20 --- a/arch/arm/boot/dts/overlays/README
  21 +++ b/arch/arm/boot/dts/overlays/README
  22 @@ -472,7 +472,7 @@ Params: swap_lr                 Reverse
  23
  24  Name:   balena-fin
  25  Info:   Overlay that enables WiFi, Bluetooth and the GPIO expander on the
  26 -        Balena Fin board.
  27 +        balenaFin carrier board for the Raspberry Pi Compute Module 3/3+ Lite.
  28  Load:   dtoverlay=balena-fin
  29  Params: <None>
  30
  31 --- a/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
  32 +++ b/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
  33 @@ -11,6 +11,7 @@
  34                         pinctrl-0 = <&sdio_pins>;
  35                         bus-width = <4>;
  36                         brcm,overclock-50 = <35>;
  37 +                       non-removable;
  38                         status = "okay";
  39                 };
  40         };
  41 @@ -34,7 +35,8 @@
  42         fragment@2 {
  43                 target-path = "/";
  44                 __overlay__ {
  45 -                       // We should investigate how to switch to mmc-pwrseq-sd8787
  46 +                       // We should switch to mmc-pwrseq-sd8787 after making it
  47 +                       // compatible with sd8887
  48                         // Currently that module requires two GPIOs to function since it
  49                         // targets a slightly different chip
  50                         power_ctrl: power_ctrl {
  51 @@ -46,10 +48,21 @@
  52                         i2c_soft: i2c@0 {
  53                                 compatible = "i2c-gpio";
  54                                 gpios = <&gpio 43 0 /* sda */ &gpio 42 0 /* scl */>;
  55 -                               i2c-gpio,delay-us = <2>; /* ~100 kHz */
  56 +                               i2c-gpio,delay-us = <5>;
  57 +                               i2c-gpio,scl-open-drain;
  58 +                               i2c-gpio,sda-open-drain;
  59                                 #address-cells = <1>;
  60                                 #size-cells = <0>;
  61                         };
  62 +
  63 +                       sd8xxx-wlan {
  64 +                               drvdbg = <0x6>;
  65 +                               drv_mode = <0x1>;
  66 +                               cfg80211_wext = <0xf>;
  67 +                               sta_name = "wlan";
  68 +                               wfd_name = "p2p";
  69 +                               cal_data_cfg = "none";
  70 +                       };
  71                 };
  72         };
  73
  74 @@ -74,6 +87,35 @@
  75                                 reg = <0x68>;
  76                                 status = "okay";
  77                         };
  78 +
  79 +                       // RGB LEDs (>= v1.1.0)
  80 +                       pca9633: pca9633@62 {
  81 +                               compatible = "nxp,pca9633";
  82 +                               reg = <0x62>;
  83 +                               #address-cells = <1>;
  84 +                               #size-cells = <0>;
  85 +
  86 +                               red@0 {
  87 +                                       label = "red";
  88 +                                       reg = <0>;
  89 +                                       linux,default-trigger = "none";
  90 +                               };
  91 +                               green@1 {
  92 +                                       label = "green";
  93 +                                       reg = <1>;
  94 +                                       linux,default-trigger = "none";
  95 +                               };
  96 +                               blue@2 {
  97 +                                       label = "blue";
  98 +                                       reg = <2>;
  99 +                                       linux,default-trigger = "none";
 100 +                               };
 101 +                               unused@3 {
 102 +                                       label = "unused";
 103 +                                       reg = <3>;
 104 +                                       linux,default-trigger = "none";
 105 +                               };
 106 +                       };
 107                 };
 108         };
 109  };