target/linux/imx6/patches-5.4/009-v5.8-ARM-dts-imx6qdl-gw5910-add-support-for-bcm4330-bt.patch

   1 From d40edafe80569c5b4d8893c1cdd1060c54ef433c Mon Sep 17 00:00:00 2001
   2 From: Tim Harvey <tharvey@gateworks.com>
   3 Date: Tue, 12 May 2020 14:54:15 -0700
   4 Subject: [PATCH 07/20] ARM: dts: imx6qdl-gw5910: add support for bcm4330-bt
   5
   6 The Sterling-LWB has a BCM4330 which has a UART based bluetooth
   7 HCI. Add support for binding to the bcm_hci driver to take care
   8 of handling the shutdown gpio and loading firmware.
   9
  10 Because the shutdown gpio is more of an enable than a regulator
  11 go ahead and replace the regulator with a shutdown-gpio.
  12
  13 Signed-off-by: Tim Harvey <tharvey@gateworks.com>
  14 Signed-off-by: Shawn Guo <shawnguo@kernel.org>
  15 ---
  16  arch/arm/boot/dts/imx6qdl-gw5910.dtsi | 32 ++++++++++++--------------------
  17  1 file changed, 12 insertions(+), 20 deletions(-)
  18
  19 --- a/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
  20 +++ b/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
  21 @@ -81,19 +81,6 @@
  22                 regulator-max-microvolt = <3300000>;
  23                 regulator-always-on;
  24         };
  25 -
  26 -       reg_bt: regulator-bt {
  27 -               pinctrl-names = "default";
  28 -               pinctrl-0 = <&pinctrl_reg_bt>;
  29 -               compatible = "regulator-fixed";
  30 -               regulator-name = "bt";
  31 -               gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
  32 -               startup-delay-us = <100>;
  33 -               enable-active-high;
  34 -               regulator-min-microvolt = <3300000>;
  35 -               regulator-max-microvolt = <3300000>;
  36 -               regulator-always-on;
  37 -       };
  38  };
  39
  40
  41 @@ -229,9 +216,14 @@
  42  /* Sterling-LWB Bluetooth */
  43  &uart4 {
  44         pinctrl-names = "default";
  45 -       pinctrl-0 = <&pinctrl_uart4>;
  46 +       pinctrl-0 = <&pinctrl_uart4>,<&pinctrl_bten>;
  47         uart-has-rtscts;
  48         status = "okay";
  49 +
  50 +       bluetooth {
  51 +               compatible = "brcm,bcm4330-bt";
  52 +               shutdown-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
  53 +       };
  54  };
  55
  56  /* GPS */
  57 @@ -286,6 +278,12 @@
  58                 >;
  59         };
  60
  61 +       pinctrl_bten: btengrp {
  62 +               fsl,pins = <
  63 +                       MX6QDL_PAD_GPIO_2__GPIO1_IO02           0x1b0b1
  64 +               >;
  65 +       };
  66 +
  67         pinctrl_ecspi3: escpi3grp {
  68                 fsl,pins = <
  69                         MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK      0x100b1
  70 @@ -391,12 +389,6 @@
  71                 >;
  72         };
  73
  74 -       pinctrl_reg_bt: regbtgrp {
  75 -               fsl,pins = <
  76 -                       MX6QDL_PAD_GPIO_2__GPIO1_IO02           0x1b0b1
  77 -               >;
  78 -       };
  79 -
  80         pinctrl_reg_wl: regwlgrp {
  81                 fsl,pins = <
  82                         MX6QDL_PAD_GPIO_5__GPIO1_IO05           0x1b0b1