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 diff --git a/arch/arm/boot/dts/imx6qdl-gw5910.dtsi b/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
  20 index 30fe47f..b850f8f 100644
  21 --- a/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
  22 +++ b/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
  23 @@ -83,19 +83,6 @@
  24                 regulator-max-microvolt = <3300000>;
  25                 regulator-always-on;
  26         };
  27 -
  28 -       reg_bt: regulator-bt {
  29 -               pinctrl-names = "default";
  30 -               pinctrl-0 = <&pinctrl_reg_bt>;
  31 -               compatible = "regulator-fixed";
  32 -               regulator-name = "bt";
  33 -               gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
  34 -               startup-delay-us = <100>;
  35 -               enable-active-high;
  36 -               regulator-min-microvolt = <3300000>;
  37 -               regulator-max-microvolt = <3300000>;
  38 -               regulator-always-on;
  39 -       };
  40  };
  41
  42
  43 @@ -231,9 +218,14 @@
  44  /* Sterling-LWB Bluetooth */
  45  &uart4 {
  46         pinctrl-names = "default";
  47 -       pinctrl-0 = <&pinctrl_uart4>;
  48 +       pinctrl-0 = <&pinctrl_uart4>,<&pinctrl_bten>;
  49         uart-has-rtscts;
  50         status = "okay";
  51 +
  52 +       bluetooth {
  53 +               compatible = "brcm,bcm4330-bt";
  54 +               shutdown-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
  55 +       };
  56  };
  57
  58  /* GPS */
  59 @@ -288,6 +280,12 @@
  60                 >;
  61         };
  62
  63 +       pinctrl_bten: btengrp {
  64 +               fsl,pins = <
  65 +                       MX6QDL_PAD_GPIO_2__GPIO1_IO02           0x1b0b1
  66 +               >;
  67 +       };
  68 +
  69         pinctrl_ecspi3: escpi3grp {
  70                 fsl,pins = <
  71                         MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK      0x100b1
  72 @@ -393,12 +391,6 @@
  73                 >;
  74         };
  75
  76 -       pinctrl_reg_bt: regbtgrp {
  77 -               fsl,pins = <
  78 -                       MX6QDL_PAD_GPIO_2__GPIO1_IO02           0x1b0b1
  79 -               >;
  80 -       };
  81 -
  82         pinctrl_reg_wl: regwlgrp {
  83                 fsl,pins = <
  84                         MX6QDL_PAD_GPIO_5__GPIO1_IO05           0x1b0b1
  85 --
  86 2.7.4
  87