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From d40edafe80569c5b4d8893c1cdd1060c54ef433c Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Tue, 12 May 2020 14:54:15 -0700
Subject: [PATCH 07/20] ARM: dts: imx6qdl-gw5910: add support for bcm4330-bt
The Sterling-LWB has a BCM4330 which has a UART based bluetooth
HCI. Add support for binding to the bcm_hci driver to take care
of handling the shutdown gpio and loading firmware.
Because the shutdown gpio is more of an enable than a regulator
go ahead and replace the regulator with a shutdown-gpio.
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---
arch/arm/boot/dts/imx6qdl-gw5910.dtsi | 32 ++++++++++++--------------------
1 file changed, 12 insertions(+), 20 deletions(-)
--- a/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
@@ -83,19 +83,6 @@
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
-
- reg_bt: regulator-bt {
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_reg_bt>;
- compatible = "regulator-fixed";
- regulator-name = "bt";
- gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
- startup-delay-us = <100>;
- enable-active-high;
- regulator-min-microvolt = <3300000>;
- regulator-max-microvolt = <3300000>;
- regulator-always-on;
- };
};
@@ -231,9 +218,14 @@
/* Sterling-LWB Bluetooth */
&uart4 {
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_uart4>;
+ pinctrl-0 = <&pinctrl_uart4>,<&pinctrl_bten>;
uart-has-rtscts;
status = "okay";
+
+ bluetooth {
+ compatible = "brcm,bcm4330-bt";
+ shutdown-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ };
};
/* GPS */
@@ -288,6 +280,12 @@
>;
};
+ pinctrl_bten: btengrp {
+ fsl,pins = <
+ MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b1
+ >;
+ };
+
pinctrl_ecspi3: escpi3grp {
fsl,pins = <
MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1
@@ -393,12 +391,6 @@
>;
};
- pinctrl_reg_bt: regbtgrp {
- fsl,pins = <
- MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b1
- >;
- };
-
pinctrl_reg_wl: regwlgrp {
fsl,pins = <
MX6QDL_PAD_GPIO_5__GPIO1_IO05 0x1b0b1
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