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ARM: dts: imx6qdl-gw5910: add support for bcm4330-bt

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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>
This commit is contained in:
Tim Harvey
2020-05-12 14:54:15 -07:00
committed by Shawn Guo
parent c8756cbad8
commit d40edafe80
1 changed files with 12 additions and 20 deletions
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32
arch/arm/boot/dts/imx6qdl-gw5910.dtsi
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@@ -83,19 +83,6 @@ reg_wl: regulator-wl {
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 @@ &uart3 {
/* 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 @@ MX6QDL_PAD_GPIO_18__GPIO7_IO13 0x1b0b1
>;
};
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 @@ MX6QDL_PAD_SD1_DAT1__PWM3_OUT 0x1b0b1
>;
};
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