From d40edafe80569c5b4d8893c1cdd1060c54ef433c Mon Sep 17 00:00:00 2001 From: Tim Harvey 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 Signed-off-by: Shawn Guo --- 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 @@ -81,19 +81,6 @@ 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; - }; }; @@ -229,9 +216,14 @@ /* 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 */ @@ -286,6 +278,12 @@ >; }; + pinctrl_bten: btengrp { + fsl,pins = < + MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b1 + >; + }; + pinctrl_ecspi3: escpi3grp { fsl,pins = < MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1 @@ -391,12 +389,6 @@ >; }; - 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