2020-05-28 13:56:17 +00:00
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From d40edafe80569c5b4d8893c1cdd1060c54ef433c Mon Sep 17 00:00:00 2001
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From: Tim Harvey <tharvey@gateworks.com>
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Date: Tue, 12 May 2020 14:54:15 -0700
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Subject: [PATCH 07/20] 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
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HCI. Add support for binding to the bcm_hci driver to take care
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of handling the shutdown gpio and loading firmware.
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Because the shutdown gpio is more of an enable than a regulator
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go ahead and replace the regulator with a shutdown-gpio.
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Signed-off-by: Tim Harvey <tharvey@gateworks.com>
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Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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---
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arch/arm/boot/dts/imx6qdl-gw5910.dtsi | 32 ++++++++++++--------------------
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1 file changed, 12 insertions(+), 20 deletions(-)
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--- a/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
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+++ b/arch/arm/boot/dts/imx6qdl-gw5910.dtsi
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2020-11-11 20:30:36 +00:00
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@@ -81,19 +81,6 @@
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2020-05-28 13:56:17 +00:00
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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};
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-
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- reg_bt: regulator-bt {
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- pinctrl-names = "default";
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- pinctrl-0 = <&pinctrl_reg_bt>;
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- compatible = "regulator-fixed";
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- regulator-name = "bt";
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- gpio = <&gpio1 2 GPIO_ACTIVE_HIGH>;
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- startup-delay-us = <100>;
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- enable-active-high;
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- regulator-min-microvolt = <3300000>;
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- regulator-max-microvolt = <3300000>;
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- regulator-always-on;
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- };
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};
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2020-11-11 20:30:36 +00:00
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@@ -229,9 +216,14 @@
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2020-05-28 13:56:17 +00:00
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/* Sterling-LWB Bluetooth */
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&uart4 {
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pinctrl-names = "default";
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- pinctrl-0 = <&pinctrl_uart4>;
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+ pinctrl-0 = <&pinctrl_uart4>,<&pinctrl_bten>;
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uart-has-rtscts;
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status = "okay";
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+
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+ bluetooth {
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+ compatible = "brcm,bcm4330-bt";
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+ shutdown-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
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+ };
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};
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/* GPS */
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2020-11-11 20:30:36 +00:00
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@@ -286,6 +278,12 @@
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2020-05-28 13:56:17 +00:00
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>;
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};
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+ pinctrl_bten: btengrp {
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+ fsl,pins = <
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+ MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b1
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+ >;
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+ };
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+
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pinctrl_ecspi3: escpi3grp {
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fsl,pins = <
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MX6QDL_PAD_DISP0_DAT0__ECSPI3_SCLK 0x100b1
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2020-11-11 20:30:36 +00:00
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@@ -391,12 +389,6 @@
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2020-05-28 13:56:17 +00:00
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>;
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};
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- pinctrl_reg_bt: regbtgrp {
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- fsl,pins = <
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- MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x1b0b1
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- >;
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- };
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-
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pinctrl_reg_wl: regwlgrp {
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fsl,pins = <
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MX6QDL_PAD_GPIO_5__GPIO1_IO05 0x1b0b1
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