linux-kernel - [PATCHv2 11/11] ARM: dts: N9/N950: add bluetooth

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Date:   Tue, 21 Mar 2017 23:32:16 +0100
From:   Sebastian Reichel <sre@...nel.org>
To:     Sebastian Reichel <sre@...nel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Samuel Thibault <samuel.thibault@...-lyon.org>,
        Pavel Machek <pavel@....cz>, Tony Lindgren <tony@...mide.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>,
        Mark Rutland <mark.rutland@....com>,
        linux-bluetooth@...r.kernel.org, linux-serial@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCHv2 11/11] ARM: dts: N9/N950: add bluetooth

The Nokia N950 and N9 have a wl1271 (with nokia bootloader) bluetooth
module connected to second UART.

Signed-off-by: Sebastian Reichel <sre@...nel.org>
---
Changes since PATCHv1:
 - update compatible string
---
 arch/arm/boot/dts/omap3-n950-n9.dtsi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index 5d8c4b4a4205..df3366fa5409 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -58,6 +58,13 @@
 			pinctrl-0 = <&debug_leds>;
 		};
 	};
+
+	/* controlled (enabled/disabled) directly by wl1271 */
+	vctcxo: vctcxo {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <38400000>;
+	};
 };
 
 &omap3_pmx_core {
@@ -125,6 +132,15 @@
 			OMAP3_CORE1_IOPAD(0x210a, PIN_OUTPUT | MUX_MODE4)            /* gpio_93 (cmt_apeslpx) */
 		>;
 	};
+
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2174, PIN_INPUT_PULLUP | MUX_MODE0)		/* uart2_cts */
+			OMAP3_CORE1_IOPAD(0x2176, PIN_OUTPUT | MUX_MODE0)		/* uart2_rts */
+			OMAP3_CORE1_IOPAD(0x2178, PIN_OUTPUT | MUX_MODE0)		/* uart2_tx */
+			OMAP3_CORE1_IOPAD(0x217a, PIN_INPUT | MUX_MODE0)		/* uart2_rx */
+		>;
+	};
 };
 
 &omap3_pmx_core2 {
@@ -435,3 +451,19 @@
 &ssi_port2 {
 	status = "disabled";
 };
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+
+	bluetooth {
+		compatible = "ti,wl1271-bluetooth-nokia", "nokia,h4p-bluetooth";
+
+		reset-gpios = <&gpio1 26 GPIO_ACTIVE_LOW>; /* 26 */
+		host-wakeup-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* 101 */
+		bluetooth-wakeup-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; /* 37 */
+
+		clocks = <&vctcxo>;
+		clock-names = "sysclk";
+	};
+};
-- 
2.11.0