From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753168AbaJPU04 (ORCPT ); Thu, 16 Oct 2014 16:26:56 -0400 Received: from mail-lb0-f173.google.com ([209.85.217.173]:37005 "EHLO mail-lb0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753150AbaJPU0l (ORCPT ); Thu, 16 Oct 2014 16:26:41 -0400 From: Marek Belisko To: arnd@arndb.de, gregkh@linuxfoundation.org Cc: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, grant.likely@linaro.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Marek Belisko , "H. Nikolaus Schaller" Subject: [PATCH 2/2] Documentation: devicetree: Add bindings for Wi2Wi w2sg0004 gps Date: Thu, 16 Oct 2014 22:26:23 +0200 Message-Id: <1413491183-15018-2-git-send-email-marek@goldelico.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1413491183-15018-1-git-send-email-marek@goldelico.com> References: <1413491183-15018-1-git-send-email-marek@goldelico.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: H. Nikolaus Schaller Signed-off-by: Marek Belisko --- .../devicetree/bindings/misc/wi2wi,w2sg0004.txt | 44 ++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/wi2wi,w2sg0004.txt diff --git a/Documentation/devicetree/bindings/misc/wi2wi,w2sg0004.txt b/Documentation/devicetree/bindings/misc/wi2wi,w2sg0004.txt new file mode 100644 index 0000000..e144441 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/wi2wi,w2sg0004.txt @@ -0,0 +1,44 @@ +Wi2Wi GPS module connected through UART + +Required properties: +- compatible: wi2wi,w2sg0004 or wi2wi,w2sg0084 +- pinctrl: specify two states (default and monitor). One is the default (UART) mode + and the other is for monitoring the RX line by an interrupt +- on-off-gpio: the GPIO that controls the module's on-off toggle input + +Optional properties: +- lna-suppy: an (optional) LNA regulator that is enabled together with the GPS receiver + +example: + + gps_receiver: w2sg0004 { + compatible = "wi2wi,w2sg0004"; + gpio-controller; + #gpio-cells = <2>; + + pinctrl-names = "default", "monitor"; + pinctrl-0 = <&uart2_pins>; + pinctrl-1 = <&uart2_rx_irq_pins>; + + interrupt-parent = <&gpio5>; + interrupts = <19 IRQ_TYPE_EDGE_FALLING>; /* GPIO_147: RX - trigger on arrival of start bit */ + lna-supply = <&vsim>; /* LNA regulator */ + on-off-gpio = <&gpio5 17 0>; /* GPIO_145: trigger for turning on/off w2sg0004 */ + +&pinmux { + + uart2_pins: pinmux_uart2_pins { + pinctrl-single,pins = < + 0x14a (PIN_INPUT | MUX_MODE0) /* uart2_tx.uart2_rx */ + 0x148 (PIN_OUTPUT | MUX_MODE0) /* uart2_tx.uart2_tx */ + >; + }; + + uart2_rx_irq_pins: pinmux_uart2_rx_irq_pins { + pinctrl-single,pins = < + /* switch RX to GPIO so that we can get interrupts by the start bit */ + 0x14a (PIN_INPUT | MUX_MODE4) /* uart2_tx.uart2_rx */ + >; + }; + +} -- 1.9.1