From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baruch Siach Subject: [PATCH v3 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander Date: Tue, 16 Jan 2018 14:45:10 +0200 Message-ID: <8ba2147dc08bb50a65b49ca2142f7710e1635d20.1516105893.git.baruch@tkos.co.il> References: Return-path: In-Reply-To: Sender: linux-gpio-owner@vger.kernel.org To: Dave Stevenson , Eric Anholt , Stefan Wahren , Linus Walleij Cc: devicetree@vger.kernel.org, Baruch Siach , linux-gpio@vger.kernel.org, Michael Zoran , linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Rob Herring , Frank Rowand List-Id: devicetree@vger.kernel.org Add a description of the RPi3 GPIO expander that the VC4 firmware controls. Signed-off-by: Baruch Siach --- v3: * List GPIO names one per line. v2: * Move GPIO expander node out of the soc container * Rename compatible string * Add gpio-line-names property --- arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts index b44b3b5af00d..8cd93425ffe3 100644 --- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts +++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts @@ -23,6 +23,22 @@ gpios = <&gpio 47 0>; }; }; + + expgpio: gpio-expander { + compatible = "raspberrypi,firmware-gpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + gpio-line-names = "BT_ON", + "WL_ON", + "STATUS_LED", + "LAN_RUN", + "HPD_N", + "CAM_GPIO0", + "CAM_GPIO1", + "PWR_LOW_N"; + status = "okay"; + }; }; /* uart0 communicates with the BT module */ -- 2.15.1