[PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander
From: baruch@tkos.co.il (Baruch Siach)
Date: 2018-01-02 13:19:21
Also in:
linux-devicetree, linux-gpio
Subsystem:
the rest · Maintainer:
Linus Torvalds
Possibly related (same subject, not in this thread)
- 2018-01-04 · Re: [PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander · Peter Robinson <hidden>
- 2018-01-03 · Re: [PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander · Phil Elwell <hidden>
- 2018-01-03 · Re: [PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander · Stefan Wahren <hidden>
- 2018-01-02 · Re: [PATCH 4/4] ARM: dts: bcm2837-rpi-3-b: add GPIO expander · Stefan Wahren <hidden>
Add a description of the RPi3 GPIO expander that the VC4 firmware controls. Signed-off-by: Baruch Siach <baruch@tkos.co.il> --- arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 10 ++++++++++ 1 file changed, 10 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..09dca48da2bd 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts@@ -23,6 +23,16 @@ gpios = <&gpio 47 0>; }; }; + + soc { + expgpio: expgpio { + compatible = "brcm,bcm2835-expgpio"; + gpio-controller; + #gpio-cells = <2>; + firmware = <&firmware>; + status = "okay"; + }; + }; }; /* uart0 communicates with the BT module */
--
2.15.1