openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: dts: bcm2837-rpi-3-b: add GPIO expander 

Add a description of the RPi3 GPIO expander that the VC4 firmware controls.

Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Baruch Siach 2018-02-20 14:19:35 +02:00 committed by Eric Anholt
parent b0c07c5af6
commit 4d5b2eaf3c
1 changed files with 17 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/arm/boot/dts/bcm2837-rpi-3-b.dts
View File

@ -25,6 +25,23 @@ act {
};
};
&firmware {
expgpio: gpio {
compatible = "raspberrypi,firmware-gpio";
gpio-controller;
#gpio-cells = <2>;
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 */
&uart0 {
pinctrl-names = "default";