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rpi-base.inc: enable i2c-gpio overlay

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Adds support for software i2c controller on gpio pins

RPI_EXTRA_CONFIG += "\
dtoverlay=i2c-gpio,bus=7,i2c_gpio_sda=6,i2c_gpio_scl=5 \
"
Will configure a /dev/i2c-7 bus with sda=gpio#6 and slc=gpio#5

The overlay documentation can be found here:
https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README

Signed-off-by: Bernhard Guillon <Bernhard.Guillon@begu.org>
This commit is contained in:
Bernhard Guillon 2021-12-12 09:55:03 +01:00 committed by Andrei Gherzan
parent 9bd5f90229
commit 596b92e8d1
1 changed files with 1 additions and 0 deletions
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conf/machine/include/rpi-base.inc
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@ -31,6 +31,7 @@ RPI_KERNEL_DEVICETREE_OVERLAYS ?= " \
overlays/justboom-both.dtbo \
overlays/justboom-dac.dtbo \
overlays/justboom-digi.dtbo \
overlays/i2c-gpio.dtbo \
overlays/i2c-rtc.dtbo \
overlays/imx219.dtbo \
overlays/imx477.dtbo \