Hi,
My project makes use of P9-15 as a pull-up input. I am following rcn-ee
kernel releases and run 4.0.4.
0. can I use the same dtb file for diffrent kernel version from 3.19 -
4.0.4 ?
In any case I prefer to provide sources. so I came up with this small
script to build the dtb and use it.
P9-15-pull-up.dtsi :
/{
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
pinctrl_test: P9_15_pullup_Pins {
pinctrl-single,pins = <
0x040 0x37 /* P9_15 16 INPUT MODE7 pullup */
>;
};
};
};
fragment@1 {
__overlay__ {
test_helper: helper {
compatible = "bone-pinmux-helper";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_test>;
status = "okay";
};
};
};
};
generate_dtb_for_p9_15.sh :
#!/bin/sh
pushd /tmp/
git clone https://github.com/RobertCNelson/dtb-rebuilder.git
[ ! -f 'src/arm/am335x-boneblack.dts' ] && echo 'Missing
src/arm/am335x-boneblack.dts' && exit 1
cat << EOF >>'src/arm/am335x-boneblack.dts'
#include "P9-15-pull-up.dtsi"
#include "am335x-cape-rtc-ds1307.dtsi"
#include "i2c-1.dtsi"
EOF
make
/bin/cp src/arm/am335x-boneblack.dtb /boot/dtbs/
popd
Some questions:
1. Are the files in order?
2.must I run then when ever I upgrade a kernel for example from 3.19 -> 4.0
?
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