On a BeagleBone Black running Debian 8.1 / Linux 4.1.2-ti-r4
<https://rcn-ee.com/rootfs/bb.org/testing/2015-07-19/lxqt-4gb/>, I'd like
to be able to enable PWM on P8.13 and P8.19 using two different device tree
overlays rather that a single overlay.
The two overlays currently being used are show below. If the first overlay
for P8.13 is used, it will work correctly. If the second overlay for P8.19
is used, it will also work correctly. However, if both overlays are used at
the same time, only the first one activated will work correctly. The second
one will fail to function. I'd imagine the problem is related to fragment@2
in the overlays, but I can't figure out what needs to be done to make it
function correctly. Any help in figuring out how to solve the issue would
be greatly appreciated.
*Overlay for PWM on P8.13*
/dts-v1/;
/plugin/;
/{
compatible = "ti,beaglebone", "ti,beaglebone-black";
part-number = "bot_pwm_p8_13";
version = "00A0";
exclusive-use =
"P8.13",
"ehrpwm2B";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
bot_pwm_p8_13_pins: pinmux_bot_pwm_p8_13_pins {
pinctrl-single,pins = <
0x024 0x4
>;
};
};
};
fragment@1 {
target = <&epwmss2>;
__overlay__ {
status = "okay";
};
};
fragment@2 {
target = <&ehrpwm2>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&bot_pwm_p8_13_pins>;
status = "okay";
};
};
};
*Overlay for PWM onP8.19*
/dts-v1/;
/plugin/;
/{
compatible = "ti,beaglebone", "ti,beaglebone-black";
part-number = "bot_pwm_p8_19";
version = "00A0";
exclusive-use =
"P8.19",
"ehrpwm2A";
fragment@0 {
target = <&am33xx_pinmux>;
__overlay__ {
bot_pwm_p8_19_pins: pinmux_bot_pwm_p8_19_pins {
pinctrl-single,pins = <
0x020 0x4
>;
};
};
};
fragment@1 {
target = <&epwmss2>;
__overlay__ {
status = "okay";
};
};
fragment@2 {
target = <&ehrpwm2>;
__overlay__ {
pinctrl-names = "default";
pinctrl-0 = <&bot_pwm_p8_19_pins>;
status = "okay";
};
};
};
--
For more options, visit http://beagleboard.org/discuss
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