teensy41: pwm sample unable to build

[ric96]

I am trying to test pwm on teensy41, but i can't seem to build the sample. The sample code is untouched, I just added a teensy 41 specific overlay to output on teensy41's pin 2, which is EMC_04:

/ {
        pwmleds {
                compatible = "pwm-leds";
                external_pwm_led: external_pwm_led {
                        pwms = <&flexpwm4_pwm2 0 PWM_MSEC(20)>;
                };
        };

        aliases {
                pwm-led0 = &external_pwm_led;
        };

        pinmux_flexpwm4: pinmux_flexpwm4 {
                group0 {
                        pinmux = <&iomuxc_gpio_emc_04_flexpwm4_pwma2>;
                        drive-strength = "high";
                        bias-pull-down;
                        slew-rate = "fast";
                };
        };
};

&flexpwm4_pwm2 {
        status = "okay";
        pinctrl-0 = <&pinmux_flexpwm4>;
        pinctrl-names = "default";
};

I get the following error during build:

west build -b teensy41 blinky_pwm --build-dir teensy-pwm-test -p auto                         ✔  14:51:18   
[0/1] Re-running CMake...
Loading Zephyr default modules (Zephyr base (cached)).
-- Application: /home/sahaj/build/zephyrproject/blinky_pwm
-- Cache files will be written to: /home/sahaj/.cache/zephyr
-- Zephyr version: 3.0.99 (/home/sahaj/build/zephyrproject/zephyr)
-- Found west (found suitable version "0.13.0", minimum required is "0.7.1")
-- Board: teensy41
-- Found host-tools: zephyr 0.14.0 (/home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0)
-- Found dtc: /home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.6.0", minimum required is "1.4.6")
-- Found toolchain: zephyr 0.14.0 (/home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0)
-- Found BOARD.dts: /home/sahaj/build/zephyrproject/zephyr/boards/arm/teensy4/teensy41.dts
-- Found devicetree overlay: /home/sahaj/build/zephyrproject/blinky_pwm/boards/teensy41.overlay
-- Generated zephyr.dts: /home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h
-- Generated device_extern.h: /home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/device_extern.h
-- Including generated dts.cmake file: /home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/dts.cmake
Parsing /home/sahaj/build/zephyrproject/zephyr/Kconfig
Loaded configuration '/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/.config'
No change to configuration in '/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/.config'
No change to Kconfig header in '/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/autoconf.h'
Load components for MIMXRT1062:
driver_common component is included.
driver_reset component is included.
device_CMSIS component is included.
CMSIS_Include_core_cm component is included.
device_system component is included.
driver_lpuart component is included.
driver_igpio component is included.
driver_pwm component is included.
driver_cache_armv7_m7 component is included.
-- Configuring done
-- Generating done
-- Build files have been written to: /home/sahaj/build/zephyrproject/teensy-pwm-test
[42/54] Building C object zephyr/drivers/pwm/CMakeFiles/drivers__pwm.dir/pwm_mcux.c.obj
FAILED: zephyr/drivers/pwm/CMakeFiles/drivers__pwm.dir/pwm_mcux.c.obj 
ccache /home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DBOARD_FLASH_SIZE="CONFIG_FLASH_SIZE*1024" -DCPU_MIMXRT1062DVJ6A -DKERNEL -DNDEBUG -DXIP_BOOT_HEADER_ENABLE=1 -DXIP_EXTERNAL_FLASH -D_FORTIFY_SOURCE=2 -D__PROGRAM_START -D__ZEPHYR_SUPERVISOR__ -D__ZEPHYR__=1 -I/home/sahaj/build/zephyrproject/zephyr/include/zephyr -I/home/sahaj/build/zephyrproject/zephyr/include -I/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated -I/home/sahaj/build/zephyrproject/zephyr/soc/arm/nxp_imx/rt -I/home/sahaj/build/zephyrproject/modules/hal/cmsis/CMSIS/Core/Include -I/home/sahaj/build/zephyrproject/modules/hal/atmel/include -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/devices/MIMXRT1062 -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/devices/MIMXRT1062/drivers -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/devices/MIMXRT1062/xip -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/drivers/common -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/drivers/lpuart -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/drivers/igpio -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/drivers/pwm -I/home/sahaj/build/zephyrproject/modules/hal/nxp/mcux/mcux-sdk/drivers/cache/armv7-m7 -isystem /home/sahaj/build/zephyrproject/zephyr/lib/libc/minimal/include -isystem /home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/include -isystem /home/sahaj/build/zephyrproject/zephyr-sdk-0.14.0/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/10.3.0/include-fixed -Os -imacros /home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m7 -mthumb -mabi=aapcs -mfp16-format=ieee -imacros /home/sahaj/build/zephyrproject/zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=/home/sahaj/build/zephyrproject/blinky_pwm=CMAKE_SOURCE_DIR -fmacro-prefix-map=/home/sahaj/build/zephyrproject/zephyr=ZEPHYR_BASE -fmacro-prefix-map=/home/sahaj/build/zephyrproject=WEST_TOPDIR -ffunction-sections -fdata-sections -std=c99 -nostdinc -MD -MT zephyr/drivers/pwm/CMakeFiles/drivers__pwm.dir/pwm_mcux.c.obj -MF zephyr/drivers/pwm/CMakeFiles/drivers__pwm.dir/pwm_mcux.c.obj.d -o zephyr/drivers/pwm/CMakeFiles/drivers__pwm.dir/pwm_mcux.c.obj -c /home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c
In file included from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_macro.h:34,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/atomic.h:16,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/kernel_includes.h:21,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/kernel.h:17,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/init.h:11,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/device.h:29,
                 from /home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pwm.h:26,
                 from /home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c:10:
/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h:5157:64: warning: implicit declaration of function 'DT_N_S_pinmux_flexpwm4_S_group0_P_pinmux_FOREACH_PROP_ELEM'; did you mean 'DT_N_S_pinmux_flexpwm4_S_group0_FOREACH_RANGE'? [-Wimplicit-function-declaration]
 5157 | #define DT_N_S_pinmux_flexpwm4_FOREACH_CHILD_VARGS(fn, ...) fn(DT_N_S_pinmux_flexpwm4_S_group0, __VA_ARGS__)
      |                                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:67:26: note: in definition of macro '__DEBRACKET'
   67 | #define __DEBRACKET(...) __VA_ARGS__
      |                          ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:59:2: note: in expansion of macro '__GET_ARG2_DEBRACKET'
   59 |  __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
      |  ^~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:54:2: note: in expansion of macro '__COND_CODE'
   54 |  __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_macro.h:157:2: note: in expansion of macro 'Z_COND_CODE_1'
  157 |  Z_COND_CODE_1(_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2842:2: note: in expansion of macro 'COND_CODE_1'
 2842 |  COND_CODE_1(DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT), \
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:64:53: note: in expansion of macro '__DEBRACKET'
   64 | #define __GET_ARG2_DEBRACKET(ignore_this, val, ...) __DEBRACKET val
      |                                                     ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:59:2: note: in expansion of macro '__GET_ARG2_DEBRACKET'
   59 |  __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
      |  ^~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:54:2: note: in expansion of macro '__COND_CODE'
   54 |  __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_macro.h:157:2: note: in expansion of macro 'Z_COND_CODE_1'
  157 |  Z_COND_CODE_1(_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:142:2: note: in expansion of macro 'COND_CODE_1'
  142 |  COND_CODE_1(Z_PINCTRL_SKIP_STATE(state_idx, node_id), (),        \
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2004:2: note: in expansion of macro 'DT_CAT4'
 2004 |  DT_CAT4(node_id, _P_, prop, _FOREACH_PROP_ELEM)(fn)
      |  ^~~~~~~
/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h:5157:61: note: in expansion of macro 'DT_FOREACH_PROP_ELEM'
 5157 | #define DT_N_S_pinmux_flexpwm4_FOREACH_CHILD_VARGS(fn, ...) fn(DT_N_S_pinmux_flexpwm4_S_group0, __VA_ARGS__)
      |                                                             ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2991:24: note: in expansion of macro 'DT_N_S_pinmux_flexpwm4_FOREACH_CHILD_VARGS'
 2991 | #define DT_CAT(a1, a2) a1 ## a2
      |                        ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:1923:2: note: in expansion of macro 'DT_CAT'
 1923 |  DT_CAT(node_id, _FOREACH_CHILD_VARGS)(fn, __VA_ARGS__)
      |  ^~~~~~
/home/sahaj/build/zephyrproject/zephyr/soc/arm/nxp_imx/rt/pinctrl_rt10xx.h:92:3: note: in expansion of macro 'DT_FOREACH_CHILD_VARGS'
   92 |  {DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop),  \
      |   ^~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2999:41: note: in expansion of macro 'DT_N_S_soc_S_flexpwm_403e8000_S_pwm2_P_pinctrl_0_IDX_0_PH'
 2999 | #define DT_CAT6(a1, a2, a3, a4, a5, a6) a1 ## a2 ## a3 ## a4 ## a5 ## a6
      |                                         ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:1227:2: note: in expansion of macro 'DT_CAT6'
 1227 |  DT_CAT6(node_id, _P_, prop, _IDX_, idx, _PH)
      |  ^~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:1245:35: note: in expansion of macro 'DT_PHANDLE_BY_IDX'
 1245 | #define DT_PHANDLE(node_id, prop) DT_PHANDLE_BY_IDX(node_id, prop, 0)
      |                                   ^~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/soc/arm/nxp_imx/rt/pinctrl_rt10xx.h:92:26: note: in expansion of macro 'DT_PHANDLE'
   92 |  {DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop),  \
      |                          ^~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:145:2: note: in expansion of macro 'Z_PINCTRL_STATE_PINS_INIT'
  145 |  Z_PINCTRL_STATE_PINS_INIT(node_id, pinctrl_ ## state_idx)))
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_loops.h:1086:2: note: in expansion of macro 'Z_PINCTRL_STATE_PINS_DEFINE'
 1086 |  F(0, __VA_ARGS__)
      |  ^
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:99:36: note: in expansion of macro 'Z_UTIL_LISTIFY_1'
   99 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
      |                                    ^
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:238:2: note: in expansion of macro 'LISTIFY'
  238 |  LISTIFY(DT_NUM_PINCTRL_STATES(node_id),           \
      |  ^~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:252:38: note: in expansion of macro 'PINCTRL_DT_DEFINE'
  252 | #define PINCTRL_DT_INST_DEFINE(inst) PINCTRL_DT_DEFINE(DT_DRV_INST(inst))
      |                                      ^~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:99:36: note: in expansion of macro 'DT_N_INST_0_nxp_imx_pwm'
   99 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
      |                                    ^
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:98:26: note: in expansion of macro 'UTIL_PRIMITIVE_CAT'
   98 | #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
      |                          ^~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:305:31: note: in expansion of macro 'UTIL_CAT'
  305 | #define DT_INST(inst, compat) UTIL_CAT(DT_N_INST, DT_DASH(inst, compat))
      |                               ^~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2381:27: note: in expansion of macro 'DT_INST'
 2381 | #define DT_DRV_INST(inst) DT_INST(inst, DT_DRV_COMPAT)
      |                           ^~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:252:56: note: in expansion of macro 'DT_DRV_INST'
  252 | #define PINCTRL_DT_INST_DEFINE(inst) PINCTRL_DT_DEFINE(DT_DRV_INST(inst))
      |                                                        ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c:176:2: note: in expansion of macro 'PINCTRL_DT_INST_DEFINE'
  176 |  PINCTRL_DT_INST_DEFINE(n);       \
      |  ^~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h:54537:46: note: in expansion of macro 'PWM_DEVICE_INIT_MCUX'
54537 | #define DT_FOREACH_OKAY_INST_nxp_imx_pwm(fn) fn(0)
      |                                              ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:99:36: note: in expansion of macro 'DT_FOREACH_OKAY_INST_nxp_imx_pwm'
   99 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
      |                                    ^
/home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c:196:1: note: in expansion of macro 'DT_INST_FOREACH_STATUS_OKAY'
  196 | DT_INST_FOREACH_STATUS_OKAY(PWM_DEVICE_INIT_MCUX)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/soc/arm/nxp_imx/rt/pinctrl_rt10xx.h:93:33: error: 'Z_PINCTRL_STATE_PIN_INIT' undeclared here (not in a function)
   93 |   DT_FOREACH_PROP_ELEM, pinmux, Z_PINCTRL_STATE_PIN_INIT)}; \
      |                                 ^~~~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:67:26: note: in definition of macro '__DEBRACKET'
   67 | #define __DEBRACKET(...) __VA_ARGS__
      |                          ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:59:2: note: in expansion of macro '__GET_ARG2_DEBRACKET'
   59 |  __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
      |  ^~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:54:2: note: in expansion of macro '__COND_CODE'
   54 |  __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_macro.h:157:2: note: in expansion of macro 'Z_COND_CODE_1'
  157 |  Z_COND_CODE_1(_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2842:2: note: in expansion of macro 'COND_CODE_1'
 2842 |  COND_CODE_1(DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT), \
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:64:53: note: in expansion of macro '__DEBRACKET'
   64 | #define __GET_ARG2_DEBRACKET(ignore_this, val, ...) __DEBRACKET val
      |                                                     ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:59:2: note: in expansion of macro '__GET_ARG2_DEBRACKET'
   59 |  __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
      |  ^~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:54:2: note: in expansion of macro '__COND_CODE'
   54 |  __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_macro.h:157:2: note: in expansion of macro 'Z_COND_CODE_1'
  157 |  Z_COND_CODE_1(_flag, _if_1_code, _else_code)
      |  ^~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:142:2: note: in expansion of macro 'COND_CODE_1'
  142 |  COND_CODE_1(Z_PINCTRL_SKIP_STATE(state_idx, node_id), (),        \
      |  ^~~~~~~~~~~
/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h:5157:61: note: in expansion of macro 'DT_FOREACH_PROP_ELEM'
 5157 | #define DT_N_S_pinmux_flexpwm4_FOREACH_CHILD_VARGS(fn, ...) fn(DT_N_S_pinmux_flexpwm4_S_group0, __VA_ARGS__)
      |                                                             ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/devicetree.h:2991:24: note: in expansion of macro 'DT_N_S_pinmux_flexpwm4_FOREACH_CHILD_VARGS'
 2991 | #define DT_CAT(a1, a2) a1 ## a2
      |                        ^~
/home/sahaj/build/zephyrproject/zephyr/soc/arm/nxp_imx/rt/pinctrl_rt10xx.h:92:3: note: in expansion of macro 'DT_FOREACH_CHILD_VARGS'
   92 |  {DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop),  \
      |   ^~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:145:2: note: in expansion of macro 'Z_PINCTRL_STATE_PINS_INIT'
  145 |  Z_PINCTRL_STATE_PINS_INIT(node_id, pinctrl_ ## state_idx)))
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_loops.h:1086:2: note: in expansion of macro 'Z_PINCTRL_STATE_PINS_DEFINE'
 1086 |  F(0, __VA_ARGS__)
      |  ^
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:99:36: note: in expansion of macro 'Z_UTIL_LISTIFY_1'
   99 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
      |                                    ^
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:238:2: note: in expansion of macro 'LISTIFY'
  238 |  LISTIFY(DT_NUM_PINCTRL_STATES(node_id),           \
      |  ^~~~~~~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/drivers/pinctrl.h:252:38: note: in expansion of macro 'PINCTRL_DT_DEFINE'
  252 | #define PINCTRL_DT_INST_DEFINE(inst) PINCTRL_DT_DEFINE(DT_DRV_INST(inst))
      |                                      ^~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c:176:2: note: in expansion of macro 'PINCTRL_DT_INST_DEFINE'
  176 |  PINCTRL_DT_INST_DEFINE(n);       \
      |  ^~~~~~~~~~~~~~~~~~~~~~
/home/sahaj/build/zephyrproject/teensy-pwm-test/zephyr/include/generated/devicetree_unfixed.h:54537:46: note: in expansion of macro 'PWM_DEVICE_INIT_MCUX'
54537 | #define DT_FOREACH_OKAY_INST_nxp_imx_pwm(fn) fn(0)
      |                                              ^~
/home/sahaj/build/zephyrproject/zephyr/include/zephyr/sys/util_internal.h:99:36: note: in expansion of macro 'DT_FOREACH_OKAY_INST_nxp_imx_pwm'
   99 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
      |                                    ^
/home/sahaj/build/zephyrproject/zephyr/drivers/pwm/pwm_mcux.c:196:1: note: in expansion of macro 'DT_INST_FOREACH_STATUS_OKAY'
  196 | DT_INST_FOREACH_STATUS_OKAY(PWM_DEVICE_INIT_MCUX)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /home/sahaj/.local/bin/cmake --build /home/sahaj/build/zephyrproject/teensy-pwm-test

[henrikbrixandersen]

You need to put the pinmux under &pinctrl:

/ {
        pwmleds {
                compatible = "pwm-leds";
                external_pwm_led: external_pwm_led {
                        pwms = <&flexpwm4_pwm2 0 PWM_MSEC(20)>;
                };
        };

        aliases {
                pwm-led0 = &external_pwm_led;
        };
};

&pinctrl {
        pinmux_flexpwm4: pinmux_flexpwm4 {
                group0 {
                        pinmux = <&iomuxc_gpio_emc_04_flexpwm4_pwma2>;
                        drive-strength = "high";
                        bias-pull-down;
                        slew-rate = "fast";
                };
        };
};

&flexpwm4_pwm2 {
        status = "okay";
        pinctrl-0 = <&pinmux_flexpwm4>;
        pinctrl-names = "default";
};

[Mjenz]

Hey, how can you figure out what pinmuux and pwms address corresponds to the pin you want to put pwm on for the teensy 4.1? I can't find any resources with an applicable table or whatnot.

[ric96]

Hi, thanks for the help. Sorry i didn't realize that the discussion tab had appeared, I just posted this as an issue out of habit. I had a feeling it was PEBKAC.
The final overlay i used looks something like this:

/ {
        pwmleds {
                compatible = "pwm-leds";
                external_pwm_led: external_pwm_led {
                        pwms = <&flexpwm4_pwm2 0 PWM_MSEC(20)>;
                };
        };

        aliases {
                pwm-led0 = &external_pwm_led;
        };

};

&pinctrl{

        pinmux_flexpwm4: pinmux_flexpwm4 {
                group0 {
                        pinmux = <&iomuxc_gpio_emc_04_flexpwm4_pwma2>;
                        drive-strength = "r0-4";
                        bias-pull-up;
                        bias-pull-up-value = "47k";
                        slew-rate = "slow";
                        nxp,speed = "100-mhz";
                };
        };

};

&flexpwm4_pwm2 {
        status = "okay";
        pinctrl-0 = <&pinmux_flexpwm4>;
        pinctrl-names = "default";
};

Also I'm curious why do the pwm pinctrl->pinmux bits have to be manually added, its not like they are too dynamic. The -pinctrl.dtsi in board folder already has pinmuxes for all other interfaces, even the ones that overlap.
If these are defined by default it saves time to enable them manually and go reference NXP HAL's pintctrl.dtsi each time.

[henrikbrixandersen]

The board definition should only contain "fixed" interfaces. If a board pin does not have a fixed function in the board design (which applies to many of the pins on development boards), the board definition should not define its use.

[ric96]

just to clarify i am talking about -pinctrl.dtsi and not board.dtsi
For example, in boards/arm/teensy4/teensy4-pinctrl.dtsi both flexcan2 and lpuart6 are defined, they use conflicting pins:

flexcan2:

zephyr/boards/arm/teensy4/teensy4-pinctrl.dtsi

Line 65 in 83c79d1

/* FLEXCAN2 TX, RX on Teensy-Pins 1/0 */

lpuart6:

zephyr/boards/arm/teensy4/teensy4-pinctrl.dtsi

Line 294 in 83c79d1

/* LPUART6 TX/RX on Teensy-Pins 1/0 */

so why not add the pwm pinmux as well?

[pirate21213]

I'm trying to use this as a reference and I'm at the point where I get a build error even when I just use the exact overlay you posted, any ideas as to why?

Error: teensy41.dts.pre.tmp:714.50-51 syntax error FATAL ERROR: Unable to parse input tree CMake Error at C:/Users/name/.platformio/packages/framework-zephyr/cmake/dts.cmake:225 (message): command failed with return code: 1

I managed to follow it down to this line, it is able to parse without it, am I forgetting something?

pwms = <&flexpwm4_pwm2 0 PWM_MSEC(20)>;

[ekwus]

Hi

I'm struggling to get PWM to work on the teensy. I can get my app to build using the below overlay, but can't get any signal to come out of the pin! My code snippet is as below

static const struct device *leds_dev = DEVICE_DT_GET_ANY(pwm_leds);

static const struct device *leds_test = DEVICE_DT_GET_ANY(gpio_leds);

led_set_brightness(leds_dev, 0, 75); // This doesn't work

led_set_brightness(leds_test, 0, 75);  // This works

I've mapped the iomux through from the reference manual and &iomuxc_gpio_b1_03_flexpwm2_pwmb3 matches with the correct control reg and pin mode of Alt6 which is 110 ALT6 — Select mux mode: ALT6 mux port: FLEXPWM2_PWMB03 of instance: flexpwm2

Really can't figure out what to try next!

Thanks for any help or pointers.

Cheers

Dave

/ {
    statusled: status_led {
		compatible = "power-switch";
		/* using built-in LED pin for demonstration */
		gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
	};

    leds {
        compatible = "gpio-leds";
        led0: led_0 {
            gpios = <&gpio2 3 GPIO_ACTIVE_HIGH>;
            label = "User LED";
        };
    };

    pwmleds {
        compatible = "pwm-leds";
        external_pwm_led: external_pwm_led {
            /* Update the channel (the second value) to match the PWM channel for pin 37.
               Here we set a period of 1000000 µs (1 Hz) and assume a normal polarity. */
            pwms = <&flexpwm2_pwm3 0 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
        };
    };

    aliases {
        led0 = &led0;
        pwm1 = &external_pwm_led;
        sram-ext = &aps6404l;
    };

    chosen {
        zephyr,console = &cdc_acm_uart0;
    };
};

&flexpwm2_pwm3 {
    status = "okay";
    pinctrl-0 = <&pinmux_flexpwm2_pwm3>;
    pinctrl-names = "default";
};

&flexspi2 {
	status = "okay";
	pinctrl-0 = <&pinmux_flexspi2>;
	pinctrl-names = "default";
	reg = <0x402a4000 0x4000>, <0x70000000 DT_SIZE_M(8)>;
	/* APS6404L is 8MB, 64MBit pSRAM */
	aps6404l: aps6404l@0 {
		compatible = "nxp,imx-flexspi-aps6404l";
		size = <DT_SIZE_M(8 * 8)>;
		reg = <0>;
		spi-max-frequency = <DT_FREQ_M(109)>;
		status = "okay";
	};
};

&pinctrl {
	/* FLEXSPI2 for optional PSRAM/FLASH on TEENSY41*/
	pinmux_flexspi2: pinmux_flexspi2 {
		group0 {
			pinmux = <&iomuxc_gpio_emc_24_flexspi2_a_ss0_b>,
				<&iomuxc_gpio_emc_25_flexspi2_a_sclk>,
				<&iomuxc_gpio_emc_26_flexspi2_a_data0>,
				<&iomuxc_gpio_emc_27_flexspi2_a_data1>,
				<&iomuxc_gpio_emc_28_flexspi2_a_data2>,
				<&iomuxc_gpio_emc_29_flexspi2_a_data3>;
			drive-strength = "r0-6";
			slew-rate = "fast";
			nxp,speed = "100-mhz";
			input-enable;
		};
	};

    pinmux_flexpwm2_pwm3: pinmux_flexpwm2_pwm3 {
        group0 {
                pinmux = <&iomuxc_gpio_b1_03_flexpwm2_pwmb3>; 
                drive-strength = "r0-4";
                slew-rate = "fast";
                nxp,speed = "100-mhz";
        };
    };
};

&usb1 {
    status = "okay";
    cdc_acm_uart0: cdc_acm_uart0 {
        compatible = "zephyr,cdc-acm-uart";
        label = "CDC_ACM_0";
    };
};