[Yocto] [Broadcom 4375 PCIE] [i.mx8mm] Build synaptics 4375 driver with Yocto image failed

[Mater]

Board: Myir i.mx8mm

I would like to package synaptics version of 4375 wifi driver with Yocto image.

• If build this PCIE  or SDIO version driver via "SDK", it is fine for finished & create .ko file
• But if build this PCIE version driver via Yocto process(bitbake), Yocto would show error about " In function 'dhdpcie_bus_register': <command-line>: error: expected ')' before 'pcie'".
• Build this SDIO version driver via Yocto process(bitbake), it is normal to finish to create .ko file.
  
  From the following info, this error could expansion of macro failed. However, I didn't modify dhd_pcie_linux.c & pci.h code.
  

  Key error message

  | /home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work/myd_imx8mm-poky-linux/synaptics4375-linux/1.0-r0/synaptics4375-linux-1.0/dhd_pcie_linux.c: In function 'dhdpcie_bus_register': | <command-line>: error: expected ')' before 'pcie' | /home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work-shared/myd-imx8mm/kernel-source/include/linux/pci.h:1352:45: note: in expansion of macro 'KBUILD_MODNAME' | 1352 | __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME) | | ^~~~~~~~~~~~~~ | /home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work/myd_imx8mm-poky-linux/synaptics4375-linux/1.0-r0/synaptics4375-linux-1.0/dhd_pcie_linux.c:1417:16: note: in expansion of macro 'pci_register_driver' | 1417 | if (!(error = pci_register_driver(&dhdpcie_driver))) { | | ^~~~~~~~~~~~~~~~~~~ | CC [M] /home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work/myd_imx8mm-poky-linux/synaptics4375-linux/1.0-r0/synaptics4375-linux-1.0/dhd_linux_lb.o | /home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work-shared/myd-imx8mm/kernel-source/scripts/Makefile.build:265: recipe for target '/home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work/myd_imx8mm-poky-linux/synaptics4375-linux/1.0-r0/synaptics4375-linux-1.0/dhd_pcie_linux.o' failed | make[3]: *** [/home/valen/work/MYD-C8MMX-Yocto/build-xwayland/tmp/work/myd_imx8mm-poky-linux/synaptics4375-linux/1.0-r0/synaptics4375-linux-1.0/dhd_pcie_linux.o] Error 1 | make[3]: *** Waiting for unfinished jobs....

Detail Yocto build log for this is as log.do_compile.18399.log.

And Broadcom 4375 driver Makefile (Makefile.log => Makefile). It is adjusted by customer.

• Adjust LINUXDIR to Linux kernel builder path.
• Build pcie : make bcmdhd_pcie
• Build sdio : make bcmdhd_sdio

Do someone touch this similar problem? Thanks.

[joanxie]

could you share the detailed build steps with me?

[Mater]

Dear Joanxie,

Thank you for your respond

I just found customer Makefile issue (I have already got trouble with this issue about two weeks)

In this driver, I shouldn't set CONFIG_BCMDHD_MULTIPLE_DRIVER=Y to create different naming .ko for PCIE / SDIO at the same time, and it would cause this kind of error. Maybe DHDFLAGS settings becomes wrong after that.

Besides, I found the other method.

1. Set CONFIG_BCMDHD_MULTIPLE_DRIVER as None

2. Build SDIO version then rename .ko

3. Build PCIE version.

Finally, thank you for help^^