Hi Sean,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/timers/core]
[also build test ERROR on pwm/for-next linus/master v5.14-rc7 next-20210826]
[cannot apply to xlnx/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Sean-Anderson/dt-bindings-pwm-Add-Xilinx-AXI-Timer/20210827-052011
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 127c92feb74a6721f62587f1b89128808f049cf1
config: s390-allmodconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/f36eeb054cb36e73651539fddae480083ce799e4
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sean-Anderson/dt-bindings-pwm-Add-Xilinx-AXI-Timer/20210827-052011
        git checkout f36eeb054cb36e73651539fddae480083ce799e4
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   s390-linux-ld: kernel/dma/coherent.o: in function `dma_init_coherent_memory':
   coherent.c:(.text+0xdc): undefined reference to `memremap'
   s390-linux-ld: coherent.c:(.text+0x1c2): undefined reference to `memunmap'
   s390-linux-ld: kernel/dma/coherent.o: in function `dma_declare_coherent_memory':
   coherent.c:(.text+0x6be): undefined reference to `memunmap'
   s390-linux-ld: drivers/irqchip/irq-al-fic.o: in function `al_fic_init_dt':
   irq-al-fic.c:(.init.text+0x62): undefined reference to `of_iomap'
   s390-linux-ld: irq-al-fic.c:(.init.text+0x368): undefined reference to `iounmap'
   s390-linux-ld: drivers/clk/clk-fixed-mmio.o: in function `fixed_mmio_clk_setup':
   clk-fixed-mmio.c:(.text+0x3c): undefined reference to `of_iomap'
   s390-linux-ld: clk-fixed-mmio.c:(.text+0x7e): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_init':
   timer-of.c:(.init.text+0xc4): undefined reference to `of_iomap'
   s390-linux-ld: timer-of.c:(.init.text+0x5aa): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-of.o: in function `timer_of_cleanup':
   timer-of.c:(.init.text+0x71a): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-microchip-pit64b.o: in function `mchp_pit64b_dt_init_timer':
   timer-microchip-pit64b.c:(.init.text+0x52c): undefined reference to `of_iomap'
   s390-linux-ld: timer-microchip-pit64b.c:(.init.text+0xa0e): undefined reference to `iounmap'
   s390-linux-ld: drivers/clocksource/timer-xilinx.o: in function `xilinx_timer_init':
>> timer-xilinx.c:(.init.text+0x1ca): undefined reference to `of_iomap'
>> s390-linux-ld: timer-xilinx.c:(.init.text+0x804): undefined reference to `iounmap'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org