Hi Niklas, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git controller/dw-rockchip head: a47c73d6a884edf2a8b09015596744a495c6a236 commit: 56825f5946a0da29658fa8e768c8706dffdac82b [2/3] PCI: dw-rockchip: Replace PERST# sleep time with proper macro config: arm-randconfig-003-20250531 (https://download.01.org/0day-ci/archive/20250531/202505310520.ElO2YbM3-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250531/202505310520.ElO2YbM3-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202505310520.ElO2YbM3-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/pci/controller/dwc/pcie-dw-rockchip.c: In function 'rockchip_pcie_start_link': >> drivers/pci/controller/dwc/pcie-dw-rockchip.c:227:9: error: 'PCIE_T_PVPERL_MS' undeclared (first use in this function); did you mean 'PCIE_ATU_TYPE_MSG'? msleep(PCIE_T_PVPERL_MS); ^~~~~~~~~~~~~~~~ PCIE_ATU_TYPE_MSG drivers/pci/controller/dwc/pcie-dw-rockchip.c:227:9: note: each undeclared identifier is reported only once for each function it appears in vim +227 drivers/pci/controller/dwc/pcie-dw-rockchip.c 208 209 static int rockchip_pcie_start_link(struct dw_pcie *pci) 210 { 211 struct rockchip_pcie *rockchip = to_rockchip_pcie(pci); 212 213 /* Reset device */ 214 gpiod_set_value_cansleep(rockchip->rst_gpio, 0); 215 216 rockchip_pcie_enable_ltssm(rockchip); 217 218 /* 219 * PCIe requires the refclk to be stable for 100µs prior to releasing 220 * PERST. See table 2-4 in section 2.6.2 AC Specifications of the PCI 221 * Express Card Electromechanical Specification, 1.1. However, we don't 222 * know if the refclk is coming from RC's PHY or external OSC. If it's 223 * from RC, so enabling LTSSM is the just right place to release #PERST. 224 * We need more extra time as before, rather than setting just 225 * 100us as we don't know how long should the device need to reset. 226 */ > 227 msleep(PCIE_T_PVPERL_MS); 228 gpiod_set_value_cansleep(rockchip->rst_gpio, 1); 229 230 return 0; 231 } 232 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
