Hi Stanislav, Thank you for the patch! Yet something to improve: [auto build test ERROR on bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9] url: https://github.com/0day-ci/linux/commits/Stanislav-Spassov/Improve-PCI-device-post-reset-readiness-polling/20200303-043307 base: bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 config: arm-multi_v5_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/pci/controller/pci-mvebu.c: In function 'mvebu_pcie_powerup': >> drivers/pci/controller/pci-mvebu.c:930:22: error: 'PCI_PM_D3COLD_WAIT' undeclared (first use in this function); did you mean 'PCI_PM_D3HOT_DELAY'? u32 reset_udelay = PCI_PM_D3COLD_WAIT * 1000; ^~~~~~~~~~~~~~~~~~ PCI_PM_D3HOT_DELAY drivers/pci/controller/pci-mvebu.c:930:22: note: each undeclared identifier is reported only once for each function it appears in vim +930 drivers/pci/controller/pci-mvebu.c 49cb1f718360f8 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 915 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 916 /* d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 917 * Power up a PCIe port. PCIe requires the refclk to be stable for 100µs d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 918 * prior to releasing PERST. See table 2-4 in section 2.6.2 AC Specifications d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 919 * of the PCI Express Card Electromechanical Specification, 1.1. d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 920 */ d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 921 static int mvebu_pcie_powerup(struct mvebu_pcie_port *port) d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 922 { d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 923 int ret; d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 924 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 925 ret = clk_prepare_enable(port->clk); d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 926 if (ret < 0) d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 927 return ret; d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 928 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 929 if (port->reset_gpio) { 8ed81ec82a8c57 drivers/pci/host/pci-mvebu.c Lucas Stach 2017-02-02 @930 u32 reset_udelay = PCI_PM_D3COLD_WAIT * 1000; d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 931 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 932 of_property_read_u32(port->dn, "reset-delay-us", d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 933 &reset_udelay); d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 934 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 935 udelay(100); d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 936 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 937 gpiod_set_value_cansleep(port->reset_gpio, 0); d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 938 msleep(reset_udelay / 1000); d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 939 } d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 940 d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 941 return 0; d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 942 } d609a8d8e88a42 drivers/pci/host/pci-mvebu.c Russell King 2015-10-03 943 :::::: The code at line 930 was first introduced by commit :::::: 8ed81ec82a8c57c3a6ad69b4c4d3e4801163c256 PCI: mvebu: Change delay after reset to the PCIe spec mandated 100ms :::::: TO: Lucas Stach <l.stach@xxxxxxxxxxxxxx> :::::: CC: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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