Hi Lars-Peter, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/goldfish android-3.18 head: 57d6a2ad5af7193a282c02b8d225b376ccb48d49 commit: e4bd5cd531164c7ae9d63be855309ed0886c3f0e [220/423] adv7604: Initialize drive strength to default when using DT config: x86_64-randconfig-a016-20210213 (attached as .config) compiler: gcc-5 (Ubuntu 5.5.0-12ubuntu1) 5.5.0 20171010 reproduce (this is a W=1 build): git remote add android-goldfish https://android.googlesource.com/kernel/goldfish git fetch --no-tags android-goldfish android-3.18 git checkout e4bd5cd531164c7ae9d63be855309ed0886c3f0e # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/media/i2c/adv7604.c: In function 'adv7604_parse_dt': state->pdata.dr_str_data = ADV76XX_DR_STR_MEDIUM_HIGH; ^ drivers/media/i2c/adv7604.c:2741:29: note: each undeclared identifier is reported only once for each function it appears in vim +/ADV76XX_DR_STR_MEDIUM_HIGH +2741 drivers/media/i2c/adv7604.c 2682 2683 static int adv7604_parse_dt(struct adv7604_state *state) 2684 { 2685 struct v4l2_of_endpoint bus_cfg; 2686 struct device_node *endpoint; 2687 struct device_node *np; 2688 unsigned int flags; 2689 2690 np = state->i2c_clients[ADV7604_PAGE_IO]->dev.of_node; 2691 2692 /* Parse the endpoint. */ 2693 endpoint = of_graph_get_next_endpoint(np, NULL); 2694 if (!endpoint) 2695 return -EINVAL; 2696 2697 v4l2_of_parse_endpoint(endpoint, &bus_cfg); 2698 of_node_put(endpoint); 2699 2700 flags = bus_cfg.bus.parallel.flags; 2701 2702 if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) 2703 state->pdata.inv_hs_pol = 1; 2704 2705 if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) 2706 state->pdata.inv_vs_pol = 1; 2707 2708 if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) 2709 state->pdata.inv_llc_pol = 1; 2710 2711 if (bus_cfg.bus_type == V4L2_MBUS_BT656) { 2712 state->pdata.insert_av_codes = 1; 2713 state->pdata.op_656_range = 1; 2714 } 2715 2716 /* Disable the interrupt for now as no DT-based board uses it. */ 2717 state->pdata.int1_config = ADV7604_INT1_CONFIG_DISABLED; 2718 2719 /* Use the default I2C addresses. */ 2720 state->pdata.i2c_addresses[ADV7604_PAGE_AVLINK] = 0x42; 2721 state->pdata.i2c_addresses[ADV7604_PAGE_CEC] = 0x40; 2722 state->pdata.i2c_addresses[ADV7604_PAGE_INFOFRAME] = 0x3e; 2723 state->pdata.i2c_addresses[ADV7604_PAGE_ESDP] = 0x38; 2724 state->pdata.i2c_addresses[ADV7604_PAGE_DPP] = 0x3c; 2725 state->pdata.i2c_addresses[ADV7604_PAGE_AFE] = 0x26; 2726 state->pdata.i2c_addresses[ADV7604_PAGE_REP] = 0x32; 2727 state->pdata.i2c_addresses[ADV7604_PAGE_EDID] = 0x36; 2728 state->pdata.i2c_addresses[ADV7604_PAGE_HDMI] = 0x34; 2729 state->pdata.i2c_addresses[ADV7604_PAGE_TEST] = 0x30; 2730 state->pdata.i2c_addresses[ADV7604_PAGE_CP] = 0x22; 2731 state->pdata.i2c_addresses[ADV7604_PAGE_VDP] = 0x24; 2732 2733 /* Hardcode the remaining platform data fields. */ 2734 state->pdata.disable_pwrdnb = 0; 2735 state->pdata.disable_cable_det_rst = 0; 2736 state->pdata.default_input = -1; 2737 state->pdata.blank_data = 1; 2738 state->pdata.alt_data_sat = 1; 2739 state->pdata.op_format_mode_sel = ADV7604_OP_FORMAT_MODE0; 2740 state->pdata.bus_order = ADV7604_BUS_ORDER_RGB; 2742 state->pdata.dr_str_clk = ADV76XX_DR_STR_MEDIUM_HIGH; 2743 state->pdata.dr_str_sync = ADV76XX_DR_STR_MEDIUM_HIGH; 2744 2745 return 0; 2746 } 2747 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org