Hi Jitao, [auto build test ERROR on drm/drm-next] [also build test ERROR on v4.4-rc3 next-20151203] url: https://github.com/0day-ci/linux/commits/Jitao-Shi/Documentation-bridge-Add-documentation-for-ps8640-DT-properties/20151123-180220 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: mips-allmodconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=mips All errors (new ones prefixed by >>): drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_prepare': >> drivers/gpu/drm/bridge/parade-ps8640.c:183:2: error: implicit declaration of function 'gpiod_set_value' [-Werror=implicit-function-declaration] gpiod_set_value(ps_bridge->gpio_slp_n, 1); ^ drivers/gpu/drm/bridge/parade-ps8640.c: In function 'ps8640_probe': >> drivers/gpu/drm/bridge/parade-ps8640.c:399:31: error: implicit declaration of function 'devm_gpiod_get' [-Werror=implicit-function-declaration] ps_bridge->gpio_mode_sel_n = devm_gpiod_get(&client->dev, "mode-sel", ^ >> drivers/gpu/drm/bridge/parade-ps8640.c:400:11: error: 'GPIOD_OUT_HIGH' undeclared (first use in this function) GPIOD_OUT_HIGH); ^ drivers/gpu/drm/bridge/parade-ps8640.c:400:11: note: each undeclared identifier is reported only once for each function it appears in cc1: some warnings being treated as errors vim +/gpiod_set_value +183 drivers/gpu/drm/bridge/parade-ps8640.c 177 err = regulator_enable(ps_bridge->pwr_3v3_supply); 178 if (err < 0) { 179 DRM_ERROR("failed to enable vdd33-supply: %d\n", err); 180 goto err_regulator_disable; 181 } 182 > 183 gpiod_set_value(ps_bridge->gpio_slp_n, 1); 184 gpiod_set_value(ps_bridge->gpio_rst_n, 0); 185 usleep_range(500, 700); 186 gpiod_set_value(ps_bridge->gpio_rst_n, 1); --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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