Re: [PATCH 5/7] phy: qcom-qmp-combo: Introduce drm_bridge

[kernel test robot <lkp@intel.com>]

Hi Bjorn,

kernel test robot noticed the following build errors:

[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v6.3 next-20230428]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Bjorn-Andersson/dt-bindings-phy-qcom-sc8280xp-qmp-usb43dp-Add-ports-and-orientation-switch/20230425-114219
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20230425034010.3789376-6-quic_bjorande%40quicinc.com
patch subject: [PATCH 5/7] phy: qcom-qmp-combo: Introduce drm_bridge
config: arm-randconfig-c031-20230430 (https://download.01.org/0day-ci/archive/20230502/202305020313.fewkOUd1-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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/intel-lab-lkp/linux/commit/9d1c54037e7501c68b3ad3347abda7f8ca0d4a7a
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Bjorn-Andersson/dt-bindings-phy-qcom-sc8280xp-qmp-usb43dp-Add-ports-and-orientation-switch/20230425-114219
        git checkout 9d1c54037e7501c68b3ad3347abda7f8ca0d4a7a
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305020313.fewkOUd1-lkp@intel.com/

All errors (new ones prefixed by >>):

   arm-linux-gnueabi-ld: drivers/phy/qualcomm/phy-qcom-qmp-combo.o: in function `qmp_combo_bridge_attach':
>> drivers/phy/qualcomm/phy-qcom-qmp-combo.c:3227: undefined reference to `devm_drm_of_get_bridge'
>> arm-linux-gnueabi-ld: drivers/phy/qualcomm/phy-qcom-qmp-combo.c:3231: undefined reference to `drm_bridge_attach'
   arm-linux-gnueabi-ld: drivers/phy/qualcomm/phy-qcom-qmp-combo.o: in function `qmp_combo_dp_register_bridge':
>> drivers/phy/qualcomm/phy-qcom-qmp-combo.c:3243: undefined reference to `devm_drm_bridge_add'


vim +3227 drivers/phy/qualcomm/phy-qcom-qmp-combo.c

  3217	
  3218	static int qmp_combo_bridge_attach(struct drm_bridge *bridge,
  3219					   enum drm_bridge_attach_flags flags)
  3220	{
  3221		struct qmp_combo *qmp = container_of(bridge, struct qmp_combo, bridge);
  3222		struct drm_bridge *next_bridge;
  3223	
  3224		if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
  3225			return -EINVAL;
  3226	
> 3227		next_bridge = devm_drm_of_get_bridge(qmp->dev, qmp->dev->of_node, 0, 0);
  3228		if (IS_ERR(next_bridge))
  3229			return dev_err_probe(qmp->dev, PTR_ERR(next_bridge), "failed to acquire drm_bridge\n");
  3230	
> 3231		return drm_bridge_attach(bridge->encoder, next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
  3232	}
  3233	
  3234	static const struct drm_bridge_funcs qmp_combo_bridge_funcs = {
  3235		.attach	= qmp_combo_bridge_attach,
  3236	};
  3237	
  3238	static int qmp_combo_dp_register_bridge(struct qmp_combo *qmp)
  3239	{
  3240		qmp->bridge.funcs = &qmp_combo_bridge_funcs;
  3241		qmp->bridge.of_node = qmp->dev->of_node;
  3242	
> 3243		return devm_drm_bridge_add(qmp->dev, &qmp->bridge);
  3244	}
  3245	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests