[PATCH v5 4/6] drm/bridge: implement generic DP HPD bridge

[kernel test robot]

Hi Dmitry,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20231025]
[also build test ERROR on v6.6-rc7]
[cannot apply to drm-misc/drm-misc-next usb/usb-testing usb/usb-next usb/usb-linus drm/drm-next linus/master v6.6-rc7 v6.6-rc6 v6.6-rc5]
[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/Dmitry-Baryshkov/drm-bridge-add-transparent-bridge-helper/20231026-063135
base:   next-20231025
patch link:    https://lore.kernel.org/r/20231025223027.943563-5-dmitry.baryshkov%40linaro.org
patch subject: [PATCH v5 4/6] drm/bridge: implement generic DP HPD bridge
config: csky-randconfig-002-20231026 (https://download.01.org/0day-ci/archive/20231026/202310261906.C62L4fc2-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231026/202310261906.C62L4fc2-lkp@intel.com/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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310261906.C62L4fc2-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

   In file included from drivers/phy/qualcomm/phy-qcom-qmp-combo.c:24:
>> include/drm/bridge/aux-bridge.h:28:1: error: expected identifier or '(' before '{' token
      28 | {
         | ^
>> include/drm/bridge/aux-bridge.h:26:30: warning: 'drm_dp_hpd_bridge_register' declared 'static' but never defined [-Wunused-function]
      26 | static inline struct device *drm_dp_hpd_bridge_register(struct device *parent,
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +28 include/drm/bridge/aux-bridge.h

    20	
    21	#if IS_ENABLED(CONFIG_DRM_AUX_HPD_BRIDGE)
    22	struct device *drm_dp_hpd_bridge_register(struct device *parent,
    23						  struct device_node *np);
    24	void drm_aux_hpd_bridge_notify(struct device *dev, enum drm_connector_status status);
    25	#else
  > 26	static inline struct device *drm_dp_hpd_bridge_register(struct device *parent,
    27								struct device_node *np);
  > 28	{
    29		return 0;
    30	}
    31	

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