[linux-next:master 11138/11456] drivers/gpu/drm/verisilicon/vs_bridge.c:306:9: error: call to undeclared function 'devm_drm_of_get_bridge'; ISO C99 and later do not support implicit function declarations

[linux-next:master 11138/11456] drivers/gpu/drm/verisilicon/vs_bridge.c:306:9: error: call to undeclared function 'devm_drm_of_get_bridge'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

Hi Luca,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   6375e61c01e93e35ee7acd336a689ac1fae4b509
commit: aa8a8c7e4641ebcef02dd6fa387ca334857367f4 [11138/11456] drm/bridge: panel: move all code to drm_panel.c
config: i386-buildonly-randconfig-1005-20260929 (https://download.01.org/0day-ci/archive/20260929/202609291109.OIsGTysr-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260929/202609291109.OIsGTysr-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202609291109.OIsGTysr-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/verisilicon/vs_bridge.c:306:9: error: call to undeclared function 'devm_drm_of_get_bridge'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     306 |         next = devm_drm_of_get_bridge(drm_dev->dev, drm_dev->dev->of_node,
         |                ^
   drivers/gpu/drm/verisilicon/vs_bridge.c:306:9: note: did you mean 'devm_drm_put_bridge'?
   include/drm/drm_bridge.h:1525:6: note: 'devm_drm_put_bridge' declared here
    1525 | void devm_drm_put_bridge(struct device *dev, struct drm_bridge *bridge);
         |      ^
>> drivers/gpu/drm/verisilicon/vs_bridge.c:306:7: error: incompatible integer to pointer conversion assigning to 'struct drm_bridge *' from 'int' [-Wint-conversion]
     306 |         next = devm_drm_of_get_bridge(drm_dev->dev, drm_dev->dev->of_node,
         |              ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     307 |                                       output, intf);
         |                                       ~~~~~~~~~~~~~
   2 errors generated.
--
>> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c:336:11: error: call to undeclared function 'devm_drm_of_get_bridge'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     336 |         bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node, 1, 0);
         |                  ^
   drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c:336:11: note: did you mean 'devm_drm_put_bridge'?
   include/drm/drm_bridge.h:1525:6: note: 'devm_drm_put_bridge' declared here
    1525 | void devm_drm_put_bridge(struct device *dev, struct drm_bridge *bridge);
         |      ^
>> drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c:336:9: error: incompatible integer to pointer conversion assigning to 'struct drm_bridge *' from 'int' [-Wint-conversion]
     336 |         bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node, 1, 0);
         |                ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for PM_GENERIC_DOMAINS_OF
   Depends on [n]: PM_GENERIC_DOMAINS [=y] && OF [=n]
   Selected by [y]:
   - COMMON_CLK_MT8173_MFGTOP [=y] && COMMON_CLK [=y] && (ARCH_MEDIATEK || COMPILE_TEST [=y]) && COMMON_CLK_MT8173 [=y] && PM [=y]


vim +/devm_drm_of_get_bridge +306 drivers/gpu/drm/verisilicon/vs_bridge.c

dbf21777caa8b8c Icenowy Zheng 2026-01-29  288  
dbf21777caa8b8c Icenowy Zheng 2026-01-29  289  struct vs_bridge *vs_bridge_init(struct drm_device *drm_dev,
dbf21777caa8b8c Icenowy Zheng 2026-01-29  290  				 struct vs_crtc *crtc)
dbf21777caa8b8c Icenowy Zheng 2026-01-29  291  {
dbf21777caa8b8c Icenowy Zheng 2026-01-29  292  	unsigned int output = crtc->id;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  293  	struct vs_bridge *bridge;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  294  	struct drm_bridge *next;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  295  	enum vs_bridge_output_interface intf;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  296  	const struct drm_bridge_funcs *bridge_funcs;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  297  	int ret, enctype;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  298  
dbf21777caa8b8c Icenowy Zheng 2026-01-29  299  	intf = vs_bridge_detect_output_interface(drm_dev->dev->of_node,
dbf21777caa8b8c Icenowy Zheng 2026-01-29  300  						 output);
dbf21777caa8b8c Icenowy Zheng 2026-01-29  301  	if (intf == -ENODEV) {
dbf21777caa8b8c Icenowy Zheng 2026-01-29  302  		drm_dbg(drm_dev, "Skipping output %u\n", output);
dbf21777caa8b8c Icenowy Zheng 2026-01-29  303  		return NULL;
dbf21777caa8b8c Icenowy Zheng 2026-01-29  304  	}
dbf21777caa8b8c Icenowy Zheng 2026-01-29  305  
dbf21777caa8b8c Icenowy Zheng 2026-01-29 @306  	next = devm_drm_of_get_bridge(drm_dev->dev, drm_dev->dev->of_node,

:::::: The code at line 306 was first introduced by commit
:::::: dbf21777caa8b8c88c12f7f036b01208fec0d55a drm: verisilicon: add a driver for Verisilicon display controllers

:::::: TO: Icenowy Zheng <uwu@icenowy.me>
:::::: CC: Thomas Zimmermann <tzimmermann@suse.de>

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