[PATCH v12 5/6] drm/loongson: add drm driver for loongson display controller

[kernel test robot]

Hi Sui,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm/drm-next]
[also build test WARNING on robh/for-next linus/master v5.17 next-20220325]
[cannot apply to mripard/sunxi/for-next]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Sui-Jingfeng/drm-loongson-add-drm-driver-for-loongson-display-controller/20220327-194016
base:   git://anongit.freedesktop.org/drm/drm drm-next
config: parisc-randconfig-r003-20220327 (https://download.01.org/0day-ci/archive/20220327/202203272117.q6tMwBFo-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 11.2.0
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/e90d831d05f2c1b5631fd706fb449e83e64f632c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Sui-Jingfeng/drm-loongson-add-drm-driver-for-loongson-display-controller/20220327-194016
        git checkout e90d831d05f2c1b5631fd706fb449e83e64f632c
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash drivers/gpu/drm/loongson/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/loongson/lsdc_debugfs.c:149: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * vram debugfs related ...


vim +149 drivers/gpu/drm/loongson/lsdc_debugfs.c

   147	
   148	/**
 > 149	 * vram debugfs related ...
   150	 */
   151	static int lsdc_vram_mm_show(struct seq_file *m, void *data)
   152	{
   153		struct drm_info_node *node = (struct drm_info_node *)m->private;
   154		struct drm_vram_mm *vmm = node->minor->dev->vram_mm;
   155		struct ttm_resource_manager *man = ttm_manager_type(&vmm->bdev, TTM_PL_VRAM);
   156		struct drm_printer p = drm_seq_file_printer(m);
   157	
   158		ttm_resource_manager_debug(man, &p);
   159		return 0;
   160	}
   161	

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