Hi Liu,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on shawnguo/for-next]
[also build test ERROR on robh/for-next drm-intel/for-linux-next 
drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next 
linus/master v5.12-rc3 next-20210319]
[cannot apply to drm/drm-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/0day-ci/linux/commits/Liu-Ying/Add-some-DRM-bridge-drivers-support-for-i-MX8qm-qxp-SoCs/20210317-115847
base:   https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git 
for-next
config: x86_64-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # 
https://github.com/0day-ci/linux/commit/2a10a7804cc3ac91a22aca483e688326082219fa
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Liu-Ying/Add-some-DRM-bridge-drivers-support-for-i-MX8qm-qxp-SoCs/20210317-115847
        git checkout 2a10a7804cc3ac91a22aca483e688326082219fa
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:69:15: warning: 'struct 
phy_configure_opts_lvds' declared inside parameter list will not be visible 
outside of this definition or declaration
      69 |        struct phy_configure_opts_lvds *phy_cfg)
         |               ^~~~~~~~~~~~~~~~~~~~~~~
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c: In function 
'imx8qm_ldb_set_phy_cfg':
>> drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:71:9: error: dereferencing 
>> pointer to incomplete type 'struct phy_configure_opts_lvds'
      71 |  phy_cfg->bits_per_lane_and_dclk_cycle = 7;
         |         ^~
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c: In function 
'imx8qm_ldb_bridge_atomic_check':
>> drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:91:49: error: 'union 
>> phy_configure_opts' has no member named 'lvds'
      91 |  struct phy_configure_opts_lvds *phy_cfg = &opts.lvds;
         |                                                 ^
>> drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:99:62: error: passing argument 5 
>> of 'imx8qm_ldb_set_phy_cfg' from incompatible pointer type 
>> [-Werror=incompatible-pointer-types]
      99 |  imx8qm_ldb_set_phy_cfg(imx8qm_ldb, di_clk, is_split, false, 
phy_cfg);
         |                                                              ^~~~~~~
         |                                                              |
         |                                                              struct 
phy_configure_opts_lvds *
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:69:40: note: expected 'struct 
phy_configure_opts_lvds *' but argument is of type 'struct 
phy_configure_opts_lvds *'
      69 |        struct phy_configure_opts_lvds *phy_cfg)
         |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:111:10: error: passing argument 
5 of 'imx8qm_ldb_set_phy_cfg' from incompatible pointer type 
[-Werror=incompatible-pointer-types]
     111 |          phy_cfg);
         |          ^~~~~~~
         |          |
         |          struct phy_configure_opts_lvds *
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:69:40: note: expected 'struct 
phy_configure_opts_lvds *' but argument is of type 'struct 
phy_configure_opts_lvds *'
      69 |        struct phy_configure_opts_lvds *phy_cfg)
         |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c: In function 
'imx8qm_ldb_bridge_mode_set':
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:137:49: error: 'union 
phy_configure_opts' has no member named 'lvds'
     137 |  struct phy_configure_opts_lvds *phy_cfg = &opts.lvds;
         |                                                 ^
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:152:62: error: passing argument 
5 of 'imx8qm_ldb_set_phy_cfg' from incompatible pointer type 
[-Werror=incompatible-pointer-types]
     152 |  imx8qm_ldb_set_phy_cfg(imx8qm_ldb, di_clk, is_split, false, 
phy_cfg);
         |                                                              ^~~~~~~
         |                                                              |
         |                                                              struct 
phy_configure_opts_lvds *
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:69:40: note: expected 'struct 
phy_configure_opts_lvds *' but argument is of type 'struct 
phy_configure_opts_lvds *'
      69 |        struct phy_configure_opts_lvds *phy_cfg)
         |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:161:10: error: passing argument 
5 of 'imx8qm_ldb_set_phy_cfg' from incompatible pointer type 
[-Werror=incompatible-pointer-types]
     161 |          phy_cfg);
         |          ^~~~~~~
         |          |
         |          struct phy_configure_opts_lvds *
   drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c:69:40: note: expected 'struct 
phy_configure_opts_lvds *' but argument is of type 'struct 
phy_configure_opts_lvds *'
      69 |        struct phy_configure_opts_lvds *phy_cfg)
         |        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
   cc1: some warnings being treated as errors


vim +71 drivers/gpu/drm/bridge/imx/imx8qm-ldb-drv.c

    65  
    66  static void imx8qm_ldb_set_phy_cfg(struct imx8qm_ldb *imx8qm_ldb,
    67                                     unsigned long di_clk,
    68                                     bool is_split, bool is_slave,
  > 69                                     struct phy_configure_opts_lvds 
*phy_cfg)
    70  {
  > 71          phy_cfg->bits_per_lane_and_dclk_cycle = 7;
    72          phy_cfg->lanes = 4;
    73          phy_cfg->differential_clk_rate = is_split ? di_clk / 2 : di_clk;
    74          phy_cfg->is_slave = is_slave;
    75  }
    76  
    77  static int imx8qm_ldb_bridge_atomic_check(struct drm_bridge *bridge,
    78                                            struct drm_bridge_state 
*bridge_state,
    79                                            struct drm_crtc_state 
*crtc_state,
    80                                            struct drm_connector_state 
*conn_state)
    81  {
    82          struct ldb_channel *ldb_ch = bridge->driver_private;
    83          struct ldb *ldb = ldb_ch->ldb;
    84          struct imx8qm_ldb_channel *imx8qm_ldb_ch =
    85                                          
base_to_imx8qm_ldb_channel(ldb_ch);
    86          struct imx8qm_ldb *imx8qm_ldb = base_to_imx8qm_ldb(ldb);
    87          struct drm_display_mode *adj = &crtc_state->adjusted_mode;
    88          unsigned long di_clk = adj->clock * 1000;
    89          bool is_split = ldb_channel_is_split_link(ldb_ch);
    90          union phy_configure_opts opts = { };
  > 91          struct phy_configure_opts_lvds *phy_cfg = &opts.lvds;
    92          int ret;
    93  
    94          ret = ldb_bridge_atomic_check_helper(bridge, bridge_state,
    95                                                  crtc_state, conn_state);
    96          if (ret)
    97                  return ret;
    98  
  > 99          imx8qm_ldb_set_phy_cfg(imx8qm_ldb, di_clk, is_split, false, 
phy_cfg);
   100          ret = phy_validate(imx8qm_ldb_ch->phy, PHY_MODE_LVDS, 0, &opts);
   101          if (ret < 0) {
   102                  DRM_DEV_DEBUG_DRIVER(imx8qm_ldb->dev,
   103                                       "failed to validate PHY: %d\n", 
ret);
   104                  return ret;
   105          }
   106  
   107          if (is_split) {
   108                  imx8qm_ldb_ch =
   109                          &imx8qm_ldb->channel[imx8qm_ldb->active_chno ^ 
1];
   110                  imx8qm_ldb_set_phy_cfg(imx8qm_ldb, di_clk, is_split, 
true,
   111                                                                          
phy_cfg);
   112                  ret = phy_validate(imx8qm_ldb_ch->phy, PHY_MODE_LVDS, 
0, &opts);
   113                  if (ret < 0) {
   114                          DRM_DEV_DEBUG_DRIVER(imx8qm_ldb->dev,
   115                                  "failed to validate slave PHY: %d\n", 
ret);
   116                          return ret;
   117                  }
   118          }
   119  
   120          return ret;
   121  }
   122  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
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