Re: [PATCH 4/7] drm/msm/dp: fix aux-bus EP lifetime

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Hi Johan,

I love your patch! Yet something to improve:

[auto build test ERROR on next-20220912]
[also build test ERROR on v6.0-rc5]
[cannot apply to drm-misc/drm-misc-next drm/drm-next drm-intel/for-linux-next drm-tip/drm-tip linus/master v6.0-rc5 v6.0-rc4 v6.0-rc3]
[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/Johan-Hovold/drm-msm-probe-deferral-fixes/20220912-234351
base:    044b771be9c5de9d817dfafb829d2f049c71c3b4
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220913/202209130930.yrI8pQGL-lkp@xxxxxxxxx/config)
compiler: arceb-elf-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/458c96e19570036b3dd6e48d91f0bf6f67b996fa
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Johan-Hovold/drm-msm-probe-deferral-fixes/20220912-234351
        git checkout 458c96e19570036b3dd6e48d91f0bf6f67b996fa
        # 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=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/bridge/ti-sn65dsi86.c: In function 'ti_sn_aux_probe':
>> drivers/gpu/drm/bridge/ti-sn65dsi86.c:632:50: error: passing argument 1 of 'devm_of_dp_aux_populate_ep_devices' from incompatible pointer type [-Werror=incompatible-pointer-types]
     632 |         ret = devm_of_dp_aux_populate_ep_devices(&pdata->aux);
         |                                                  ^~~~~~~~~~~
         |                                                  |
         |                                                  struct drm_dp_aux *
   In file included from drivers/gpu/drm/bridge/ti-sn65dsi86.c:26:
   include/drm/display/drm_dp_aux_bus.h:64:69: note: expected 'struct device *' but argument is of type 'struct drm_dp_aux *'
      64 | static inline int devm_of_dp_aux_populate_ep_devices(struct device *dev, struct drm_dp_aux *aux)
         |                                                      ~~~~~~~~~~~~~~~^~~
>> drivers/gpu/drm/bridge/ti-sn65dsi86.c:632:15: error: too few arguments to function 'devm_of_dp_aux_populate_ep_devices'
     632 |         ret = devm_of_dp_aux_populate_ep_devices(&pdata->aux);
         |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/drm/display/drm_dp_aux_bus.h:64:19: note: declared here
      64 | static inline int devm_of_dp_aux_populate_ep_devices(struct device *dev, struct drm_dp_aux *aux)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   drivers/gpu/drm/bridge/analogix/anx7625.c: In function 'anx7625_i2c_probe':
>> drivers/gpu/drm/bridge/analogix/anx7625.c:2654:44: error: passing argument 1 of 'devm_of_dp_aux_populate_ep_devices' from incompatible pointer type [-Werror=incompatible-pointer-types]
    2654 |         devm_of_dp_aux_populate_ep_devices(&platform->aux);
         |                                            ^~~~~~~~~~~~~~
         |                                            |
         |                                            struct drm_dp_aux *
   In file included from drivers/gpu/drm/bridge/analogix/anx7625.c:24:
   include/drm/display/drm_dp_aux_bus.h:64:69: note: expected 'struct device *' but argument is of type 'struct drm_dp_aux *'
      64 | static inline int devm_of_dp_aux_populate_ep_devices(struct device *dev, struct drm_dp_aux *aux)
         |                                                      ~~~~~~~~~~~~~~~^~~
>> drivers/gpu/drm/bridge/analogix/anx7625.c:2654:9: error: too few arguments to function 'devm_of_dp_aux_populate_ep_devices'
    2654 |         devm_of_dp_aux_populate_ep_devices(&platform->aux);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/drm/display/drm_dp_aux_bus.h:64:19: note: declared here
      64 | static inline int devm_of_dp_aux_populate_ep_devices(struct device *dev, struct drm_dp_aux *aux)
         |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/devm_of_dp_aux_populate_ep_devices +632 drivers/gpu/drm/bridge/ti-sn65dsi86.c

77674e722f4b27 Laurent Pinchart 2021-06-24  620  
77674e722f4b27 Laurent Pinchart 2021-06-24  621  static int ti_sn_aux_probe(struct auxiliary_device *adev,
77674e722f4b27 Laurent Pinchart 2021-06-24  622  			   const struct auxiliary_device_id *id)
77674e722f4b27 Laurent Pinchart 2021-06-24  623  {
77674e722f4b27 Laurent Pinchart 2021-06-24  624  	struct ti_sn65dsi86 *pdata = dev_get_drvdata(adev->dev.parent);
77674e722f4b27 Laurent Pinchart 2021-06-24  625  	int ret;
77674e722f4b27 Laurent Pinchart 2021-06-24  626  
77674e722f4b27 Laurent Pinchart 2021-06-24  627  	pdata->aux.name = "ti-sn65dsi86-aux";
77674e722f4b27 Laurent Pinchart 2021-06-24  628  	pdata->aux.dev = &adev->dev;
77674e722f4b27 Laurent Pinchart 2021-06-24  629  	pdata->aux.transfer = ti_sn_aux_transfer;
77674e722f4b27 Laurent Pinchart 2021-06-24  630  	drm_dp_aux_init(&pdata->aux);
77674e722f4b27 Laurent Pinchart 2021-06-24  631  
77674e722f4b27 Laurent Pinchart 2021-06-24 @632  	ret = devm_of_dp_aux_populate_ep_devices(&pdata->aux);
77674e722f4b27 Laurent Pinchart 2021-06-24  633  	if (ret)
77674e722f4b27 Laurent Pinchart 2021-06-24  634  		return ret;
77674e722f4b27 Laurent Pinchart 2021-06-24  635  
77674e722f4b27 Laurent Pinchart 2021-06-24  636  	/*
77674e722f4b27 Laurent Pinchart 2021-06-24  637  	 * The eDP to MIPI bridge parts don't work until the AUX channel is
77674e722f4b27 Laurent Pinchart 2021-06-24  638  	 * setup so we don't add it in the main driver probe, we add it now.
77674e722f4b27 Laurent Pinchart 2021-06-24  639  	 */
77674e722f4b27 Laurent Pinchart 2021-06-24  640  	return ti_sn65dsi86_add_aux_device(pdata, &pdata->bridge_aux, "bridge");
77674e722f4b27 Laurent Pinchart 2021-06-24  641  }
77674e722f4b27 Laurent Pinchart 2021-06-24  642  

-- 
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