Re: [PATCH 04/14] drm: Add DSI panel power on/off sequence programming

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Hi Vidya,

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on v4.10-rc3 next-20170106]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Vidya-Srinivas/drm-i915-Check-for-platform-specific-GPIO-config/20170109-175734
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   make[3]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.
   include/linux/init.h:1: warning: no structured comments found
   include/linux/kthread.h:26: warning: Excess function parameter '...' description in 'kthread_create'
   kernel/sys.c:1: warning: no structured comments found
   drivers/dma-buf/seqno-fence.c:1: warning: no structured comments found
   include/drm/drm_drv.h:409: warning: No description found for parameter 'load'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'firstopen'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'open'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'preclose'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'postclose'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'lastclose'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'unload'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'dma_ioctl'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'dma_quiescent'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'context_dtor'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'set_busid'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'irq_handler'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'irq_preinstall'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'irq_postinstall'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'irq_uninstall'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'debugfs_init'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'debugfs_cleanup'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_open_object'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_close_object'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'prime_handle_to_fd'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'prime_fd_to_handle'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_export'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_import'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_pin'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_unpin'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_res_obj'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_get_sg_table'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_import_sg_table'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_vmap'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_vunmap'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_prime_mmap'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'vgaarb_irq'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'gem_vm_ops'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'major'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'minor'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'patchlevel'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'name'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'desc'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'date'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'driver_features'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'dev_priv_size'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'ioctls'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'num_ioctls'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'fops'
   include/drm/drm_drv.h:409: warning: No description found for parameter 'legacy_dev_list'
>> include/drm/drm_panel.h:79: warning: No description found for parameter 'power_on'
>> include/drm/drm_panel.h:79: warning: No description found for parameter 'power_off'
   drivers/media/dvb-core/dvb_frontend.h:677: warning: No description found for parameter 'refcount'
   drivers/char/tpm/tpm_vtpm_proxy.c:73: warning: No description found for parameter 'filp'
   drivers/char/tpm/tpm_vtpm_proxy.c:73: warning: No description found for parameter 'buf'
   drivers/char/tpm/tpm_vtpm_proxy.c:73: warning: No description found for parameter 'count'
   drivers/char/tpm/tpm_vtpm_proxy.c:73: warning: No description found for parameter 'off'
   drivers/char/tpm/tpm_vtpm_proxy.c:123: warning: No description found for parameter 'filp'
   drivers/char/tpm/tpm_vtpm_proxy.c:123: warning: No description found for parameter 'buf'
   drivers/char/tpm/tpm_vtpm_proxy.c:123: warning: No description found for parameter 'count'
   drivers/char/tpm/tpm_vtpm_proxy.c:123: warning: No description found for parameter 'off'
   drivers/char/tpm/tpm_vtpm_proxy.c:203: warning: No description found for parameter 'proxy_dev'
   sound/soc/soc-core.c:994: warning: No description found for parameter 'stream_name'
   Documentation/core-api/assoc_array.rst:13: WARNING: Enumerated list ends without a blank line; unexpected unindent.
   Documentation/doc-guide/sphinx.rst:110: ERROR: Unknown target name: "sphinx c domain".
   include/net/cfg80211.h:3154: ERROR: Unexpected indentation.
   include/net/mac80211.h:3214: ERROR: Unexpected indentation.
   include/net/mac80211.h:3217: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/net/mac80211.h:3219: ERROR: Unexpected indentation.
   include/net/mac80211.h:3220: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/net/mac80211.h:1773: ERROR: Unexpected indentation.
   include/net/mac80211.h:1777: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/sched/fair.c:7587: WARNING: Inline emphasis start-string without end-string.
   kernel/time/timer.c:1240: ERROR: Unexpected indentation.
   kernel/time/timer.c:1242: ERROR: Unexpected indentation.
   kernel/time/timer.c:1243: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/wait.h:121: WARNING: Block quote ends without a blank line; unexpected unindent.
   include/linux/wait.h:124: ERROR: Unexpected indentation.
   include/linux/wait.h:126: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/time/hrtimer.c:1021: WARNING: Block quote ends without a blank line; unexpected unindent.
   kernel/signal.c:317: WARNING: Inline literal start-string without end-string.
   drivers/message/fusion/mptbase.c:5051: WARNING: Definition list ends without a blank line; unexpected unindent.
   drivers/tty/serial/serial_core.c:1897: WARNING: Definition list ends without a blank line; unexpected unindent.
   include/linux/spi/spi.h:369: ERROR: Unexpected indentation.
   drivers/usb/core/message.c:481: ERROR: Unexpected indentation.
   drivers/usb/core/message.c:482: WARNING: Block quote ends without a blank line; unexpected unindent.
   Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_type".
   Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_dir".
   Documentation/driver-api/usb.rst:623: ERROR: Unknown target name: "usb_recip".
   Documentation/driver-api/usb.rst:689: ERROR: Unknown target name: "usbdevfs_urb_type".
   sound/soc/soc-core.c:2508: ERROR: Unknown target name: "snd_soc_daifmt".
   sound/core/jack.c:312: ERROR: Unknown target name: "snd_jack_btn".
   Documentation/translations/ko_KR/howto.rst:293: WARNING: Inline emphasis start-string without end-string.
   WARNING: dvipng command 'dvipng' cannot be run (needed for math display), check the imgmath_dvipng setting

vim +/power_on +79 include/drm/drm_panel.h

45527d43 Ajay Kumar     2014-07-18  63   * cease transmission of video data.
45527d43 Ajay Kumar     2014-07-18  64   *
45527d43 Ajay Kumar     2014-07-18  65   * To save power when no video data is transmitted, a driver can power down
45527d43 Ajay Kumar     2014-07-18  66   * the panel. This is the job of the .unprepare() function.
45527d43 Ajay Kumar     2014-07-18  67   */
aead40ea Thierry Reding 2013-08-30  68  struct drm_panel_funcs {
aead40ea Thierry Reding 2013-08-30  69  	int (*disable)(struct drm_panel *panel);
45527d43 Ajay Kumar     2014-07-18  70  	int (*unprepare)(struct drm_panel *panel);
45527d43 Ajay Kumar     2014-07-18  71  	int (*prepare)(struct drm_panel *panel);
c1a64edd Vidya Srinivas 2017-01-09  72  	int (*power_on)(struct drm_panel *panel);
c1a64edd Vidya Srinivas 2017-01-09  73  	int (*power_off)(struct drm_panel *panel);
aead40ea Thierry Reding 2013-08-30  74  	int (*enable)(struct drm_panel *panel);
aead40ea Thierry Reding 2013-08-30  75  	int (*get_modes)(struct drm_panel *panel);
2938931f Philipp Zabel  2014-12-11  76  	int (*get_timings)(struct drm_panel *panel, unsigned int num_timings,
2938931f Philipp Zabel  2014-12-11  77  			   struct display_timing *timings);
aead40ea Thierry Reding 2013-08-30  78  };
aead40ea Thierry Reding 2013-08-30 @79  
83127f67 Thierry Reding 2016-05-06  80  /**
83127f67 Thierry Reding 2016-05-06  81   * struct drm_panel - DRM panel object
83127f67 Thierry Reding 2016-05-06  82   * @drm: DRM device owning the panel
83127f67 Thierry Reding 2016-05-06  83   * @connector: DRM connector that the panel is attached to
83127f67 Thierry Reding 2016-05-06  84   * @dev: parent device of the panel
83127f67 Thierry Reding 2016-05-06  85   * @funcs: operations that can be performed on the panel
83127f67 Thierry Reding 2016-05-06  86   * @list: panel entry in registry
83127f67 Thierry Reding 2016-05-06  87   */

:::::: The code at line 79 was first introduced by commit
:::::: aead40ea0b53a0e28d34adf7bb923ecb2968c04a drm: Add panel support

:::::: TO: Thierry Reding <treding@xxxxxxxxxx>
:::::: CC: Thierry Reding <treding@xxxxxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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