[Intel-gfx] [PATCH v4 1/4] drm: Helper for lspcon in drm_dp_dual_mode
kbuild test robot
lkp at intel.com
Wed Aug 24 01:22:04 UTC 2016
Hi Shashank,
[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on v4.8-rc3 next-20160823]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]
url: https://github.com/0day-ci/linux/commits/Shashank-Sharma/Enable-lspcon-support-for-GEN9-devices/20160818-183353
base: git://anongit.freedesktop.org/drm-intel for-linux-next
reproduce: make htmldocs
All warnings (new ones prefixed by >>):
include/drm/drm_fourcc.h:1: warning: no structured comments found
include/drm/drm_crtc.h:848: warning: No description found for parameter 'index'
include/drm/drm_crtc.h:1223: warning: No description found for parameter 'index'
include/drm/drm_crtc.h:1720: warning: No description found for parameter 'index'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'connector_ida'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'edid_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'dpms_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'path_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tile_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'plane_type_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'rotation_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_src_x'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_src_y'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_src_w'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_src_h'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_crtc_x'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_crtc_y'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_crtc_w'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_crtc_h'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_fb_id'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_crtc_id'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_active'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'prop_mode_id'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'dvi_i_subconnector_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'dvi_i_select_subconnector_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_subconnector_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_select_subconnector_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_mode_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_left_margin_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_right_margin_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_top_margin_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_bottom_margin_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_brightness_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_contrast_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_flicker_reduction_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_overscan_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_saturation_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'tv_hue_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'scaling_mode_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'aspect_ratio_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'dirty_info_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'suggested_x_property'
include/drm/drm_crtc.h:2505: warning: No description found for parameter 'suggested_y_property'
include/drm/drmP.h:172: warning: No description found for parameter 'fmt'
include/drm/drmP.h:188: warning: No description found for parameter 'fmt'
include/drm/drmP.h:206: warning: No description found for parameter 'fmt'
include/drm/drmP.h:251: warning: No description found for parameter 'dev'
include/drm/drmP.h:251: warning: No description found for parameter 'data'
include/drm/drmP.h:251: warning: No description found for parameter 'file_priv'
include/drm/drmP.h:284: warning: No description found for parameter 'ioctl'
include/drm/drmP.h:284: warning: No description found for parameter '_func'
include/drm/drmP.h:284: warning: No description found for parameter '_flags'
include/drm/drmP.h:365: warning: cannot understand function prototype: 'struct drm_lock_data '
include/drm/drmP.h:392: warning: cannot understand function prototype: 'struct drm_driver '
include/drm/drmP.h:655: warning: cannot understand function prototype: 'struct drm_info_list '
include/drm/drmP.h:665: warning: cannot understand function prototype: 'struct drm_info_node '
include/drm/drmP.h:675: warning: cannot understand function prototype: 'struct drm_minor '
include/drm/drmP.h:720: warning: cannot understand function prototype: 'struct drm_device '
include/drm/drm_dp_helper.h:752: warning: No description found for parameter 'i2c_nack_count'
include/drm/drm_dp_helper.h:752: warning: No description found for parameter 'i2c_defer_count'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:390: warning: No description found for parameter 'adapter'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:390: warning: No description found for parameter 'mode'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:390: warning: Excess function parameter 'i2c_adapter' description in 'drm_lspcon_get_mode'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:390: warning: Excess function parameter 'current_mode' description in 'drm_lspcon_get_mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:426: warning: No description found for parameter 'adapter'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:426: warning: No description found for parameter 'mode'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:426: warning: Excess function parameter 'i2c_adapter' description in 'drm_lspcon_set_mode'
>> drivers/gpu/drm/drm_dp_dual_mode_helper.c:426: warning: Excess function parameter 'reqd_mode' description in 'drm_lspcon_set_mode'
>> include/drm/drm_dp_dual_mode_helper.h:84: warning: Enum value 'DRM_LSPCON_MODE_INVALID' not described in enum 'drm_lspcon_mode'
>> include/drm/drm_dp_dual_mode_helper.h:84: warning: Enum value 'DRM_LSPCON_MODE_LS' not described in enum 'drm_lspcon_mode'
>> include/drm/drm_dp_dual_mode_helper.h:84: warning: Enum value 'DRM_LSPCON_MODE_PCON' not described in enum 'drm_lspcon_mode'
>> include/drm/drm_dp_dual_mode_helper.h:104: warning: Enum value 'DRM_DP_DUAL_MODE_LSPCON' not described in enum 'drm_dp_dual_mode_type'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:391: warning: No description found for parameter 'adapter'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:391: warning: No description found for parameter 'mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:391: warning: Excess function parameter 'i2c_adapter' description in 'drm_lspcon_get_mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:391: warning: Excess function parameter 'current_mode' description in 'drm_lspcon_get_mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:427: warning: No description found for parameter 'adapter'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:427: warning: No description found for parameter 'mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:427: warning: Excess function parameter 'i2c_adapter' description in 'drm_lspcon_set_mode'
drivers/gpu/drm/drm_dp_dual_mode_helper.c:427: warning: Excess function parameter 'reqd_mode' description in 'drm_lspcon_set_mode'
drivers/gpu/drm/drm_dp_mst_topology.c:2383: warning: No description found for parameter 'connector'
include/drm/drm_dp_mst_helper.h:93: warning: No description found for parameter 'cached_edid'
include/drm/drm_dp_mst_helper.h:93: warning: No description found for parameter 'has_audio'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'max_dpcd_transaction_bytes'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'sink_count'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'total_slots'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'avail_slots'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'total_pbn'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'qlock'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'tx_msg_downq'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'tx_down_in_progress'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'payload_lock'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'proposed_vcpis'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'payloads'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'payload_mask'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'vcpi_mask'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'tx_waitq'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'work'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'tx_work'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'destroy_connector_list'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'destroy_connector_lock'
include/drm/drm_dp_mst_helper.h:467: warning: No description found for parameter 'destroy_connector_work'
drivers/gpu/drm/drm_dp_mst_topology.c:2384: warning: No description found for parameter 'connector'
drivers/gpu/drm/i915/i915_vgpu.c:105: warning: No description found for parameter 'dev_priv'
drivers/gpu/drm/i915/i915_vgpu.c:184: warning: No description found for parameter 'dev_priv'
drivers/gpu/drm/i915/i915_vgpu.c:184: warning: Excess function parameter 'dev' description in 'intel_vgt_balloon'
drivers/gpu/drm/i915/i915_vgpu.c:106: warning: No description found for parameter 'dev_priv'
drivers/gpu/drm/i915/i915_vgpu.c:185: warning: No description found for parameter 'dev_priv'
drivers/gpu/drm/i915/i915_vgpu.c:185: warning: Excess function parameter 'dev' description in 'intel_vgt_balloon'
drivers/gpu/drm/i915/i915_gem.c:929: warning: No description found for parameter 'i915'
drivers/gpu/drm/i915/i915_gem.c:929: warning: Excess function parameter 'dev' description in 'i915_gem_gtt_pwrite_fast'
drivers/gpu/drm/i915/intel_hotplug.c:543: warning: Excess function parameter 'enabled' description in 'intel_hpd_poll_init'
drivers/gpu/drm/i915/intel_hotplug.c:544: warning: Excess function parameter 'enabled' description in 'intel_hpd_poll_init'
drivers/gpu/drm/i915/intel_fbc.c:1087: warning: No description found for parameter 'crtc_state'
drivers/gpu/drm/i915/intel_fbc.c:1087: warning: No description found for parameter 'plane_state'
drivers/gpu/drm/i915/intel_fbc.c:1088: warning: No description found for parameter 'crtc_state'
drivers/gpu/drm/i915/intel_fbc.c:1088: warning: No description found for parameter 'plane_state'
Documentation/gpu/drm-internals.rst:249: ERROR: Unexpected indentation.
Documentation/gpu/drm-internals.rst:188: ERROR: Unknown target name: "devm".
Documentation/gpu/drm-kms.rst:929: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:971: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:1451: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:1565: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:1615: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:1627: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-kms.rst:836: WARNING: Option list ends without a blank line; unexpected unindent.
Documentation/gpu/drm-kms-helpers.rst:647: WARNING: Inline emphasis start-string without end-string.
Documentation/gpu/drm-kms-helpers.rst:275: WARNING: Inline literal start-string without end-string.
Documentation/gpu/drm-mm.rst:505: WARNING: Inline emphasis start-string without end-string.
drivers/gpu/drm/i915/intel_uncore.c:1622: ERROR: Unexpected indentation.
Documentation/gpu/i915.rst:156: WARNING: Block quote ends without a blank line; unexpected unindent.
drivers/gpu/drm/i915/intel_uncore.c:1656: ERROR: Unexpected indentation.
Documentation/gpu/i915.rst:192: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/gpu/i915.rst:129: WARNING: Literal block ends without a blank line; unexpected unindent.
Documentation/gpu/i915.rst:148: WARNING: Inline emphasis start-string without end-string.
Documentation/gpu/i915.rst:148: WARNING: Inline emphasis start-string without end-string.
drivers/gpu/drm/i915/intel_lrc.c:1165: ERROR: Unexpected indentation.
Documentation/gpu/i915.rst:339: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/gpu/i915.rst:329: WARNING: Block quote ends without a blank line; unexpected unindent.
Documentation/gpu/i915.rst:348: WARNING: Enumerated list ends without a blank line; unexpected unindent.
Documentation/gpu/drm-kms.rst:499: WARNING: Could not lex literal_block as "C". Highlighting skipped.
Documentation/gpu/drm-kms-helpers.rst:125: WARNING: Could not lex literal_block as "C". Highlighting skipped.
Documentation/gpu/i915.rst:109: WARNING: Could not lex literal_block as "C". Highlighting skipped.
vim +/adapter +390 drivers/gpu/drm/drm_dp_dual_mode_helper.c
384 * Returns:
385 * 0 on success, sets the current_mode value to appropriate mode
386 * -error on failure
387 */
388 int drm_lspcon_get_mode(struct i2c_adapter *adapter,
389 enum drm_lspcon_mode *mode)
> 390 {
391 u8 data;
392 int ret = 0;
393
394 if (!mode) {
395 DRM_ERROR("NULL input\n");
396 return -EINVAL;
397 }
398
399 /* Read Status: i2c over aux */
400 ret = drm_dp_dual_mode_read(adapter, DP_DUAL_MODE_LSPCON_CURRENT_MODE,
401 &data, sizeof(data));
402 if (ret < 0) {
403 DRM_ERROR("LSPCON read(0x80, 0x41) failed\n");
404 return -EFAULT;
405 }
406
407 if (data & DP_DUAL_MODE_LSPCON_MODE_PCON)
408 *mode = DRM_LSPCON_MODE_PCON;
409 else
410 *mode = DRM_LSPCON_MODE_LS;
411 return 0;
412 }
413 EXPORT_SYMBOL(drm_lspcon_get_mode);
414
415 /**
416 * drm_lspcon_change_mode: Change LSPCON's mode of operation by
417 * by writing offset (0x80, 0x40)
418 * @i2c_adapter: I2C-over-aux adapter
419 * @reqd_mode: required mode of operation
420 *
421 * Returns:
422 * 0 on success, -error on failure/timeout
423 */
424 int drm_lspcon_set_mode(struct i2c_adapter *adapter,
425 enum drm_lspcon_mode mode)
> 426 {
427 u8 data = 0;
428 int ret;
429 int time_out = 200;
---
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