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8abf2636 |
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05-Feb-2024 |
Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> |
drm/amd/display: Initialize 'wait_time_microsec' variable in link_dp_training_dpia.c wait_time_microsec = max(wait_time_microsec, (uint32_t) DPIA_CLK_SYNC_DELAY); Above line is trying to assign the maximum value between 'wait_time_microsec' and 'DPIA_CLK_SYNC_DELAY' to wait_time_microsec. However, 'wait_time_microsec' has not been assigned a value before this line, initialize 'wait_time_microsec' at the point of declaration. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_dpia.c:697 dpia_training_eq_non_transparent() error: uninitialized symbol 'wait_time_microsec'. Fixes: 630168a97314 ("drm/amd/display: move dp link training logic to link_dp_training") Cc: Wenjing Liu <wenjing.liu@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Roman Li <roman.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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7edb5830 |
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05-Feb-2024 |
Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> |
drm/amd/display: Initialize 'wait_time_microsec' variable in link_dp_training_dpia.c wait_time_microsec = max(wait_time_microsec, (uint32_t) DPIA_CLK_SYNC_DELAY); Above line is trying to assign the maximum value between 'wait_time_microsec' and 'DPIA_CLK_SYNC_DELAY' to wait_time_microsec. However, 'wait_time_microsec' has not been assigned a value before this line, initialize 'wait_time_microsec' at the point of declaration. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_training_dpia.c:697 dpia_training_eq_non_transparent() error: uninitialized symbol 'wait_time_microsec'. Fixes: 630168a97314 ("drm/amd/display: move dp link training logic to link_dp_training") Cc: Wenjing Liu <wenjing.liu@amd.com> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Roman Li <roman.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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d24e50e1 |
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01-Dec-2023 |
George Shen <george.shen@amd.com> |
drm/amd/display: Skip DPIA-specific DP LL automation flag for non-DPIA links [Why] The is_automated flag logic only applies to USB4 DPIA links during DP LL compliance test automation. The flag should not be set for non-DPIA cases. [How] Add check for DPIA link endpoint type before setting the flag. Also, rename is_automated to skip_fallback_on_link_loss for clarity. Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Reviewed-by: Wenjing Liu <wenjing.liu@amd.com> Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Signed-off-by: George Shen <george.shen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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88c7ad91 |
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13-Apr-2023 |
Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> |
drm/amd/display: Add logging when DP link training Clock recovery is Successful Log when Clock recovery is successful, as part of DP link training process. Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Fangzhi Zuo <Jerry.Zuo@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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788c6e2c |
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16-Feb-2023 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: replace all dc_link function call in link with link functions [why] Link components should not reply on dc_link_exports to access link function in other link components. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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202a3816 |
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14-Feb-2023 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: move dc_link functions in protocols folder to dc_link_exports [why] link component should only have one interface serving dc. [how] We are moving dc_link functions exposed to DM to dc_link_exports and unify link component interface in link.h with function pointer to match the style of other dc component. This is the third step to move dc_link functions under protocols folder to dc_link_exports. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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7ae1dbe6 |
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06-Feb-2023 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: merge dc_link.h into dc.h and dc_types.h [why] Remove the need to include dc_link.h separately. dc.h should contain everything needed on DM side. [How] Merge dc_link.h into dc.h and dc_types.h so DM only needs to include dc.h to use all link public functions. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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c69fc3d0 |
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03-Feb-2023 |
Aric Cyr <aric.cyr@amd.com> |
drm/amd/display: Reduce CPU busy-waiting for long delays [WHY] udelay should not be used for long waits since it keeps CPU active, wasting power. [HOW] Use fsleep where acceptable to allow CPU cores to be parked by the scheduler. Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Aric Cyr <aric.cyr@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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54618888 |
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18-Jan-2023 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: break down dc_link.c [why] dc_link contains over 30k line of code, the decision is to break it down to files residing in link folder based on functionality. This change is the last break down change which will remove dc_link.c file after everything is broken down. [how] Move remaining dc_link.c functions into link_detection, link_dpms, link_validation, link_resource, and link_fpga and remove dc_link. Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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6ca7415f |
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09-Jan-2023 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: merge dc_link_dp into dc_link [why] Temporarly merge dc_link_dp functions into dc_link for the purpose of removing dc_link_dp files. This is a transitional change for later commits where we will further refactor dc_link file. Reviewed-by: George Shen <George.Shen@amd.com> Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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bc33f5e5 |
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16-Dec-2022 |
Wenjing Liu <wenjing.liu@amd.com> |
drm/amd/display: create accessories, hwss and protocols sub folders in link [why] link component contains three sub folders: accessories - utilities for improving testability, logging or tracing, doesn't impact end user use cases. protocols - specs defined protocols used in end user use cases hwss - hwss owned link_hwss object, served as an abstraction layer in hwss to access various types of encoder/phy/dpia endpoints in a unified interface. sooner we will have files directly under link folder one for the implementation of each major link behavior such as link_create, link_detect, link_validate and link_set_dpms. Reviewed-by: George Shen <George.Shen@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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