linux-stable.git/drivers/gpu/drm/amd/display/dc/core, branch v6.3 Linux kernel stable tree Revert "drm/amd/display: enable DPG when disabling plane for phantom pipe" 2023-02-16T03:23:13+00:00 Qingqing Zhuo qingqing.zhuo@amd.com 2023-02-15T06:40:40+00:00 d8f3b3951ff4db44cd4695c396e26160de789370 This reverts commit d47d2f9392f69f069c31d60ac3088471b1e1c7d4. regression detected by the change. Revert until fix is available. Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
This reverts commit d47d2f9392f69f069c31d60ac3088471b1e1c7d4.

regression detected by the change. Revert until
fix is available.

Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: move public dc link function implementation to dc_link_exports 2023-02-14T21:06:28+00:00 Wenjing Liu wenjing.liu@amd.com 2023-02-01T21:07:35+00:00 5ca38a18b5a47017d0e9a016661dad12322767fa [why] Link is a subcomponent in dc. DM should be aware of dc link structure as one of the abstracted objects maintained by dc. However it should have no idea of the existence of a link component in dc dedicated to maintain the states of dc link structure. As such we are moving link interfaces out of dc_link.h and directly added to dc.h. We are grandually fading out the explicit inclusion of dc_link header and eventually delete it. On dc side, since link is a subcomponent behind dc interfaces, it is not a good idea to implement dc interfaces in each individual subcomponent of link which is already a subcomponent of dc. So we are decoupling it by implementing a dc_link_exports in dc. This file will be a thin translation layer that breaks the dependency so link is able to make interface changes without breaking DM. 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> 
[why]
Link is a subcomponent in dc. DM should be aware of dc link structure
as one of the abstracted objects maintained by dc. However it should
have no idea of the existence of a link component in dc dedicated to
maintain the states of dc link structure. As such we are moving link interfaces
out of dc_link.h and directly added to dc.h. We are grandually fading out
the explicit inclusion of dc_link header and eventually delete it.

On dc side, since link is a subcomponent behind dc interfaces, it is not
a good idea to implement dc interfaces in each individual subcomponent
of link which is already a subcomponent of dc. So we are decoupling it
by implementing a dc_link_exports in dc. This file will be a thin
translation layer that breaks the dependency so link is able to make
interface changes without breaking DM.

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>
drm/amd/display: enable DPG when disabling plane for phantom pipe 2023-02-14T21:03:27+00:00 Samson Tam samson.tam@amd.com 2023-01-27T23:30:08+00:00 d47d2f9392f69f069c31d60ac3088471b1e1c7d4 [Why] In disable_dangling_plane, for phantom pipes, we enable OTG so disable programming gets the double buffer update. But this causes an underflow to occur. [How] Enable DPG prior to enabling OTG. Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Samson Tam <samson.tam@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
[Why]
In disable_dangling_plane, for phantom pipes, we enable OTG so
disable programming gets the double buffer update.  But this
causes an underflow to occur.

[How]
Enable DPG prior to enabling OTG.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Samson Tam <samson.tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: break down dc_link.c 2023-02-08T22:15:51+00:00 Wenjing Liu wenjing.liu@amd.com 2023-01-18T22:31:24+00:00 54618888d1ea7a26f8bccfb89e3c2420350c8047 [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> 
[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>
drm/amd/display: Add HDMI manufacturer OUI and device id read 2023-02-08T22:15:42+00:00 Leo (Hanghong) Ma hanghong.ma@amd.com 2023-01-18T18:59:42+00:00 71d7e8904d540dde6eaae4e3bac9cfd1894f4eaa [Why && How] Add support to read manufacturer OUI and device id from HDMI SCDC. Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
[Why && How]
Add support to read manufacturer OUI
and device id from HDMI SCDC.

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Do not commit pipe when updating DRR 2023-02-08T22:15:21+00:00 Wesley Chalmers Wesley.Chalmers@amd.com 2022-11-04T19:19:22+00:00 8f0d304d21b351d65e8c434c5399a40231876ba1 [WHY] DRR and Pipe cannot be updated on the same frame, or else underflow will occur. Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
[WHY]
DRR and Pipe cannot be updated on
the same frame, or else underflow will
occur.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu/display: remove duplicate include header in files 2023-02-03T20:37:41+00:00 ye xingchen ye.xingchen@zte.com.cn 2023-01-28T01:39:08+00:00 65a4cfb45e0e29a10fb35655f2375e1fc2f13c65 opp.h is included more than once. Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
opp.h is included more than once.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: merge dc_link_dp into dc_link 2023-01-24T18:26:25+00:00 Wenjing Liu wenjing.liu@amd.com 2023-01-09T21:52:39+00:00 6ca7415f11af5200ab10bd420b513f846e9bfb99 [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> 
[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>
drm/amd/display: move dp cts functions from dc_link_dp to link_dp_cts 2023-01-24T18:26:25+00:00 Wenjing Liu wenjing.liu@amd.com 2023-01-09T20:25:43+00:00 de3fb390175b573710f80d5812907d5afaa1d819 Create new files link_dp_cts.c and link_dp_cts.h, and move DP cts functions into them. 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> 
Create new files link_dp_cts.c and link_dp_cts.h, and move DP cts
functions into them.

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>
drm/amd/display: move dp irq handler functions from dc_link_dp to link_dp_irq_handler 2023-01-24T18:26:25+00:00 Wenjing Liu wenjing.liu@amd.com 2023-01-09T19:38:35+00:00 c5a31f178e3523802f497094d53aaccf77192813 Create new files link_dp_irq_handler.c and link_dp_irq_handler.h, and move DP irq handler functions into them. 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> 
Create new files link_dp_irq_handler.c and link_dp_irq_handler.h, and
move DP irq handler functions into them.

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>