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2020-07-15drm/amd/sriov skip vcn powergating and dec_ring_testJack Zhang
1.Skip decode_ring test in VF, because VCN in SRIOV does not support direct register read/write. 2.Skip powergating configuration in hw fini because VCN3.0 SRIOV doesn't support powergating. V2: delete unneccessary white lines and refine implementation. Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Reviewed-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdgpu: correct ta header v2 ucode init start addressJohn Clements
resolve bug calculating fw start address within binary Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/sriov porting sriov cap to vcn3.0Jack Zhang
1.In early_init and for sriov, hardcode harvest_config=0, enc_num=1 2.sw_init/fini alloc & free mm_table for sriov doorbell setting for sriov 3.hw_init/fini Under sriov, add start_sriov to config mmsch Skip ring_test to avoid mmio in VF, but need to initialize wptr for vcn rings. 4.Implementation for vcn_v3_0_start_sriov V2:Clean-up some uneccessary funciton declaration. Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Reviewed-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/sriov add mmsch_v3 interfaceJack Zhang
For VCN3.0 SRIOV, Guest driver needs to communicate with mmsch to set the World Switch for MM appropriately. This patch add the interface for mmsch_v3.0. Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Reviewed-by: Dennis Li <Dennis.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdgpu: optimize rlcg write for gfx_v10Jack Zhang
For gfx10 boards, except for nv12, other boards take mmio write rather than rlcg write Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/sriov skip jped ip block and close pgcg flagsJack Zhang
For SIENNA_CICHLID SRIOV, jpeg and pgcp is not supported. Signed-off-by: Jack Zhang <Jack.Zhang1@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unused code around thermal range settingEvan Quan
Leftover of previous cleanups. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: maximum the code sharing on thermal irq settingEvan Quan
Put the common code in smu_v11_0.c instead of having one copy each. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: sort the call flow on temperature ranges retrievingEvan Quan
This can help to maintain clear code layer. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: cache the software_shutdown_tempEvan Quan
As it's needed in the succeeding thermal irq setting. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: correct Sienna Cichlid temperature limit settingsEvan Quan
These are needed for temp1/2/3 related hwmon interfaces. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: correct Navi1X temperature limit settingsEvan Quan
These are needed for temp1/2/3 related hwmon interfaces. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: correct the supported pcie GenSpeed and LaneCountEvan Quan
The LCLK dpm table setup should be performed in .update_pcie_parameters(). Otherwise, the updated GenSpeed and LaneCount information will be lost. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unnecessary wrapper around pcie parameters settingEvan Quan
This can also help to maintain clear code layer. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unused APIs and parametersEvan Quan
Leftover of previous performance level setting cleanups. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop smu_v12_0.c unnecessary wrapper V2Evan Quan
By moving the implemention to renoir_ppt.c considering it's really ASIC specific. V2: fix compile warnings below drivers/gpu/drm/amd/amdgpu/../powerplay/renoir_ppt.h:40:25: warning: array subscript is above array bounds [-Warray-bounds] freq = table->FClocks[dpm_level].Freq; \ drivers/gpu/drm/amd/amdgpu/../powerplay/renoir_ppt.c:195:2: note: in expansion of macro ‘GET_DPM_CUR_FREQ’ GET_DPM_CUR_FREQ(clk_table, clk_type, dpm_level, *freq); ^~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../powerplay/renoir_ppt.h:46:25: warning: array subscript is above array bounds [-Warray-bounds] freq = table->FClocks[dpm_level].Freq; \ drivers/gpu/drm/amd/amdgpu/../powerplay/renoir_ppt.c:195:2: note: in expansion of macro ‘GET_DPM_CUR_FREQ’ GET_DPM_CUR_FREQ(clk_table, clk_type, dpm_level, *freq); Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unnecessary wrappersEvan Quan
By calling the target APIs directly. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: apply gfxoff disablement/enablement for all SMU11 ASICsEvan Quan
Before and after setting gfx clock soft max/min frequency. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop Sienna Cichlid specific set_soft_freq_limited_rangeEvan Quan
Use the common smu_v11_0_set_soft_freq_limited_range. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unnecessary Sienna Cichlid specific APIsEvan Quan
As a common performance level setting API is used. Then these ASIC specific APIs are not needed any more. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unnecessary Navi1x specific APIsEvan Quan
As a common performance level setting API is used. Then these ASIC specific APIs are not needed any more. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: drop unnecessary Arcturus specific APIsEvan Quan
As a common performance level setting API is used. Then these ASIC specific APIs are not needed any more. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: update the common API for performance level settingEvan Quan
So that it can be more widely shared around SMU v11 ASICs. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: update UMD pstate clock settingsEvan Quan
Preparing for coming code sharing around performance level setting. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: add new UMD pstate data structureEvan Quan
This is used to cache the clock frequencies for all UMD pstates. So that we do not need to calculate from scratch on every UMD pstate switch. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: update Sienna Cichlid default dpm table setupEvan Quan
Cache all clocks levels for every dpm table. They are needed by other APIs. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: update Navi10 default dpm table setupEvan Quan
Cache all clocks levels for every dpm table. They are needed by other APIs. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: update Arcturus default dpm table settingEvan Quan
Preparing for coming code sharing around performance level setting. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: implement a common set dpm table API for smu V11Evan Quan
Maximum the code sharing around smu V11. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: add more members for dpm tableEvan Quan
These members can help to cache the clock frequencies for all dpm levels. Then simplifying the code for dpm level switching is possible. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdgpu: add module parameter choose reset modeWenhui Sheng
Default value is auto, doesn't change original reset method logic. v2: change to use parameter reset_method v3: add warn msg if specified mode isn't supported Signed-off-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdgpu: enable mode1 resetWenhui Sheng
For sienna cichlid, add mode1 reset path for sGPU. v2: hiding MP0/MP1 mode1 reset under AMD_RESET_METHOD_MODE1 v3: split emergency restart logic to a new patch Signed-off-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdgpu: RAS emergency restart logic refineWenhui Sheng
If we are in RAS triggered situation and BACO isn't support, emergency restart is needed, and this code is only needed for some specific cases(vega20 with given smu fw version). After we add smu mode1 reset for sienna cichlid, we need to share AMD_RESET_METHOD_MODE1 with psp mode1 reset, so in amdgpu_device_gpu_recover, we need differentiate which mode1 reset we are using, then decide if it's a full reset and then decide if emergency restart is needed, the logic will become much more complex. After discussion with Hawking, move emergency restart logic to an independent function. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amd/powerplay: add SMU mode1 resetWenhui Sheng
From PM FW 58.26.0 for sienna cichlid, SMU mode1 reset is support, driver sends PPSMC_MSG_Mode1Reset message to PM FW could trigger this reset. v2: add mode1 reset dpm interface v3: change maro name Signed-off-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-15drm/amdkfd: fix kernel-doc and cleanupRajneesh Bhardwaj
- fix some styling issues - fixes for kernel-doc type Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: remove an unnecessary NULL checkDan Carpenter
The "stream" pointer can't be NULL and it's dereferenced on the line before so the check doesn't make sense. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amdgpu/sdma5: fix wptr overwritten in ->get_wptr()Xiaojie Yuan
"u64 *wptr" points to the the wptr value in write back buffer and "*wptr = (*wptr) >> 2;" results in the value being overwritten each time when ->get_wptr() is called. umr uses /sys/kernel/debug/dri/0/amdgpu_ring_sdma0 to get rptr/wptr and decode ring content and it is affected by this issue. fix and simplify the logic similar as sdma_v4_0_ring_get_wptr(). v2: fix for sdma5.2 as well Suggested-by: Le Ma <le.ma@amd.com> Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amdgpu: use ARRAY_SIZE() to add amdgpu debugfs filesXiaojie Yuan
to easily add new debugfs file w/o changing the hardcoded list count. Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amdgpu/powerplay: Modify SMC message name for setting power profile modechen gong
I consulted Cai Land(Chuntian.Cai@amd.com), he told me corresponding smc message name to fSMC_MSG_SetWorkloadMask() is "PPSMC_MSG_ActiveProcessNotify" in firmware code of Renoir. Strange though it may seem, but it's a fact. Signed-off-by: chen gong <curry.gong@amd.com> Reviewed-by: Evan Quan <evan.quan@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: Allow for vblank enabled with no active planesNicholas Kazlauskas
[Why] CRC capture doesn't work when the active plane count is 0 since we currently tie both vblank and pageflip interrupts to active_plane_count greater than 0. [How] The frontend is what generates the vblank interrupts while the backend is what generates pageflip interrupts. Both have a requirement for the CRTC to be active, so control the overall interrupt state based on that instead. Pageflip interrupts need to be enabled based on active plane count, but we actually rely on power gating to take care of disabling the interrupt for us on pipes that can be power gated. For pipes that can't be power gated it's still fine to leave it enabled since the interrupt only triggers after the address has been written to that particular pipe - which we won't be doing without an active plane. The issue we had before with this setup was that we couldn't force the state back on. We were essentially manipulating the refcount to enable or disable as needed in a two pass approach. However, there is a function that solves this problem more elegantly: amdgpu_irq_update() will unconditionally call the set based on what it thinks the current enablement state is. This leaves two future TODO items for our IRQ handling: - Disabling IRQs in commit tail instead of atomic commit - Mapping the pageflip interrupt to VUPDATE or something that's tied to the frontend instead of the backend since the mapping to CRTC is not correct Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: Add missing DCN30 registers and fields for OTG_CRC_CNTL2Nicholas Kazlauskas
[Why] When enabling the debugfs for CRC capture we hit assertions caused by register address and field masks and shifts missing. [How] We want these registers programmed, so add in the SRI/SF entries for this register. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: handle failed allocation during stream constructionJosip Pavic
[Why] Failing to allocate a transfer function during stream construction leads to a null pointer dereference [How] Handle the failed allocation by failing the stream construction Cc: stable@vger.kernel.org Signed-off-by: Josip Pavic <Josip.Pavic@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: Reuse parsing code of debugfs write bufferMikita Lipski
[why] Move code for parsing debugfs input into an array of int parameters by specifying the max number of expected parameters Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: 3.2.94Aric Cyr
Signed-off-by: Aric Cyr <aric.cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: [FW Promotion] Release 0.0.24Anthony Koo
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: fix dcn3 p_state_change_support validation (v2)Dmytro Laktyushkin
Our validation is a known mess with actual validation mixed with topology configuration. This change makes sure topolgical validation is completed before any topology changes are made so we do not run into issues where we merge and split a pipe over the course of a single call. v2: Squash in compilation fix Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: p-state warning occurs while changing resolution from 120hz ↵hersen wu
to 60hz [Why] new calculated dispclk, dppclk are stored in context->bw_ctx.bw.dcn.clk.dispclk_khz, dppclk_khz. Current dispclk, dppclk are from dc->clk_mgr->clks.dispclk_khz. dcn_validate_bandwidth compute new dispclk, dppclk. dispclk will put in use after optimize_bandwidth when ramp_up_dispclk_with_dpp is called. There are two places for dppclk be put in use. One location is the same as the location as dispclk. Another is within update_dchubp_dpp which happens between pre_bandwidth and optimize_bandwidth. dppclk updated within update_dchubp_dpp will cause new clock values of dispclk and dppclk not be in use at the same time. when clocks are decreased, this may cause dppclk is lower than current configuration and let pipe stuck. for example, eDP + external dp, change resolution of DP from 1920x1080x144hz to 1280x960x60hz. before change: dispclk = 337889 dppclk = 337889 change mode, dcn_validate_bandwidth calculate dispclk = 143122 dppclk = 143122 update_dchubp_dpp be executed before dispclk be updated, dispclk = 337889, but dppclk use new value dispclk /2 = 168944. this will cause pipe pstate warning issue. [How] between pre_bandwidth and optimize_bandwidth, while dispclk is going to be decreased, keep dppclk = dispclk Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: OLED panel backlight adjust not work with external display ↵hersen wu
connected [Why] amdgpu_dm->backlight_caps is for single eDP only. the caps are upddated for very connector. Real eDP caps will be overwritten by other external display. For OLED panel, caps->aux_support is set to 1 for OLED pnael. after external connected, caps+.aux_support is set to 0. This causes OLED backlight adjustment not work. [How] within update_conector_ext_caps, backlight caps will be updated only for eDP connector. Cc: stable@vger.kernel.org Signed-off-by: hersen wu <hersenxs.wu@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: reduce sr_xxx_time by 3 us when ppt disableChiawen Huang
[Why] when ppt disabled, the watermark doesn't get fine tune causing underflow. [How] It is a temporary solution to reduce sr_xxx_time by 3 us when ppt disable. Signed-off-by: Chiawen Huang <chiawen.huang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-07-14drm/amd/display: Power down hardware if set mode is not called before timeoutSung Lee
[WHY] In headless systems, if set mode is not called, hardware will not be powered down on boot, causing HW/SW discrepancies. Powering down hardware on boot will ensure SW state is accurate. [HOW] Set a timer callback on boot for 10 seconds. If set mode is not called within that time, power down hardware. Otherwise, do not power down. Signed-off-by: Sung Lee <sung.lee@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 11:35:51 +0000