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path: root/drivers/gpu/drm/amd/display/dc/dce110
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2018-11-05drm/amd/display: rename dccg to clk_mgrDmytro Laktyushkin2-10/+10
In preparation for adding the actual dccg block since the current implementation of dccg is mor eof a clock manager than a hw block Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: split dccg clock manager into asic foldersDmytro Laktyushkin1-1/+1
Currently dccg contains code related to every dcn revision in a single file. This change splits out the dcn parts of code into correct folders Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: clean up base dccg structDmytro Laktyushkin1-8/+0
Move things not accessed outside dccg block into dce specific struct Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: remove safe_to_lower flag from dc, use 2 functions insteadDmytro Laktyushkin2-12/+27
This is done to keep things more readable, avoids a true/false flag in dc interface layer. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-11-05drm/amd/display: move pplib/smu notification to dccg blockDmytro Laktyushkin3-218/+12
This is done to clear up the clock programming sequence since the only time we need to notify pplib is after clock update. This also renames the clk block to dccg, at the moment this block contains both clock management and dccg functionality. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-25drm/amd/display: Disable 4k 60 HDMI on DCE11David Francis1-1/+1
[Why] Carrizo and Stoney have severe corruption when trying to power 4k 60 monitors over HDMI connectors that support 4k 60. Carrizo and Stoney require retimers and redrivers to support 4k 60 over HDMI. This driver does not currently support these. Thus, 4k 60 HDMI (and all other modes requiring over 300MHz) should be disabled. [How] Reduce the dce11 HDMI pixel clock cap to 300000kHz. Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-10drm/amd/display: fix memory leak in resource poolsJun Lei1-0/+2
[why] ddc engines were recently changed to be independently tracked from pipe count. the change was reflected in resource constructor but not in destructor. this manifests as a memory leak when pipe harvesting is enabled, since not all constructed ddc engines are freed [how] make destructor symmetric with constructor for all dcX_resource Signed-off-by: Jun Lei <Jun.Lei@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-10drm/amd/display: clean up encoding checksEric Yang1-2/+1
[Why] All ASICS we support has YCbCr support, so the check is unnecessary, the currently logic in validate output also returns true all the time, so the unneccessary logic is removed Signed-off-by: Eric Yang <Eric.Yang2@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-10-04BackMerge v4.19-rc6 into drm-nextDave Airlie2-6/+1
I have some pulls based on rc6, and I prefer to have an explicit backmerge. Signed-off-by: Dave Airlie <airlied@redhat.com>
2018-09-27drm/amd/display: Fix Vega10 lightup on S3 resumeRoman Li2-6/+1
[Why] There have been a few reports of Vega10 display remaining blank after S3 resume. The regression is caused by workaround for mode change on Vega10 - skip set_bandwidth if stream count is 0. As a result we skipped dispclk reset on suspend, thus on resume we may skip the clock update assuming it hasn't been changed. On some systems it causes display blank or 'out of range'. [How] Revert "drm/amd/display: Fix Vega10 black screen after mode change" Verified that it hadn't cause mode change regression. Signed-off-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-27drm/amd/display: Refactor FPGA-specific link setupNikola Cornij1-14/+1
FPGA doesn't program backend, so we don't need certain link settings (audio stream for example). Signed-off-by: Nikola Cornij <nikola.cornij@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-14drm/amd/display: Fix 3D stereo issues.Charlene Liu1-0/+3
We were not providing the correct pixel clocks to DML for marks calculation. Signed-off-by: Charlene Liu <charlene.liu@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-09-11drm/amd/display: num of sw i2c/aux engines less than num of connectorsHersen Wu1-0/+4
[why] AMD Stoney reference board, there are only 2 pipes (not include underlay), and 3 connectors. resource creation, only 2 I2C/AUX engines are created. Within dc_link_aux_transfer, when pin_data_en =2, refer to enengines[ddc_pin->pin_data->en] = NULL. NULL point is referred later causing system crash. [how] each asic design has fixed number of ddc engines at hw side. for each ddc engine, create its i2x/aux engine at sw side. Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amd/display: move edp fast boot optimization flag to streamAnthony Koo1-10/+18
[Why] During S4/S3 stress test it is possible to resume from S4 without calling mode set on eDP, meaning high level optimization flag is not reset. If this is followed by an S3 resume call, driver will see optimization flag is set and consume it and think backend is powered on when in fact it is not. This results in PHY being off in sequence where S4->Resume->S3->Resume->ApplyOpt->black screen. [How] Move optimization flag to stream instead of a DC flag. Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amd/display: Create new i2c resourceDavid Francis1-1/+50
[Why] I2C code did not match dc resource model and was generally unpleasant [How] Move code into new svelte dce_i2c files, replacing various i2c objects with two structs: dce_i2c_sw and dce_i2c_hw. Fully split sw and hw code paths. Remove all redundant declarations. Use address lists to distinguish between versions. Change dce80 code to newer register access macros. Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amd/display: decouple front and backend pgm using dpms_off as backend ↵Samson Tam1-37/+1
enable flag Signed-off-by: Samson Tam <Samson.Tam@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amd/display: Refactor FreeSync moduleAnthony Koo1-8/+26
Remove dependency on internal sink map and instead use existing stream and plane state Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-27drm/amd/display: Add support for toggling DFS bypassNicholas Kazlauskas1-2/+10
[Why] If the hardware supports DFS bypass it will always be enabled after creation of the DCCG. DFS bypass should only be enabled when the current stream consists of a single embedded panel and the minimum display clock is below the DFS bypass threshold. [How] Add a function to the DCCG table that updates the DFS bypass state when setting the bandwidth. If the DFS bypass state is changed, the clock needs to be reprogrammed to reflect this before the DPREFCLK is updated for audio endpoints. The existing display clock value is used as the target display clock value when reprogramming since the resulting change will be equal or larger to the current value. These changes only specifically target dce110 but do offer a framework for support on other applicable targets. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: David Francis <David.Francis@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-21Revert "drm/amdgpu/display: Replace CONFIG_DRM_AMD_DC_DCN1_0 with CONFIG_X86"Leo (Sunpeng) Li1-1/+1
This reverts commit 8624c3c4dbfe24fc6740687236a2e196f5f4bfb0. We need CONFIG_DRM_AMD_DC_DCN1_0 to guard code that is using fp math. Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-21drm/amdgpu/display: disable eDP fast boot optimization on DCE8Alex Deucher1-1/+7
Seems to cause blank screens. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=106940 Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-14drm/amd/display: Check if clock source in use before disablingMikita Lipski1-1/+3
[why] We are disabling clock source while other pipes are still using it, because we don't verify the number of pipes that share it. [how] - Adding a function in resources to return the number of pipes sharing the clock source. - Checking that no one is sharing the clock source before disabling Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2018-08-06drm/amd/display: Use calculated disp_clk_khz value for dce110Nicholas Kazlauskas1-2/+2
[Why] The calculated values for actual disp_clk_khz were ignored when notifying pplib of the new display requirements. In order to honor DFS bypass clocks from the hardware, the calculated value should be used. [How] The return value for set_dispclk is now assigned back into new_clocks and correctly carried through into dccg->clks.phyclk_khz. When notifying pplib of new display requirements dccg->clks.phyclk_khz is used instead of dce.dispclk_khz. The value of dce.dispclk_khz was never explicitly set to anything before. A 15% higher display clock value than calculated is no longer requested for dce110 since it now makes use of the calculated value. Since dce112 makes use of dce110's set_bandwidth but not its update_clocks it needs to have the value correctly carried through. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-27drm/amd/display: Fix Vega10 black screen after mode changeJerry (Fangzhi) Zuo2-1/+6
[Why] The sequence is slightly changed when bring .set_bandwidth out from the end of programming backend to the end of programming surface. Vega10 doesn't like to get clocks updated if stream_count is zero in the current context (Atomic Reset). [How] Do not update clocks if no stream is showing up in the context. Fixes 1b2b130192 "dc: Remove 300Mhz minimum disp clk limit." Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-27drm/amd/display: flatten aux_engine and engineBhawanpreet Lakha1-2/+2
[Why] engine and aux_engine are unnecessary layers we want to remove this layer. [How] flatten engine and aux engine structs into one struct called aux_engine and remove all references to the engine struct. Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-24drm/amd/display: Decouple aux from i2cBhawanpreet Lakha1-0/+45
[Why] Aux engine is created from i2caux layer. We want to remove this layer and use the engine directly. [How] Decouple aux engine from i2caux. Move aux engine related code to dce folder and use dc resource pool to manage the engine. And use the engine functions directly Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-19drm/amdgpu/display: Replace CONFIG_DRM_AMD_DC_DCN1_0 with CONFIG_X86Michel Dänzer1-1/+1
Allowing CONFIG_DRM_AMD_DC_DCN1_0 to be disabled on X86 was an opportunity for display with Raven Ridge accidentally not working. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-17drm/amd/display: add HDR visual confirmGloria Li2-2/+2
[Why] Testing team wants a way to tell if HDR is on or not [How] Program the overscan color to visually indicate the HDR state of the top-most plane Signed-off-by: Gloria Li <geling.li@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Add NULL check for local sink in edp_power_controlYue Hin Lau1-2/+4
[WHY] PNP cause bsod regression fix [HOW] Add NULL check Signed-off-by: Yue Hin Lau <Yuehin.Lau@amd.com> Reviewed-by: Hugo Hu <Hugo.Hu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: add dcn cursor hotsport rotation and mirror supportDmytro Laktyushkin1-1/+2
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Patch for extend time to panel poweron.Hugo Hu1-3/+6
[WHY] In eDP spec, the min duration in LCDVDD on-off-on sequence should be 500ms, some BOE panels need 700ms to pass. [HOW] Add patch to wait more time when eDP power on. Signed-off-by: Hugo Hu <hugo.hu@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: add additional info for cursor position programmingDmytro Laktyushkin1-3/+4
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Convert remaining loggers off dc_loggerNicholas Kazlauskas1-20/+14
- Removed dal/dm/dc loggers from linux, switched to kernel prints - Modified functions that used these directly to use macros - dc_logger support is completely dropped from Linux Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Correct calculation of duration time.Hugo Hu1-2/+2
Signed-off-by: Hugo Hu <hugo.hu@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-10drm/amd/display: make function tables constChristian König1-1/+1
It is good practice to make global function tables const to avoid accidental override. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: add valid regoffset and NULL pointer checkCharlene Liu1-3/+4
Signed-off-by: Charlene Liu <charlene.liu@amd.com> Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: fix potential infinite loop in fbc pathRoman Li1-2/+2
- Fixing integer overflow bug in wait_for_fbc_state_changed() - Correct the max value of retries for the corresponding warning Signed-off-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: clean up set_bandwidth usageDmytro Laktyushkin1-5/+0
This removes redundant set_bandwidth calls as well as fixes a bug in post_set_address_update where dcn1 would never get to lower clocks. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: rename dce_disp_clk to dccgDmytro Laktyushkin1-3/+3
No functional change. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Nikola Cornij <Nikola.Cornij@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: remove invalid assert when no max_pixel_clk is foundDmytro Laktyushkin1-3/+0
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: rename display clock block to dccgDmytro Laktyushkin2-7/+7
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: redesign dce/dcn clock voltage update requestDmytro Laktyushkin2-133/+21
The goal of this change is to move clock programming and voltage requests to a single function. As of this change only dce is affected. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-06drm/amd/display: replace clocks_value struct with dc_clocksDmytro Laktyushkin1-16/+2
This will avoid structs with duplicate information. Also removes pixel clock voltage request. This has no effect since pixel clock does not affect dcn voltage and this function only matters for dcn. Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15drm/amd/display: Make it more clear when info frames affect DP or HDMIKrunoslav Kovac1-2/+11
Signed-off-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15drm/amdgpu/display: drop DRM_AMD_DC_FBC kconfig optionAlex Deucher3-28/+3
Just enable it always. This was leftover from feature bring up. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15drm/amd/display: Refactor audio programmingAnthony Koo2-107/+153
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-06-15drm/amd/display: fix type of variableGustavo A. R. Silva1-1/+1
Currently, the maximum value that *counter* can reach is 255, and code at line 150: while (counter < 1000) { implies a bigger value could be expected. Fix this by changing the type of variable *counter* from uint8_t to uint16_t. Addresses-Coverity-ID: 1470030 ("Operands don't affect result") Fixes: 2b6199a1d1b7 ("drm/amd/display: replace msleep with udelay in fbc path") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29drm/amd/display: add register offset != 0 check.Charlene Liu1-1/+1
Signed-off-by: Charlene Liu <charlene.liu@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-29drm/amd/display: replace msleep with udelay in fbc pathRoman Li1-4/+4
FBC enabling and disabling path has msleep which leads to BUG hit when called in atomic context, hence this patch replaces msleeps with udelays appropriately. Signed-off-by: Shirish S <shirish.s@amd.com> Signed-off-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-19drm/amd/display: get rid of 32.32 unsigned fixed pointDmytro Laktyushkin2-22/+22
32.32 is redundant, 31.32 does everything we use 32.32 for Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-19drm/amd/display: Cleanup unused SetPlaneConfigAnthony Koo1-69/+0
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-22 17:44:39 +0300