Re: [PATCH resend v2] drm/amdgpu: fix enum conversion in display_mode_vba

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Hi, I just wonder is there any further comment towards this patch? or anything needs to be correct?


Greetings,

Zeng Heng


On 2022/9/22 17:18, Zeng Heng wrote:
Fix below compile warning when open enum-conversion
option check (compiled with -Wenum-conversion):

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:
In function ‘dml20_ModeSupportAndSystemConfigurationFull’:
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3900:44:
error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
  3900 |     locals->ODMCombineEnablePerState[i][k] = false;
       |                                            ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3904:46:
error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
  3904 |       locals->ODMCombineEnablePerState[i][k] = true;
       |                                              ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3907:46:
error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
  3907 |       locals->ODMCombineEnablePerState[i][k] = true;
       |                                              ^
drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn20/display_mode_vba_20.c:3960:45:
error: implicit conversion from ‘enum <anonymous>’ to ‘enum odm_combine_mode’ [-Werror=enum-conversion]
  3960 |      locals->ODMCombineEnablePerState[i][k] = false;

Use the proper value from the right enumerated type,
dm_odm_combine_mode_disabled & dm_odm_combine_mode_2to1,
so there is no more implicit conversion.

The numerical values of dm_odm_combine_mode_disabled
& false and dm_odm_combine_mode_2to1 & true
happen to be the same, so there is no change in
behavior.

Signed-off-by: Zeng Heng <zengheng4@xxxxxxxxxx>
---
  .../amd/display/dc/dml/dcn20/display_mode_vba_20.c   |  8 ++++----
  .../amd/display/dc/dml/dcn20/display_mode_vba_20v2.c | 10 +++++-----
  .../amd/display/dc/dml/dcn21/display_mode_vba_21.c   | 12 ++++++------
  3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
index d3b5b6fedf04..6266b0788387 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
@@ -3897,14 +3897,14 @@ void dml20_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
  					mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine = mode_lib->vba.PixelClock[k] / 2
  							* (1 + mode_lib->vba.DISPCLKDPPCLKDSCCLKDownSpreading / 100.0);
- locals->ODMCombineEnablePerState[i][k] = false;
+				locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  				mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithoutODMCombine;
  				if (mode_lib->vba.ODMCapability) {
  					if (locals->PlaneRequiredDISPCLKWithoutODMCombine > mode_lib->vba.MaxDispclkRoundedDownToDFSGranularity) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					} else if (locals->HActive[k] > DCN20_MAX_420_IMAGE_WIDTH && locals->OutputFormat[k] == dm_420) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					}
  				}
@@ -3957,7 +3957,7 @@ void dml20_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
  				locals->RequiredDISPCLK[i][j] = 0.0;
  				locals->DISPCLK_DPPCLK_Support[i][j] = true;
  				for (k = 0; k <= mode_lib->vba.NumberOfActivePlanes - 1; k++) {
-					locals->ODMCombineEnablePerState[i][k] = false;
+					locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  					if (locals->SwathWidthYSingleDPP[k] <= locals->MaximumSwathWidth[k]) {
  						locals->NoOfDPP[i][j][k] = 1;
  						locals->RequiredDPPCLK[i][j][k] = locals->MinDPPCLKUsingSingleDPP[k]
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index edd098c7eb92..989d83ee3842 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -4008,17 +4008,17 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
  					mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine = mode_lib->vba.PixelClock[k] / 2
  							* (1 + mode_lib->vba.DISPCLKDPPCLKDSCCLKDownSpreading / 100.0);
- locals->ODMCombineEnablePerState[i][k] = false;
+				locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  				mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithoutODMCombine;
  				if (mode_lib->vba.ODMCapability) {
  					if (locals->PlaneRequiredDISPCLKWithoutODMCombine > MaxMaxDispclkRoundedDown) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					} else if (locals->DSCEnabled[k] && (locals->HActive[k] > DCN20_MAX_DSC_IMAGE_WIDTH)) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					} else if (locals->HActive[k] > DCN20_MAX_420_IMAGE_WIDTH && locals->OutputFormat[k] == dm_420) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					}
  				}
@@ -4071,7 +4071,7 @@ void dml20v2_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode
  				locals->RequiredDISPCLK[i][j] = 0.0;
  				locals->DISPCLK_DPPCLK_Support[i][j] = true;
  				for (k = 0; k <= mode_lib->vba.NumberOfActivePlanes - 1; k++) {
-					locals->ODMCombineEnablePerState[i][k] = false;
+					locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  					if (locals->SwathWidthYSingleDPP[k] <= locals->MaximumSwathWidth[k]) {
  						locals->NoOfDPP[i][j][k] = 1;
  						locals->RequiredDPPCLK[i][j][k] = locals->MinDPPCLKUsingSingleDPP[k]
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index 1d84ae50311d..b7c2844d0cbe 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -4102,17 +4102,17 @@ void dml21_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
  					mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine = mode_lib->vba.PixelClock[k] / 2
  							* (1 + mode_lib->vba.DISPCLKDPPCLKDSCCLKDownSpreading / 100.0);
- locals->ODMCombineEnablePerState[i][k] = false;
+				locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  				mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithoutODMCombine;
  				if (mode_lib->vba.ODMCapability) {
  					if (locals->PlaneRequiredDISPCLKWithoutODMCombine > MaxMaxDispclkRoundedDown) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					} else if (locals->DSCEnabled[k] && (locals->HActive[k] > DCN21_MAX_DSC_IMAGE_WIDTH)) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					} else if (locals->HActive[k] > DCN21_MAX_420_IMAGE_WIDTH && locals->OutputFormat[k] == dm_420) {
-						locals->ODMCombineEnablePerState[i][k] = true;
+						locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_2to1;
  						mode_lib->vba.PlaneRequiredDISPCLK = mode_lib->vba.PlaneRequiredDISPCLKWithODMCombine;
  					}
  				}
@@ -4165,7 +4165,7 @@ void dml21_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
  				locals->RequiredDISPCLK[i][j] = 0.0;
  				locals->DISPCLK_DPPCLK_Support[i][j] = true;
  				for (k = 0; k <= mode_lib->vba.NumberOfActivePlanes - 1; k++) {
-					locals->ODMCombineEnablePerState[i][k] = false;
+					locals->ODMCombineEnablePerState[i][k] = dm_odm_combine_mode_disabled;
  					if (locals->SwathWidthYSingleDPP[k] <= locals->MaximumSwathWidth[k]) {
  						locals->NoOfDPP[i][j][k] = 1;
  						locals->RequiredDPPCLK[i][j][k] = locals->MinDPPCLKUsingSingleDPP[k]
@@ -5230,7 +5230,7 @@ void dml21_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_l
  			mode_lib->vba.ODMCombineEnabled[k] =
  					locals->ODMCombineEnablePerState[mode_lib->vba.VoltageLevel][k];
  		} else {
-			mode_lib->vba.ODMCombineEnabled[k] = false;
+			mode_lib->vba.ODMCombineEnabled[k] = dm_odm_combine_mode_disabled;
  		}
  		mode_lib->vba.DSCEnabled[k] =
  				locals->RequiresDSC[mode_lib->vba.VoltageLevel][k];



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