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drm/amd/display: Fix compiler warnings

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[Why] Implicit conversions from wider integer types to byte-sized fields
were generating compiler warnings. These warnings hide intentional protocol
/storage boundaries and reduce signal quality during builds. Making
conversion intent explicit improves readability and warning hygiene
without changing behavior.

[How] Added explicit, type-safe  casts at intentional narrow-storage
boundaries. Kept data models & runtime logic unchanged, only clarifying
conversion intent.

Functionality and behavior is unchanged; only type intent is explicit.
Aligned warning cleanup with existing coding standards for explicit
boundary conversions.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Gaghik Khachatrian <gaghik.khachatrian@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Gaghik Khachatrian
2026-03-20 16:57:35 -04:00
committed by Alex Deucher
parent 17edfa32f1
commit 82f510ae5a
3 changed files with 8 additions and 6 deletions
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8
drivers/gpu/drm/amd/display/dc/dc.h
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@@ -1061,9 +1061,11 @@ struct dc_debug_options {
bool hdmi20_disable;
bool skip_detection_link_training;
uint32_t edid_read_retry_times;
unsigned int force_odm_combine; //bit vector based on otg inst
unsigned int seamless_boot_odm_combine;
unsigned int force_odm_combine_4to1; //bit vector based on otg inst
uint8_t force_odm_combine; //bit vector based on otg inst
uint8_t seamless_boot_odm_combine;
uint8_t force_odm_combine_4to1; //bit vector based on otg inst
int minimum_z8_residency_time;
int minimum_z10_residency_time;
bool disable_z9_mpc;

4
drivers/gpu/drm/amd/display/dc/dc_stream.h
View File

@@ -162,13 +162,13 @@ struct test_pattern {
#define SUBVP_DRR_MARGIN_US 100 // 100us for DRR margin (SubVP + DRR)
struct dc_stream_debug_options {
char force_odm_combine_segments;
uint8_t force_odm_combine_segments;
/*
* When force_odm_combine_segments is non zero, allow dc to
* temporarily transition to ODM bypass when minimal transition state
* is required to prevent visual glitches showing on the screen
*/
char allow_transition_for_forced_odm;
uint8_t allow_transition_for_forced_odm;
};
#define LUMINANCE_DATA_TABLE_SIZE 10

2
drivers/gpu/drm/amd/display/dc/dc_types.h
View File

@@ -205,7 +205,7 @@ struct dc_edid_caps {
uint32_t audio_latency;
uint32_t video_latency;
unsigned int freesync_vcp_code;
unsigned char freesync_vcp_code;
uint8_t qs_bit;
uint8_t qy_bit;