mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-03 20:34:23 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amd/display: Reduce SCDC Status Flags Definition

Browse Source 
[Why]
Status flags definition is reduced to read
less bytes in SCDC transaction for status update.

[How]
Reduce definition of reserved bytes from 3 to 1
for status update.

Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Solomon Chiu <solomon.chiu@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chris Park
2022-06-23 18:21:59 -04:00
committed by Alex Deucher
parent c4e8555119
commit 236124d116
1 changed files with 2 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
View File

@@ -93,16 +93,13 @@ union hdmi_scdc_update_read_data {
};
union hdmi_scdc_status_flags_data {
uint8_t byte[2];
uint8_t byte;
struct {
uint8_t CLOCK_DETECTED:1;
uint8_t CH0_LOCKED:1;
uint8_t CH1_LOCKED:1;
uint8_t CH2_LOCKED:1;
uint8_t RESERVED:4;
uint8_t RESERVED2:8;
uint8_t RESERVED3:8;
} fields;
};
@@ -770,7 +767,7 @@ void dal_ddc_service_read_scdc_data(struct ddc_service *ddc_service)
sizeof(scramble_status));
offset = HDMI_SCDC_STATUS_FLAGS;
dal_ddc_service_query_ddc_data(ddc_service, slave_address,
&offset, sizeof(offset), status_data.byte,
&offset, sizeof(offset), &status_data.byte,
sizeof(status_data.byte));
}
}