diff options
| author |   Leo Ma <hanghong.ma@amd.com> | 2022-03-23 12:00:53 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-04-25 17:11:13 -0400 |
| commit | e953cd08d78256764721e459ce11f9d41e8934f9 (patch) | |
| tree | 1d673e224e2e30e5ba70203ec6fd0c9d8a7450f6 /drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | |
| parent | drm/amd/display: read PSR-SU cap DPCD for specific panel (diff) | |
| download | linux-dev-e953cd08d78256764721e459ce11f9d41e8934f9.tar.xz linux-dev-e953cd08d78256764721e459ce11f9d41e8934f9.zip | |
drm/amd/display: Remove ddc write and read size checking
[Why]
Customer found I2C over AUX using ADL_Display_DDCBlockAccess_Get
will fail when sending more than 256 bytes of data;
[How]
Remove the write and read size checking to allow sending data more
than 256 bytes;
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Leo Ma <hanghong.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c index 1d4863763df9..2b09310965bc 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c @@ -543,15 +543,9 @@ bool dal_ddc_service_query_ddc_data( uint32_t payloads_num = write_payloads + read_payloads; - - if (write_size > EDID_SEGMENT_SIZE || read_size > EDID_SEGMENT_SIZE) - return false; - if (!payloads_num) return false; - /*TODO: len of payload data for i2c and aux is uint8!!!!, - * but we want to read 256 over i2c!!!!*/ if (dal_ddc_service_is_in_aux_transaction_mode(ddc)) { struct aux_payload payload; |