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drm/amd/display: Remove ddc write and read size checking

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[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>
This commit is contained in:
Leo Ma 2022-03-23 12:00:53 -04:00 committed by Alex Deucher
parent d9f442e9a2
commit e953cd08d7
1 changed files with 0 additions and 6 deletions
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6
drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
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@ -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;