Commit e953cd08 authored by Leo Ma's avatar Leo Ma Committed by Alex Deucher
Browse files

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: default avatarMartin Leung <Martin.Leung@amd.com>
Acked-by: default avatarTom Chung <chiahsuan.chung@amd.com>
Signed-off-by: default avatarLeo Ma <hanghong.ma@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d9f442e9

drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c

+0 −6
Original line number Diff line number Diff line
@@ -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;