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drm/amd/display: fix i2c wtire mot incorrect issue

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[Why]
I2C write command always send mot = true will cause sink state incorrect.

[How]
1. Remove default i2c write mot = true.
2. Deciding mot flag by is_end_of_payload flag.

Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lewis Huang 2019-08-27 17:03:41 +08:00 committed by Alex Deucher
parent 616f5b65f1
commit 0594ffee90
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c
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@ -525,7 +525,7 @@ bool dal_ddc_service_query_ddc_data(
if (write_size != 0) {
payload.write = true;
payload.mot = true;
payload.mot = false;
payload.length = write_size;
payload.data = write_buf;
@ -594,7 +594,7 @@ bool dal_ddc_submit_aux_command(struct ddc_service *ddc,
current_payload.i2c_over_aux = payload->i2c_over_aux;
current_payload.length = is_end_of_payload ?
payload->length - retrieved : DEFAULT_AUX_MAX_DATA_SIZE;
current_payload.mot = payload->mot ? payload->mot : !is_end_of_payload;
current_payload.mot = !is_end_of_payload;
current_payload.reply = payload->reply;
current_payload.write = payload->write;