drm/amd/display: blank dp stream before power off receiver (c5f5b9d9) · Commits · 戴 / test

[why] power off dp receiver directly cause garbage during hw init [how] blank dp stream and then power off receiver Signed-off-by:

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1328,6 +1328,14 @@ void dcn10_init_hw(struct dc *dc)
		uint8_t dpcd_power_state = '\0';
		enum dc_status status = DC_ERROR_UNEXPECTED;

		/* blank all dp streams before power off receiver,
		* this should only impact DP
		*/
		for (i = 0; i < dc->res_pool->stream_enc_count; i++) {
		dc->res_pool->stream_enc[i]->funcs->dp_blank(
		dc->res_pool->stream_enc[i]);
		}

		for (i = 0; i < dc->link_count; i++) {
		if (dc->links[i]->connector_signal != SIGNAL_TYPE_DISPLAY_PORT)
		continue;