From: Max Tseng <[email protected]> Add control flag to dc_stream_state to skip eDP BL off/link off.
Acked-by: Stylon Wang <[email protected]> Signed-off-by: Max Tseng <[email protected]> Reviewed-by: Anthony Koo <[email protected]> --- drivers/gpu/drm/amd/display/dc/dc_stream.h | 1 + .../gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 3 ++- drivers/gpu/drm/amd/display/dc/link/link_dpms.c | 7 ++++--- 3 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h index d5b3e3a32cc6..3697ea1d14c1 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_stream.h +++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h @@ -302,6 +302,7 @@ struct dc_stream_state { bool vblank_synchronized; bool fpo_in_use; struct mall_stream_config mall_stream_config; + bool skip_edp_power_down; }; #define ABM_LEVEL_IMMEDIATE_DISABLE 255 diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index d4cacb8df631..6c9ca43d1040 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1216,7 +1216,8 @@ void dce110_blank_stream(struct pipe_ctx *pipe_ctx) struct dce_hwseq *hws = link->dc->hwseq; if (link->local_sink && link->local_sink->sink_signal == SIGNAL_TYPE_EDP) { - hws->funcs.edp_backlight_control(link, false); + if (!stream->skip_edp_power_down) + hws->funcs.edp_backlight_control(link, false); link->dc->hwss.set_abm_immediate_disable(pipe_ctx); } diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index 2963267fe74a..d719a666f974 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -2207,9 +2207,8 @@ static enum dc_status enable_link( * link settings. Need to call disable first before enabling at * new link settings. */ - if (link->link_status.link_active) { + if (link->link_status.link_active && !stream->skip_edp_power_down) disable_link(link, &pipe_ctx->link_res, pipe_ctx->stream->signal); - } switch (pipe_ctx->stream->signal) { case SIGNAL_TYPE_DISPLAY_PORT: @@ -2327,7 +2326,9 @@ void link_set_dpms_off(struct pipe_ctx *pipe_ctx) dc->hwss.disable_stream(pipe_ctx); } else { dc->hwss.disable_stream(pipe_ctx); - disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal); + if (!pipe_ctx->stream->skip_edp_power_down) { + disable_link(pipe_ctx->stream->link, &pipe_ctx->link_res, pipe_ctx->stream->signal); + } } if (pipe_ctx->stream->timing.flags.DSC) { -- 2.40.1
