From 30bdf50b77bd3dbc111b4aeff7018d8c58ec7d8d Mon Sep 17 00:00:00 2001 From: Yongqiang Sun Date: Thu, 12 Nov 2020 11:21:16 -0500 Subject: [PATCH] drm/amd/display: Check multiple internal displays for power optimization. [Why & How] only apply multiple display power optimization in case there are more than one internal display. Signed-off-by: Yongqiang Sun Reviewed-by: Tony Cheng Acked-by: Anthony Koo Acked-by: Aric Cyr Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc.c | 16 ++++++++++++++++ drivers/gpu/drm/amd/display/dc/dc.h | 1 + 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 28b856e2686d..903353389edb 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -149,6 +149,20 @@ static void destroy_links(struct dc *dc) } } +static uint32_t get_num_of_internal_disp(struct dc_link **links, uint32_t num_links) +{ + int i; + uint32_t count = 0; + + for (i = 0; i < num_links; i++) { + if (links[i]->connector_signal == SIGNAL_TYPE_EDP || + links[i]->is_internal_display) + count++; + } + + return count; +} + static bool create_links( struct dc *dc, uint32_t num_virtual_links) @@ -250,6 +264,8 @@ static bool create_links( virtual_link_encoder_construct(link->link_enc, &enc_init); } + dc->caps.num_of_internal_disp = get_num_of_internal_disp(dc->links, dc->link_count); + return true; failed_alloc: diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index b170e653febc..115468d3f793 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -169,6 +169,7 @@ struct dc_caps { bool psp_setup_panel_mode; bool extended_aux_timeout_support; bool dmcub_support; + uint32_t num_of_internal_disp; enum dp_protocol_version max_dp_protocol_version; struct dc_plane_cap planes[MAX_PLANES]; struct dc_color_caps color;