diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3093-drm-amd-display-Add-debug-entry-to-destroy-disconnec.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3093-drm-amd-display-Add-debug-entry-to-destroy-disconnec.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3093-drm-amd-display-Add-debug-entry-to-destroy-disconnec.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3093-drm-amd-display-Add-debug-entry-to-destroy-disconnec.patch new file mode 100644 index 00000000..67266058 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3093-drm-amd-display-Add-debug-entry-to-destroy-disconnec.patch @@ -0,0 +1,67 @@ +From 0d4087e3311bc196972bfa8820912e2ad464411c Mon Sep 17 00:00:00 2001 +From: Lewis Huang <Lewis.Huang@amd.com> +Date: Tue, 2 Jul 2019 22:33:34 -0500 +Subject: [PATCH 3093/4256] drm/amd/display: Add debug entry to destroy + disconnected edp link + +Add a flag to dc_debug_options to determine if a disconnected edp link +should be destroyed. + +Change-Id: I49ccabe2cedc02d49fe3cd085710ea7459bca205 +Signed-off-by: Lewis Huang <Lewis.Huang@amd.com> +Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc.c | 20 ++++++++++++++++---- + drivers/gpu/drm/amd/display/dc/dc.h | 1 + + 2 files changed, 17 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c +index 886fcc1e701f..ecf562e386cb 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c +@@ -184,13 +184,25 @@ static bool create_links( + link = link_create(&link_init_params); + + if (link) { +- if (dc->config.edp_not_connected && +- link->connector_signal == SIGNAL_TYPE_EDP) { +- link_destroy(&link); +- } else { ++ bool should_destory_link = false; ++ ++ if (link->connector_signal == SIGNAL_TYPE_EDP) { ++ if (dc->config.edp_not_connected) ++ should_destory_link = true; ++ else if (dc->debug.remove_disconnect_edp) { ++ enum dc_connection_type type; ++ dc_link_detect_sink(link, &type); ++ if (type == dc_connection_none) ++ should_destory_link = true; ++ } ++ } ++ ++ if (!should_destory_link) { + dc->links[dc->link_count] = link; + link->dc = dc; + ++dc->link_count; ++ } else { ++ link_destroy(&link); + } + } + } +diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h +index 8d890468908f..85e1ce5d5225 100644 +--- a/drivers/gpu/drm/amd/display/dc/dc.h ++++ b/drivers/gpu/drm/amd/display/dc/dc.h +@@ -381,6 +381,7 @@ struct dc_debug_options { + bool scl_reset_length10; + bool hdmi20_disable; + bool skip_detection_link_training; ++ bool remove_disconnect_edp; + unsigned int force_odm_combine; //bit vector based on otg inst + unsigned int force_fclk_khz; + bool disable_tri_buf; +-- +2.17.1 + |