diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4258-drm-amd-display-take-signal-type-from-link.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4258-drm-amd-display-take-signal-type-from-link.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4258-drm-amd-display-take-signal-type-from-link.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4258-drm-amd-display-take-signal-type-from-link.patch new file mode 100644 index 00000000..c8aec992 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4258-drm-amd-display-take-signal-type-from-link.patch @@ -0,0 +1,56 @@ +From 2d6d7bd8a7b1cbbb60f5a4233e389ee45d278973 Mon Sep 17 00:00:00 2001 +From: Lewis Huang <Lewis.Huang@amd.com> +Date: Thu, 3 Oct 2019 16:01:25 +0800 +Subject: [PATCH 4258/4736] drm/amd/display: take signal type from link + +[Why] +Signal is update to EDP when driver disable first encoder. The +following encoder using SIGNAL_TYPE_EDP to handle other +device. When encoder signal is HDMI, driver will detect it is dp +and release phy. It cause hw hang. + +[How] +Take signal type from link->connector_signal. + +Signed-off-by: Lewis Huang <Lewis.Huang@amd.com> +Reviewed-by: Eric Yang <eric.yang2@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + .../drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 11 +++-------- + 1 file changed, 3 insertions(+), 8 deletions(-) + +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 d1e14393a0f0..0d171874ef4e 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 +@@ -1418,8 +1418,6 @@ static enum dc_status apply_single_controller_ctx_to_hw( + static void power_down_encoders(struct dc *dc) + { + int i; +- enum connector_id connector_id; +- enum signal_type signal = SIGNAL_TYPE_NONE; + + /* do not know BIOS back-front mapping, simply blank all. It will not + * hurt for non-DP +@@ -1430,15 +1428,12 @@ static void power_down_encoders(struct dc *dc) + } + + for (i = 0; i < dc->link_count; i++) { +- connector_id = dal_graphics_object_id_get_connector_id(dc->links[i]->link_id); +- if ((connector_id == CONNECTOR_ID_DISPLAY_PORT) || +- (connector_id == CONNECTOR_ID_EDP)) { ++ enum signal_type signal = dc->links[i]->connector_signal; + ++ if ((signal == SIGNAL_TYPE_EDP) || ++ (signal == SIGNAL_TYPE_DISPLAY_PORT)) + if (!dc->links[i]->wa_flags.dp_keep_receiver_powered) + dp_receiver_power_ctrl(dc->links[i], false); +- if (connector_id == CONNECTOR_ID_EDP) +- signal = SIGNAL_TYPE_EDP; +- } + + dc->links[i]->link_enc->funcs->disable_output( + dc->links[i]->link_enc, signal); +-- +2.17.1 + |