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Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0987-drm-amd-display-Fix-two-MST-not-light-up-regressions.patch')
-rw-r--r--meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0987-drm-amd-display-Fix-two-MST-not-light-up-regressions.patch81
1 files changed, 0 insertions, 81 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0987-drm-amd-display-Fix-two-MST-not-light-up-regressions.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0987-drm-amd-display-Fix-two-MST-not-light-up-regressions.patch
deleted file mode 100644
index dea227dc..00000000
--- a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0987-drm-amd-display-Fix-two-MST-not-light-up-regressions.patch
+++ /dev/null
@@ -1,81 +0,0 @@
-From e0dc0c4ec53de6cfcad4425008e4b320039fd39e Mon Sep 17 00:00:00 2001
-From: Jerry Zuo <Jerry.Zuo@amd.com>
-Date: Thu, 17 Aug 2017 16:05:37 -0400
-Subject: [PATCH 0987/4131] drm/amd/display: Fix two MST not light up
- regressions
-
-1. Change 100104: Move verify link cap after read edid causes MST
- link_cap struct not being set. It leads to zero denominator
- pbn_per_slot value, leading to the crash at
- dal_fixed31_32_div(). Skip MST link training for now and will
- need to add MST specific link traning routine later.
-
-2. Change 98822: Adding edp supports changes link setting
- condition from max_link to verified_link. It leads to MST is
- getting wrong link settings.
- e.g. LINK_SPREAD_05_DOWNSPREAD_30KHZ not set in MST case
-
-Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com>
-Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
-Acked-by: Harry Wentland <Harry.Wentland@amd.com>
----
- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 16 +++++++++-------
- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 8 ++++++++
- 2 files changed, 17 insertions(+), 7 deletions(-)
-
-diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
-index cab54af..ee9b984 100644
---- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
-+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
-@@ -607,6 +607,12 @@ bool dc_link_detect(struct dc_link *link, bool boot)
- if (link->type == dc_connection_mst_branch) {
- LINK_INFO("link=%d, mst branch is now Connected\n",
- link->link_index);
-+ /* Need to setup mst link_cap struct here
-+ * otherwise dc_link_detect() will leave mst link_cap
-+ * empty which leads to allocate_mst_payload() has "0"
-+ * pbn_per_slot value leading to exception on dal_fixed31_32_div()
-+ */
-+ link->verified_link_cap = link->reported_link_cap;
- return false;
- }
-
-@@ -672,13 +678,9 @@ bool dc_link_detect(struct dc_link *link, bool boot)
- * TODO debug why Dell 2413 doesn't like
- * two link trainings
- */
-- if (is_mst_supported(link)) {
-- link->verified_link_cap =
-- link->reported_link_cap;
-- } else {
-- dp_hbr_verify_link_cap(link,
-- &link->reported_link_cap);
-- }
-+
-+ /* deal with non-mst cases */
-+ dp_hbr_verify_link_cap(link, &link->reported_link_cap);
- }
-
- /* HDMI-DVI Dongle */
-diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
-index d621237..e35bdce 100644
---- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
-+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
-@@ -1459,6 +1459,14 @@ void decide_link_settings(struct dc_stream_state *stream,
- return;
- }
-
-+ /* MST doesn't perform link training for now
-+ * TODO: add MST specific link training routine
-+ */
-+ if (is_mst_supported(link)) {
-+ *link_setting = link->verified_link_cap;
-+ return;
-+ }
-+
- /* search for the minimum link setting that:
- * 1. is supported according to the link training result
- * 2. could support the b/w requested by the timing
---
-2.7.4
-