diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0342-drm-amd-display-Fix-for-tile-MST.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0342-drm-amd-display-Fix-for-tile-MST.patch | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0342-drm-amd-display-Fix-for-tile-MST.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0342-drm-amd-display-Fix-for-tile-MST.patch deleted file mode 100644 index 36eafc97..00000000 --- a/common/recipes-kernel/linux/linux-yocto-4.14.71/0342-drm-amd-display-Fix-for-tile-MST.patch +++ /dev/null @@ -1,84 +0,0 @@ -From 51cc8757c65046285573a5ebdac33cac054f0e34 Mon Sep 17 00:00:00 2001 -From: Ding Wang <Ding.Wang@amd.com> -Date: Mon, 10 Apr 2017 14:02:23 -0400 -Subject: [PATCH 0342/4131] drm/amd/display: Fix for tile MST - -- Set stream signal type to be SST when setting non-tile timing on MST - tiled display. - - Disable MST on sink after disabling MST link. - - Enable MST on sink before enabling MST link. - -Signed-off-by: Ding Wang <Ding.Wang@amd.com> -Acked-by: Harry Wentland <Harry.Wentland@amd.com> -Reviewed-by: Jun Lei <Jun.Lei@amd.com> -Signed-off-by: Alex Deucher <alexander.deucher@amd.com> ---- - drivers/gpu/drm/amd/display/dc/core/dc_link.c | 3 +++ - drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 13 +++++++++++++ - drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 3 +++ - drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h | 2 ++ - 4 files changed, 21 insertions(+) - -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 b878fb9..426f7f8 100644 ---- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c -+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c -@@ -1250,6 +1250,9 @@ static enum dc_status enable_link_dp_mst(struct pipe_ctx *pipe_ctx) - if (link->public.cur_link_settings.lane_count != LANE_COUNT_UNKNOWN) - return DC_OK; - -+ /* set the sink to MST mode before enabling the link */ -+ dp_enable_mst_on_sink(link, true); -+ - return enable_link_dp(pipe_ctx); - } - -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 9f12ba8..913b01c 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 -@@ -2453,3 +2453,16 @@ bool dc_link_dp_set_test_pattern( - - return true; - } -+ -+void dp_enable_mst_on_sink(struct core_link *link, bool enable) -+{ -+ unsigned char mstmCntl; -+ -+ core_link_read_dpcd(link, DP_MSTM_CTRL, &mstmCntl, 1); -+ if (enable) -+ mstmCntl |= DP_MST_EN; -+ else -+ mstmCntl &= (~DP_MST_EN); -+ -+ core_link_write_dpcd(link, DP_MSTM_CTRL, &mstmCntl, 1); -+} -diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c -index 3b81459..316df15 100644 ---- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c -+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c -@@ -129,6 +129,9 @@ void dp_disable_link_phy_mst(struct core_link *link, enum signal_type signal) - return; - - dp_disable_link_phy(link, signal); -+ -+ /* set the sink to SST mode after disabling the link */ -+ dp_enable_mst_on_sink(link, false); - } - - bool dp_set_hw_training_pattern( -diff --git a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h -index b0cf8e0..92c56e6 100644 ---- a/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h -+++ b/drivers/gpu/drm/amd/display/dc/inc/dc_link_dp.h -@@ -57,4 +57,6 @@ void detect_dp_sink_caps(struct core_link *link); - - bool is_dp_active_dongle(const struct core_link *link); - -+void dp_enable_mst_on_sink(struct core_link *link, bool enable); -+ - #endif /* __DC_LINK_DP_H__ */ --- -2.7.4 - |