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-rw-r--r--common/recipes-kernel/linux/files/0808-drm-amd-dal-Only-run-detection-on-shortpulse-when-de.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0808-drm-amd-dal-Only-run-detection-on-shortpulse-when-de.patch b/common/recipes-kernel/linux/files/0808-drm-amd-dal-Only-run-detection-on-shortpulse-when-de.patch
new file mode 100644
index 00000000..9e87e5f8
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0808-drm-amd-dal-Only-run-detection-on-shortpulse-when-de.patch
@@ -0,0 +1,30 @@
+From 6deef291de42d06bd405bac162ea85342251c970 Mon Sep 17 00:00:00 2001
+From: Jun Lei <Jun.Lei@amd.com>
+Date: Thu, 21 Jan 2016 14:08:25 -0500
+Subject: [PATCH 0808/1110] drm/amd/dal: Only run detection on shortpulse when
+ dealing with active dongle
+
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+---
+ drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c | 5 +++--
+ 1 file changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
+index b8f7423..ed2add8 100644
+--- a/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
++++ b/drivers/gpu/drm/amd/dal/dc/core/dc_link_dp.c
+@@ -1527,8 +1527,9 @@ bool dc_link_handle_hpd_rx_irq(const struct dc_link *dc_link)
+ status = false;
+ }
+
+- if (hpd_irq_dpcd_data.bytes.sink_cnt.bits.SINK_COUNT
+- != link->dpcd_sink_count)
++ if (link->public.type == dc_connection_active_dongle &&
++ hpd_irq_dpcd_data.bytes.sink_cnt.bits.SINK_COUNT
++ != link->dpcd_sink_count)
+ status = true;
+
+ /* reasons for HPD RX:
+--
+2.7.4
+