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Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1003-drm-amd-display-Fix-return-value-from-rx-irq-handler.patch')
-rw-r--r--meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1003-drm-amd-display-Fix-return-value-from-rx-irq-handler.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1003-drm-amd-display-Fix-return-value-from-rx-irq-handler.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1003-drm-amd-display-Fix-return-value-from-rx-irq-handler.patch
new file mode 100644
index 00000000..13ee9105
--- /dev/null
+++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/1003-drm-amd-display-Fix-return-value-from-rx-irq-handler.patch
@@ -0,0 +1,36 @@
+From 6995adc6b026a1f5b3cfbf35ea5ab269af5e21d0 Mon Sep 17 00:00:00 2001
+From: Wenjing Liu <Wenjing.Liu@amd.com>
+Date: Tue, 22 Aug 2017 15:49:57 -0400
+Subject: [PATCH 1003/4131] drm/amd/display: Fix return value from rx irq
+ handler on up request
+
+Change-Id: Ifa864d3788ae34a6dfa315bd4148f5d5c4ae0c5a
+Signed-off-by: Wenjing Liu <Wenjing.Liu@amd.com>
+Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+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 e35bdce..e19447d 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
+@@ -1964,11 +1964,11 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd
+ * so do not handle as a normal sink status change interrupt.
+ */
+
++ if (hpd_irq_dpcd_data.bytes.device_service_irq.bits.UP_REQ_MSG_RDY)
++ return true;
++
+ /* check if we have MST msg and return since we poll for it */
+- if (hpd_irq_dpcd_data.bytes.device_service_irq.
+- bits.DOWN_REP_MSG_RDY ||
+- hpd_irq_dpcd_data.bytes.device_service_irq.
+- bits.UP_REQ_MSG_RDY)
++ if (hpd_irq_dpcd_data.bytes.device_service_irq.bits.DOWN_REP_MSG_RDY)
+ return false;
+
+ /* For now we only handle 'Downstream port status' case.
+--
+2.7.4
+