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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0262-drm-amd-display-After-program-backend-also-program-f.patch63
1 files changed, 63 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0262-drm-amd-display-After-program-backend-also-program-f.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0262-drm-amd-display-After-program-backend-also-program-f.patch
new file mode 100644
index 00000000..2ca61a4a
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0262-drm-amd-display-After-program-backend-also-program-f.patch
@@ -0,0 +1,63 @@
+From 891869cdac4d1891ae496cbb4ef81437e741ea8a Mon Sep 17 00:00:00 2001
+From: Yongqiang Sun <yongqiang.sun@amd.com>
+Date: Fri, 3 Mar 2017 09:37:11 -0500
+Subject: [PATCH 0262/4131] drm/amd/display: After program backend, also
+ program front end regs.
+
+Issue:
+In case of two 4K@60 + one non-4k monitor, when unplug non-4k monitor,
+the remain two 4k monitor don't work properly.
+Reason:
+In that case, two 4k use two pipes and no split, when unplug happens,
+those two monitor will use 4 pipes and split, but on that time, frontend
+is not programed properly.
+Solution:
+After programed backend, front end should be programmed as per new pipe
+setting.
+
+Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/core/dc.c | 16 ++++------------
+ 1 file changed, 4 insertions(+), 12 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
+index f1ec273..a39b998 100644
+--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
++++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
+@@ -806,7 +806,7 @@ bool dc_commit_streams(
+ enum dc_status result = DC_ERROR_UNEXPECTED;
+ struct validate_context *context;
+ struct dc_validation_set set[MAX_STREAMS] = { {0, {0} } };
+- int i, j, k;
++ int i, j;
+
+ if (false == streams_changed(core_dc, streams, stream_count))
+ return DC_OK;
+@@ -862,18 +862,10 @@ bool dc_commit_streams(
+ const struct core_sink *sink = context->streams[i]->sink;
+
+ for (j = 0; j < context->stream_status[i].surface_count; j++) {
+- const struct dc_surface *dc_surface =
+- context->stream_status[i].surfaces[j];
+-
+- for (k = 0; k < context->res_ctx.pool->pipe_count; k++) {
+- struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[k];
++ struct core_surface *surface =
++ DC_SURFACE_TO_CORE(context->stream_status[i].surfaces[j]);
+
+- if (dc_surface != &pipe->surface->public
+- || !dc_surface->visible)
+- continue;
+-
+- pipe->tg->funcs->set_blank(pipe->tg, false);
+- }
++ core_dc->hwss.apply_ctx_for_surface(core_dc, surface, context);
+ }
+
+ CONN_MSG_MODE(sink->link, "{%dx%d, %dx%d@%dKhz}",
+--
+2.7.4
+