[PATCH] drm/i915/gvt: make dpcd_fix_data supports DP1.2

Pei Zhang pei.zhang at intel.com
Tue Mar 14 15:22:22 UTC 2017


GVT-g will emulate a fixed DPCD data to VM for DP/eDP panel. Update
this data to latest DP1.2 with the maximum lane bandwidth of 5.4G/s
to support 4K resolution in VM.

Signed-off-by: Pei Zhang <pei.zhang at intel.com>
---
 drivers/gpu/drm/i915/gvt/display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index 5419ae6..49e6577 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -162,7 +162,7 @@ static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = {
 #define DPCD_HEADER_SIZE        0xb
 
 static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = {
-	0x11, 0x0a, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+	0x12, 0x014, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
 };
 
 static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
-- 
2.7.4



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