[PATCH/V3] drm/i915/gvt: make dpcd_fix_data supports DP1.2
Pei Zhang
pei.zhang at intel.com
Mon Mar 20 15:54:39 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.
V3: modify patch comment
V2: add inline comment to describe the dpcd_fix_data.
Signed-off-by: Pei Zhang <pei.zhang at intel.com>
Reviewd-by: Zhenyu Wang <zhenyuw at linux.intel.com>
---
drivers/gpu/drm/i915/gvt/display.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index 5419ae6..c60c370 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -161,8 +161,9 @@ static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = {
#define DPCD_HEADER_SIZE 0xb
+/* let the virtual display supports DP1.2 */
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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