Re: [Intel-gfx] [PATCH 02/11] drm: add DP MST encoder type

[Todd Previte <tprevite@xxxxxxxxx>]

Dave Airlie

Tuesday, May 20, 2014 7:54 PM

From: Dave Airlie <airlied@xxxxxxxxxx>

This adds an encoder type for DP MST encoders.

Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
---
drivers/gpu/drm/drm_crtc.c | 1 +
include/uapi/drm/drm_mode.h | 1 +
2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index a3fe324..f1753e6 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -227,6 +227,7 @@ static const struct drm_prop_enum_list drm_encoder_enum_list[] =
{ DRM_MODE_ENCODER_TVDAC, "TV" },
{ DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
{ DRM_MODE_ENCODER_DSI, "DSI" },
+ { DRM_MODE_ENCODER_DPMST, "DP MST" },
};

static const struct drm_prop_enum_list drm_subpixel_enum_list[] =
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index f104c26..719add4 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -181,6 +181,7 @@ struct drm_mode_get_plane_res {
#define DRM_MODE_ENCODER_TVDAC 4
#define DRM_MODE_ENCODER_VIRTUAL 5
#define DRM_MODE_ENCODER_DSI 6
+#define DRM_MODE_ENCODER_DPMST 7

struct drm_mode_get_encoder {
__u32 encoder_id;

Reviewed-by: Todd Previte <tprevite@xxxxxxxxx>

Dave Airlie

Tuesday, May 20, 2014 7:54 PM

Hey,

So this set is pretty close to what I think we should be merging initially,

Since the last set, it makes fbcon and suspend/resume work a lot better,

I've also fixed a couple of bugs in -intel that make things work a lot
better.

I've bashed on this a bit using kms-flip from intel-gpu-tools, hacked
to add 3 monitor support.

It still generates a fair few i915 state checker backtraces, and some
of them are fairly hard to work out, it might be we should just tone
down the state checker for encoders/connectors with no actual hw backing
them.

Dave.

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