linux.git/drivers/gpu/drm/bridge/synopsys, branch v5.7

Merge v5.6 into drm-next

2020-03-31T05:15:47+00:00

msm needed rc6, so I just went and merged release
(msm has been in drm-next outside of this tree)

Signed-off-by: Dave Airlie

drm/bridge: synopsys: dw-hdmi: allow ycbcr420 modes for >= 0x200a

2020-03-10T09:51:24+00:00

Now the DW-HDMI Controller supports the HDMI2.0 modes, enable support
for these modes in the connector if the platform supports them.
We limit these modes to DW-HDMI IP version >= 0x200a which
are designed to support HDMI2.0 display modes.

Signed-off-by: Neil Armstrong 
Reviewed-by: Andrzej Hajda 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-6-narmstrong@baylibre.com

drm/bridge: synopsys: dw-hdmi: add bus format negociation

2020-03-10T09:51:24+00:00

Add the atomic_get_output_bus_fmts, atomic_get_input_bus_fmts to negociate
the possible output and input formats for the current mode and monitor,
and use the negotiated formats in a basic atomic_check callback.

Signed-off-by: Neil Armstrong 
Reviewed-by: Boris Brezillon 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-5-narmstrong@baylibre.com

drm/bridge: dw-hdmi: Plug atomic state hooks to the default implementation

2020-03-10T09:51:24+00:00

Add atomic_duplicate_state/atomic_destroy_state/atomic_reset bridge
funcs to allow setup of atomic bridge state.

Signed-off-by: Neil Armstrong 
Reviewed-by: Boris Brezillon 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-4-narmstrong@baylibre.com

drm/bridge: dw-hdmi: add max bpc connector property

2020-03-10T09:51:24+00:00

Add the max_bpc property to the dw-hdmi connector to prepare support
for 10, 12 & 16bit output support.

Signed-off-by: Jonas Karlman 
Signed-off-by: Neil Armstrong 
Reviewed-by: Laurent Pinchart 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-3-narmstrong@baylibre.com

drm/bridge: dw-hdmi: set mtmdsclock for deep color

2020-03-10T09:51:24+00:00

Configure the correct mtmdsclock for deep colors to prepare support
for 10, 12 & 16bit output.

Signed-off-by: Jonas Karlman 
Signed-off-by: Neil Armstrong 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-2-narmstrong@baylibre.com

drm/bridge: dw-hdmi: fix AVI frame colorimetry

2020-03-05T16:56:48+00:00

CTA-861-F explicitly states that for RGB colorspace colorimetry should
be set to "none". Fix that.

Acked-by: Laurent Pinchart 
Fixes: def23aa7e982 ("drm: bridge: dw-hdmi: Switch to V4L bus format and encodings")
Signed-off-by: Jernej Skrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304232512.51616-2-jernej.skrabec@siol.net

drm/bridge: Extend bridge API to disable connector creation

2020-02-26T11:31:23+00:00

Most bridge drivers create a DRM connector to model the connector at the
output of the bridge. This model is historical and has worked pretty
well so far, but causes several issues:

- It prevents supporting more complex display pipelines where DRM
connector operations are split over multiple components. For instance a
pipeline with a bridge connected to the DDC signals to read EDID data,
and another one connected to the HPD signal to detect connection and
disconnection, will not be possible to support through this model.

- It requires every bridge driver to implement similar connector
handling code, resulting in code duplication.

- It assumes that a bridge will either be wired to a connector or to
another bridge, but doesn't support bridges that can be used in both
positions very well (although there is some ad-hoc support for this in
the analogix_dp bridge driver).

In order to solve these issues, ownership of the connector should be
moved to the display controller driver (where it can be implemented
using helpers provided by the core).

Extend the bridge API to allow disabling connector creation in bridge
drivers as a first step towards the new model. The new flags argument to
the bridge .attach() operation allows instructing the bridge driver to
skip creating a connector. Unconditionally set the new flags argument to
0 for now to keep the existing behaviour, and modify all existing bridge
drivers to return an error when connector creation is not requested as
they don't support this feature yet.

The change is based on the following semantic patch, with manual review
and edits.

@ rule1 @
identifier funcs;
identifier fn;
@@
 struct drm_bridge_funcs funcs = {
 	...,
 	.attach = fn
 };

@ depends on rule1 @
identifier rule1.fn;
identifier bridge;
statement S, S1;
@@
 int fn(
 	struct drm_bridge *bridge
+	, enum drm_bridge_attach_flags flags
 )
 {
 	... when != S
+	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) {
+		DRM_ERROR("Fix bridge driver to make connector optional!");
+		return -EINVAL;
+	}
+
 	S1
 	...
 }

@ depends on rule1 @
identifier rule1.fn;
identifier bridge, flags;
expression E1, E2, E3;
@@
 int fn(
 	struct drm_bridge *bridge,
 	enum drm_bridge_attach_flags flags
 ) {
 <...
 drm_bridge_attach(E1, E2, E3
+	, flags
 )
 ...>
 }

@@
expression E1, E2, E3;
@@
 drm_bridge_attach(E1, E2, E3
+	, 0
 )

Signed-off-by: Laurent Pinchart 
Reviewed-by: Boris Brezillon 
Acked-by: Sam Ravnborg 
Reviewed-by: Tomi Valkeinen 
Tested-by: Sebastian Reichel 
Reviewed-by: Sebastian Reichel 
Acked-by: Daniel Vetter 
Signed-off-by: Tomi Valkeinen 
Link: https://patchwork.freedesktop.org/patch/msgid/20200226112514.12455-10-laurent.pinchart@ideasonboard.com

drm/bridge/synopsys: dsi: missing post disable

2020-02-10T10:07:36+00:00

Sometime the post_disable function is missing (not registered).

Signed-off-by: Yannick Fertré 
Reviewed-by: Philippe Cornu 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/1579602296-7683-1-git-send-email-yannick.fertre@st.com

drm: bridge: dw-hdmi: constify copied structure

2020-01-06T14:39:29+00:00

The dw_hdmi_hw structure is only copied into another structure,
so make it const.

The opportunity for this change was found using Coccinelle.

Fixes: 7ed6c665e19d ("drm: bridge/dw_hdmi-ahb-audio: add audio driver")
Signed-off-by: Julia Lawall 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/1577864614-5543-16-git-send-email-Julia.Lawall@inria.fr