linux-toradex.git/drivers/gpu/drm/rcar-du/rcar_du_encoder.h, branch v4.14-rc3

drm: rcar-du: Hardcode encoders types to DRM_MODE_ENCODER_NONE

2017-04-04T14:04:04+00:00

Unlike the connector type, the encoder type is unused by userspace. As
it is equally unused in the driver, except in a single location where
the connector type can be used instead, hardcode it to
DRM_MODE_ENCODER_NONE. This allow removing all code that tries to
determine (unsuccessfully in case a bridge is used) the encoder type.

Signed-off-by: Laurent Pinchart

drm: rcar-du: Replace manual bridge implementation with DRM bridge

2017-04-04T14:04:02+00:00

The rcar-du driver contains a manual implementation of HDMI and VGA
bridges. Use DRM bridges to replace it.

Signed-off-by: Laurent Pinchart

drm: rcar-du: Use the DRM panel API

2017-04-04T14:03:56+00:00

Instead of parsing the panel device tree node manually, use the panel
API to delegate panel handling to a panel driver.

Signed-off-by: Laurent Pinchart

drm: Don't include in

2016-12-18T10:59:29+00:00

 used to define most of the in-kernel KMS API. It has
now been split into separate files for each object type, but still
includes most other KMS headers to avoid breaking driver compilation.

As a step towards fixing that problem, remove the inclusion of
 from  and include it instead where
appropriate. Also remove the forward declarations of the drm_encoder and
drm_encoder_helper_funcs structures from  as they're not
needed in the header.

 now has to include  and contain a
forward declaration of struct drm_encoder in order to allow including it
as the first header in a compilation unit.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Daniel Vetter 
Reviewed-by: Sinclair Yeh  # For vmwgfx
Reviewed-by: Alex Deucher 
Signed-off-by: Archit Taneja 
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com

drm: rcar-du: Remove i2c slave encoder interface for hdmi encoder

2016-07-18T03:28:45+00:00

The hdmi output in rcar-du uses the i2c slave encoder interface to link
to the adv7511 encoder chip. The kms driver creates encoder and connector
entities that internally uses the drm_encoder_slave_funcs ops provided by
the slave encoder driver.

Change the driver such that it expects a bridge entity instead of a slave
encoder. The hdmi connector code isn't needed anymore as we expect the
adv7511 bridge driver to create/manage the connector.

Note that the kms driver still expects a connector node for hdmi to be
present in DT. This node has no connection to the connector created
by the bridge driver.

Tested-by: Laurent Pinchart 
Signed-off-by: Archit Taneja

drm: rcar-du: Rely on the default ->best_encoder() behavior

2016-06-10T15:24:26+00:00

All outputs have a 1:1 relationship between connectors and encoders,
and the driver is relying on the atomic helpers: we can drop the custom
->best_encoder() implementations and let the core call
drm_atomic_helper_best_encoder() for us.

Signed-off-by: Boris Brezillon 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-10-git-send-email-boris.brezillon@free-electrons.com

drm: rcar-du: Add HDMI encoder and connector support

2014-11-26T18:09:38+00:00

SoCs that integrate the DU have no internal HDMI encoder, support
external encoders only.

Signed-off-by: Laurent Pinchart

drm: rcar-du: Replace drm_encoder with drm_slave_encoder

2014-11-26T18:09:38+00:00

DRM slave encoders require their associated struct drm_encoder instance
to be embedded in a struct drm_slave_encoder. This makes processing
encoders regardless of their types needlessly and painfully complex in
drivers that use a mix of slave encoders and custom encoders. Such a
driver will need to either create drm_slave_encoder instances that fake
their embedded encoder instance, or to turn all drm_encoder instances
into drm_slave_encoder instances.

Between the two evils, one must choose the lesser. Use drm_slave_encoder
everywhere.

Signed-off-by: Laurent Pinchart

drm: rcar-du: Replace direct DRM encoder access with cast macro

2014-11-26T18:09:37+00:00

Add a new macro to downcast an rcar_du_encoder pointer to a drm_encoder
pointer and use it. This prepares for the replacement of the
rcar_drm_encoder encoder field with a drm_slave_encoder.

Signed-off-by: Laurent Pinchart

drm: rcar-du: Pass the encoder DT node to rcar_du_encoder_init()

2014-11-26T18:09:37+00:00

The encoder DT node will be needed to register an external HDMI encoder.
Pass it to the rcar_du_encoder_init() function to prepare for HDMI
support.

Signed-off-by: Laurent Pinchart