Commit Graph

5 Commits

Author SHA1 Message Date
Thierry Reding
3c523d7d38 drm/dsi: Use peripheral's channel for DCS commands
When executing DCS commands, use the channel associated with the DSI
peripheral rather than one explicitly specified in the function call.
Devices shouldn't be able to step on each others' toes like this.

Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-22 09:06:32 +02:00
Thierry Reding
371c359f83 drm/dsi: Make mipi_dsi_dcs_write() return ssize_t
This function returns the value of the struct mipi_dsi_host_ops'
.transfer() so make sure the return types are consistent.

Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-07-22 09:06:16 +02:00
Thierry Reding
d16218030f drm/dsi: Support device shutdown
Hook up the MIPI DSI bus's .shutdown() function to allow drivers to
implement code that should be run when a device is shut down.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-06-05 16:42:19 +02:00
Andrzej Hajda
e49640da76 drm/mipi_dsi: create dsi devices only for nodes with reg property
MIPI DSI host node can contain child nodes which are not DSI devices.
Checking for existence of reg property can be used to distinguish such nodes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2014-04-04 21:24:47 +09:00
Andrzej Hajda
068a002339 drm: Add MIPI DSI bus support
MIPI DSI bus allows to model DSI hosts and DSI peripherals using the
Linux driver model. DSI hosts are registered by the DSI host drivers.
During registration DSI peripherals will be created from the children
of the DSI host's device tree node. Support for registration from
board-setup code will be added later when needed.

DSI hosts expose operations which can be used by DSI peripheral drivers
to access associated devices.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2013-12-17 18:09:43 +01:00