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Now that omapfb has its own copy of omapdss and display drivers, we can
move omapdss and display drivers which omapdrm uses to omapdrm's
directory.
We also need to change the main drm Makefile so that omapdrm directory
is always entered, because omapdss has a file that can't be built as a
module.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
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All the output drivers check for 'out' being NULL, but it can never be
NULL. Remove the check.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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omapdss kernel module contains drivers for multiple devices, one for
each DSS submodule. The probing we have at the moment is a mess, and
doesn't give us proper deferred probing nor ensure that all the devices
are probed before omapfb/omapdrm start using omapdss.
This patch solves the mess by using the component system for DSS
submodules.
The changes to all DSS submodules (dispc, dpi, dsi, hdmi4/5, rfbi, sdi,
venc) are the same: probe & remove functions are changed to bind &
unbind, and new probe & remove functions are added which call
component_add/del.
The dss_core driver (dss.c) acts as a component master. Adding and
matching the components is simple: all dss device's child devices are
added as components.
However, we do have some dependencies between the drivers. The order in
which they should be probed is reflected by the list in core.c
(dss_output_drv_reg_funcs). The drivers are registered in that order,
which causes the components to be added in that order, which makes the
components to be bound in that order. This feels a bit fragile, and we
probably should improve the code to manage binds in random order.
However, for now, this works fine.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The following patches will add component handling to omapdss, improving
the handling of deferred probing. However, at the moment we're using
quite a lot of __inits and __exits in the driver, which prevent normal
dynamic probing and removal.
This patch removes most of the uses of __init and __exit, so that we can
register drivers after module init, and so that we can unregister
drivers even if the module is built-in.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next
Remove all .owner fields from platform drivers
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omapdss drivers cannot handle devices being unbound while the devices
are part of a connected display pipeline. Module refcounts are used to
prevent unloading the modules, but one can still manually unbind the
devices via sysfs, causing crash.
Set suppress_bind_attrs to disable the bind/unbind support via sysfs.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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