linux/drivers/gpu/drm
Ajay Kumar 3d3f8b1f8b drm/bridge: make bridge registration independent of drm flow
Currently, third party bridge drivers(ptn3460) are dependent
on the corresponding encoder driver init, since bridge driver
needs a drm_device pointer to finish drm initializations.
The encoder driver passes the drm_device pointer to the
bridge driver. Because of this dependency, third party drivers
like ptn3460 doesn't adhere to the driver model.

In this patch, we reframe the bridge registration framework
so that bridge initialization is split into 2 steps, and
bridge registration happens independent of drm flow:
--Step 1: gather all the bridge settings independent of drm and
	  add the bridge onto a global list of bridges.
--Step 2: when the encoder driver is probed, call drm_bridge_attach
	  for the corresponding bridge so that the bridge receives
	  drm_device pointer and continues with connector and other
	  drm initializations.

The old set of bridge helpers are removed, and a set of new helpers
are added to accomplish the 2 step initialization.

The bridge devices register themselves onto global list of bridges
when they get probed by calling "drm_bridge_add".

The parent encoder driver waits till the bridge is available
in the lookup table(by calling "of_drm_find_bridge") and then
continues with its initialization.

The encoder driver should also call "drm_bridge_attach" to pass
on the drm_device to the bridge object.

drm_bridge_attach inturn calls "bridge->funcs->attach" so that
bridge can continue with drm related initializations.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Tested-by: Rahul Sharma <rahul.sharma@samsung.com>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Tested-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-01-28 08:45:40 +01:00
..
amd drm/amdkfd: change amdkfd version to 0.7.1 2015-01-22 17:53:03 +02:00
armada Merge tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-09 09:13:41 +10:00
ast drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
atmel-hlcdc drm: add Atmel HLCDC Display Controller support 2015-01-21 09:46:02 +01:00
bochs drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
bridge drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00
cirrus drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
exynos Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next 2015-01-27 09:38:29 +10:00
gma500 drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
i2c drm: adv7511: Remove interlaced mode check 2014-12-23 12:01:47 +02:00
i810
i915 Merge tag 'drm-intel-next-2015-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-27 09:01:09 +10:00
imx imx-drm: core: handling of DI clock flags to ipu_crtc_mode_set() 2015-01-07 21:32:07 +01:00
mga
mgag200 drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
msm drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00
nouveau Merge tag 'topic/core-stuff-2015-01-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-27 08:54:11 +10:00
omapdrm drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
panel drm/panel: simple: Add AVIC TM070DDH03 panel support 2015-01-28 08:45:39 +01:00
qxl drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
r128 drm: remove unnecessary sizeof(u8) 2014-11-20 11:30:37 +10:00
radeon Merge branch 'drm-next-3.20' of git://people.freedesktop.org/~agd5f/linux into drm-next 2015-01-27 09:39:58 +10:00
rcar-du Merge branch 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev into drm-next 2015-01-21 10:16:24 +10:00
rockchip Merge branch 'drm-next' of https://github.com/markyzq/kernel-drm-rockchip into drm-next 2015-01-27 10:05:44 +10:00
savage
shmobile Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
sis
sti drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00
tdfx
tegra drm/tegra: Use correct relocation target offsets 2015-01-27 10:14:59 +01:00
tilcdc Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
ttm drm/ttm: optionally move duplicates to a separate list 2014-12-03 18:26:52 -05:00
udl drm/fb-helper: Propagate errors from initial config failure 2015-01-21 14:57:03 +01:00
via
vmwgfx drm/ttm: optionally move duplicates to a separate list 2014-12-03 18:26:52 -05:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Merge tag 'topic/atomic-core-2015-01-27' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-28 09:34:27 +10:00
drm_atomic.c Merge tag 'topic/atomic-core-2015-01-27' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-28 09:34:27 +10:00
drm_auth.c
drm_bridge.c drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00
drm_bufs.c
drm_cache.c drm/cache: Use wbinvd helpers 2014-12-16 08:56:55 +01:00
drm_context.c
drm_crtc_helper.c drm/atomic: Introduce state->obj backpointers 2014-12-17 20:23:23 +01:00
drm_crtc_internal.h drm/atomic: Hide drm.ko internal interfaces 2015-01-05 13:55:30 +01:00
drm_crtc.c drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c drm/dp: retry AUX transactions 32 times (v1.1) 2014-12-09 09:56:44 +10:00
drm_dp_mst_topology.c drm/tile: expose the tile property to userspace (v3) 2014-12-09 09:56:48 +10:00
drm_drv.c drm: add atomic properties 2015-01-05 13:54:38 +01:00
drm_edid_load.c drm/edid: Deletion of an unnecessary check before the function call "release_firmware" 2014-11-21 12:16:27 +10:00
drm_edid.c Merge tag 'topic/core-stuff-2014-12-10' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-12-11 10:12:57 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c Merge tag 'topic/core-stuff-2015-01-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-27 08:54:11 +10:00
drm_flip_work.c drm: flip-work: change drm_flip_work_init prototype 2014-11-15 09:29:14 +10:00
drm_fops.c drm: Make drm_read() more robust against multithreaded races 2015-01-21 14:57:03 +01:00
drm_gem_cma_helper.c
drm_gem.c drm: Sanitize DRM_IOCTL_MODE_CREATE_DUMB input 2014-11-15 09:50:21 +10:00
drm_global.c
drm_hashtab.c
drm_info.c drm/info: Remove unused code 2014-12-16 18:44:34 +01:00
drm_internal.h drm/info: Remove unused code 2014-12-16 18:44:34 +01:00
drm_ioc32.c
drm_ioctl.c drm: Ensure universal_planes is set for atomic 2015-01-05 13:55:30 +01:00
drm_irq.c Merge tag 'topic/core-stuff-2014-12-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-09 09:13:41 +10:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm/mipi-dsi: Avoid potential NULL pointer dereference 2015-01-28 08:45:37 +01:00
drm_mm.c
drm_modes.c imx-drm mode fixup support, imx-hdmi bridge conversion and imx-drm cleanup 2015-01-21 10:17:16 +10:00
drm_modeset_lock.c
drm_of.c
drm_panel.c
drm_pci.c
drm_plane_helper.c Merge tag 'topic/atomic-core-2015-01-27' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-01-28 09:34:27 +10:00
drm_platform.c
drm_prime.c drm: Miscellaneous fixes for v3.19-rc1 2014-11-15 09:37:20 +10:00
drm_probe_helper.c drm/probe-helper: clamp unknown connector status in the poll work 2015-01-22 06:11:39 +01:00
drm_rect.c
drm_scatter.c
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c
Kconfig drm/radeon: make MMU_NOTIFIER optional 2015-01-22 10:42:21 -05:00
Makefile drm/bridge: make bridge registration independent of drm flow 2015-01-28 08:45:40 +01:00