[PATCH v4 0/2] drm/panel: Add device link in drm_panel_attach()

[Jyri Sarha]

I guess the first patch should be mergable. With the second, maybe it
is better to wait until we have a full solution including the bridges
too. What should I do to get the first patch merged?

The third version of these patches can be found here:
https://lists.freedesktop.org/archives/dri-devel/2018-April/174221.html

Changes since v3:
- "drm/panel: Remove drm_panel_detach() calls from all panel drives"
  - Update kerneldoc for drm_panel_detach() and drm_panel_attach()
    according to Daniel Vetter's suugestion and add his reviewed-by.
- "drm/panel: Add device_link from panel device to drm device"
  - none

The first patch could be squashed to second, but kept is separate
since I think it is correct even without the second patch.

With these patches unbinding a panel driver in use does not cause
nasty backtraces and corrupted drm core structures, but instead it
cleanly unbinds the drm master device at the same time.

The only down side (currently[1]) is that the drm device does not reprobe
if the panel driver is bound again, but everything should work if the
drm master driver is bound manually.

Best regards,
Jyri

Jyri Sarha (2):
  drm/panel: Remove drm_panel_detach() calls from all panel drives
  drm/panel: Add device_link from panel device to drm device

 drivers/gpu/drm/drm_panel.c                          | 16 ++++++++++++++++
 drivers/gpu/drm/panel/panel-innolux-p079zca.c        |  1 -
 drivers/gpu/drm/panel/panel-jdi-lt070me05000.c       |  1 -
 drivers/gpu/drm/panel/panel-lvds.c                   |  1 -
 drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c |  1 -
 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c          |  1 -
 drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c      |  1 -
 drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c      |  1 -
 drivers/gpu/drm/panel/panel-simple.c                 |  1 -
 drivers/gpu/drm/panel/panel-sitronix-st7789v.c       |  1 -
 include/drm/drm_panel.h                              |  1 +
 11 files changed, 17 insertions(+), 9 deletions(-)

-- 
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki