This adds device unplug support to drm_fb_helper, drm_fb_cma_helper (fbdev) and tinydrm.
My motivation for doing this is to make tinydrm useable with USB devices. This discussion gave insight into the problem: [PATCH v5 2/6] drm/bridge: Add a devm_ allocator for panel bridge. https://lists.freedesktop.org/archives/dri-devel/2017-August/149376.html
Noralf.
Noralf Trønnes (6): drm/fb-helper: Avoid NULL ptr dereference in fb_set_suspend() drm/fb-helper: Support device unplug drm/fb-cma-helper: Support device unplug drm/tinydrm: Embed drm_device in tinydrm_device drm/tinydrm/mi0283qt: Let the display pipe handle power drm/tinydrm: Support device unplug
drivers/gpu/drm/drm_fb_cma_helper.c | 139 +++++++++---------- drivers/gpu/drm/drm_fb_helper.c | 207 +++++++++++++++++++++++++++- drivers/gpu/drm/tinydrm/core/tinydrm-core.c | 109 ++++++++++----- drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 2 +- drivers/gpu/drm/tinydrm/mi0283qt.c | 77 +++-------- drivers/gpu/drm/tinydrm/mipi-dbi.c | 27 ++-- drivers/gpu/drm/tinydrm/repaper.c | 19 ++- drivers/gpu/drm/tinydrm/st7586.c | 25 ++-- include/drm/drm_fb_cma_helper.h | 1 + include/drm/drm_fb_helper.h | 35 +++++ include/drm/tinydrm/tinydrm.h | 14 +- 11 files changed, 460 insertions(+), 195 deletions(-)