linux_dsm_epyc7002/drivers/gpu/drm
Russell King b872a8e16b drm: bridge/dw_hdmi: fix phy enable/disable handling
The dw_hdmi enable/disable handling is particularly weak in several
regards:
* The hotplug interrupt could call hdmi_poweron() or hdmi_poweroff()
  while DRM is setting a mode, which could race with a mode being set.
* Hotplug will always re-enable the phy whenever it detects an active
  hotplug signal, even if DRM has disabled the output.

Resolve all of these by introducing a mutex to prevent races, and a
state-tracking bool so we know whether DRM wishes the output to be
enabled.  We choose to use our own mutex rather than ->struct_mutex
so that we can still process interrupts in a timely fashion.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-08-18 11:33:58 +01:00
..
amd Merge tag 'drm-intel-next-2015-03-27-merge' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-04-01 08:21:46 +10:00
armada dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
ast
atmel-hlcdc drm: atmel-hlcdc: use appropriate enabled flag in suspend/resume 2015-03-16 16:10:42 +01:00
bochs drm/bochs: disable video before changing video mode 2015-04-01 08:28:15 +10:00
bridge drm: bridge/dw_hdmi: fix phy enable/disable handling 2015-08-18 11:33:58 +01:00
cirrus
exynos dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
gma500 drm/gma500: constify all struct drm_*_helper funcs pointers 2015-04-07 17:06:41 +02:00
i2c drm: adv7511: Refactor power management 2015-03-19 12:28:55 +02:00
i810
i915 Merge tag 'drm-intel-next-fixes-2015-04-25' of git://anongit.freedesktop.org/drm-intel into drm-fixes 2015-04-27 10:35:15 +10:00
imx drm: imx/dw_hdmi: move phy comments 2015-08-18 11:27:14 +01:00
mga
mgag200 drm/mgag200: constify all struct drm_*_helper funcs pointers 2015-04-07 17:06:41 +02:00
msm Merge Linus master into drm-next 2015-04-20 13:05:20 +10:00
nouveau Merge tag 'topic/drm-misc-2015-04-15' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-04-16 08:34:24 +10:00
omapdrm dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
panel drm/panel: Add support for Ampire AM-800480R3TMQW-A1H 800x480 7" panel 2015-04-02 19:04:15 +02:00
qxl drm/qxl: constify all struct drm_*_helper funcs pointers 2015-04-07 18:11:24 +02:00
r128
radeon Merge Linus master into drm-next 2015-04-20 13:05:20 +10:00
rcar-du drm: Use of-graph helpers to loop over endpoints 2015-04-13 17:28:16 +10:00
rockchip Merge branch 'drm-dwhdmi-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next 2015-04-16 08:33:30 +10:00
savage
shmobile
sis
sti drm: sti: convert driver to atomic modeset 2015-03-19 13:35:16 +01:00
tdfx
tegra dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
tilcdc
ttm dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
udl dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
vgem drm/vgem: implement virtual GEM 2015-04-02 09:21:48 +10:00
via
vmwgfx Merge tag 'topic/drm-misc-2015-03-31' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-04-01 08:23:25 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Merge tag 'topic/drm-misc-2015-04-15' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-04-16 08:34:24 +10:00
drm_atomic.c drm/atomic: Add for_each_{connector,crtc,plane}_in_state helper macros 2015-04-11 18:50:22 +02:00
drm_auth.c
drm_bridge.c drm: Silence sparse warnings 2015-03-13 17:37:35 +01:00
drm_bufs.c
drm_cache.c
drm_context.c
drm_crtc_helper.c drm/drm: constify all struct drm_*_helper funcs pointers 2015-04-07 18:11:25 +02:00
drm_crtc_internal.h
drm_crtc.c Merge Linus master into drm-next 2015-04-20 13:05:20 +10:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c drm/dp: Print the number of bytes processed for aux nacks 2015-03-23 16:22:29 +01:00
drm_dp_mst_topology.c Merge tag 'drm-intel-next-2015-03-13-merge' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-03-24 11:12:20 +10:00
drm_drv.c drm: %pF is only for function pointers 2015-03-13 10:17:38 +01:00
drm_edid_load.c drm/edid: set ELD for firmware and debugfs override EDIDs 2015-03-27 13:27:04 +02:00
drm_edid.c
drm_encoder_slave.c
drm_fb_cma_helper.c drm/cma: use correct fb width/height 2015-03-11 22:08:07 +01:00
drm_fb_helper.c drm/drm: constify all struct drm_*_helper funcs pointers 2015-04-07 18:11:25 +02:00
drm_flip_work.c
drm_fops.c
drm_gem_cma_helper.c
drm_gem.c
drm_global.c
drm_hashtab.c
drm_info.c drm: Silence sparse warnings 2015-03-13 17:37:35 +01:00
drm_internal.h
drm_ioc32.c drm: Silence sparse warnings 2015-03-13 17:37:35 +01:00
drm_ioctl.c drm: line wrap DRM_IOCTL_DEF* macros 2015-03-31 09:18:40 +02:00
drm_irq.c Merge tag 'drm-intel-next-2015-02-27' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-03-09 19:41:15 +10:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c [PATCH] drm/mm: Fix support 4 GiB and larger ranges 2015-03-16 06:28:50 +10:00
drm_modes.c drm: mode: Allow NULL modes for equality check 2015-03-23 16:22:30 +01:00
drm_modeset_lock.c
drm_of.c drm: use for_each_endpoint_of_node macro in drm_of_find_possible_crtcs 2015-04-08 11:14:25 +02:00
drm_panel.c
drm_pci.c drm: Silence sparse warnings 2015-03-13 17:37:35 +01:00
drm_plane_helper.c drm/drm: constify all struct drm_*_helper funcs pointers 2015-04-07 18:11:25 +02:00
drm_platform.c
drm_prime.c dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
drm_probe_helper.c Merge tag 'topic/drm-misc-2015-04-15' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-04-16 08:34:24 +10:00
drm_rect.c
drm_scatter.c
drm_sysfs.c drm: Lighten sysfs connector 'status' 2015-03-10 09:59:36 +01:00
drm_trace_points.c
drm_trace.h tracing/drm: Remove unused TRACE_SYSTEM_STRING define 2015-04-07 12:29:23 -04:00
drm_vm.c drm: Silence sparse warnings 2015-03-13 17:37:35 +01:00
drm_vma_manager.c
Kconfig drm/vgem: implement virtual GEM 2015-04-02 09:21:48 +10:00
Makefile drm/vgem: implement virtual GEM 2015-04-02 09:21:48 +10:00