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dd2939efd52fdf1e554efcc44a31ba0bcf674c5e
linux/drivers/gpu/drm
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Qingqing Zhuo dd2939efd5 drm/amd/display: workaround for hard hang on HPD on native DP 
[Why]
HPD disable and enable sequences are not mutually exclusive
on Linux. For HPDs that spans over 1s (i.e. HPD low = 1s),
part of the disable sequence (specifically, a request to SMU
to lower refclk) could come right before the call to PHY
enable, causing DMUB to access an unresponsive PHY
and thus a hard hang on the system.

[How]
Disable 48mhz refclk off on native DP.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-08-05 21:17:58 -04:00
..
amd
drm/amd/display: workaround for hard hang on HPD on native DP
2021-08-05 21:17:58 -04:00
arm
drm/arm/komeda: Don't include drm_irq.h
2021-07-08 14:10:47 +02:00
armada
drm/aperture: Pass DRM driver structure instead of driver name
2021-07-01 11:11:55 +02:00
aspeed
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
ast
drm/ast: Disable fast reset after DRAM initial
2021-07-20 11:19:57 +02:00
atmel-hlcdc
drm/atmel-hlcdc: Allow async page flips
2021-06-19 23:06:56 +02:00
bridge
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
etnaviv
drm/sched: Allow using a dedicated workqueue for the timeout/fault tdr
2021-07-01 08:53:25 +02:00
exynos
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
fsl-dcu
drm: Use state helper instead of the plane state pointer
2021-02-25 08:05:28 +01:00
gma500
drm/gma500: Add the missed drm_gem_object_put() in psb_user_framebuffer_create()
2021-07-09 21:32:04 +02:00
gud
drm/gud: Use framebuffer dma-buf helpers
2021-07-23 20:18:04 +02:00
hisilicon
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
hyperv
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
i2c
…
i810
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
i915
Backmerge tag 'v5.14-rc3' into drm-next
2021-07-26 09:27:59 +10:00
imx
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
ingenic
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
kmb
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
lib
…
lima
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
mcde
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
mediatek
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
meson
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
mga
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
mgag200
drm/mgag200: Constify LUT for programming bpp
2021-07-05 08:55:47 +02:00
msm
Merge tag 'drm-msm-next-2021-07-28' of https://gitlab.freedesktop.org/drm/msm into drm-next
2021-07-30 16:24:01 +10:00
mxsfb
drm: mxsfb: Clear FIFO_CLEAR bit
2021-07-27 21:15:24 +02:00
nouveau
Merge tag 'drm-misc-next-2021-07-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-23 11:32:43 +10:00
omapdrm
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
panel
drm/panel-sony-acx424akp: Modernize backlight handling
2021-07-28 23:46:18 +02:00
panfrost
drm/panfrost: devfreq: Don't display error for EPROBE_DEFER
2021-07-23 12:06:29 +01:00
pl111
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
qxl
Merge tag 'drm-misc-next-2021-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-21 11:58:28 +10:00
r128
drm: fix leaked dma handles after removing drm_pci_free
2021-05-26 21:18:13 +02:00
radeon
gpu/drm/radeon: Fix typo in comments
2021-08-02 17:21:25 -04:00
rcar-du
drm: rcar-du: lvds: Use dev_err_probe()
2021-07-28 16:33:32 +03:00
rockchip
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
savage
drm/savage: Remove references to struct drm_device.pdev
2021-05-03 19:48:30 +02:00
scheduler
drm/sched: Allow using a dedicated workqueue for the timeout/fault tdr
2021-07-01 08:53:25 +02:00
selftests
drm: allow drm_atomic_print_state() to accept any drm_printer
2021-06-23 07:32:13 -07:00
shmobile
drm/shmobile: Convert to Linux IRQ interfaces
2021-07-25 11:01:12 +02:00
sis
drm/sis: Remove references to struct drm_device.pdev
2021-05-03 19:48:33 +02:00
sti
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
stm
drm/stm: dsi: compute the transition time from LP to HS and back
2021-07-19 15:35:55 +02:00
sun4i
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
tdfx
drm: Constify drm_driver in drivers that don't modify it
2021-01-05 07:20:36 +02:00
tegra
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
tidss
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
tilcdc
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
tiny
drm/st7586: Use framebuffer dma-buf helpers
2021-07-23 20:18:14 +02:00
ttm
Backmerge tag 'v5.14-rc3' into drm-next
2021-07-26 09:27:59 +10:00
tve200
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
udl
drm/udl: Use framebuffer dma-buf helpers
2021-07-23 20:17:42 +02:00
v3d
drm/v3d: Expose performance counters to userspace
2021-07-21 00:19:59 +01:00
vboxvideo
drm/vbox: Convert to Linux IRQ interfaces
2021-07-15 11:16:06 +02:00
vc4
Merge tag 'drm-misc-next-2021-07-29' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-07-30 14:52:00 +10:00
vgem
Revert "drm/vgem: Implement mmap as GEM object function"
2021-07-13 13:15:52 +02:00
via
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
virtio
drm/aperture: Pass DRM driver structure instead of driver name
2021-07-01 11:11:55 +02:00
vkms
drm/vkms: Use dma-buf mapping from shadow-plane state for composing
2021-07-13 13:36:21 +02:00
vmwgfx
drm/vmwgfx: Use 2.19 version number to recognize mks-stats ioctls
2021-07-28 14:53:26 -04:00
xen
drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default
2021-06-24 15:40:11 +02:00
xlnx
drm/xlnx: Don't set struct drm_device.irq_enabled
2021-06-29 15:40:53 +02:00
zte
drm/zte: Don't set struct drm_device.irq_enabled
2021-06-29 15:40:53 +02:00
drm_agpsupport.c
drm: Include <asm/agp.h> iff CONFIG_AGP is set
2021-05-11 14:13:33 +02:00
drm_aperture.c
drm/aperture: Pass DRM driver structure instead of driver name
2021-07-01 11:11:55 +02:00
drm_atomic_helper.c
drm/atomic-helper: make drm_gem_plane_helper_prepare_fb the default
2021-06-24 15:35:13 +02:00
drm_atomic_state_helper.c
…
drm_atomic_uapi.c
Merge tag 'drm-msm-next-2021-06-23b' of https://gitlab.freedesktop.org/drm/msm into drm-next
2021-06-24 07:21:16 +10:00
drm_atomic.c
Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next
2021-07-27 12:48:17 +02:00
drm_auth.c
drm: use the lookup lock in drm_is_current_master
2021-07-28 23:19:58 +02:00
drm_blend.c
drm: drm_blend.c: Use tabs for code indents
2021-04-22 10:46:35 +02:00
drm_bridge_connector.c
…
drm_bridge.c
drm/bridge: Centralize error message when bridge attach fails
2021-07-28 16:33:12 +03:00
drm_bufs.c
drm: fix leaked dma handles after removing drm_pci_free
2021-05-26 21:18:13 +02:00
drm_cache.c
drm: Add a prefetching memcpy_from_wc
2021-06-07 16:07:08 +02:00
drm_client_modeset.c
drm: replace drm_modeset_lock_all() in drm_client_modeset_dpms_legacy()
2021-02-09 17:16:57 +01:00
drm_client.c
…
drm_color_mgmt.c
drm: add legacy support for using degamma for gamma
2020-12-15 15:46:03 +02:00
drm_connector.c
drm: avoid circular locks in drm_mode_getconnector
2021-07-20 20:13:56 +02:00
drm_context.c
drm: correct function name drm_legacy_ctxbitmap_flush()
2021-05-16 22:01:14 +02:00
drm_crtc_helper_internal.h
drm: remove drm_fb_helper_modinit
2021-02-08 12:20:38 +01:00
drm_crtc_helper.c
…
drm_crtc_internal.h
Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next
2021-07-27 12:48:17 +02:00
drm_crtc.c
drm: Switch to %p4cc format modifier
2021-02-17 12:52:59 +01:00
drm_damage_helper.c
drm/plane: Move drm_plane_enable_fb_damage_clips into core
2021-07-27 12:21:22 +02:00
drm_debugfs_crc.c
drm/doc: document how userspace should find out CRTC index
2021-06-10 19:14:47 +02:00
drm_debugfs.c
drm: avoid blocking in drm_clients_info's rcu section
2021-07-20 20:14:42 +02:00
drm_displayid.c
drm/displayid: rename displayid_hdr to displayid_header
2021-03-31 15:42:39 +03:00
drm_dma.c
drm: remove usage of drm_pci_alloc/free
2021-04-26 18:19:15 +02:00
drm_dp_aux_bus.c
drm: Introduce the DP AUX bus
2021-06-11 12:30:39 -07:00
drm_dp_aux_dev.c
drm/dp: Add backpointer to drm_device in drm_dp_aux
2021-04-27 18:43:42 -04:00
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
drm/dp_dual_mode: Convert drm_dp_dual_mode_helper.c to using drm_err/drm_dbg_kms()
2021-04-27 18:43:45 -04:00
drm_dp_helper.c
drm/dp: For drm_panel_dp_aux_backlight(), init backlight as disabled
2021-07-15 08:03:29 -07:00
drm_dp_mst_topology_internal.h
…
drm_dp_mst_topology.c
drm/dp_mst: Fix return code on sideband message failure
2021-07-27 18:58:28 -04:00
drm_drv.c
drm: Add a prefetching memcpy_from_wc
2021-06-07 16:07:08 +02:00
drm_dsc.c
…
drm_dumb_buffers.c
drm: Don't export the drm_gem_dumb_destroy() function
2021-01-05 07:20:25 +02:00
drm_edid_load.c
…
drm_edid.c
drm/edid: use the new displayid iterator for tile info
2021-03-31 15:42:02 +03:00
drm_encoder_slave.c
…
drm_encoder.c
drm: add drmm_encoder_alloc()
2021-01-04 12:59:33 +01:00
drm_fb_cma_helper.c
drm: Add and export function drm_fb_cma_sync_non_coherent
2021-05-25 11:42:09 +01:00
drm_fb_helper.c
drm/fb-helper: improve DRM fbdev emulation device names
2021-05-26 21:22:38 +02:00
drm_file.c
drm: serialize drm_file.master with a new spinlock
2021-07-20 20:17:58 +02:00
drm_flip_work.c
…
drm_format_helper.c
drm/format-helper: Add blitter functions
2021-05-01 12:45:03 +02:00
drm_fourcc.c
Merge tag 'amd-drm-next-5.14-2021-06-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
2021-06-04 06:13:57 +10:00
drm_framebuffer.c
drm: add logging for RMFB ioctl
2021-07-27 14:16:40 +02:00
drm_gem_atomic_helper.c
drm/gem: Export implementation of shadow-plane helpers
2021-07-13 13:30:58 +02:00
drm_gem_cma_helper.c
drm: Fix misleading documentation of drm_gem_cma_create()
2021-06-01 17:27:20 +01:00
drm_gem_framebuffer_helper.c
drm/gem: Provide drm_gem_fb_{begin,end}_cpu_access() helpers
2021-07-23 20:17:13 +02:00
drm_gem_shmem_helper.c
drm/shmem-helper: Align to page size in dumb_create
2021-07-13 15:44:15 +02:00
drm_gem_ttm_helper.c
drm/ttm: rename bo->mem and make it a pointer
2021-06-02 11:07:25 +02:00
drm_gem_vram_helper.c
drm/vram-helper: Unexport drm_vram_helper_{alloc,release}_mm()
2021-07-05 08:55:11 +02:00
drm_gem.c
Merge tag 'drm-msm-next-2021-07-28' of https://gitlab.freedesktop.org/drm/msm into drm-next
2021-07-30 16:24:01 +10:00
drm_hashtab.c
…
drm_hdcp.c
…
drm_internal.h
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_ioc32.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_ioctl.c
drm: Return -ENOTTY for non-drm ioctls
2021-07-20 15:57:43 +02:00
drm_irq.c
vgaarb: provide a vga_client_unregister wrapper
2021-07-21 10:29:00 +02:00
drm_kms_helper_common.c
drm: remove drm_fb_helper_modinit
2021-02-08 12:20:38 +01:00
drm_lease.c
drm: clarify usage of drm leases
2021-07-29 09:12:01 +02:00
drm_legacy_misc.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_legacy.h
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_lock.c
…
drm_managed.c
…
drm_memory.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_mipi_dbi.c
drm/mipi-dbi: Use framebuffer dma-buf helpers
2021-07-23 20:17:59 +02:00
drm_mipi_dsi.c
…
drm_mm.c
…
drm_mode_config.c
Merge tag 'drm-misc-next-2021-01-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2021-01-07 13:40:20 +01:00
drm_mode_object.c
…
drm_modes.c
Merge drm/drm-next into drm-misc-next
2021-05-11 15:59:18 +02:00
drm_modeset_helper.c
…
drm_modeset_lock.c
…
drm_of.c
drm/of: free the iterator object on failure
2021-07-15 10:54:04 +01:00
drm_panel_orientation_quirks.c
drm: Added orientation quirk for OneGX1 Pro
2021-01-20 22:33:01 +01:00
drm_panel.c
drm/dp: Move panel DP AUX backlight support to drm_dp_helper
2021-07-13 06:38:37 -07:00
drm_pci.c
drm: Mark IRQ_BUSID ioctl as legacy
2021-05-17 21:19:48 +02:00
drm_plane_helper.c
…
drm_plane.c
drm/plane: Move drm_plane_enable_fb_damage_clips into core
2021-07-27 12:21:22 +02:00
drm_prime.c
drm/prime: fix comment on PRIME Helpers
2021-07-27 12:21:22 +02:00
drm_print.c
…
drm_probe_helper.c
drm/probe-helper: Check epoch counter in output_poll_execute()
2021-03-16 12:45:52 +01:00
drm_property.c
drm: Few typo fixes
2021-03-18 14:22:50 +01:00
drm_rect.c
…
drm_scatter.c
…
drm_scdc_helper.c
…
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c
drm/simple-helper: drm_gem_simple_display_pipe_prepare_fb as default
2021-06-24 15:39:46 +02:00
drm_syncobj.c
dma-buf: add dma_fence_chain_alloc/free v3
2021-06-14 19:38:34 +02:00
drm_sysfs.c
drm/sysfs: Convert sysfs sprintf/snprintf family to sysfs_emit
2021-03-23 07:41:39 -04:00
drm_trace_points.c
…
drm_trace.h
…
drm_vblank_work.c
…
drm_vblank.c
drm: Don't test for IRQ support in VBLANK ioctls
2021-06-29 11:03:39 +02:00
drm_vm.c
drm: Mark AGP implementation and ioctls as legacy
2021-05-10 15:46:58 +02:00
drm_vma_manager.c
…
drm_writeback.c
…
Kconfig
drm/bochs: Move to tiny/
2021-07-05 08:54:44 +02:00
Makefile
drm/bochs: Move to tiny/
2021-07-05 08:54:44 +02:00