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linux/drivers/gpu/drm
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Lucas De Marchi 30414f3010 drm/i915: Apply Display WA #1183 on skl, kbl, and cfl 
Display WA #1183 was recently added to workaround
"Failures when enabling DPLL0 with eDP link rate 2.16
or 4.32 GHz and CD clock frequency 308.57 or 617.14 MHz
(CDCLK_CTL CD Frequency Select 10b or 11b) used in this
 enabling or in previous enabling."

This workaround was designed to minimize the impact only
to save the bad case with that link rates. But HW engineers
indicated that it should be safe to apply broadly, although
they were expecting the DPLL0 link rate to be unchanged on
runtime.

We need to cover 2 cases: when we are in fact enabling DPLL0
and when we are just changing the frequency with small
differences.

This is based on previous patch by Rodrigo Vivi with suggestions
from Ville Syrjälä.

Cc: Arthur J Runyan <arthur.j.runyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171204232210.4958-1-lucas.demarchi@intel.com
(cherry picked from commit 53421c2fe9)
[ Lucas: Backport to 4.15 adding back variable that has been removed on
  commits not meant to be backported ]
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180102201837.6812-1-lucas.demarchi@intel.com
2018-01-04 14:39:08 +02:00
..
amd drm/amd/display: Fix rehook MST display not light back on 2017-12-15 17:32:42 -05:00
arc
arm Merge branch 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-fixes 2017-12-01 09:15:31 +10:00
armada main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ast main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
atmel-hlcdc main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bochs main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
bridge drm/bridge: analogix dp: Fix runtime PM state in get_modes() callback 2017-12-07 20:12:39 +05:30
cirrus drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
etnaviv main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
exynos drm/exynos: remove unnecessary function declaration 2017-12-07 10:34:40 +09:00
fsl-dcu fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
gma500 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
hisilicon drm/hisilicon: Ensure LDI regs are properly configured. 2017-11-01 10:36:50 +08:00
i2c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
i810
i915 drm/i915: Apply Display WA #1183 on skl, kbl, and cfl 2018-01-04 14:39:08 +02:00
imx drm/imx: always call wait_for_flip_done in commit_tail 2017-11-30 15:47:40 +01:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mediatek main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
meson drm/meson: Use drm_gem_fb_create() 2017-10-01 17:01:39 +02:00
mga
mgag200 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
msm treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mxsfb drm/mxsfb: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:02:20 +02:00
nouveau Merge branch 'linux-4.15' of git://github.com/skeggsb/linux into drm-fixes 2017-12-27 09:58:57 +10:00
omapdrm omapdrm: hdmi4_cec: signedness bug in hdmi4_cec_init() 2017-11-30 12:25:37 +02:00
panel main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
pl111 main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
qxl qxl: alloc & use shadow for dumb buffers 2017-10-23 08:23:11 +02:00
r128 r128: switch compat ioctls to drm_ioctl_kernel() 2017-09-29 13:42:35 -04:00
radeon drm/radeon: remove init of CIK VMIDs 8-16 for amdkfd 2017-11-29 14:43:20 -05:00
rcar-du main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
rockchip Linux 4.15-rc1 2017-11-27 10:54:33 +01:00
savage
selftests License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
shmobile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
sis
sti main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
stm drm/stm: ltdc: remove bridge from driver internal structure 2017-10-10 11:32:48 +02:00
sun4i drm/sun4i: hdmi: Move the mode_valid callback to the encoder 2017-12-20 12:59:46 +01:00
tdfx
tegra fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
tilcdc fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
tinydrm drm/tinydrm: Remove explicit .best_encoder assignment 2017-10-13 17:34:51 +02:00
ttm drm/ttm: max_cpages is in unit of native page 2017-12-12 15:39:45 -05:00
tve200 drm/tve200: Use drm_gem_fb_create() and drm_gem_fb_prepare_fb() 2017-10-01 17:04:36 +02:00
udl Merge tag 'drm-misc-next-2017-10-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2017-10-24 16:51:05 +10:00
vc4 drm/vc4: Release fence after signalling 2017-12-08 13:02:22 -08:00
vgem treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
via treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
virtio main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
vmwgfx main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
zte main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c drm: Reorganize drm_pending_event to support future event types [v2] 2017-10-21 07:23:40 +10:00
drm_atomic_helper.c drm/atomic: make drm_atomic_helper_wait_for_vblanks more agressive 2017-11-29 15:16:17 +01:00
drm_auth.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_blend.c
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_color_mgmt.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_connector.c drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_context.c
drm_crtc.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_crtc_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_crtc_helper_internal.h
drm_crtc_internal.h drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_debugfs.c
drm_debugfs_crc.c
drm_dma.c
drm_dp_aux_dev.c Pass mode to wait_on_atomic_t() action funcs and provide default actions 2017-11-13 15:38:16 +00:00
drm_dp_dual_mode_helper.c drm: Add retries for lspcon mode detection 2017-10-13 12:13:54 +03:00
drm_dp_helper.c drm/dp: WARN about invalid/unknown link rates and bw codes 2017-10-11 18:41:44 +03:00
drm_dp_mst_topology.c
drm_drv.c drm: Add new LEASE debug level 2017-10-25 16:31:29 +10:00
drm_dumb_buffers.c
drm_edid.c drm: Update edid-derived drm_display_info fields at edid property set [v2] 2017-12-13 14:51:37 +01:00
drm_edid_load.c
drm_encoder.c drm: Check mode object lease status in all master ioctl paths [v4] 2017-10-25 16:31:30 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c drm/fb-cma-helper: Remove unused functions 2017-10-01 17:05:39 +02:00
drm_fb_helper.c drm/fb_helper: Disable all crtc's when initial setup fails. 2017-11-29 15:37:31 +01:00
drm_file.c
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_gem.c drm: fix typo in drm_gem_get_pages() comment 2017-10-04 18:04:28 +02:00
drm_gem_cma_helper.c drm/gem-cma-helper: Change the level of the allocation failure message 2017-10-16 15:19:57 +02:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Improve documentation 2017-10-08 15:02:51 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: Add CRTC_GET_SEQUENCE and CRTC_QUEUE_SEQUENCE ioctls [v3] 2017-10-23 11:15:03 +10:00
drm_ioc32.c
drm_ioctl.c drm: Add four ioctls for managing drm mode object leases [v7] 2017-10-25 16:31:30 +10:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c drm: move lease init after validation in drm_lease_create 2017-12-21 09:49:40 +01:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c lib/rbtree,drm/mm: add rbtree_replace_node_cached() 2017-12-14 16:00:48 -08:00
drm_mode_config.c drm: rework delayed connector cleanup in connector_iter 2017-12-13 22:59:00 +01:00
drm_mode_object.c drm/mode_object: fix documentation for object lookups. 2017-11-10 13:50:47 +10:00
drm_modes.c
drm_modeset_helper.c
drm_modeset_lock.c drm: Require __GFP_NOFAIL for the legacy drm_modeset_lock_all 2017-10-31 17:36:46 +01:00
drm_of.c drm/drm_of: Move drm_of_panel_bridge_remove_function into header. 2017-10-13 16:59:36 +02:00
drm_panel.c
drm_pci.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_plane.c drm/plane: Make framebuffer refcounting the responsibility of setplane_internal callers 2017-12-20 14:49:06 +01:00
drm_plane_helper.c drm: Replace kzalloc with kcalloc 2017-10-13 15:49:03 -04:00
drm_prime.c drm/core: clean up references to drm_dev_unref() 2017-09-27 10:53:12 +02:00
drm_print.c
drm_probe_helper.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_property.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c
drm_syncobj.c drm/syncobj: Stop reusing the same struct file for all syncobj -> fd 2017-12-22 14:14:39 +10:00
drm_sysfs.c
drm_trace.h main drm pull request for v4.15 2017-11-15 20:42:10 -08:00
drm_trace_points.c
drm_vblank.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
drm_vm.c
drm_vma_manager.c
Kconfig Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
Makefile main drm pull request for v4.15 2017-11-15 20:42:10 -08:00