alistair23-linux/drivers/gpu/drm
Laurent Pinchart 6a00a4221a drm: rcar-du: Restrict DPLL duty cycle workaround to H3 ES1.x
The H3 ES1.x exhibits dot clock duty cycle stability issues. We can work
around them by configuring the DPLL to twice the desired frequency,
coupled with a /2 post-divider. This isn't needed on other SoCs and
breaks HDMI output on M3-W for a currently unknown reason, so restrict
the workaround to H3 ES1.x.

From an implementation point of view, move work around handling outside
of the rcar_du_dpll_divider() function by requesting a x2 DPLL output
frequency explicitly. The existing post-divider calculation mechanism
will then take care of dividing the clock by two automatically.

While at it, print a more useful debugging message to ease debugging
clock rate issues.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
2017-08-03 16:17:23 +03:00
..
amd Linux 4.13-rc2 2017-07-27 08:15:43 +10:00
arc drm: Convert atomic drivers from CRTC .disable() to .atomic_disable() 2017-06-30 14:53:15 +02:00
arm drm/mali: Use new atomic iterator macros 2017-07-13 09:54:12 +02:00
armada drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
ast drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
atmel-hlcdc drm/atmel-hlcdc: Handle drm_atomic_helper_swap_state failure 2017-07-26 13:22:41 +02:00
bochs drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
bridge Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
cirrus drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
etnaviv main drm pull for v4.13 2017-07-09 18:48:37 -07:00
exynos drm/atomic: implement drm_atomic_helper_commit_tail for runtime_pm users 2017-07-26 13:45:08 +02:00
fsl-dcu drm: Add old state pointer to CRTC .enable() helper function 2017-06-30 14:53:14 +02:00
gma500 drm/gma500: remove an unneeded NULL check 2017-06-28 19:17:38 +02:00
hisilicon drm/hisilicon: fix build error without fbdev emulation 2017-07-26 13:45:09 +02:00
i2c drm: handle HDMI 2.0 VICs in AVI info-frames 2017-07-14 21:23:54 +03:00
i810 drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
i915 Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
imx Linux 4.13-rc2 2017-07-27 08:15:43 +10:00
lib
mediatek drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
meson drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
mga Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
mgag200 drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
msm drm/msm: Handle drm_atomic_helper_swap_state failure 2017-07-26 13:22:42 +02:00
mxsfb drm/mxsfb: Use gem_free_object_unlocked 2017-07-18 08:40:54 +02:00
nouveau Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
omapdrm drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
panel drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
pl111 drm/pl111: Use gem_free_object_unlocked 2017-07-18 08:40:54 +02:00
qxl drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
r128 drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
radeon Linux 4.13-rc2 2017-07-27 08:15:43 +10:00
rcar-du drm: rcar-du: Restrict DPLL duty cycle workaround to H3 ES1.x 2017-08-03 16:17:23 +03:00
rockchip drm/atomic: implement drm_atomic_helper_commit_tail for runtime_pm users 2017-07-26 13:45:08 +02:00
savage drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
selftests
shmobile drm/shmob: Drop drm_vblank_cleanup 2017-06-22 08:41:15 +02:00
sis drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
sti drm: handle HDMI 2.0 VICs in AVI info-frames 2017-07-14 21:23:54 +03:00
stm drm/stm: ltdc: Add panel-bridge support 2017-07-18 12:06:42 +05:30
sun4i drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
tdfx drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
tegra drm/tegra: Handle drm_atomic_helper_swap_state failure 2017-07-26 13:22:42 +02:00
tilcdc drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
tinydrm drm/tinydrm: Add RePaper e-ink driver 2017-07-14 19:30:08 +02:00
ttm drm/ttm: Fix use-after-free in ttm_bo_clean_mm 2017-07-03 16:25:43 -04:00
udl drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
vc4 Linux 4.13-rc2 2017-07-27 08:15:43 +10:00
vgem drm/vgem: add compat_ioctl support 2017-07-17 21:08:31 +02:00
via drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
virtio drm/<drivers>: Drop fbdev info flags 2017-07-26 13:22:40 +02:00
vmwgfx Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
zte drm/zte: Use gem_free_object_unlocked 2017-07-18 08:40:54 +02:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c drm: rename, adjust and export drm_atomic_replace_property_blob 2017-07-14 15:53:06 +02:00
drm_atomic_helper.c drm/atomic: implement drm_atomic_helper_commit_tail for runtime_pm users 2017-07-26 13:45:08 +02:00
drm_auth.c
drm_blend.c
drm_bridge.c drm: Introduce drm_bridge_mode_valid() 2017-05-30 08:37:50 +02:00
drm_bufs.c switch compat_drm_mapbufs() to drm_ioctl_kernel() 2017-07-04 13:16:26 -04:00
drm_cache.c
drm_color_mgmt.c drm: More links for gamma support helpers 2017-06-20 12:13:11 +02:00
drm_connector.c Linux 4.12-rc7 2017-06-27 08:28:30 +10:00
drm_context.c
drm_crtc.c
drm_crtc_helper.c
drm_crtc_helper_internal.h drm: Add drm_{crtc/encoder/connector}_mode_valid() 2017-05-30 08:37:24 +02:00
drm_crtc_internal.h
drm_debugfs.c
drm_debugfs_crc.c drm/crc: Only open CRC on atomic drivers when the CRTC is active. 2017-07-17 16:34:51 +02:00
drm_dma.c
drm_dp_aux_dev.c drm_dp_aux_dev: switch to read_iter/write_iter 2017-07-08 20:51:46 -04:00
drm_dp_dual_mode_helper.c
drm_dp_helper.c drm/dp: start a DPCD based DP sink/branch device quirk database 2017-05-29 13:43:26 +03:00
drm_dp_mst_topology.c Linux 4.13-rc2 2017-07-27 08:15:43 +10:00
drm_drv.c drm: inhibit drm drivers register to uninitialized drm core 2017-07-11 12:03:11 +02:00
drm_dumb_buffers.c
drm_edid.c drm/edid: parse ycbcr 420 deep color information 2017-07-14 21:23:54 +03:00
drm_edid_load.c
drm_encoder.c
drm_encoder_slave.c
drm_fb_cma_helper.c drm: Convert CMA fbdev console suspend helpers to use bool 2017-06-20 16:23:40 +02:00
drm_fb_helper.c drm/fb-helper: Support deferred setup 2017-07-26 13:45:07 +02:00
drm_file.c Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2017-06-27 09:18:17 -04:00
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_gem.c drm: Don't complain too much about struct_mutex. 2017-07-18 09:17:22 +02:00
drm_gem_cma_helper.c drm: Update docs around gem_free_object 2017-07-26 13:22:39 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_ioc32.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_ioctl.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_irq.c drm/doc: Polish irq helper documentation 2017-06-01 08:02:14 +02:00
drm_kms_helper_common.c
drm_legacy.h switch compat_drm_mapbufs() to drm_ioctl_kernel() 2017-07-04 13:16:26 -04:00
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c
drm_modes.c drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
drm_modeset_helper.c
drm_modeset_lock.c drm: Improve kerneldoc for drm_modeset_lock 2017-07-26 13:45:08 +02:00
drm_of.c drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
drm_panel.c
drm_pci.c drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
drm_plane.c
drm_plane_helper.c
drm_prime.c
drm_print.c
drm_probe_helper.c drm: add helper to validate YCBCR420 modes 2017-07-14 21:23:54 +03:00
drm_property.c drm: rename, adjust and export drm_atomic_replace_property_blob 2017-07-14 15:53:06 +02:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c
drm_simple_kms_helper.c drm/simple-kms-helper: Fix the check for the mismatch between plane and CRTC enabled. 2017-07-13 09:44:51 +02:00
drm_syncobj.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_sysfs.c
drm_trace.h
drm_trace_points.c
drm_vblank.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_vm.c
drm_vma_manager.c
Kconfig
Makefile Merge tag 'drm-misc-next-2017-06-15' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-06-16 09:33:43 +10:00