OpenCloudOS-Kernel/drivers/gpu/drm
Jonathan Liu 111f4c3309 drm/sun4i: hdmi: Check for unset best_parent in sun4i_tmds_determine_rate
It is possible that if there is no exact rate match and
"rounded = clk_hw_round_rate(parent, ideal)" gives high enough values
(e.g. if rounded is 2 * ideal) that the condition
"abs(rate - rounded / i) < abs(rate - best_parent / best_div)" is never
met and best_parent is never set. This results in req->rate and
req->best_parent_rate being assigned 0.

To avoid this, we set best_parent to the first calculated rate if it is
unset. The sun4i_tmds_calc_divider function already has a similar check.

Fixes: 9c5681011a ("drm/sun4i: Add HDMI support")
Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180109020323.11852-2-net147@gmail.com
2018-01-11 13:25:13 +01:00
..
amd drm/amd/display: call set csc_default if enable adjustment is false 2018-01-02 14:53:27 -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 drm/armada: fix YUV planar format framebuffer offsets 2017-12-08 12:16:22 +00:00
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 2018-01-09 12:03:10 +10:00
omapdrm omapdrm/dss/hdmi4_cec: fix interrupt handling 2018-01-02 14:20:10 +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: Check for unset best_parent in sun4i_tmds_determine_rate 2018-01-11 13:25:13 +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: check the return value of kzalloc 2018-01-02 14:54:05 -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: Move IRQ enable to PM path 2018-01-03 15:56:03 -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
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
ati_pcigart.c
drm_agpsupport.c drm/agpsupport: Remove extra blank line 2017-09-20 09:54:19 -07:00
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: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
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: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
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