linux/drivers/gpu
Suraj Kandpal 1d79c50e2e drm/i915/lt_phy: program DDI_CLK_VALFREQ with DDI clock frequency
DDI_CLK_VALFREQ is programmed with the port clock, which for DP is the
symbol clock computed assuming 8b/10b encoding (link_rate / 10). For
DP 128b/132b (UHBR) rates and for HDMI FRL the port clock needs to
be modified.
DDI_CLK_VALFREQ does not have any functional impact on H/w, it
only records the frequency S/w intends to set.
Use intel_ddi_link_symbol_clock() to write the correct DDI clock in
kHz

Fixes: 5ec58d7149 ("drm/i915/lt_phy: Add .enable_clock hook on DDI")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260811175844.2613721-4-suraj.kandpal@intel.com
(cherry picked from commit eaed815ca3)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-08-31 12:56:49 +03:00
..
drm drm/i915/lt_phy: program DDI_CLK_VALFREQ with DDI clock frequency 2026-08-31 12:56:49 +03:00
host1x Linux 7.2 2026-08-20 10:58:44 +10:00
ipu-v3
nova-core drm for 7.3-rc1 2026-08-21 08:41:00 -07:00
tests drm/tests/gpu_buddy: fix interleaving in buffer clearance test 2026-08-06 18:07:10 +05:30
trace
vga fbdev: Wrap fbcon updates from vga-switcheroo in helper 2026-06-09 16:00:11 +02:00
buddy.c Linux 7.2 2026-08-20 10:58:44 +10:00
Kconfig gpu: Fix dependencies in CONFIG_GPU_BUDDY_KUNIT_TEST 2026-07-29 13:06:24 +02:00
Makefile gpu: drm: nova: depend on nova-core and use its symbols 2026-06-29 11:28:39 +02:00