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| author | Suraj Kandpal <suraj.kandpal@intel.com> | 2026-08-11 23:28:43 +0530 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2026-08-12 13:26:56 -0400 |
| commit | 076c7771ddc6cb3b59029324bb658ae7ef4af1d0 (patch) | |
| tree | d3990935aeed7fde5e87d68d13928cf873ab8dc3 /scripts | |
| parent | bf49c86ec8aa82e8357d527a9d6df3ab650da2cc (diff) | |
| download | linux-next-076c7771ddc6cb3b59029324bb658ae7ef4af1d0.tar.gz linux-next-076c7771ddc6cb3b59029324bb658ae7ef4af1d0.zip | |
drm/i915/cx0: 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 modfied.
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: 51390cc0e00a ("drm/i915/mtl: Add Support for C10 PHY message bus and pll programming")
Fixes: 73fc3abcb797 ("drm/i915/mtl: Enabling/disabling sequence Thunderbolt pll")
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260811175844.2613721-3-suraj.kandpal@intel.com
(cherry picked from commit 9ac3ee6c0f92cd09893bd442964fb6b0d6813b5e)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions
