Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915: Skip programming FIA link enable bits for MTL+

Browse Source 
Starting with Xe_LPD+, although FIA is still used to readout Type-C pin
assignment, part of Type-C support is moved to PICA and programming
PORT_TX_DFLEXDPMLE1(*) registers is not applicable anymore like it was
for previous display IPs (e.g. see BSpec 49190).

v2:
  - Mention Bspec 49190 as a reference of instructions for previous
    IPs. (Shekhar Chauhan)
  - s/Xe_LPDP/Xe_LPD+/ in the commit message. (Matt Roper)
  - Update commit message to be more accurate to the changes in the IP.
    (Imre Deak)

Bspec: 65750, 65448
Reviewed-by: Shekhar Chauhan <shekhar.chauhan@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240625202652.315936-1-gustavo.sousa@intel.com
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
This commit is contained in:
Gustavo Sousa 2024-06-25 17:26:52 -03:00
parent 32a120f52a
commit 9fc97277eb
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/display/intel_tc.c
View File

@ -393,6 +393,9 @@ void intel_tc_port_set_fia_lane_count(struct intel_digital_port *dig_port,
bool lane_reversal = dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
u32 val;
if (DISPLAY_VER(i915) >= 14)
return;
drm_WARN_ON(&i915->drm,
lane_reversal && tc->mode != TC_PORT_LEGACY);