diff options
| author | Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2022-08-18 16:41:50 -0700 |
|---|---|---|
| committer | Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2022-08-25 12:52:00 -0700 |
| commit | 61c86578229d2f0a71296663027bd774002f1506 (patch) | |
| tree | 42a679ff46818463650bd1021bde3de617f1b165 /drivers/gpu/drm/i915/display/intel_display_power.c | |
| parent | 612dc414458ff439d90a6c491fa5d064a6412713 (diff) | |
| download | linux-61c86578229d2f0a71296663027bd774002f1506.tar.gz linux-61c86578229d2f0a71296663027bd774002f1506.tar.bz2 linux-61c86578229d2f0a71296663027bd774002f1506.zip | |
drm/i915/mtl: Add support for MTL in Display Init sequences
The initialization sequence for Meteorlake reuses the sequence for
icelake for most parts. Some changes viz. reset PICA handshake
are added.
Bspec: 49189
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-10-radhakrishna.sripada@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_power.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index f7e8d1ff62cf..9c1fefb2da55 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -1382,6 +1382,9 @@ static void intel_pch_reset_handshake(struct drm_i915_private *dev_priv, reset_bits = RESET_PCH_HANDSHAKE_ENABLE; } + if (DISPLAY_VER(dev_priv) >= 14) + reset_bits |= MTL_RESET_PICA_HANDSHAKE_EN; + val = intel_de_read(dev_priv, reg); if (enable) |