diff options
| author | Mika Kahola <mika.kahola@intel.com> | 2023-04-28 12:54:22 +0300 |
|---|---|---|
| committer | Radhakrishna Sripada <radhakrishna.sripada@intel.com> | 2023-04-28 14:51:54 -0700 |
| commit | 929f527a7b70a5a7810f83c5e8941657413596c3 (patch) | |
| tree | 5eb87b1c83ce685de803492f7ac0b1f78d8a0f6d /drivers/gpu/drm/i915/display/intel_ddi.c | |
| parent | 62618c7f117eedfd99b2f857885ed004d31df739 (diff) | |
drm/i915/mtl: C20 HW readout
Create a table for C20 DP1.4, DP2.0 and HDMI2.1 rates.
The PLL settings are based on table, not for algorithmic alternative.
For DP 1.4 only MPLLB is in use.
Once register settings are done, we read back C20 HW state.
BSpec: 64568
v2: Updated pll tables (RK)
MPLLB selection fix (RK)
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428095433.4109054-3-mika.kahola@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_ddi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_ddi.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index e4cc7a3cd137..bdd4c5871f86 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3853,10 +3853,13 @@ static void mtl_ddi_get_config(struct intel_encoder *encoder, struct drm_i915_private *i915 = to_i915(encoder->base.dev); enum phy phy = intel_port_to_phy(i915, encoder->port); - drm_WARN_ON(&i915->drm, !intel_is_c10phy(i915, phy)); + if (intel_is_c10phy(i915, phy)) { + intel_c10pll_readout_hw_state(encoder, &crtc_state->cx0pll_state.c10); + intel_c10pll_dump_hw_state(i915, &crtc_state->cx0pll_state.c10); + } else { + intel_c20pll_readout_hw_state(encoder, &crtc_state->cx0pll_state.c20); + } - intel_c10pll_readout_hw_state(encoder, &crtc_state->cx0pll_state.c10); - intel_c10pll_dump_hw_state(i915, &crtc_state->cx0pll_state.c10); crtc_state->port_clock = intel_c10pll_calc_port_clock(encoder, &crtc_state->cx0pll_state.c10); intel_ddi_get_config(encoder, crtc_state); |