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drm/i915/mtl: Add TC port lockdep assert to AUX power well enabling

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Similarly to earlier platforms, assert in the MTL AUX power well
enabling handler for TC AUX CH power wells that the TC port using the
AUX CH is locked.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230830140421.2031111-2-imre.deak@intel.com
This commit is contained in:
Imre Deak 2023-08-30 17:04:21 +03:00
parent 74c699e419
commit 7ce8ac49e4
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/i915/display/intel_display_power_well.c
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@ -1794,6 +1794,11 @@ static void xelpdp_aux_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
enum phy phy = icl_aux_pw_to_phy(dev_priv, power_well);
if (intel_phy_is_tc(dev_priv, phy))
icl_tc_port_assert_ref_held(dev_priv, power_well,
aux_ch_to_digital_port(dev_priv, aux_ch));
intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,