From 7ce8ac49e421cf115224a915126aacaa5ee9bb80 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Wed, 30 Aug 2023 17:04:21 +0300 Subject: [PATCH] drm/i915/mtl: Add TC port lockdep assert to AUX power well enabling 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 Reviewed-by: Rodrigo Vivi Link: https://patchwork.freedesktop.org/patch/msgid/20230830140421.2031111-2-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_display_power_well.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c index 916009894d89c..820b7d41a0a8f 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power_well.c +++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c @@ -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, -- 2.30.2