Commit 27ffe6e5 authored by José Roberto de Souza's avatar José Roberto de Souza
Browse files

drm/i915/tgl: Check the UC health of tc controllers after power on

New step added for TGL, required for us to check the TC
microcontroller health after power on TC aux.

BSpec: 49294

Reviewed-by: default avatarImre Deak <>
Signed-off-by: default avatarJosé Roberto de Souza <>
parent 8aaf5cbd
......@@ -562,6 +562,8 @@ static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv,
#define TGL_AUX_PW_TO_TC_PORT(pw_idx) ((pw_idx) - TGL_PW_CTL_IDX_AUX_TC1)
static void
icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
......@@ -578,6 +580,17 @@ icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv,
I915_WRITE(DP_AUX_CH_CTL(aux_ch), val);
hsw_power_well_enable(dev_priv, power_well);
if (INTEL_GEN(dev_priv) >= 12 && !power_well->desc->hsw.is_tc_tbt) {
enum tc_port tc_port;
tc_port = TGL_AUX_PW_TO_TC_PORT(power_well->desc->hsw.idx);
I915_WRITE(HIP_INDEX_REG(tc_port), HIP_INDEX_VAL(tc_port, 0x2));
if (intel_de_wait_for_set(dev_priv, DKL_CMN_UC_DW_27(tc_port),
DRM_WARN("Timeout waiting TC uC health\n");
static void
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