diff options
| author | José Roberto de Souza <[email protected]> | 2019-09-20 13:58:10 -0700 |
|---|---|---|
| committer | José Roberto de Souza <[email protected]> | 2019-09-23 10:38:15 -0700 |
| commit | 27ffe6e570aa93e8389f7b0299a329e51d02843c (patch) | |
| tree | 210b961e448bbdce609be830627e50694eb91dfa | |
| parent | 8aaf5cbda8f1684ffb7027724f67da086f46a0f4 (diff) | |
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: Imre Deak <[email protected]>
Signed-off-by: José Roberto de Souza <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 13 |
1 files changed, 13 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 ce88a27229ef..f1186bc23542 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -562,6 +562,8 @@ static void icl_tc_port_assert_ref_held(struct drm_i915_private *dev_priv, #endif +#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), + DKL_CMN_UC_DW27_UC_HEALTH, 1)) + DRM_WARN("Timeout waiting TC uC health\n"); + } } static void |