Most of the AUX_CH_CTL flags are concerned with DP AUX transfer parameters. As opposed to this the flag specifying the thunderbolt vs. non-thunderbolt mode of the port is not related to AUX transfers at all (rather it's repurposed to enable either TBT or non-TBT PHY HW blocks). The programming has to be done before enabling the corresponding AUX power well, so make it part of the power well code.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108548 Cc: Paulo Zanoni <paulo.r.zan...@intel.com> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com> Signed-off-by: Imre Deak <imre.d...@intel.com> --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/intel_runtime_pm.c | 69 +++++++++++++++++++++++++++++---- 2 files changed, 62 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index c57b701f72a7..dbf894835cb2 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -921,6 +921,7 @@ struct i915_power_well_desc { /* The pw is backing the VGA functionality */ bool has_vga:1; bool has_fuses:1; + bool is_tc_tbt; } hsw; }; const struct i915_power_well_ops *ops; diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 5f5416eb9644..eed17440a4a7 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -465,6 +465,44 @@ icl_combo_phy_aux_power_well_disable(struct drm_i915_private *dev_priv, hsw_wait_for_power_well_disable(dev_priv, power_well); } +#define ICL_AUX_PW_TO_CH(pw_idx) \ + ((pw_idx) - ICL_PW_CTL_IDX_AUX_A + AUX_CH_A) + +static void +icl_tc_phy_aux_power_well_enable(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + const struct i915_power_well_regs *regs = power_well->desc->hsw.regs; + int pw_idx = power_well->desc->hsw.idx; + enum aux_ch aux_ch = ICL_AUX_PW_TO_CH(pw_idx); + u32 val; + + val = I915_READ(DP_AUX_CH_CTL(aux_ch)); + val &= ~DP_AUX_CH_CTL_TBT_IO; + if (power_well->desc->hsw.is_tc_tbt) + val |= DP_AUX_CH_CTL_TBT_IO; + I915_WRITE(DP_AUX_CH_CTL(aux_ch), val); + + val = I915_READ(regs->driver); + I915_WRITE(regs->driver, val | HSW_PWR_WELL_CTL_REQ(pw_idx)); + + hsw_wait_for_power_well_enable(dev_priv, power_well); +} + +static void +icl_tc_phy_aux_power_well_disable(struct drm_i915_private *dev_priv, + struct i915_power_well *power_well) +{ + const struct i915_power_well_regs *regs = power_well->desc->hsw.regs; + int pw_idx = power_well->desc->hsw.idx; + u32 val; + + val = I915_READ(regs->driver); + I915_WRITE(regs->driver, val & ~HSW_PWR_WELL_CTL_REQ(pw_idx)); + + hsw_wait_for_power_well_disable(dev_priv, power_well); +} + /* * We should only use the power well if we explicitly asked the hardware to * enable it, so check if it's enabled and also check if we've requested it to @@ -2725,6 +2763,13 @@ static const struct i915_power_well_ops icl_combo_phy_aux_power_well_ops = { .is_enabled = hsw_power_well_enabled, }; +static const struct i915_power_well_ops icl_tc_phy_aux_power_well_ops = { + .sync_hw = hsw_power_well_sync_hw, + .enable = icl_tc_phy_aux_power_well_enable, + .disable = icl_tc_phy_aux_power_well_disable, + .is_enabled = hsw_power_well_enabled, +}; + static const struct i915_power_well_regs icl_aux_power_well_regs = { .bios = ICL_PWR_WELL_CTL_AUX1, .driver = ICL_PWR_WELL_CTL_AUX2, @@ -2870,81 +2915,89 @@ static const struct i915_power_well_desc icl_power_wells[] = { { .name = "AUX C", .domains = ICL_AUX_C_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_C, + .hsw.is_tc_tbt = false, }, }, { .name = "AUX D", .domains = ICL_AUX_D_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_D, + .hsw.is_tc_tbt = false, }, }, { .name = "AUX E", .domains = ICL_AUX_E_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_E, + .hsw.is_tc_tbt = false, }, }, { .name = "AUX F", .domains = ICL_AUX_F_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_F, + .hsw.is_tc_tbt = false, }, }, { .name = "AUX TBT1", .domains = ICL_AUX_TBT1_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT1, + .hsw.is_tc_tbt = true, }, }, { .name = "AUX TBT2", .domains = ICL_AUX_TBT2_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT2, + .hsw.is_tc_tbt = true, }, }, { .name = "AUX TBT3", .domains = ICL_AUX_TBT3_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT3, + .hsw.is_tc_tbt = true, }, }, { .name = "AUX TBT4", .domains = ICL_AUX_TBT4_IO_POWER_DOMAINS, - .ops = &hsw_power_well_ops, + .ops = &icl_tc_phy_aux_power_well_ops, .id = DISP_PW_ID_NONE, { .hsw.regs = &icl_aux_power_well_regs, .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT4, + .hsw.is_tc_tbt = true, }, }, { -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
