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| author | Gustavo Sousa <gustavo.sousa@intel.com> | 2023-09-19 12:21:22 -0700 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2023-09-21 08:18:06 -0700 |
| commit | 696c331990cf6cf00506b9e56e0fe7a075cf47c5 (patch) | |
| tree | 8e8266a4f52a8754794a2d55f53653a68a15bfd2 | |
| parent | 533a7836d39f1a60dc78fb46f6cde9a25ffafe2d (diff) | |
| download | linux-696c331990cf6cf00506b9e56e0fe7a075cf47c5.tar.gz linux-696c331990cf6cf00506b9e56e0fe7a075cf47c5.tar.bz2 linux-696c331990cf6cf00506b9e56e0fe7a075cf47c5.zip | |
drm/i915/xe2lpd: Add support for HPD
Hotplug setup for Xe2_LPD differs from Xe_LPD+ by the fact that the
extra programming for hotplug inversion and DDI HPD filter duration is
not necessary anymore. As mtp_hpd_irq_setup() is reasonably small,
prefer to fork it into a new function for Xe2_LPD instead of adding a
platform check.
v2: Add extra bspec reference and fix missing else (Matt Roper)
BSpec: 68970, 69940
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919192128.2045154-16-lucas.demarchi@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hotplug_irq.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c index 3398cc21bd26..f07047e9cb30 100644 --- a/drivers/gpu/drm/i915/display/intel_hotplug_irq.c +++ b/drivers/gpu/drm/i915/display/intel_hotplug_irq.c @@ -163,7 +163,9 @@ static void intel_hpd_init_pins(struct drm_i915_private *dev_priv) (!HAS_PCH_SPLIT(dev_priv) || HAS_PCH_NOP(dev_priv))) return; - if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) + if (INTEL_PCH_TYPE(dev_priv) >= PCH_LNL) + hpd->pch_hpd = hpd_mtp; + else if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) hpd->pch_hpd = hpd_sde_dg1; else if (INTEL_PCH_TYPE(dev_priv) >= PCH_MTP) hpd->pch_hpd = hpd_mtp; @@ -1063,6 +1065,19 @@ static void mtp_hpd_irq_setup(struct drm_i915_private *i915) mtp_tc_hpd_detection_setup(i915); } +static void xe2lpd_sde_hpd_irq_setup(struct drm_i915_private *i915) +{ + u32 hotplug_irqs, enabled_irqs; + + enabled_irqs = intel_hpd_enabled_irqs(i915, i915->display.hotplug.pch_hpd); + hotplug_irqs = intel_hpd_hotplug_irqs(i915, i915->display.hotplug.pch_hpd); + + ibx_display_interrupt_update(i915, hotplug_irqs, enabled_irqs); + + mtp_ddi_hpd_detection_setup(i915); + mtp_tc_hpd_detection_setup(i915); +} + static bool is_xelpdp_pica_hpd_pin(enum hpd_pin hpd_pin) { return hpd_pin >= HPD_PORT_TC1 && hpd_pin <= HPD_PORT_TC4; @@ -1122,7 +1137,9 @@ static void xelpdp_hpd_irq_setup(struct drm_i915_private *i915) xelpdp_pica_hpd_detection_setup(i915); - if (INTEL_PCH_TYPE(i915) >= PCH_MTP) + if (INTEL_PCH_TYPE(i915) >= PCH_LNL) + xe2lpd_sde_hpd_irq_setup(i915); + else if (INTEL_PCH_TYPE(i915) >= PCH_MTP) mtp_hpd_irq_setup(i915); } |