| Message ID | 20230505110917.1918957-1-ankit.k.nautiyal@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915/display: Update the DDI_BUF_CTL active timeout for ADL-P | expand |
Quoting Ankit Nautiyal (2023-05-05 08:09:17) >For ADL-P the timeout for DDI_BUF_CTL active is 500usec. >Update the same as per Bspec:55424. I think the Bspec number could go as a trailer. We could also add BSpec 49191 here. Acked-by: Gustavo Sousa <gustavo.sousa@intel.com> > >Fixes: 5add4575c298 ("drm/i915/ddi: Align timeout for DDI_BUF_CTL active with Bspec") >Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com> >Cc: Imre Deak <imre.deak@intel.com> >Cc: Lucas De Marchi <lucas.demarchi@intel.com> >Cc: <stable@vger.kernel.org> # v6.3+ > >Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> >--- > drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++ > 1 file changed, 3 insertions(+) > >diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c >index 55f36d9d509c..6d8e4d7a784e 100644 >--- a/drivers/gpu/drm/i915/display/intel_ddi.c >+++ b/drivers/gpu/drm/i915/display/intel_ddi.c >@@ -216,8 +216,11 @@ static void intel_wait_ddi_buf_active(struct drm_i915_private *dev_priv, > } else if (DISPLAY_VER(dev_priv) >= 12) { > if (intel_phy_is_tc(dev_priv, phy)) > timeout_us = 3000; >+ else if (IS_ALDERLAKE_P(dev_priv)) >+ timeout_us = 500; > else > timeout_us = 1000; >+ > } else { > timeout_us = 500; > } >-- >2.25.1 >
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 55f36d9d509c..6d8e4d7a784e 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -216,8 +216,11 @@ static void intel_wait_ddi_buf_active(struct drm_i915_private *dev_priv, } else if (DISPLAY_VER(dev_priv) >= 12) { if (intel_phy_is_tc(dev_priv, phy)) timeout_us = 3000; + else if (IS_ALDERLAKE_P(dev_priv)) + timeout_us = 500; else timeout_us = 1000; + } else { timeout_us = 500; }
For ADL-P the timeout for DDI_BUF_CTL active is 500usec. Update the same as per Bspec:55424. Fixes: 5add4575c298 ("drm/i915/ddi: Align timeout for DDI_BUF_CTL active with Bspec") Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: <stable@vger.kernel.org> # v6.3+ Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> --- drivers/gpu/drm/i915/display/intel_ddi.c | 3 +++ 1 file changed, 3 insertions(+)