| Message ID | 20241004203540.3884792-1-clinton.a.taylor@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915/display: Fuse bit for power management disable removed | expand |
On Fri, Oct 04, 2024 at 01:35:40PM -0700, Clint Taylor wrote: > Starting with Display 20 the fuse bit to disable Display PM has been > removed. > > BSPEC: 69464 > Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com> > Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com> > --- > drivers/gpu/drm/i915/display/intel_display_device.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c > index f33062322c66..19aadf635077 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_device.c > +++ b/drivers/gpu/drm/i915/display/intel_display_device.c > @@ -1653,8 +1653,10 @@ static void __intel_display_device_info_runtime_init(struct drm_i915_private *i9 > if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE) > display_runtime->has_hdcp = 0; > > - if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) > - display_runtime->fbc_mask = 0; > + if (DISPLAY_VER(i915) < 20) { According to bspec 50075 this bit actually went away in ADL-P. So we shouldn't be checking it on ADL-P, MTL, or BMG either. Matt > + if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) > + display_runtime->fbc_mask = 0; > + } > > if (DISPLAY_VER(i915) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE)) > display_runtime->has_dmc = 0; > -- > 2.25.1 >
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index f33062322c66..19aadf635077 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -1653,8 +1653,10 @@ static void __intel_display_device_info_runtime_init(struct drm_i915_private *i9 if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE) display_runtime->has_hdcp = 0; - if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) - display_runtime->fbc_mask = 0; + if (DISPLAY_VER(i915) < 20) { + if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) + display_runtime->fbc_mask = 0; + } if (DISPLAY_VER(i915) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE)) display_runtime->has_dmc = 0;