On Wed, Jul 27, 2022 at 06:34:09PM -0700, Radhakrishna Sripada wrote: > From: Clint Taylor <clinton.a.taylor@xxxxxxxxx> > > MTL has a fixed rawclk of 38400Mhz. Register does not need to be > reprogrammed. > > Bspec: 49304 > > Signed-off-by: Clint Taylor <clinton.a.taylor@xxxxxxxxx> > --- > drivers/gpu/drm/i915/display/intel_cdclk.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c > index 86a22c3766e5..390a198b0011 100644 > --- a/drivers/gpu/drm/i915/display/intel_cdclk.c > +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c > @@ -3036,6 +3036,13 @@ u32 intel_read_rawclk(struct drm_i915_private *dev_priv) > > if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) > freq = dg1_rawclk(dev_priv); > + else if (INTEL_PCH_TYPE(dev_priv) >= PCH_MTP) > + /* > + * MTL always uses a 38.4 MHz rawclk. The bspec tells us Indentation isn't quite right here. Patch is also missing your s-o-b. With those fixed, Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx> > + * "RAWCLK_FREQ defaults to the values for 38.4 and does > + * not need to be programmed." > + */ > + freq = 38400; > else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) > freq = cnp_rawclk(dev_priv); > else if (HAS_PCH_SPLIT(dev_priv)) > -- > 2.25.1 > -- Matt Roper Graphics Software Engineer VTT-OSGC Platform Enablement Intel Corporation
