| Message ID | 1435580756-20154-10-git-send-email-ville.syrjala@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com> On 6/29/2015 5:55 PM, ville.syrjala@linux.intel.com wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > The BIOS maybe leave the DSI PLL enabled even if the port is disabled. > The PLL doesn't seem to like being reconfigured while it's enabled so > make sure it's disabled before doing that. > > The better fix would be to expose all PLLs independently of their ports > so that we could disable any unused ones during the sanitize phase. But > this seems like an OK short term solution. > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> > --- > drivers/gpu/drm/i915/intel_dsi.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c > index 92bb252..07c4bb3 100644 > --- a/drivers/gpu/drm/i915/intel_dsi.c > +++ b/drivers/gpu/drm/i915/intel_dsi.c > @@ -907,6 +907,7 @@ static void intel_dsi_pre_pll_enable(struct intel_encoder *encoder) > > intel_dsi_prepare(encoder); > > + vlv_disable_dsi_pll(encoder); > vlv_enable_dsi_pll(encoder); > } >
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c index 92bb252..07c4bb3 100644 --- a/drivers/gpu/drm/i915/intel_dsi.c +++ b/drivers/gpu/drm/i915/intel_dsi.c @@ -907,6 +907,7 @@ static void intel_dsi_pre_pll_enable(struct intel_encoder *encoder) intel_dsi_prepare(encoder); + vlv_disable_dsi_pll(encoder); vlv_enable_dsi_pll(encoder); }