On Mon, 24 Oct 2016, Imre Deak <[email protected]> wrote: > As for external DP sink and branch devices read and print the DP > descriptor for eDP and LSPCON devices as well to aid debugging. > > v2: > - Split out this change to a separate patch. (Jani) > > Cc: Jani Nikula <[email protected]> > Signed-off-by: Imre Deak <[email protected]>
Reviewed-by: Jani Nikula <[email protected]> > --- > drivers/gpu/drm/i915/intel_dp.c | 4 +++- > drivers/gpu/drm/i915/intel_drv.h | 1 + > drivers/gpu/drm/i915/intel_lspcon.c | 2 ++ > 3 files changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c > index 62c5512..043993f 100644 > --- a/drivers/gpu/drm/i915/intel_dp.c > +++ b/drivers/gpu/drm/i915/intel_dp.c > @@ -1461,7 +1461,7 @@ __intel_dp_read_desc(struct intel_dp *intel_dp, struct > intel_dp_desc *desc) > sizeof(*desc); > } > > -static bool intel_dp_read_desc(struct intel_dp *intel_dp) > +bool intel_dp_read_desc(struct intel_dp *intel_dp) > { > struct intel_dp_desc *desc = &intel_dp->desc; > bool oui_sup = intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & > @@ -3519,6 +3519,8 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp) > if (!intel_dp_read_dpcd(intel_dp)) > return false; > > + intel_dp_read_desc(intel_dp); > + > if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11) > dev_priv->no_aux_handshake = intel_dp->dpcd[DP_MAX_DOWNSPREAD] & > DP_NO_AUX_HANDSHAKE_LINK_TRAINING; > diff --git a/drivers/gpu/drm/i915/intel_drv.h > b/drivers/gpu/drm/i915/intel_drv.h > index ff9d2dc..a79cbad 100644 > --- a/drivers/gpu/drm/i915/intel_drv.h > +++ b/drivers/gpu/drm/i915/intel_drv.h > @@ -1462,6 +1462,7 @@ static inline unsigned int > intel_dp_unused_lane_mask(int lane_count) > } > > bool intel_dp_read_dpcd(struct intel_dp *intel_dp); > +bool intel_dp_read_desc(struct intel_dp *intel_dp); > > /* intel_dp_aux_backlight.c */ > int intel_dp_aux_init_backlight_funcs(struct intel_connector > *intel_connector); > diff --git a/drivers/gpu/drm/i915/intel_lspcon.c > b/drivers/gpu/drm/i915/intel_lspcon.c > index 23b817a..c5f278b 100644 > --- a/drivers/gpu/drm/i915/intel_lspcon.c > +++ b/drivers/gpu/drm/i915/intel_lspcon.c > @@ -136,6 +136,8 @@ bool lspcon_init(struct intel_digital_port > *intel_dig_port) > return false; > } > > + intel_dp_read_desc(dp); > + > DRM_DEBUG_KMS("Success: LSPCON init\n"); > return true; > } -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
