Hi Ville, I have revised the patch from DRM_ERROR to DRM_DEBUG, could you please review? https://patchwork.freedesktop.org/patch/332806/?series=66837&rev=3 Thanks, -----Original Message----- From: S, Srinivasan Sent: Thursday, September 19, 2019 7:22 PM To: 'Ville Syrjälä' <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Navare, Manasi D <manasi.d.navare@xxxxxxxxx>; 'intel-gfx@xxxxxxxxxxxxxxxxxxxxx' <intel-gfx@xxxxxxxxxxxxxxxxxxxxx>; 'dri-devel@xxxxxxxxxxxxxxxxxxxxx' <dri-devel@xxxxxxxxxxxxxxxxxxxxx> Subject: RE: [PATCH] drm/i915/dp: Fix DP MST error after unplugging TypeC cable Then it's better that, could we change it to DRM_DEBUG_KMS("failed to update payload %d\n", ret); instead of DRM_ERROR("failed to update payload %d\n", ret);, without any connector status check, would that be fine? Regards, -----Original Message----- From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Sent: Thursday, September 19, 2019 5:34 PM To: S, Srinivasan <srinivasan.s@xxxxxxxxx> Cc: Navare, Manasi D <manasi.d.navare@xxxxxxxxx>; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx Subject: Re: [PATCH] drm/i915/dp: Fix DP MST error after unplugging TypeC cable On Thu, Sep 19, 2019 at 07:23:30AM +0000, S, Srinivasan wrote: > Would the following be appropriate fix? > > if (connector || connector->base.status == connector_status_connected) { > ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); > if (ret) { > DRM_ERROR("failed to update payload %d\n", ret); > } > } The whole connector->status check is racy. IMO don't do it. > > Regards, > -----Original Message----- > From: dri-devel <dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of > Manasi Navare > Sent: Wednesday, September 18, 2019 11:55 PM > To: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Cc: S, Srinivasan <srinivasan.s@xxxxxxxxx>; > intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: [PATCH] drm/i915/dp: Fix DP MST error after unplugging > TypeC cable > > On Wed, Sep 18, 2019 at 09:11:36PM +0300, Ville Syrjälä wrote: > > On Wed, Sep 18, 2019 at 10:50:39AM -0700, Manasi Navare wrote: > > > On Wed, Sep 18, 2019 at 07:09:43AM +0530, srinivasan.s@xxxxxxxxx wrote: > > > > From: Srinivasan S <srinivasan.s@xxxxxxxxx> > > > > > > > > This patch avoids DP MST payload error message in dmesg, as it > > > > is trying to read the payload from the disconnected DP MST device. > > > > After the unplug the connector status is disconnected and we > > > > should not be looking for the payload and hence remove the error and throw the warning. > > > > > > > > This details can be found in: > > > > https://bugs.freedesktop.org/show_bug.cgi?id=111632 > > > > > > Please add this link as Bugzilla: > > > https://bugs.freedesktop.org/show_bug.cgi?id=111632 after the Sign > > > off statement > > > > > > > > > > > Signed-off-by: Srinivasan S <srinivasan.s@xxxxxxxxx> > > > > --- > > > > drivers/gpu/drm/i915/display/intel_dp_mst.c | 7 ++++++- > > > > 1 file changed, 6 insertions(+), 1 deletion(-) > > > > > > > > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c > > > > b/drivers/gpu/drm/i915/display/intel_dp_mst.c > > > > index eeeb3f933aa4..5b2278fdf675 100644 > > > > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c > > > > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c > > > > @@ -215,7 +215,12 @@ static void intel_mst_disable_dp(struct > > > > intel_encoder *encoder, > > > > > > > > ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr); > > > > if (ret) { > > > > - DRM_ERROR("failed to update payload %d\n", ret); > > > > + if (!connector || > > > > + connector->base.status != connector_status_connected) { > > > > + DRM_WARN("DP MST disconnect\n"); > > > > > > May be adding this check before calling drm_dp_update_payload_part1() is a better idea? > > > If the connector is disconnected, why update payload? > > > > > > Jani, Ville, thoughts? > > > > Or just convert it to a debug? > > Sure that will work, but do we really want to update the payload if the connector status is disconnected. > So shouldnt checking that before calling the function be a better fix? > > Manasi > > > > > > > > > Regards > > > Manasi > > > > > > > + } else { > > > > + DRM_ERROR("failed to update payload %d\n", ret); > > > > + } > > > > } > > > > if (old_crtc_state->has_audio) > > > > intel_audio_codec_disable(encoder, > > > > -- > > > > 2.7.4 > > > > > > > > -- > > Ville Syrjälä > > Intel > > _______________________________________________ > > dri-devel mailing list > > dri-devel@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/dri-devel > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Ville Syrjälä Intel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
