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[108.49.102.102]) by smtp.gmail.com with ESMTPSA id b19sm620360qkc.7.2021.08.18.15.03.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Aug 2021 15:03:37 -0700 (PDT) Message-ID: <1f5f00e0042e48bc3420c3f17457e82d83e68567.camel@redhat.com> Subject: Re: [PATCH 0/8] drm + usb-type-c: Add support for out-of-band hotplug notification (v4 resend) From: Lyude Paul To: Hans de Goede , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Imre Deak , Greg Kroah-Hartman , Guenter Roeck , Heikki Krogerus Cc: Daniel Vetter , David Airlie , intel-gfx , dri-devel@lists.freedesktop.org, linux-usb@vger.kernel.org Date: Wed, 18 Aug 2021 18:03:35 -0400 In-Reply-To: <20210817215201.795062-1-hdegoede@redhat.com> References: <20210817215201.795062-1-hdegoede@redhat.com> Organization: Red Hat Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.38.4 (3.38.4-1.fc33) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This looks great to me! Wasn't much to comment on here as most of this looks fine to me. For the whole series: Reviewed-by: Lyude Paul This will be quite interesting to try getting working for nouveau On Tue, 2021-08-17 at 23:51 +0200, Hans de Goede wrote: > Hi all, > > Here is a rebased-resend of v4 of my patchset making DP over Type-C work on > devices where the Type-C controller does not drive the HPD pin on the GPU, > but instead we need to forward HPD events from the Type-C controller to > the DRM driver. > > Changes in v4 resend: > - Rebase on top of latest drm-tip > > Changes in v4: > - Rebase on top of latest drm-tip > - Add forward declaration for struct fwnode_handle to drm_crtc_internal.h >   (fixes warning reported by kernel test robot ) > - Add Heikki's Reviewed-by to patch 7 & 8 > - Add Heikki's Tested-by to the series > > Changes in v3: > - Base on top of latest drm-tip, which should fix the CI being unable to >   apply (and thus to test) the patches > - Make intel_acpi_assign_connector_fwnodes() take a ref on the fwnode >   it stores in connector->fwnode and have drm_connector_cleanup() put >   this reference > - Drop data argument from drm_connector_oob_hotplug_event() > - Make the Type-C DP altmode code only call > drm_connector_oob_hotplug_event() >   when the HPD bit in the status vdo changes > - Drop the platform/x86/intel_cht_int33fe: Correct "displayport" fwnode >   reference patch, this will be merged independently through the pdx86 tree > > Changes in v2: > - Replace the bogus "drm/connector: Make the drm_sysfs connector->kdev >   device hold a reference to the connector" patch with: >   "drm/connector: Give connector sysfs devices there own device_type" >   the new patch is a dep for patch 2/9 see the patches > > - Stop using a class-dev-iter, instead at a global connector list >   to drm_connector.c and use that to find the connector by the fwnode, >   similar to how we already do this in drm_panel.c and drm_bridge.c > > - Make drm_connector_oob_hotplug_event() take a fwnode pointer as >   argument, rather then a drm_connector pointer and let it do the >   lookup itself. This allows making drm_connector_find_by_fwnode() a >   drm-internal function and avoids code outside the drm subsystem >   potentially holding on the a drm_connector reference for a longer >   period. > > This series not only touches drm subsys files but it also touches > drivers/usb/typec/altmodes/typec_displayport.c, that file usually > does not see a whole lot of changes. So I believe it would be best > to just merge the entire series through drm-misc, Assuming we can > get an ack from Greg for merging the typec_displayport.c changes > this way. > > Regards, > > Hans > > Hans de Goede (7): >   drm/connector: Give connector sysfs devices there own device_type >   drm/connector: Add a fwnode pointer to drm_connector and register with >     ACPI (v2) >   drm/connector: Add drm_connector_find_by_fwnode() function (v3) >   drm/connector: Add support for out-of-band hotplug notification (v3) >   drm/i915/dp: Add support for out-of-bound hotplug events >   usb: typec: altmodes/displayport: Make dp_altmode_notify() more >     generic >   usb: typec: altmodes/displayport: Notify drm subsys of hotplug events > > Heikki Krogerus (1): >   drm/i915: Associate ACPI connector nodes with connector entries (v2) > >  drivers/gpu/drm/drm_connector.c              | 79 ++++++++++++++++++ >  drivers/gpu/drm/drm_crtc_internal.h          |  2 + >  drivers/gpu/drm/drm_sysfs.c                  | 87 +++++++++++++++++--- >  drivers/gpu/drm/i915/display/intel_acpi.c    | 46 +++++++++++ >  drivers/gpu/drm/i915/display/intel_acpi.h    |  3 + >  drivers/gpu/drm/i915/display/intel_display.c |  1 + >  drivers/gpu/drm/i915/display/intel_dp.c      | 12 +++ >  drivers/usb/typec/altmodes/Kconfig           |  1 + >  drivers/usb/typec/altmodes/displayport.c     | 58 ++++++++----- >  include/drm/drm_connector.h                  | 25 ++++++ >  10 files changed, 279 insertions(+), 35 deletions(-) > -- Cheers, Lyude Paul (she/her) Software Engineer at Red Hat