[PATCH v5 00/10] drm/hdcp: Pull HDCP auth/exchange/check into helpers

[Sean Paul]

On Tue, Apr 12, 2022 at 09:41:35AM -0400, Rodrigo Vivi wrote:
> On Mon, Apr 11, 2022 at 08:47:29PM +0000, Sean Paul wrote:
> > From: Sean Paul <seanpaul at chromium.org>
> > 
> > Rebased set from November. Fixed a nit from Stephen in the msm patch and
> > moved hdcp registers into the trogdor dtsi file to avoid differences
> > with sc7180-based windows devices. The set is 4 patches lighter since
> > some of the changes were accepted into msm.
> > 
> > I'm still waiting for Intel review of the first 7 patches. Rodrigo/Jani,
> > would you please provide your input so we can move forward with this
> > set?
> 
> I'm a bit concerned with patches 4 and 7. It is hard to map the removals
> and additions and there are some changes that looks like changing behaviors,
> but end up not being clear in the big patch. Also with big patch it is prune
> to the rebasing and backport conflicts.

I had the same concerns when I was writing this. I originally had it split up,
but it seemed really cluttered with 2 sets of helpers (intel-internal + drm)
that worked slightly differently.

I'll try again now that some time has passed, perhaps a fresh look will help.

Sean

> 
> Would be possible to split some work in moving individual functions from i915
> to drm little by little with smaller patches?
> 
> But thank you for this great work. It is also good to align our drm drivers.
> 
> Thanks,
> Rodrigo.
> 
> > 
> > Thanks,
> > 
> > Sean
> > 
> > Link: https://patchwork.freedesktop.org/series/94623/ #v1
> > Link: https://patchwork.freedesktop.org/series/94713/ #v2
> > Link: https://patchwork.freedesktop.org/series/94712/ #v3
> > Link: https://patchwork.freedesktop.org/series/94712/ #v4
> > 
> > Sean Paul (10):
> >   drm/hdcp: Add drm_hdcp_atomic_check()
> >   drm/hdcp: Avoid changing crtc state in hdcp atomic check
> >   drm/hdcp: Update property value on content type and user changes
> >   drm/hdcp: Expand HDCP helper library for enable/disable/check
> >   drm/i915/hdcp: Consolidate HDCP setup/state cache
> >   drm/i915/hdcp: Retain hdcp_capable return codes
> >   drm/i915/hdcp: Use HDCP helpers for i915
> >   dt-bindings: msm/dp: Add bindings for HDCP registers
> >   arm64: dts: qcom: sc7180: Add support for HDCP in dp-controller
> >   drm/msm: Implement HDCP 1.x using the new drm HDCP helpers
> > 
> >  .../bindings/display/msm/dp-controller.yaml   |    7 +-
> >  arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi  |    8 +
> >  arch/arm64/boot/dts/qcom/sc7180.dtsi          |    6 +-
> >  drivers/gpu/drm/drm_hdcp.c                    | 1197 ++++++++++++++++-
> >  drivers/gpu/drm/i915/display/intel_atomic.c   |    7 +-
> >  drivers/gpu/drm/i915/display/intel_ddi.c      |   29 +-
> >  .../drm/i915/display/intel_display_debugfs.c  |   11 +-
> >  .../drm/i915/display/intel_display_types.h    |   58 +-
> >  drivers/gpu/drm/i915/display/intel_dp_hdcp.c  |  345 ++---
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c   |   17 +-
> >  drivers/gpu/drm/i915/display/intel_hdcp.c     | 1011 +++-----------
> >  drivers/gpu/drm/i915/display/intel_hdcp.h     |   36 +-
> >  drivers/gpu/drm/i915/display/intel_hdmi.c     |  256 ++--
> >  drivers/gpu/drm/msm/Makefile                  |    1 +
> >  drivers/gpu/drm/msm/dp/dp_debug.c             |   46 +-
> >  drivers/gpu/drm/msm/dp/dp_debug.h             |    6 +-
> >  drivers/gpu/drm/msm/dp/dp_display.c           |   46 +-
> >  drivers/gpu/drm/msm/dp/dp_display.h           |    5 +
> >  drivers/gpu/drm/msm/dp/dp_drm.c               |   68 +-
> >  drivers/gpu/drm/msm/dp/dp_drm.h               |    5 +
> >  drivers/gpu/drm/msm/dp/dp_hdcp.c              |  453 +++++++
> >  drivers/gpu/drm/msm/dp/dp_hdcp.h              |   27 +
> >  drivers/gpu/drm/msm/dp/dp_parser.c            |   20 +-
> >  drivers/gpu/drm/msm/dp/dp_parser.h            |    4 +
> >  drivers/gpu/drm/msm/dp/dp_reg.h               |   32 +-
> >  drivers/gpu/drm/msm/msm_atomic.c              |   15 +
> >  include/drm/drm_hdcp.h                        |  194 +++
> >  27 files changed, 2582 insertions(+), 1328 deletions(-)
> >  create mode 100644 drivers/gpu/drm/msm/dp/dp_hdcp.c
> >  create mode 100644 drivers/gpu/drm/msm/dp/dp_hdcp.h
> > 
> > -- 
> > Sean Paul, Software Engineer, Google / Chromium OS
> > 

-- 
Sean Paul, Software Engineer, Google / Chromium OS