linux-arm-msm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Stephen Boyd <swboyd@chromium.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Rob Clark <robdclark@gmail.com>,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Saravana Kannan <saravanak@google.com>
Subject: [PATCH 0/7] component: Make into an aggregate bus
Date: Wed, 19 May 2021 17:25:12 -0700	[thread overview]
Message-ID: <20210520002519.3538432-1-swboyd@chromium.org> (raw)

This series is from discussion we had on reordering the device lists for
drm shutdown paths[1]. I've introduced an 'aggregate' bus that we put
the aggregate device onto and then we probe the device once all the
components are probed and call component_add(). The probe/remove hooks
are where the bind/unbind calls go, and then a shutdown hook is added
that can be used to shutdown the drm display pipeline at the right time.

This works for me on my sc7180 board, but I'm currently struggling with
the last patch where we migrate the msm driver. It runs into a runtime
PM problem where the parent device isn't runtime PM enabled yet. I'm
still trying to figure out a clean solution there. Moving runtime PM
around breaks boot and I think that's because the power domain is off.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Saravana Kannan <saravanak@google.com>

[1] https://lore.kernel.org/r/20210508074118.1621729-1-swboyd@chromium.org

Stephen Boyd (7):
  component: Drop 'dev' argument to component_match_realloc()
  component: Rename 'dev' to 'parent'
  component: Introduce struct aggregate_device
  component: Introduce the aggregate bus_type
  component: Use dev.parent instead of adev->parent
  component: Move struct aggregate_device out to header file
  drm/msm: Migrate to aggregate driver

 drivers/base/component.c      | 614 ++++++++++++++++++++++------------
 drivers/gpu/drm/msm/msm_drv.c |  47 +--
 include/linux/component.h     |  73 +++-
 3 files changed, 487 insertions(+), 247 deletions(-)


base-commit: 6efb943b8616ec53a5e444193dccf1af9ad627b5
-- 
https://chromeos.dev


             reply	other threads:[~2021-05-20  0:25 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20  0:25 Stephen Boyd [this message]
2021-05-20  0:25 ` [PATCH 1/7] component: Drop 'dev' argument to component_match_realloc() Stephen Boyd
2021-05-20  0:25 ` [PATCH 2/7] component: Rename 'dev' to 'parent' Stephen Boyd
2021-05-20  0:25 ` [PATCH 3/7] component: Introduce struct aggregate_device Stephen Boyd
2021-05-20 20:20   ` Saravana Kannan
2021-05-24  6:01     ` Stephen Boyd
2021-05-20  0:25 ` [PATCH 4/7] component: Introduce the aggregate bus_type Stephen Boyd
2021-05-20  0:25 ` [PATCH 5/7] component: Use dev.parent instead of adev->parent Stephen Boyd
2021-05-20  0:25 ` [PATCH 6/7] component: Move struct aggregate_device out to header file Stephen Boyd
2021-05-20  0:25 ` [PATCH 7/7] drm/msm: Migrate to aggregate driver Stephen Boyd
2021-05-20 19:58   ` Daniel Vetter
2021-05-20 20:22     ` Saravana Kannan
2021-05-24  6:45     ` Stephen Boyd
2021-05-20  1:27 ` [PATCH 0/7] component: Make into an aggregate bus Saravana Kannan
2021-05-20  1:41   ` Stephen Boyd
2021-05-20 19:30     ` Saravana Kannan
2021-05-20 20:03     ` Daniel Vetter

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210520002519.3538432-1-swboyd@chromium.org \
    --to=swboyd@chromium.org \
    --cc=daniel.vetter@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=freedreno@lists.freedesktop.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rafael@kernel.org \
    --cc=rmk+kernel@arm.linux.org.uk \
    --cc=robdclark@gmail.com \
    --cc=saravanak@google.com \
    --subject='Re: [PATCH 0/7] component: Make into an aggregate bus' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).