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From: Maxime Ripard <maxime@cerno.tech>
To: Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Maxime Ripard <maxime@cerno.tech>,
	Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Nicolas Saenz Julienne <nsaenz@kernel.org>,
	Daniel Vetter <daniel.vetter@intel.com>,
	David Airlie <airlied@linux.ie>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Phil Elwell <phil@raspberrypi.com>,
	Tim Gover <tim.gover@raspberrypi.com>,
	Dom Cobley <dom@raspberrypi.com>,
	linux-rpi-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	dri-devel@lists.freedesktop.org,
	bcm-kernel-feedback-list@broadcom.com
Subject: [PATCH v2 0/3] drm/vc4: Use the firmware to stop the display pipeline
Date: Fri,  3 Dec 2021 14:51:23 +0100	[thread overview]
Message-ID: <20211203135126.700165-1-maxime@cerno.tech> (raw)

Hi,

The VC4 driver has had limited support to disable the HDMI controllers and
pixelvalves at boot if the firmware has enabled them.

However, this proved to be limited, and a bit unreliable so a new firmware
command has been introduced some time ago to make it free all its resources and
disable any display output it might have enabled.

This series takes advantage of that command to call it once the transition from
simplefb to the KMS driver has been done.

Let me know what you think,
Maxime

---

Changes from v2:
  - Use of_find_compatible_node instead of a phandle
  - Use devm_rpi_firmware_get

Maxime Ripard (3):
  firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE
  drm/vc4: Remove conflicting framebuffers before callind bind_all
  drm/vc4: Notify the firmware when DRM is in charge

 drivers/gpu/drm/vc4/vc4_drv.c              | 27 ++++++++++++++++++----
 drivers/gpu/drm/vc4/vc4_drv.h              |  2 ++
 include/soc/bcm2835/raspberrypi-firmware.h |  1 +
 3 files changed, 26 insertions(+), 4 deletions(-)

-- 
2.33.1


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             reply	other threads:[~2021-12-03 13:53 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-03 13:51 Maxime Ripard [this message]
2021-12-03 13:51 ` [PATCH v2 1/3] firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE Maxime Ripard
2021-12-03 13:51 ` [PATCH v2 2/3] drm/vc4: Remove conflicting framebuffers before callind bind_all Maxime Ripard
2021-12-03 13:51 ` [PATCH v2 3/3] drm/vc4: Notify the firmware when DRM is in charge Maxime Ripard
2021-12-10  9:55   ` nicolas saenz julienne

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