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From: Maxime Ripard <maxime@cerno.tech>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Maxime Ripard <maxime@cerno.tech>,
	Daniel Vetter <daniel.vetter@intel.com>,
	David Airlie <airlied@linux.ie>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Scott Branden <sbranden@broadcom.com>,
	Nicolas Saenz Julienne <nsaenz@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Frank Rowand <frowand.list@gmail.com>,
	Ray Jui <rjui@broadcom.com>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>,
	Phil Elwell <phil@raspberrypi.com>,
	Tim Gover <tim.gover@raspberrypi.com>,
	Dom Cobley <dom@raspberrypi.com>,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	linux-rpi-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Subject: [PATCH RESEND v4 v4 0/4] drm/vc4: Use the firmware to stop the display pipeline
Date: Mon, 13 Dec 2021 17:26:31 +0100	[thread overview]
Message-ID: <20211213162635.252582-1-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 v3:
  - Support nomodeset

Changes from v2:
  - Switch back to rpi_firmware_get / rpi_firmware_put
  - Moved the rpi_firmware pointer to a local variable

Changes from v1:
  - Use of_find_compatible_node instead of a phandle
  - Use devm_rpi_firmware_get

Maxime Ripard (4):
  firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE
  drm/vc4: Support nomodeset
  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              | 50 ++++++++++++++++++----
 include/soc/bcm2835/raspberrypi-firmware.h |  1 +
 2 files changed, 42 insertions(+), 9 deletions(-)

-- 
2.33.1


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             reply	other threads:[~2021-12-13 16:28 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-13 16:26 Maxime Ripard [this message]
2021-12-13 16:26 ` [PATCH RESEND v4 v4 1/4] firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE Maxime Ripard
2021-12-13 16:26 ` [PATCH RESEND v4 v4 2/4] drm/vc4: Support nomodeset Maxime Ripard
2021-12-14  8:30   ` Javier Martinez Canillas
2021-12-14  8:57     ` Thomas Zimmermann
2021-12-13 16:26 ` [PATCH RESEND v4 v4 3/4] drm/vc4: Remove conflicting framebuffers before callind bind_all Maxime Ripard
2021-12-13 16:26 ` [PATCH RESEND v4 v4 4/4] drm/vc4: Notify the firmware when DRM is in charge Maxime Ripard

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