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Wed, 17 Nov 2021 09:50:43 -0500 (EST) From: Maxime Ripard To: Scott Branden , Nicolas Saenz Julienne , Rob Herring , Frank Rowand , Ray Jui , Florian Fainelli , Daniel Vetter , David Airlie , Maarten Lankhorst , Thomas Zimmermann , Maxime Ripard Cc: linux-rpi-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Dave Stevenson , Phil Elwell , Tim Gover , Dom Cobley , devicetree@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com Subject: [PATCH 1/5] dt-bindings: display: vc4: Add optional phandle to firmware Date: Wed, 17 Nov 2021 15:50:36 +0100 Message-Id: <20211117145040.334827-2-maxime@cerno.tech> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211117145040.334827-1-maxime@cerno.tech> References: <20211117145040.334827-1-maxime@cerno.tech> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211117_065050_431462_3C5F01E8 X-CRM114-Status: GOOD ( 11.27 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The firmware can free all the resources it was using to run the display engine that won't be needed once the kernel has taken over. Thus, we need a phandle to the firmware DT node to be able to send that message when relevant. Signed-off-by: Maxime Ripard --- .../devicetree/bindings/display/brcm,bcm2835-vc4.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml index 49a5e041aa49..18de6912b833 100644 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml @@ -21,6 +21,11 @@ properties: - brcm,bcm2835-vc4 - brcm,cygnus-vc4 + raspberrypi,firmware: + $ref: "/schemas/types.yaml#/definitions/phandle" + description: > + Phandle to the firmware node + required: - compatible