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[66.90.148.213]) by smtp.gmail.com with ESMTPSA id e14sm2505203oow.3.2021.11.29.14.49.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Nov 2021 14:49:52 -0800 (PST) Received: (nullmailer pid 755875 invoked by uid 1000); Mon, 29 Nov 2021 22:49:51 -0000 Date: Mon, 29 Nov 2021 16:49:51 -0600 From: Rob Herring To: Maxime Ripard Cc: Scott Branden , Nicolas Saenz Julienne , Frank Rowand , Ray Jui , Florian Fainelli , Daniel Vetter , David Airlie , Maarten Lankhorst , Thomas Zimmermann , 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: Re: [PATCH 1/5] dt-bindings: display: vc4: Add optional phandle to firmware Message-ID: References: <20211117145040.334827-1-maxime@cerno.tech> <20211117145040.334827-2-maxime@cerno.tech> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20211117145040.334827-2-maxime@cerno.tech> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211129_144954_621075_1F0A2DB1 X-CRM114-Status: GOOD ( 19.65 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Nov 17, 2021 at 03:50:36PM +0100, Maxime Ripard wrote: > 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. Why? Just use of_find_compatible_node(). > > 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 > > -- > 2.33.1 > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel