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[24.223.123.72]) by smtp.gmail.com with ESMTPSA id p4-v6sm51678587oig.43.2018.07.16.14.14.41 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 16 Jul 2018 14:14:41 -0700 (PDT) Date: Mon, 16 Jul 2018 15:14:40 -0600 From: Rob Herring To: Damian Kos Cc: David Airlie , Mark Rutland , Gustavo Padovan , Maarten Lankhorst , Sean Paul , Sandy Huang , Heiko =?iso-8859-1?Q?St=FCbner?= , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, ltyrala@cadence.com, pgaj@cadence.com, stelford@cadence.com Subject: Re: [PATCH 10/12] dt-bindings: drm/bridge: Document Cadence MHDP bridge bindings Message-ID: <20180716211440.GA29964@rob-hp-laptop> References: <1530612152-27555-1-git-send-email-dkos@cadence.com> <1530612152-27555-11-git-send-email-dkos@cadence.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1530612152-27555-11-git-send-email-dkos@cadence.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 03, 2018 at 11:02:21AM +0100, Damian Kos wrote: > Document the bindings used for the Cadence MHDP DPI/DP bridge. > > Signed-off-by: Damian Kos > --- > .../bindings/display/bridge/cdns,mhdp.txt | 39 ++++++++++++++++++++ > 1 files changed, 39 insertions(+), 0 deletions(-) > create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt > > diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt > new file mode 100644 > index 0000000..d872e26 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt > @@ -0,0 +1,39 @@ > +Cadence MHDP bridge > +========================== > + > +The Cadence MHDP bridge is a DPI to DP bridge. > + > +Required properties: > + - compatible: should be "cdns,mhdp", Not very specific. Only 1 version of this block? > + - reg: physical base address and length of the controller's registers, > + - clocks: DP bridge clock, it's used by the IP to know how to translate > + a number of clock cycles into a time (which is used to comply > + with DP standard timings and delays), > + - clock-names: must be "clk", Not a useful name. With only 1 clock, you can just drop this. > + > +Required subnodes: > + - ports: Ports as described in Documentation/devictree/bindings/graph.txt > + Currently contains a single input port at address 0 representing the DPI > + input. Currently? You should have a port connecting to a connector node. > + Port 0 should be connected to a DPI encoder output. > + > +Example: > + > + mhdp: mhdp@0xf0fb000000 { dp-bridge@f0fb000000 > + compatible = "cdns,mhdp"; > + reg = <0xf0 0xfb000000 0x0 0x1000000>; > + clocks = <&mhdp_clock>; > + clock-names = "clk"; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + mhdp0_dpi_input: endpoint { > + remote-endpoint = <&xxx_dpi_output>; > + }; > + }; > + }; > + }; > -- > 1.7.1 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html