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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id i6sm5902042oto.62.2020.02.25.10.15.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Feb 2020 10:15:01 -0800 (PST) Received: (nullmailer pid 601 invoked by uid 1000); Tue, 25 Feb 2020 18:15:00 -0000 Date: Tue, 25 Feb 2020 12:15:00 -0600 From: Rob Herring To: Maxime Ripard Subject: Re: [PATCH 02/89] dt-bindings: i2c: brcmstb: Add BCM2711 BSC/AUTO-I2C binding Message-ID: <20200225181500.GA538@bogus> References: <9e427ff22fa40b7146b44aee6468559499deb1f1.1582533919.git-series.maxime@cerno.tech> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <9e427ff22fa40b7146b44aee6468559499deb1f1.1582533919.git-series.maxime@cerno.tech> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200225_101503_215436_F9952598 X-CRM114-Status: GOOD ( 15.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Tim Gover , Dave Stevenson , Wolfram Sang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Eric Anholt , bcm-kernel-feedback-list@broadcom.com, Kamal Dasu , Maxime Ripard , Phil Elwell , Nicolas Saenz Julienne , linux-i2c@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 24 Feb 2020 10:06:04 +0100, Maxime Ripard wrote: > The HDMI blocks in the BCM2771 have an i2c controller to retrieve the > EDID. This block is split into two parts, the BSC and the AUTO_I2C, > lying in two separate register areas. > > The AUTO_I2C block has a mailbox-like interface and will take away the > BSC control from the CPU if enabled. However, the BSC is the actually > the same controller than the one supported by the brcmstb driver, and > the AUTO_I2C doesn't really bring any immediate benefit. > > We can model it in the DT as a single device with two register range, > which will allow us to use or or the other in the driver without > changing anything in the DT. > > Cc: Kamal Dasu > Cc: Florian Fainelli > Cc: Rob Herring > Cc: Wolfram Sang > Cc: bcm-kernel-feedback-list@broadcom.com > Cc: linux-i2c@vger.kernel.org > Cc: devicetree@vger.kernel.org > Signed-off-by: Maxime Ripard > --- > Documentation/devicetree/bindings/i2c/brcm,brcmstb-i2c.yaml | 40 ++++++- > 1 file changed, 39 insertions(+), 1 deletion(-) > Reviewed-by: Rob Herring _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel