From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH 02/12] drm: sun4i: Add support for enabling DDC I2C bus to dw_hdmi glue Date: Mon, 8 Apr 2019 09:23:38 +0200 Message-ID: <20190408072338.3urcotemju3qi2un@flea> References: <20190405234514.6183-1-megous@megous.com> <20190405234514.6183-3-megous@megous.com> Reply-To: maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="g4sjhwitnevemn7z" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Content-Disposition: inline In-Reply-To: <20190405234514.6183-3-megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org Cc: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Chen-Yu Tsai , Rob Herring , Linus Walleij , David Airlie , Daniel Vetter , Mark Rutland , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , Kalle Valo , Naveen Gupta , dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev@v List-Id: devicetree@vger.kernel.org --g4sjhwitnevemn7z Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline On Sat, Apr 06, 2019 at 01:45:04AM +0200, megous-5qf/QAjKc83QT0dZR+AlfA@public.gmane.org wrote: > From: Ondrej Jirman > > Orange Pi 3 board requires enabling DDC I2C bus via some GPIO connected > transistors, before it can be used. Model this as a power supply for DDC > (via regulator framework). > > Signed-off-by: Ondrej Jirman The DDC bus itself is usually attached to the HDMI connector, so it would make sense to make the supply also a property of the connector. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com --g4sjhwitnevemn7z--