From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH 4/4] ARM: tegra: roth: add display DT node Date: Tue, 22 Jul 2014 10:45:48 +0100 Message-ID: <20140722094548.GP17528@sirena.org.uk> References: <1404303560-32209-1-git-send-email-acourbot@nvidia.com> <1404303560-32209-5-git-send-email-acourbot@nvidia.com> <53B42B60.1000600@wwwdotorg.org> <53B4C9C0.4000605@nvidia.com> <53CD333F.2070805@wwwdotorg.org> <20140721211630.GA12076@mithrandir> <20140721225153.GJ17528@sirena.org.uk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="aRuUY7KzmetiZjaI" Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Alexandre Courbot Cc: Thierry Reding , Stephen Warren , Alexandre Courbot , Terje Bergstrom , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Ulf Hansson List-Id: dri-devel@lists.freedesktop.org --aRuUY7KzmetiZjaI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jul 22, 2014 at 01:39:51PM +0900, Alexandre Courbot wrote: > I also don't think that would do it - for many displays the power-on > sequence is not as simple as "switch all the regulators on". > Maybe what we would want is to have panel-simple allow panels to > provide a "probe" callback so they can request and manage any extra > resource they need. This would of course imply that custom > enable/disable and suspend/resume callbacks. Then the driver might not > be "simple" anymore, but IMHO it would not be that bad. This is starting to mirror the discussion about MMC/SDIO devices where the talk was of having a property on the device saying which power up scheme to use - added Ulf for that. --aRuUY7KzmetiZjaI Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJTzjLJAAoJELSic+t+oim9rIgP/3htcCCFA2hpukO16XqiGrqC huwFO2DCA5zohaX3MsZxwIcdz65tzq+bjdjVUdyJgQNQIFmGwklrv/pU37lyeo31 NhHtj7gNXrF21RUkLQsEmlZy0hkDLL5AhPRGN5ISJzyhFCx8sEm3gNR8NonB/mDX swqh+9HxBTET0QFSO/qtTO/H29zeBExwvA6fF9anJUJlCmjXuWdE3f7oTbg+GOvP 4Pj8i8F/gA+e4evSidtdtsWgBjQS4ECDaxAN1+X/uNi51MFcvZSQRus7Hnh6Qc/Y vOfB/GGZdYXRON7ha2zzpGzsB7urCN4QgHyaPWEmqhpjrw54RDUZRc/CRx1h/tcZ JfhVGfpriPJlS2mRqDsVvMD8suPGfo8kOsfgEajMSK4zuHZ49Eatkf8SwZG/Ow8b BaKLy1XGSU0NaZO+P7qvfu7Dp5HwvMKNIRjwJsMZGOzBEkyVK4Ms1EjfKO+Or2/3 jKPEG54V822ahzvQe7+TlNZXoCyOey+SKQSsF+iYurXdkKyMG/PlwaedUTIO/Zgo +fUOSngmeTd7BQAfqw1TVsRr/oDrEBckdIS8ZJdtVLvJLjQMCMhlUHmYI9VePrP1 rxMN75rcVSwgzQcLGNPfBZe2QxZ3ZDziMn3ntXwhruFUeKILDRJ8vx6X+DVGF0X/ 3C/nbZq29Uhx8O1WIwoR =lpi1 -----END PGP SIGNATURE----- --aRuUY7KzmetiZjaI--