From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Anholt Subject: Re: [PATCHv2 0/3] Intel FPGA VIP Frame Buffer II DRM Driver Date: Wed, 03 May 2017 13:28:47 -0700 Message-ID: <87shklznuo.fsf@eliezer.anholt.net> References: <1493086006-4392-1-git-send-email-hean.loong.ong@intel.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Return-path: In-Reply-To: <1493086006-4392-1-git-send-email-hean.loong.ong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: daniel.vetter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, dinguyen-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: hean.loong.ong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, tien.hock.loh-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: devicetree@vger.kernel.org --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable hean.loong.ong-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org writes: > From: Ong Hean Loong > > Hi, > > The new Intel Arria10 SOC FPGA devkit has a Display Port IP component=20 > which requires a new driver. This is a virtual driver in which the > FGPA hardware would enable the Display Port based on the information > and data provided from the DRM frame buffer from the OS. Basically all > all information with reagrds to resolution and bits per pixel are > pre-configured on the FPGA design and these information are fed to > the driver via the device tree information as part of the hardware=20 > information. I started reviewing the code, but I want to make sure I understand what's going on: This IP core isn't displaying contents from system memory on some sort of actual physical display, right? It's a core that takes some input video stream (not described in the DT or in this driver) and stores it to memory? --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEE/JuuFDWp9/ZkuCBXtdYpNtH8nugFAlkKPX8ACgkQtdYpNtH8 nuixDRAAqrbNjJhk07JjPMpGvtEt92wS0gfIfORJGtWcoB3/9ePweM5lvFTey+RA 153Y8WAQ2qv93VtxArdmIOcFSmx7wtimilWHq6NL//I01aB1MGRiC2Z3iRDk5rER g2fDdMO6mQCx4YFW1jr7bcDmgbc7DYW4L5QvwvS4L/gxic1374ixQngs0aNh/js8 FTTCAvATFecwnUUtzMd/HY96PULr4FDKcn84Yqq5xD1yKWUIKqZz2qbnFRAkx9dJ 7EeQOQjtigzNVIxEfXuz/AmpMi9epiCq4xPi2lwaPgeiDkFiAThk3PIi5aFB7V1h p0GTcmEVMLzIw4jioqCfHPr7NU7Lqo0VgY1yrY/zL+6ICfwhcp0m12ZJI0sAdpm0 3qE3RFk7Cp9aEL5CDb5oDonVGTEPgM9wks9MXSwQrhPd79OZ2SrUa2rvE91r+Rpc 9XitFV1rXQmu736hTBSUmaj8omkb31Hm6pTnNkEONXB3vBTxc1cx1WIfaGSO+g1Q n08VnqccaJS6aaJzW/c+fJnkR+W7TzhsuAE17PmuZ4ea351NORfopzrTVgXDMSc5 uzBRfuoQFmav4lBI7wf6+ACcaSQ2lZIYmoyaxlbkcbuNYHljUfnOtELjBmybdtCg LTW86Eq/+dD2859PzJ6TzoR5vLNrKmtu8YCW3GZtBiIsE6qzgVE= =KdYS -----END PGP SIGNATURE----- --=-=-=-- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html