From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Depreciated spi_master.transfer and "prepared spi messages" for an optimized pipelined-SPI-DMA-driver Date: Mon, 11 Nov 2013 11:18:42 +0000 Message-ID: <20131111111842.GE2674@sirena.org.uk> References: <72D635F5-4229-4D78-8AA3-1392D5D80127@sperl.org> <20131107203127.GB2493@sirena.org.uk> <86AE15B6-05AF-4EFF-8B8F-10806A7C148B@sperl.org> <20131108161957.GP2493@sirena.org.uk> <5F70E708-89B9-4DCF-A31A-E688BAA0E062@sperl.org> <20131108180934.GQ2493@sirena.org.uk> <20131109183056.GU2493@sirena.org.uk> <20131110110524.GA878@sirena.org.uk> <3361A01A-C7D0-4689-AFBD-085D3E62A67C@sperl.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="xA/XKXTdy9G3iaIz" Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Martin Sperl Return-path: Content-Disposition: inline In-Reply-To: <3361A01A-C7D0-4689-AFBD-085D3E62A67C-d5rIkyn9cnPYtjvyW6yDsg@public.gmane.org> Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: --xA/XKXTdy9G3iaIz Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Nov 10, 2013 at 05:41:30PM +0100, Martin Sperl wrote: > As explained - you would need to make an educated guess if a spi_transfer= =20 > chain has changed or not (and I talk about the need to check the chain=20 > itself, speed, transferlength, rx_buff,tx_buff,... have not changed). No, you're going off and talking about something else here. You are very focused on the idea of skipping some of the setup but that's not the only thing being discussed. Please try to separate the various ideas. --xA/XKXTdy9G3iaIz Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSgL0JAAoJELSic+t+oim9sjgP+wbYVeoVsDxIgkBBUX3sXCkq 8AfSiK6u3K1ee9Gc0Vi7/gCq81VLCXAkJgsM+IUyVfr2k+312NhELwabdUtfIqP3 YZ0syWyp5rChX26hz+Soe+goUGumNCDHKgtXPoFuYZb5CqKohSKXaujzMXDVZLd1 9BjjOLaRHyqqnE8knLKJZ84xV0YXf0fzzoK0U61PrQrUHCg3Ua/a43fHhsVEGRw/ +5QSi+UlDWNTgychVGDFWLOatyTSGAT53ShUx/fTLUEjaQB11MFmrjo34ClONmzm tGdzDr0UDYUbg4we6HMgCr64df7WvhKN41ILU2LRBLB0j33e7XRBYkQk+85bhBD1 kVZIaTu3tSL8c4tCg7tRJ3Tn8oVEcUQ5RhV35s6bQJStPK0/W9C2lL2Di3JGJjoh lAArVgNSDY5OT/GzmioGr8MlpxVWPC2osdkKcwA+Ah0Oby/P1zxIsOSxcHxmWEdu 2QxLhU7aZqyoAO+V3QSjUquIYWw45R6GvpbdLO79tbJgwEuJHPZf3syrM17h8XCW wHQBfR1iDtG5rrfFCyvwuKxzjoqhMpUyemyc19wU5lvh1z74MlOT1mcK+7ubUR1h QNjtwIlKPllPl1pVpbLZa7QSm7ADZJbBf3Y6QNOMiD7dVBI2ap2cSHOK0jAuOdcx 50XnRn8QhmHAI9Y/fdKc =PrJs -----END PGP SIGNATURE----- --xA/XKXTdy9G3iaIz-- -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html