From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Ask for help on SPI slave side driver support Date: Mon, 14 Oct 2013 17:24:37 +0100 Message-ID: <20131014162437.GE2443@sirena.org.uk> References: <23ff6b10.bf1d.1416a88321f.Coremail.youshenghui0322@163.com> <4025277.bhF6fFGQqq@flatron> <20130930093317.GX19304@sirena.org.uk> <4cd52b0c.af8e.14184497bb9.Coremail.youshenghui0322@163.com> <20131007113323.GL21581@sirena.org.uk> <4e8f3999.9132.141b335ef13.Coremail.youshenghui0322@163.com> <20131014112519.GQ2443@sirena.org.uk> <525C04DA.6050409@163.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="sD87aq2/Ee9ozic7" Return-path: Received: from cassiel.sirena.org.uk ([80.68.93.111]:39636 "EHLO cassiel.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757150Ab3JNQZF (ORCPT ); Mon, 14 Oct 2013 12:25:05 -0400 Content-Disposition: inline In-Reply-To: <525C04DA.6050409@163.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: ysh Cc: Tomasz Figa , linux-samsung-soc@vger.kernel.org, linux-spi@vger.kernel.org, jassi.brar@samsung.com --sD87aq2/Ee9ozic7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Oct 14, 2013 at 10:51:06PM +0800, ysh wrote: > Got it, then what about the setting of clk, mosi, miso pin in slave mode? > Do you mean I need to simulate spi slave side using four gpios? Hrm, now I think about it clock is going to be a problem... you're probably stuck with bitbanging unless there's some controller support which won't be awesome. --sD87aq2/Ee9ozic7 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAEBAgAGBQJSXBrCAAoJELSic+t+oim9NM8P/2vkVlt5gPIB0LV2eTCB7tDY omvIs1OPrwwmqY/05ZhVMRCf23R1834+tBPH0BZwJK/0G8EehK83D1/CBkCh+N/w /fGA8gYB+BeQdbb0wnFIPXAHzWNe2OicmuEpwK9Yb/aWAtfieGRmGFo8tsWgwYgJ 3ezIH8Tf46WbFYX4Af75gpSs8kuSuOH3haicNTyOpkGrSSdgLd7v0n6Q+oJxsF3C FqjwFwC/zkVRjtkgDmoqQDlIQXgCjjvXOGaRiSvXSPZgYH3C7xAd50yfdqb/Bkdh n7D1eXJ03KhGmFAcWX11Q4eb3t3e+vqwg/azrO+RCe6JYSt3r0ctJVTYErB7ei25 W8tFUHm0Av0SdAnuTPMHKQcxDaBAhkrJ6nhah30uCtceXHdwKn35a+Y6d5EwEENP F7lDoM9svUtIMumr/GHF5s/zM3jXYttOiKOJujhRxLYtQaEtxW1I5X+HWKRtrSkZ RFOJQR6fqUjv3rypul33N7bOLwBhBHWn8MkLIIewyNY14kdsQ2AsEaB/iirKaYPJ CEqKsTMVjS8/QS6a6HA6vN3pkSlf6NWWyliuAnyH71D0h4Enqjh77RoBIp2kijut d144SdJUck/Yur3fhz7aychq5eXCr/yo+CDgnE0dgI9UyL/3vm+WAlgpYbzA3tTa iHnrn4Q3exoLp9gzvJiK =AKrO -----END PGP SIGNATURE----- --sD87aq2/Ee9ozic7--