From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 6 Mar 2018 15:39:40 +0000 From: Mark Brown To: Jonas Gorski Cc: Sasha Levin , "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: Re: [PATCH AUTOSEL for 4.9 002/219] spi/bcm63xx: make spi subsystem aware of message size limits Message-ID: <20180306153940.GD13586@sirena.org.uk> References: <20180303222716.26640-1-alexander.levin@microsoft.com> <20180303222716.26640-2-alexander.levin@microsoft.com> <20180305102310.GC8588@sirena.org.uk> <20180305200744.afw64js6wnmyfqrb@sasha-lappy> <20180305203533.GP8588@sirena.org.uk> <20180306142012.GB13586@sirena.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="JwB53PgKC5A7+0Ej" Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: --JwB53PgKC5A7+0Ej Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Mar 06, 2018 at 04:33:34PM +0100, Jonas Gorski wrote: > I would assume that this is true for most systems with a limited SPI > controller. I would hope that most board designers are sensible enough > to not add devices that won't work ;-) With things like firmware downloads the problem is that they can generally work, they're just horribly inefficient since you have to chunk them up into multiple operations rather than just pointing the hardware at a big buffer and letting it get on with things (same problem as with flash really). --JwB53PgKC5A7+0Ej Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlqetjsACgkQJNaLcl1U h9BYqgf9Hweq1HR3HmxLk0MmjWrT2oaq3qvHsUvT6ZR2vny/Mmsm7J8kMRp72pDd UMYnofaiHg5GuXiAufMPhS9sI0t+SwOlnpFVjo+McPYf42+n6OaktM7BQl3kZHA+ wg5x9+/9fQNpSbLtkLkS2SusjcQl8+mWzJct6/UTGTVFimZ/GK2rZFYguIwKIEjw 6pLBRggKwQQQZgPhyXPS4A4aU14znuJul4Z6XXHpDkfv3RD61FqWKyeUxnS3PP9S qRtHYMkrq7jGrK7LwkG1eadSsroc2efFWzAaNIrikMxbrCn6iMRe/GRN92BpSUby Joq51JefBCV+hcFCaCqoZ7+8GhkTXg== =/sMz -----END PGP SIGNATURE----- --JwB53PgKC5A7+0Ej--