From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: [PATCH 3/5] spi: sunxi: expose maximum transfer size limit Date: Mon, 30 May 2016 10:37:45 +0200 Message-ID: <20160530083745.GG4247@lukather> References: <5fffb7eca6f4b70853d92be2403595d6d06bede7.1464130597.git.hramrach@gmail.com> Reply-To: maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="fCcDWlUEdh43YKr8" Cc: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, Mark Brown , Chen-Yu Tsai , linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Michal Suchanek Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Content-Disposition: inline In-Reply-To: <5fffb7eca6f4b70853d92be2403595d6d06bede7.1464130597.git.hramrach-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , List-Id: linux-spi.vger.kernel.org --fCcDWlUEdh43YKr8 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline On Thu, May 26, 2016 at 07:25:24PM -0000, Michal Suchanek wrote: > The sun4i spi hardware can trasfer at most 63 bytes of data without DMA > support so report the limitation. Same on sun6i. Is it? Is there timeouts on the A31 and later SoCs? Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com --fCcDWlUEdh43YKr8--