From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [PATCH] i2c: designware: deduce speed mode from device tree setting Date: Wed, 20 Aug 2014 10:52:22 +0300 Message-ID: <20140820075222.GA1660@lahna.fi.intel.com> References: <1408479529-24249-1-git-send-email-atull@opensource.altera.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1408479529-24249-1-git-send-email-atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org Cc: wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org, baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org, grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, skuribay-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org, Romain.Baeriswyl-ux6zf3SgZrrQT0dZR+AlfA@public.gmane.org, rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, alan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, delicious.quinoa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, dinguyen-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org, yvanderv-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org List-Id: devicetree@vger.kernel.org On Tue, Aug 19, 2014 at 03:18:49PM -0500, atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org wrote: > From: Alan Tull > > Use the documented, but unimplemented "clock-frequency" > Device Tree setting as a guide on whether to set the speed > mode bits in DW_IC_CON to standard or fast i2c mode. > > Previously, the driver was hardwired to fast mode. Default > to fast mode if the "clock-frequency" property is not present > for backwards compatiblity. > > Signed-off-by: Alan Tull I don't know much about the Device Tree bindings but the patch looks good to me, Acked-by: Mika Westerberg