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Date: Fri, 26 Jul 2013 13:38:24 -0500 From: Rob Herring <robherring2@...il.com> To: Mark Rutland <mark.rutland@....com> CC: Mark Langsdorf <mark.langsdorf@...xeda.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>, "tj@...nel.org" <tj@...nel.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Pawel Moll <Pawel.Moll@....com>, "swarren@...dotorg.org" <swarren@...dotorg.org>, "ian.campbell@...rix.com" <ian.campbell@...rix.com> Subject: Re: [PATCH 4/5] sata, highbank: set tx_atten override bits On 07/26/2013 11:22 AM, Mark Rutland wrote: > On Fri, Jul 26, 2013 at 04:11:57PM +0100, Mark Langsdorf wrote: >> Some board designs do not drive the SATA transmit lines within the >> specification. The ECME can provide override settings, on a per board >> basis, to bring the transmit lines within spec. Read those settings >> from the DTB and program them in. > > How variable is the use of this property going to be? Would it instead > be possible to decide that this was necessary, and choose the > appropriate values based on a compatible property? It is based on compliance testing of the particular board design. Basing on a compatible property would not work in this case. Rob -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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