linux-kernel - Re: [PATCH 07/15] ARM: dts: kirkwood: consolidate common pinctrl settings

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Message-ID: <20140430164236.GC12944@obsidianresearch.com>
Date:	Wed, 30 Apr 2014 10:42:36 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Mark Rutland <mark.rutland@....com>, Andrew Lunn <andrew@...n.ch>,
	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Rob Herring <robh+dt@...nel.org>,
	Kumar Gala <galak@...eaurora.org>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 07/15] ARM: dts: kirkwood: consolidate common pinctrl
 settings

On Wed, Apr 30, 2014 at 02:56:34PM +0200, Sebastian Hesselbarth wrote:
> All SoCs have the same pinctrl setting for NAND, UART0/1, SPI, TWSI0,
> and GBE1. Move it to the common pinctrl node that we now have.

There are two possible choices for UART0, UART1, and SPI on kirkwood..

For instance I use this on my board:

                                pmx_spi0: pmx-spi0 {
                                        marvell,pins = "mpp7", "mpp10", "mpp11", "mpp12";
                                        marvell,function = "spi";
                                };

vs

> +
> +			pmx_spi: pmx-spi {
> +				marvell,pins = "mpp0", "mpp1", "mpp2", "mpp3";
> +				marvell,function = "spi";
> +			};

It looks like all the boards in the kernel use the same choice, so it
makes some sense to consolidate, but I assume a board file can
override the marvell,pins?

Otherwise the rest of your patchset looked sane to me.

Regards,
Jason
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