Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932234AbbKQU7K (ORCPT ); Tue, 17 Nov 2015 15:59:10 -0500 Received: from mail.kernel.org ([198.145.29.136]:56687 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754642AbbKQU7G (ORCPT ); Tue, 17 Nov 2015 15:59:06 -0500 Date: Tue, 17 Nov 2015 14:59:01 -0600 From: Rob Herring To: Cory Tusar Cc: pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, agust@denx.de, gregkh@linuxfoundation.org, jic23@kernel.org, vz@mleia.com, broonie@kernel.org, afd@ti.com, andrew@lunn.ch, Chris.Healy@zii.aero, Keith.Vennel@zii.aero, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 6/7] misc: eeprom: 93xx46: Add DT binding for a GPIO 'select' line. Message-ID: <20151117205901.GA10669@rob-hp-laptop> References: <1447733796-15546-1-git-send-email-cory.tusar@pid1solutions.com> <1447733796-15546-7-git-send-email-cory.tusar@pid1solutions.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447733796-15546-7-git-send-email-cory.tusar@pid1solutions.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1726 Lines: 44 On Mon, Nov 16, 2015 at 11:16:35PM -0500, Cory Tusar wrote: > This commit documents an additional devicetree binding in the > eeprom_93x46 driver allowing a GPIO line to function as a 'select' > or 'enable' signal prior to accessing the EEPROM. You can just fold all the DT binding patches into 1. They don't have to match up to driver changes. > > Signed-off-by: Cory Tusar > --- > Documentation/devicetree/bindings/misc/eeprom-93xx46.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt > index 34a0cc2..75b16f4 100644 > --- a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt > +++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt > @@ -6,6 +6,8 @@ Required properties: > > Optional properties: > - read-only : parameter-less property which disables writes to the EEPROM > +- select-gpio : if present, specifies the GPIO that will be asserted prior to > + each access to the EEPROM (e.g. for SPI bus multiplexing) This should be "select-gpios". > > Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt > apply. In particular, "reg" and "spi-max-frequency" properties must be given. > @@ -17,4 +19,5 @@ Example: > spi-max-frequency = <1000000>; > spi-cs-high; > data-size = <8>; > + select-gpio = <&gpio4 4 GPIO_ACTIVE_HIGH>; > }; > -- > 2.4.10 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/