Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753037AbbKQESU (ORCPT ); Mon, 16 Nov 2015 23:18:20 -0500 Received: from mail-qk0-f177.google.com ([209.85.220.177]:36788 "EHLO mail-qk0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752707AbbKQERo (ORCPT ); Mon, 16 Nov 2015 23:17:44 -0500 From: Cory Tusar To: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, agust@denx.de, gregkh@linuxfoundation.org Cc: 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, Cory Tusar Subject: [PATCH 6/7] misc: eeprom: 93xx46: Add DT binding for a GPIO 'select' line. Date: Mon, 16 Nov 2015 23:16:35 -0500 Message-Id: <1447733796-15546-7-git-send-email-cory.tusar@pid1solutions.com> X-Mailer: git-send-email 2.4.10 In-Reply-To: <1447733796-15546-1-git-send-email-cory.tusar@pid1solutions.com> References: <1447733796-15546-1-git-send-email-cory.tusar@pid1solutions.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1468 Lines: 36 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. 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) 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/