Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964832AbbLHOGE (ORCPT ); Tue, 8 Dec 2015 09:06:04 -0500 Received: from vps0.lunn.ch ([178.209.37.122]:32835 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754516AbbLHOGB (ORCPT ); Tue, 8 Dec 2015 09:06:01 -0500 From: Andrew Lunn To: GregKH , srinivas.kandagatla@linaro.org, maxime.ripard@free-electrons.com, wsa@the-dreams.de, broonie@kernel.org, vz@mleia.com Cc: afd@ti.com, linux-kernel@vger.kernel.org, Andrew Lunn Subject: [PATCH 0/6] Convert existing EEPROM drivers to NVMEM Date: Tue, 8 Dec 2015 15:05:05 +0100 Message-Id: <1449583511-22521-1-git-send-email-andrew@lunn.ch> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1984 Lines: 43 This patches converts the old EEPROM drivers in driver/misc/eeprom to use the NVMEM framework. These drivers export there content in /sys as read only to root, since the EEPROM may contain sensitive information. So the first patch adds a flag so the NVMEM framework will create its file in /sys as root read only. To keep backwards compatibility with these older drivers, the contents of the EEPROM must be exports in sysfs in a file called eeprom in the devices node in sys, where as the NVMEM places them under class/nvmem. So add this optional backwards compatible to the framework. Then convert the at24, at25 and 93xx46 by adding regmap support, removing each drivers own /sys code and registering with the NVMEM framework. AT24 and 93xx46 has been boot tested, at25 compile tested only. Andrew Lunn (6): nvmem: Add flag to export NVMEM to root only nvmem: Add backwards compatibility support for older EEPROM drivers. eeprom: at24: extend driver to plug into the NVMEM framework eeprom: at25: Remove in kernel API for accessing the EEPROM eeprom: at25: extend driver to plug into the NVMEM framework eeprom: 93xx46: extend driver to plug into the NVMEM framework drivers/misc/eeprom/Kconfig | 9 +++ drivers/misc/eeprom/at24.c | 119 +++++++++++++++++++---------- drivers/misc/eeprom/at25.c | 147 ++++++++++++++++-------------------- drivers/misc/eeprom/eeprom_93xx46.c | 121 ++++++++++++++++++++++------- drivers/nvmem/Kconfig | 7 ++ drivers/nvmem/core.c | 132 ++++++++++++++++++++++++++++++-- include/linux/nvmem-provider.h | 11 +++ include/linux/spi/eeprom.h | 2 - 8 files changed, 393 insertions(+), 155 deletions(-) -- 2.6.2 -- 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/