From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752851Ab2AZPwF (ORCPT ); Thu, 26 Jan 2012 10:52:05 -0500 Received: from mail2.gnudd.com ([213.203.150.91]:62373 "EHLO mail.gnudd.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752229Ab2AZPwD (ORCPT ); Thu, 26 Jan 2012 10:52:03 -0500 Date: Thu, 26 Jan 2012 16:51:50 +0100 From: Alessandro Rubini To: linux-kernel@vger.kernel.org Cc: giancarlo.asnaghi@st.com, alan@linux.intel.com, sameo@linux.intel.com, grant.likely@secretlab.ca, linus.walleij@stericsson.com Subject: [RFC PATCH 0/2] MFD and GPIO for STA2X11 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Organization: GnuDD, Device Drivers, Embedded Systems, Courses Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These two patches introduce multi-function device and GPIO support for the STA2X11 I/O Hub. It's an RFC for both as explained below. - I think the MFD driver is ok. This MFD_STA2X11 config symbol is autoselected by CONFIG_STA2X11, which is pending in the "x86: initial support for sta2x11" patch, for which I need to send V2 later today, with some minor fixes. Similarly, is not upstream yet, so I'll need to resend later, I suppose. - The GPIO patch has a quirk: I chose to register a single irq chip for 128 interrupts but the generic irq_chip only support 32 interrupts. I'm sure the hack I did (request the irq descs myself) is not good, but what is the best approach here? Using 4 generic irq chips or defining my own, non-generic one? Thanks a lot /alessandro Alessandro Rubini (2): mfd: Add driver for STA2X11 MFD block gpio: add STA2X11 GPIO block drivers/gpio/Kconfig | 9 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-sta2x11.c | 380 +++++++++++++++++++++++++++++++ drivers/mfd/Kconfig | 6 + drivers/mfd/Makefile | 1 + drivers/mfd/sta2x11-mfd.c | 470 +++++++++++++++++++++++++++++++++++++++ include/linux/mfd/sta2x11-mfd.h | 186 +++++++++++++++ 7 files changed, 1053 insertions(+), 0 deletions(-) create mode 100644 drivers/gpio/gpio-sta2x11.c create mode 100644 drivers/mfd/sta2x11-mfd.c create mode 100644 include/linux/mfd/sta2x11-mfd.h -- 1.7.7.2