Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756172Ab1F1KEW (ORCPT ); Tue, 28 Jun 2011 06:04:22 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:41651 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755786Ab1F1KC4 (ORCPT ); Tue, 28 Jun 2011 06:02:56 -0400 From: Sascha Hauer To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Arnd Bergmann , viresh kumar , Shawn Guo , Ryan Mallon Subject: [RFC] implement a generic PWM framework - once again Date: Tue, 28 Jun 2011 12:02:46 +0200 Message-Id: <1309255368-9775-1-git-send-email-s.hauer@pengutronix.de> X-Mailer: git-send-email 1.7.5.3 X-SA-Exim-Connect-IP: 2001:6f8:1178:2:215:17ff:fe12:23b0 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1935 Lines: 50 Hi All, The following implements a generic pwm framework and adds a user for it. I already posted this series back in January. Based on the comments I received I added some details about the motivation for adding such a framework and not using the led or hwmon framework to patch 1/2. I also added some documentation to Documentation/pwm.txt. This patch does not change the user API for PWMs, in particular it does not enforce any sleep/nonsleep context to the PWM users. The patch merely puts the status quo into a core wrapper to be able to register multiple PWM drivers in the system. Improvements to the API can still be made later once we have at least a place in the kernel to collect the existing PWM drivers. Sascha The following changes since commit b0af8dfdd67699e25083478c63eedef2e72ebd85: Linux 3.0-rc5 (2011-06-27 19:12:22 -0700) are available in the git repository at: git://git.pengutronix.de/git/imx/linux-2.6.git pwm Sascha Hauer (2): PWM: add pwm framework support pwm: Add a i.MX23/28 pwm driver Documentation/pwm.txt | 56 ++++++++++ MAINTAINERS | 5 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/pwm/Kconfig | 12 ++ drivers/pwm/Makefile | 1 + drivers/pwm/core.c | 246 +++++++++++++++++++++++++++++++++++++++++++ drivers/pwm/mxs-pwm.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/pwm.h | 38 +++++++ 9 files changed, 636 insertions(+), 0 deletions(-) create mode 100644 Documentation/pwm.txt create mode 100644 drivers/pwm/Kconfig create mode 100644 drivers/pwm/Makefile create mode 100644 drivers/pwm/core.c create mode 100644 drivers/pwm/mxs-pwm.c -- 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/