From: Sascha Hauer <s.hauer@pengutronix.de>
To: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
Arnd Bergmann <arnd@arndb.de>, viresh kumar <viresh.kumar@st.com>,
Shawn Guo <shawn.guo@linaro.org>,
Ryan Mallon <ryan@bluewatersys.com>
Subject: [RFC] implement a generic PWM framework - once again
Date: Tue, 28 Jun 2011 12:02:46 +0200 [thread overview]
Message-ID: <1309255368-9775-1-git-send-email-s.hauer@pengutronix.de> (raw)
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
next reply other threads:[~2011-06-28 10:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-28 10:02 Sascha Hauer [this message]
2011-06-28 10:02 ` [PATCH 1/2] PWM: add pwm framework support Sascha Hauer
2011-06-28 11:14 ` Kurt Van Dijck
2011-06-28 12:27 ` Arnd Bergmann
2011-06-28 16:18 ` Sascha Hauer
2011-06-28 17:03 ` Arnd Bergmann
2011-06-29 8:50 ` Sascha Hauer
2011-06-29 11:00 ` Arnd Bergmann
2011-06-28 19:40 ` Matthias Kaehlcke
2011-06-28 10:02 ` [PATCH 2/2] pwm: Add a i.MX23/28 pwm driver Sascha Hauer
2011-06-28 10:28 ` Lothar Waßmann
2011-06-28 15:22 ` Arnd Bergmann
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