linux-kernel - [PATCH v4 0/3] Introduce clocksource driver for Keystone platform

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Date:	Tue, 4 Feb 2014 13:30:50 +0200
From:	Ivan Khoronzhuk <ivan.khoronzhuk@...com>
To:	<santosh.shilimkar@...com>, <rob@...dley.net>,
	<linux@....linux.org.uk>, <galak@...eaurora.org>
CC:	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <daniel.lezcano@...aro.org>,
	<tglx@...utronix.de>, <devicetree@...r.kernel.org>,
	<linux-doc@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <grygorii.strashko@...com>,
	Ivan Khoronzhuk <ivan.khoronzhuk@...com>
Subject: [PATCH v4 0/3] Introduce clocksource driver for Keystone platform

Add a broadcast timer64 based clockevent driver for keystone arch.
This driver uses timer in 64-bit general purpose mode as clock event
device.

Documentation:
    http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf

Based on
git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone.git
keystone/master

v3..v4:
	rebased on latest of linux-keystone.git keystone/master

v2..v3:
- clocksource: timer-keystone: introduce clocksource driver for
	changed "u64" type to "unsigned long" for hz_period as more appropriate
	hz_period rounded up by DIV_ROUND_UP(rate, HZ)
	corrected comments

v1..v2:
- clocksource: timer-keystone: introduce clocksource driver for
	renamed timer on "timer-keystone"
	in keystone_timer_interrupt() evet pointer is passed via "dev_id"
	used __relaxed variants of writel/readl and added explicit barriers
	added "keystone_timer_disable()" for using in keystone_set_mode()
	keystone_timer_config() is not used for disabling the timer any more
	in case of an unsupported mode the keystone_timer_config() returns -1.
	used request_irq() instead of setup_irq()
	assigned irq for event_device in event_dev->irq
	calculated timer.hz_period for CLOCK_EVT_MODE_PERIODIC at init
	deleted spare call of keystone_timer_config() in keystone_timer_init()
*

Ivan Khoronzhuk (3):
  clocksource: timer-keystone: introduce clocksource driver for Keystone
  clocksource: keystone: add bindings for keystone timer
  arm: dts: keystone: add keystone timer entry

 .../bindings/timer/ti,keystone-timer.txt           |  29 +++
 arch/arm/boot/dts/keystone-clocks.dtsi             |  10 +
 arch/arm/boot/dts/keystone.dtsi                    |   7 +
 drivers/clocksource/Makefile                       |   1 +
 drivers/clocksource/timer-keystone.c               | 233 +++++++++++++++++++++
 5 files changed, 280 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/ti,keystone-timer.txt
 create mode 100644 drivers/clocksource/timer-keystone.c

-- 
1.8.3.2

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