linux-imx

/*

 * linux/arch/arm/plat-omap/dmtimer.c

 *

 * OMAP Dual-Mode Timers

 *

 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/

 * Tarun Kanti DebBarma <tarun.kanti@ti.com>

 * Thara Gopinath <thara@ti.com>

 *

 * dmtimer adaptation to platform_driver.

 *

 * Copyright (C) 2005 Nokia Corporation

 * OMAP2 support by Juha Yrjola

 * API improvements and OMAP2 clock framework support by Timo Teras

 *

 * Copyright (C) 2009 Texas Instruments

 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by the

 * Free Software Foundation; either version 2 of the License, or (at your

 * option) any later version.

 *

 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN

 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 * You should have received a copy of the  GNU General Public License along

 * with this program; if not, write  to the Free Software Foundation, Inc.,

 * 675 Mass Ave, Cambridge, MA 02139, USA.

 */

​

#include <linux/clk.h>

#include <linux/clk-provider.h>

#include <linux/module.h>

#include <linux/io.h>

#include <linux/device.h>

#include <linux/err.h>

#include <linux/pm_runtime.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/platform_data/dmtimer-omap.h>

​

#include <clocksource/timer-ti-dm.h>

​

static u32 omap_reserved_systimers;

static LIST_HEAD(omap_timer_list);

static DEFINE_SPINLOCK(dm_timer_lock);

​

enum {

    REQUEST_ANY = 0,

    REQUEST_BY_ID,

    REQUEST_BY_CAP,

    REQUEST_BY_NODE,

};

​

/**