clocksource/drivers/timer-cs5535: Rename the file for consistency

For the sake of consistency, let's rename the file to a name similar
to other file names in this directory.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 0 insertions, 196 deletions

diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
deleted file mode 100644
index 1de8cac99a0e..000000000000
--- a/drivers/clocksource/cs5535-clockevt.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Clock event driver for the CS5535/CS5536
- *
- * Copyright (C) 2006, Advanced Micro Devices, Inc.
- * Copyright (C) 2007  Andres Salomon <dilinger@debian.org>
- * Copyright (C) 2009  Andres Salomon <dilinger@collabora.co.uk>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * The MFGPTs are documented in AMD Geode CS5536 Companion Device Data Book.
- */
-
-#include <linux/kernel.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/cs5535.h>
-#include <linux/clockchips.h>
-
-#define DRV_NAME "cs5535-clockevt"
-
-static int timer_irq;
-module_param_hw_named(irq, timer_irq, int, irq, 0644);
-MODULE_PARM_DESC(irq, "Which IRQ to use for the clock source MFGPT ticks.");
-
-/*
- * We are using the 32.768kHz input clock - it's the only one that has the
- * ranges we find desirable.  The following table lists the suitable
- * divisors and the associated Hz, minimum interval and the maximum interval:
- *
- *  Divisor   Hz      Min Delta (s)  Max Delta (s)
- *   1        32768   .00048828125      2.000
- *   2        16384   .0009765625       4.000
- *   4         8192   .001953125        8.000
- *   8         4096   .00390625        16.000
- *   16        2048   .0078125         32.000
- *   32        1024   .015625          64.000
- *   64         512   .03125          128.000
- *  128         256   .0625           256.000
- *  256         128   .125            512.000
- */
-
-static struct cs5535_mfgpt_timer *cs5535_event_clock;
-
-/* Selected from the table above */
-
-#define MFGPT_DIVISOR 16
-#define MFGPT_SCALE  4     /* divisor = 2^(scale) */
-#define MFGPT_HZ  (32768 / MFGPT_DIVISOR)
-#define MFGPT_PERIODIC (MFGPT_HZ / HZ)
-
-/*
- * The MFGPT timers on the CS5536 provide us with suitable timers to use
- * as clock event sources - not as good as a HPET or APIC, but certainly
- * better than the PIT.  This isn't a general purpose MFGPT driver, but
- * a simplified one designed specifically to act as a clock event source.
- * For full details about the MFGPT, please consult the CS5536 data sheet.
- */
-
-static void disable_timer(struct cs5535_mfgpt_timer *timer)
-{
-	/* avoid races by clearing CMP1 and CMP2 unconditionally */
-	cs5535_mfgpt_write(timer, MFGPT_REG_SETUP,
-			(uint16_t) ~MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP1 |
-				MFGPT_SETUP_CMP2);
-}
-
-static void start_timer(struct cs5535_mfgpt_timer *timer, uint16_t delta)
-{
-	cs5535_mfgpt_write(timer, MFGPT_REG_CMP2, delta);
-	cs5535_mfgpt_write(timer, MFGPT_REG_COUNTER, 0);
-
-	cs5535_mfgpt_write(timer, MFGPT_REG_SETUP,
-			MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
-}
-
-static int mfgpt_shutdown(struct clock_event_device *evt)
-{
-	disable_timer(cs5535_event_clock);
-	return 0;
-}
-
-static int mfgpt_set_periodic(struct clock_event_device *evt)
-{
-	disable_timer(cs5535_event_clock);
-	start_timer(cs5535_event_clock, MFGPT_PERIODIC);
-	return 0;
-}
-
-static int mfgpt_next_event(unsigned long delta, struct clock_event_device *evt)
-{
-	start_timer(cs5535_event_clock, delta);
-	return 0;
-}
-
-static struct clock_event_device cs5535_clockevent = {
-	.name = DRV_NAME,
-	.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_state_shutdown = mfgpt_shutdown,
-	.set_state_periodic = mfgpt_set_periodic,
-	.set_state_oneshot = mfgpt_shutdown,
-	.tick_resume = mfgpt_shutdown,
-	.set_next_event = mfgpt_next_event,
-	.rating = 250,
-};
-
-static irqreturn_t mfgpt_tick(int irq, void *dev_id)
-{
-	uint16_t val = cs5535_mfgpt_read(cs5535_event_clock, MFGPT_REG_SETUP);
-
-	/* See if the interrupt was for us */
-	if (!(val & (MFGPT_SETUP_SETUP | MFGPT_SETUP_CMP2 | MFGPT_SETUP_CMP1)))
-		return IRQ_NONE;
-
-	/* Turn off the clock (and clear the event) */
-	disable_timer(cs5535_event_clock);
-
-	if (clockevent_state_detached(&cs5535_clockevent) ||
-	    clockevent_state_shutdown(&cs5535_clockevent))
-		return IRQ_HANDLED;
-
-	/* Clear the counter */
-	cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_COUNTER, 0);
-
-	/* Restart the clock in periodic mode */
-
-	if (clockevent_state_periodic(&cs5535_clockevent))
-		cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_SETUP,
-				MFGPT_SETUP_CNTEN | MFGPT_SETUP_CMP2);
-
-	cs5535_clockevent.event_handler(&cs5535_clockevent);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction mfgptirq  = {
-	.handler = mfgpt_tick,
-	.flags = IRQF_NOBALANCING | IRQF_TIMER | IRQF_SHARED,
-	.name = DRV_NAME,
-};
-
-static int __init cs5535_mfgpt_init(void)
-{
-	struct cs5535_mfgpt_timer *timer;
-	int ret;
-	uint16_t val;
-
-	timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
-	if (!timer) {
-		printk(KERN_ERR DRV_NAME ": Could not allocate MFGPT timer\n");
-		return -ENODEV;
-	}
-	cs5535_event_clock = timer;
-
-	/* Set up the IRQ on the MFGPT side */
-	if (cs5535_mfgpt_setup_irq(timer, MFGPT_CMP2, &timer_irq)) {
-		printk(KERN_ERR DRV_NAME ": Could not set up IRQ %d\n",
-				timer_irq);
-		goto err_timer;
-	}
-
-	/* And register it with the kernel */
-	ret = setup_irq(timer_irq, &mfgptirq);
-	if (ret) {
-		printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n");
-		goto err_irq;
-	}
-
-	/* Set the clock scale and enable the event mode for CMP2 */
-	val = MFGPT_SCALE | (3 << 8);
-
-	cs5535_mfgpt_write(cs5535_event_clock, MFGPT_REG_SETUP, val);
-
-	/* Set up the clock event */
-	printk(KERN_INFO DRV_NAME
-		": Registering MFGPT timer as a clock event, using IRQ %d\n",
-		timer_irq);
-	clockevents_config_and_register(&cs5535_clockevent, MFGPT_HZ,
-					0xF, 0xFFFE);
-
-	return 0;
-
-err_irq:
-	cs5535_mfgpt_release_irq(cs5535_event_clock, MFGPT_CMP2, &timer_irq);
-err_timer:
-	cs5535_mfgpt_free_timer(cs5535_event_clock);
-	printk(KERN_ERR DRV_NAME ": Unable to set up the MFGPT clock source\n");
-	return -EIO;
-}
-
-module_init(cs5535_mfgpt_init);
-
-MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
-MODULE_DESCRIPTION("CS5535/CS5536 MFGPT clock event driver");
-MODULE_LICENSE("GPL");