#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <linux/sh_timer.h>
+#include <linux/slab.h>
struct sh_cmt_priv {
void __iomem *mapbase;
struct platform_device *pdev;
unsigned long flags;
- unsigned long flags_suspend;
unsigned long match_value;
unsigned long next_match_value;
unsigned long max_match_value;
static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate)
{
- struct sh_timer_config *cfg = p->pdev->dev.platform_data;
int ret;
/* enable clock */
ret = clk_enable(p->clk);
if (ret) {
- pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk);
+ dev_err(&p->pdev->dev, "cannot enable clock\n");
return ret;
}
delay = 1;
if (!delay)
- pr_warning("sh_cmt: too long delay\n");
+ dev_warn(&p->pdev->dev, "too long delay\n");
} while (delay);
}
unsigned long flags;
if (delta > p->max_match_value)
- pr_warning("sh_cmt: delta out of range\n");
+ dev_warn(&p->pdev->dev, "delta out of range\n");
spin_lock_irqsave(&p->lock, flags);
p->next_match_value = delta;
sh_cmt_stop(cs_to_sh_cmt(cs), FLAG_CLOCKSOURCE);
}
+static void sh_cmt_clocksource_resume(struct clocksource *cs)
+{
+ sh_cmt_start(cs_to_sh_cmt(cs), FLAG_CLOCKSOURCE);
+}
+
static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
char *name, unsigned long rating)
{
cs->read = sh_cmt_clocksource_read;
cs->enable = sh_cmt_clocksource_enable;
cs->disable = sh_cmt_clocksource_disable;
+ cs->suspend = sh_cmt_clocksource_disable;
+ cs->resume = sh_cmt_clocksource_resume;
cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8);
cs->flags = CLOCK_SOURCE_IS_CONTINUOUS;
- pr_info("sh_cmt: %s used as clock source\n", cs->name);
+ dev_info(&p->pdev->dev, "used as clock source\n");
clocksource_register(cs);
return 0;
}
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
- pr_info("sh_cmt: %s used for periodic clock events\n",
- ced->name);
+ dev_info(&p->pdev->dev, "used for periodic clock events\n");
sh_cmt_clock_event_start(p, 1);
break;
case CLOCK_EVT_MODE_ONESHOT:
- pr_info("sh_cmt: %s used for oneshot clock events\n",
- ced->name);
+ dev_info(&p->pdev->dev, "used for oneshot clock events\n");
sh_cmt_clock_event_start(p, 0);
break;
case CLOCK_EVT_MODE_SHUTDOWN:
ced->set_next_event = sh_cmt_clock_event_next;
ced->set_mode = sh_cmt_clock_event_mode;
- pr_info("sh_cmt: %s used for clock events\n", ced->name);
+ dev_info(&p->pdev->dev, "used for clock events\n");
clockevents_register_device(ced);
}
/* map memory, let mapbase point to our channel */
p->mapbase = ioremap_nocache(res->start, resource_size(res));
if (p->mapbase == NULL) {
- pr_err("sh_cmt: failed to remap I/O memory\n");
+ dev_err(&p->pdev->dev, "failed to remap I/O memory\n");
goto err0;
}
/* request irq using setup_irq() (too early for request_irq()) */
- p->irqaction.name = cfg->name;
+ p->irqaction.name = dev_name(&p->pdev->dev);
p->irqaction.handler = sh_cmt_interrupt;
p->irqaction.dev_id = p;
- p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL;
+ p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \
+ IRQF_IRQPOLL | IRQF_NOBALANCING;
/* get hold of clock */
- p->clk = clk_get(&p->pdev->dev, cfg->clk);
+ p->clk = clk_get(&p->pdev->dev, "cmt_fck");
if (IS_ERR(p->clk)) {
- pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk);
- ret = PTR_ERR(p->clk);
- goto err1;
+ dev_warn(&p->pdev->dev, "using deprecated clock lookup\n");
+ p->clk = clk_get(&p->pdev->dev, cfg->clk);
+ if (IS_ERR(p->clk)) {
+ dev_err(&p->pdev->dev, "cannot get clock\n");
+ ret = PTR_ERR(p->clk);
+ goto err1;
+ }
}
if (resource_size(res) == 6) {
p->clear_bits = ~0xc000;
}
- ret = sh_cmt_register(p, cfg->name,
+ ret = sh_cmt_register(p, (char *)dev_name(&p->pdev->dev),
cfg->clockevent_rating,
cfg->clocksource_rating);
if (ret) {
- pr_err("sh_cmt: registration failed\n");
+ dev_err(&p->pdev->dev, "registration failed\n");
goto err1;
}
ret = setup_irq(irq, &p->irqaction);
if (ret) {
- pr_err("sh_cmt: failed to request irq %d\n", irq);
+ dev_err(&p->pdev->dev, "failed to request irq %d\n", irq);
goto err1;
}
static int __devinit sh_cmt_probe(struct platform_device *pdev)
{
struct sh_cmt_priv *p = platform_get_drvdata(pdev);
- struct sh_timer_config *cfg = pdev->dev.platform_data;
int ret;
if (p) {
- pr_info("sh_cmt: %s kept as earlytimer\n", cfg->name);
+ dev_info(&pdev->dev, "kept as earlytimer\n");
return 0;
}
return -EBUSY; /* cannot unregister clockevent and clocksource */
}
-static int sh_cmt_suspend(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct sh_cmt_priv *p = platform_get_drvdata(pdev);
-
- /* save flag state and stop CMT channel */
- p->flags_suspend = p->flags;
- sh_cmt_stop(p, p->flags);
- return 0;
-}
-
-static int sh_cmt_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct sh_cmt_priv *p = platform_get_drvdata(pdev);
-
- /* start CMT channel from saved state */
- sh_cmt_start(p, p->flags_suspend);
- return 0;
-}
-
-static struct dev_pm_ops sh_cmt_dev_pm_ops = {
- .suspend = sh_cmt_suspend,
- .resume = sh_cmt_resume,
-};
-
static struct platform_driver sh_cmt_device_driver = {
.probe = sh_cmt_probe,
.remove = __devexit_p(sh_cmt_remove),
.driver = {
.name = "sh_cmt",
- .pm = &sh_cmt_dev_pm_ops,
}
};
git.openpandora.org / pandora-kernel.git / blobdiff