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authorViresh Kumar <viresh.kumar@linaro.org>2015-02-27 13:39:52 +0530
committerViresh Kumar <viresh.kumar@linaro.org>2015-07-17 08:26:12 +0530
commit9325a3a896b611454f6ab3dcedf69c5799dd5617 (patch)
tree102ca7254c043717a9091223007d0c29ff919ff1
parent7cfa3c69ca97acfd7cac19652d82aa610015bab8 (diff)
downloadop-kernel-dev-9325a3a896b611454f6ab3dcedf69c5799dd5617.zip
op-kernel-dev-9325a3a896b611454f6ab3dcedf69c5799dd5617.tar.gz
ARM/lpc32xx/timer: Migrate to new 'set-state' interface
Migrate lpc32xx driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Roland Stigge <stigge@antcom.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
-rw-r--r--arch/arm/mach-lpc32xx/timer.c40
1 files changed, 14 insertions, 26 deletions
diff --git a/arch/arm/mach-lpc32xx/timer.c b/arch/arm/mach-lpc32xx/timer.c
index 4e583729..ff3499d 100644
--- a/arch/arm/mach-lpc32xx/timer.c
+++ b/arch/arm/mach-lpc32xx/timer.c
@@ -43,36 +43,24 @@ static int lpc32xx_clkevt_next_event(unsigned long delta,
return 0;
}
-static void lpc32xx_clkevt_mode(enum clock_event_mode mode,
- struct clock_event_device *dev)
+static int lpc32xx_shutdown(struct clock_event_device *evt)
{
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- WARN_ON(1);
- break;
-
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_SHUTDOWN:
- /*
- * Disable the timer. When using oneshot, we must also
- * disable the timer to wait for the first call to
- * set_next_event().
- */
- __raw_writel(0, LPC32XX_TIMER_TCR(LPC32XX_TIMER0_BASE));
- break;
-
- case CLOCK_EVT_MODE_UNUSED:
- case CLOCK_EVT_MODE_RESUME:
- break;
- }
+ /*
+ * Disable the timer. When using oneshot, we must also
+ * disable the timer to wait for the first call to
+ * set_next_event().
+ */
+ __raw_writel(0, LPC32XX_TIMER_TCR(LPC32XX_TIMER0_BASE));
+ return 0;
}
static struct clock_event_device lpc32xx_clkevt = {
- .name = "lpc32xx_clkevt",
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .rating = 300,
- .set_next_event = lpc32xx_clkevt_next_event,
- .set_mode = lpc32xx_clkevt_mode,
+ .name = "lpc32xx_clkevt",
+ .features = CLOCK_EVT_FEAT_ONESHOT,
+ .rating = 300,
+ .set_next_event = lpc32xx_clkevt_next_event,
+ .set_state_shutdown = lpc32xx_shutdown,
+ .set_state_oneshot = lpc32xx_shutdown,
};
static irqreturn_t lpc32xx_timer_interrupt(int irq, void *dev_id)
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