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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2015-02-27 13:39:52 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2015-07-17 08:26:12 +0530 |
| commit | 9325a3a896b611454f6ab3dcedf69c5799dd5617 (patch) | |
| tree | 102ca7254c043717a9091223007d0c29ff919ff1 | |
| parent | 7cfa3c69ca97acfd7cac19652d82aa610015bab8 (diff) | |
| download | op-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.c | 40 |
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) |
