From 397d08b006fc8bbb087615214400b86b64f8fe50 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Mon, 6 Jul 2015 16:42:05 +0530 Subject: [PATCH] MIPS: sni: Migrate to new 'set-state' interface Migrate sni 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. Signed-off-by: Viresh Kumar Cc: Daniel Lezcano Cc: linux-mips@linux-mips.org Cc: linaro-kernel@lists.linaro.org Cc: Thomas Gleixner Patchwork: https://patchwork.linux-mips.org/patch/10612/ Signed-off-by: Ralf Baechle --- arch/mips/sni/time.c | 49 +++++++++++++++++--------------------------- 1 file changed, 19 insertions(+), 30 deletions(-) diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c index cf8ec568b9df..fb4b3520cdc6 100644 --- a/arch/mips/sni/time.c +++ b/arch/mips/sni/time.c @@ -14,44 +14,33 @@ #define SNI_COUNTER2_DIV 64 #define SNI_COUNTER0_DIV ((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ) -static void a20r_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) +static int a20r_set_periodic(struct clock_event_device *evt) { - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34; - wmb(); - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV; - wmb(); - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8; - wmb(); - - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4; - wmb(); - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV; - wmb(); - *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8; - wmb(); + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34; + wmb(); + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV; + wmb(); + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8; + wmb(); - break; - case CLOCK_EVT_MODE_ONESHOT: - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - break; - case CLOCK_EVT_MODE_RESUME: - break; - } + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4; + wmb(); + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV; + wmb(); + *(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8; + wmb(); + return 0; } static struct clock_event_device a20r_clockevent_device = { - .name = "a20r-timer", - .features = CLOCK_EVT_FEAT_PERIODIC, + .name = "a20r-timer", + .features = CLOCK_EVT_FEAT_PERIODIC, /* .mult, .shift, .max_delta_ns and .min_delta_ns left uninitialized */ - .rating = 300, - .irq = SNI_A20R_IRQ_TIMER, - .set_mode = a20r_set_mode, + .rating = 300, + .irq = SNI_A20R_IRQ_TIMER, + .set_state_periodic = a20r_set_periodic, }; static irqreturn_t a20r_interrupt(int irq, void *dev_id) -- 2.30.2