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 <viresh.kumar@linaro.org>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: linaro-kernel@lists.linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Patchwork: https://patchwork.linux-mips.org/patch/10612/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index cf8ec56..fb4b352 100644 (file)
--- 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)