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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>
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@ -14,44 +14,33 @@
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#define SNI_COUNTER2_DIV 64
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#define SNI_COUNTER0_DIV ((SNI_CLOCK_TICK_RATE / SNI_COUNTER2_DIV) / HZ)
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static void a20r_set_mode(enum clock_event_mode mode,
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struct clock_event_device *evt)
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static int a20r_set_periodic(struct clock_event_device *evt)
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{
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switch (mode) {
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case CLOCK_EVT_MODE_PERIODIC:
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0x34;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 0) = SNI_COUNTER0_DIV >> 8;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
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wmb();
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break;
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case CLOCK_EVT_MODE_ONESHOT:
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case CLOCK_EVT_MODE_UNUSED:
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case CLOCK_EVT_MODE_SHUTDOWN:
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break;
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case CLOCK_EVT_MODE_RESUME:
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break;
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}
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 12) = 0xb4;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV;
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wmb();
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*(volatile u8 *)(A20R_PT_CLOCK_BASE + 8) = SNI_COUNTER2_DIV >> 8;
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wmb();
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return 0;
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}
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static struct clock_event_device a20r_clockevent_device = {
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.name = "a20r-timer",
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.features = CLOCK_EVT_FEAT_PERIODIC,
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.name = "a20r-timer",
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.features = CLOCK_EVT_FEAT_PERIODIC,
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/* .mult, .shift, .max_delta_ns and .min_delta_ns left uninitialized */
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.rating = 300,
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.irq = SNI_A20R_IRQ_TIMER,
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.set_mode = a20r_set_mode,
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.rating = 300,
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.irq = SNI_A20R_IRQ_TIMER,
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.set_state_periodic = a20r_set_periodic,
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};
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static irqreturn_t a20r_interrupt(int irq, void *dev_id)
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