sh: Kill off timer_ops get_frequency().

We're not using this anywhere these days, kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 2 insertions, 56 deletions

diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index 205816fcf0da..badfedb455a9 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -111,60 +111,6 @@ static struct irqaction tmu_irq = {
         .mask           = CPU_MASK_NONE,
 };
 
-/*
- * Hah!  We'll see if this works (switching from usecs to nsecs).
- */
-static unsigned long tmu_timer_get_frequency(void)
-{
-        u32 freq;
-        struct timespec ts1, ts2;
-        unsigned long diff_nsec;
-        unsigned long factor;
-
-        /* Setup the timer:  We don't want to generate interrupts, just
-         * have it count down at its natural rate.
-         */
-        ctrl_outb(0, TMU_TSTR);
-#if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760)
-        ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
-#endif
-        ctrl_outw(TMU0_TCR_CALIB, TMU0_TCR);
-        ctrl_outl(0xffffffff, TMU0_TCOR);
-        ctrl_outl(0xffffffff, TMU0_TCNT);
-
-        rtc_sh_get_time(&ts2);
-
-        do {
-                rtc_sh_get_time(&ts1);
-        } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
-        /* actually start the timer */
-        ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-
-        do {
-                rtc_sh_get_time(&ts2);
-        } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
-        freq = 0xffffffff - ctrl_inl(TMU0_TCNT);
-        if (ts2.tv_nsec < ts1.tv_nsec) {
-                ts2.tv_nsec += 1000000000;
-                ts2.tv_sec--;
-        }
-
-        diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
-
-        /* this should work well if the RTC has a precision of n Hz, where
-         * n is an integer.  I don't think we have to worry about the other
-         * cases. */
-        factor = (1000000000 + diff_nsec/2) / diff_nsec;
-
-        if (factor * diff_nsec > 1100000000 ||
-            factor * diff_nsec <  900000000)
-                panic("weird RTC (diff_nsec %ld)", diff_nsec);
-
-        return freq * factor;
-}
-
 static void tmu_clk_init(struct clk *clk)
 {
         u8 divisor = TMU0_TCR_INIT & 0x7;
@@ -232,12 +178,12 @@ struct sys_timer_ops tmu_timer_ops = {
         .init           = tmu_timer_init,
         .start          = tmu_timer_start,
         .stop           = tmu_timer_stop,
-        .get_frequency  = tmu_timer_get_frequency,
+#ifndef CONFIG_GENERIC_TIME
         .get_offset     = tmu_timer_get_offset,
+#endif
 };
 
 struct sys_timer tmu_timer = {
         .name   = "tmu",
         .ops    = &tmu_timer_ops,
 };
-