sh: Fixed the TMU0 reload value on resume

This patch fixes the TMU0 interrupt frequency on suspend/resume.
During the resume the kernel reprograms the TMU0.ClockEvent mode
but if the mode is periodic than the TMU0.TCOR is updated with
a random wrong value without taking care latest valid saved value.

There was no problem with No_HZ system where TMU0.TCOR isn't used.

Signed-off-by: Francesco M. Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index aaaf90d..3c61ddd 100644 (file)
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -120,7 +120,7 @@ static void tmu_set_mode(enum clock_event_mode mode,
 {
        switch (mode) {
        case CLOCK_EVT_MODE_PERIODIC:
-               ctrl_outl(ctrl_inl(TMU0_TCNT), TMU0_TCOR);
+               ctrl_outl(tmu_latest_interval[TMU0], TMU0_TCOR);
                break;
        case CLOCK_EVT_MODE_ONESHOT:
                ctrl_outl(0, TMU0_TCOR);