sh: APM/PM support.

This adds some simple PM stubs and the basic APM interfaces,
primarily for use by hp6xx, where the existing userland
expects it.

Signed-off-by: Andriy Skulysh <askulysh@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 16 insertions, 2 deletions

diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index d4212add53b2..ea4bdf8cdf0d 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -188,6 +188,18 @@ static struct clk tmu0_clk = {
         .ops            = &tmu_clk_ops,
 };
 
+static int tmu_timer_start(void)
+{
+        ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
+        return 0;
+}
+
+static int tmu_timer_stop(void)
+{
+        ctrl_outb(0, TMU_TSTR);
+        return 0;
+}
+
 static int tmu_timer_init(void)
 {
         unsigned long interval;
@@ -197,7 +209,7 @@ static int tmu_timer_init(void)
         tmu0_clk.parent = clk_get("module_clk");
 
         /* Start TMU0 */
-        ctrl_outb(0, TMU_TSTR);
+        tmu_timer_stop();
 #if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760)
         ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
 #endif
@@ -211,13 +223,15 @@ static int tmu_timer_init(void)
         ctrl_outl(interval, TMU0_TCOR);
         ctrl_outl(interval, TMU0_TCNT);
 
-        ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
+        tmu_timer_start();
 
         return 0;
 }
 
 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,
         .get_offset     = tmu_timer_get_offset,
 };