Inorder to move non-DM timer specific code that modifies the "idlect"
mask on OMAP1, from dmtimer code, to OMAP1 specific timer initialization code,
we introduce a new function that can possibly be reused for other purposes in
the future. The function just checks if a timer is running based on the timer ID
which should be same as pdev->id. This allows us to cleanly separate the timer vs
non-timer bits and keep the timer bits in the dmtimer code.
Signed-off-by: Joel Fernandes <joelf@xxxxxx>
---
arch/arm/plat-omap/dmtimer.c | 29 +++++++++++++++++++++++++++++
arch/arm/plat-omap/include/plat/dmtimer.h | 2 ++
2 files changed, 31 insertions(+)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 4debb3d..86b2641 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -187,6 +187,35 @@ int omap_dm_timer_reserve_systimer(int id)
return 0;
}
+/*
+ * Check if a timer is running based on timer_id, used for OMAP1 currently.
+ */
+int omap_dm_timer_is_running(int timer_id)
+{
+ int i = 1, ret = 0;
+ struct omap_dm_timer *timer = NULL;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dm_timer_lock, flags);
+ list_for_each_entry(timer, &omap_timer_list, node) {
+ if (i == timer_id) {
+ u32 l;
+ l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);
+ if (l & OMAP_TIMER_CTRL_ST) {
+ ret = 1;
+ goto done;
+ } else {
+ goto done;
+ }
+ }
+ i++;
+ }
+done:
+ spin_unlock_irqrestore(&dm_timer_lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(omap_dm_timer_is_running);
+
static struct omap_dm_timer *_omap_dm_timer_request(int req_type, void *data)
{
struct omap_dm_timer *timer = NULL, *t;
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 2861b15..41df0a6 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -135,6 +135,8 @@ void omap_dm_timer_disable(struct omap_dm_timer *timer);
int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
+int omap_dm_timer_is_running(int timer_id);
+
u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer);
--
1.7.9.5
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