diff mbox

[v14,REPOST,10/12] OMAP: dmtimer: mark clocksource and clockevent timers reserved

Message ID 1310731501-13078-11-git-send-email-tarun.kanti@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tarun Kanti DebBarma July 15, 2011, 12:04 p.m. UTC
In driver probe use sys_timer_reserved to identify which all timers
have already been used for clocksource and clockevent. Mark all those
timers as reserved so that no one else can use them.

Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
---
 arch/arm/mach-omap1/timer.c  |    2 ++
 arch/arm/plat-omap/dmtimer.c |    8 ++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

Comments

Santosh Shilimkar Aug. 26, 2011, 3:44 p.m. UTC | #1
On Friday 15 July 2011 05:34 PM, Tarun Kanti DebBarma wrote:
> In driver probe use sys_timer_reserved to identify which all timers
> have already been used for clocksource and clockevent. Mark all those
> timers as reserved so that no one else can use them.
>
> Signed-off-by: Tarun Kanti DebBarma<tarun.kanti@ti.com>
> ---
Looks fine.
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Regards
Santosh
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diff mbox

Patch

diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
index 980b23b..0b318c7 100644
--- a/arch/arm/mach-omap1/timer.c
+++ b/arch/arm/mach-omap1/timer.c
@@ -41,6 +41,8 @@ 
 
 #define OMAP1_DM_TIMER_COUNT		8
 
+u32 sys_timer_reserved;
+
 static int omap1_dm_timer_set_src(struct platform_device *pdev,
 				int source)
 {
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index be55e42..8c8cb00 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -513,10 +513,14 @@  static int __devinit omap_dm_timer_probe(struct platform_device *pdev)
 	timer->irq = irq->start;
 	timer->pdev = pdev;
 
-	/* Skip pm_runtime_enable for OMAP1 */
-	if (!pdata->needs_manual_reset)
+	if (!pdata->needs_manual_reset) {
 		pm_runtime_enable(&pdev->dev);
 
+		/* Mark clocksource and clockevent timers as reserved */
+		if ((sys_timer_reserved >> (pdev->id - 1)) & 0x1)
+			timer->reserved = 1;
+	}
+
 	/* add the timer element to the list */
 	mutex_lock(&dm_timer_mutex);
 	list_add_tail(&timer->node, &omap_timer_list);