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 uses them.
Call __omap_dm_timer_init_regs for the remaining timers so that their
base and offsets are configured correctly based upon timer ip version.
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@xxxxxx>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
---
arch/arm/plat-omap/dmtimer.c | 21 +++++++++++++++++----
arch/arm/plat-omap/include/plat/dmtimer.h | 1 +
2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 53821a3..9c9feb9 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -514,10 +514,23 @@ 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) {
- pm_runtime_enable(&pdev->dev);
- pm_runtime_irq_safe(&pdev->dev);
+/*
+ * sys_timer_reserved is not defined for OMAP1.
+ * Use the macro to avoid compilation error on OMAP1.
+ */
+#if defined(CONFIG_ARCH_OMAP2PLUS)
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_irq_safe(&pdev->dev);
+ /* Mark clocksource and clockevent timers as reserved */
+ if ((sys_timer_reserved >> (pdev->id - 1)) & 0x1)
+ timer->reserved = 1;
+#endif
+
+ if (!timer->reserved) {
+ pm_runtime_get_sync(&pdev->dev);
+ __omap_dm_timer_init_regs(timer);
+ timer->tidr = __raw_readl(timer->io_base);
+ pm_runtime_put(&pdev->dev);
}
/* add the timer element to the list */
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index e29adfa..6413fe2 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -246,6 +246,7 @@ struct omap_dm_timer {
void __iomem *pend; /* write pending */
void __iomem *func_base; /* function register base */
+ u32 tidr; /* TIDR register value */
unsigned long rate;
unsigned reserved:1;
unsigned posted:1;
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
