ARM: OMAP: Remove timer function pointer for context loss counter

For OMAP2+ devices, a function pointer that returns the number of times a timer
power domain has lost context is passed to the dmtimer driver. This function
pointer is only populated for OMAP2+ devices and it is pointing to a platform
function. Given that this is a platform function, we can simplify the code by
removing the function pointer and referencing the function directly. We can use
the OMAP_TIMER_ALWON flag to determine if we need to call this function for
OMAP1 and OMAP2+ devices.

The benefit of this change is the we can remove the function pointer from the
platform data and simplifies the dmtimer migration to device-tree.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 7 insertions, 10 deletions

diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 7aa12785e238..7875eefd0474 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -42,6 +42,7 @@
 #include <linux/pm_runtime.h>
 
 #include <plat/dmtimer.h>
+#include <plat/omap-pm.h>
 
 #include <mach/hardware.h>
 
@@ -342,9 +343,8 @@ int omap_dm_timer_start(struct omap_dm_timer *timer)
         omap_dm_timer_enable(timer);
 
         if (!(timer->capability & OMAP_TIMER_ALWON)) {
-                u32 ctx_loss_cnt_after =
-                        timer->get_context_loss_count(&timer->pdev->dev);
-                if (ctx_loss_cnt_after != timer->ctx_loss_count)
+                if (omap_pm_get_dev_context_loss_count(&timer->pdev->dev) !=
+                                timer->ctx_loss_count)
                         omap_timer_restore_context(timer);
         }
 
@@ -374,10 +374,9 @@ int omap_dm_timer_stop(struct omap_dm_timer *timer)
 
         __omap_dm_timer_stop(timer, timer->posted, rate);
 
-        if (!(timer->capability & OMAP_TIMER_ALWON) &&
-                        timer->get_context_loss_count)
+        if (!(timer->capability & OMAP_TIMER_ALWON))
                 timer->ctx_loss_count =
-                        timer->get_context_loss_count(&timer->pdev->dev);
+                        omap_pm_get_dev_context_loss_count(&timer->pdev->dev);
 
         /*
          * Since the register values are computed and written within
@@ -449,9 +448,8 @@ int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,
         omap_dm_timer_enable(timer);
 
         if (!(timer->capability & OMAP_TIMER_ALWON)) {
-                u32 ctx_loss_cnt_after =
-                        timer->get_context_loss_count(&timer->pdev->dev);
-                if (ctx_loss_cnt_after != timer->ctx_loss_count)
+                if (omap_pm_get_dev_context_loss_count(&timer->pdev->dev) !=
+                                timer->ctx_loss_count)
                         omap_timer_restore_context(timer);
         }
 
@@ -693,7 +691,6 @@ static int __devinit omap_dm_timer_probe(struct platform_device *pdev)
         timer->irq = irq->start;
         timer->reserved = omap_dm_timer_reserved_systimer(timer->id);
         timer->pdev = pdev;
-        timer->get_context_loss_count = pdata->get_context_loss_count;
         timer->capability = pdata->timer_capability;
 
         /* Skip pm_runtime_enable for OMAP1 */