[PATCH v2 9/9] OMAP2+: clockevent: set up GPTIMER clockevent hwmod right before timer init

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Set up the GPTIMER hwmod used for the clockevent source immediately
before it is used.  This avoids the need to set up all of the hwmods
until the boot process is further along.  (In general, we want to defer
as much as possible until late in the boot process.)

This second version fixes a bug pointed out by Santosh Shilimkar
<santosh.shilimkar@xxxxxx>, that would cause the kernel to use an
incorrect timer hwmod name if the selected GPTIMER was not 1 or 12 -
thanks Santosh.  Also, Tarun Kanti DebBarma <tarun.kanti@xxxxxx>
pointed out that the original patch did not apply cleanly; this has
now been fixed.

Signed-off-by: Paul Walmsley <paul@xxxxxxxxx>
Cc: BenoÃt Cousson <b-cousson@xxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Acked-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Tarun Kanti DebBarma <tarun.kanti@xxxxxx>
---
 arch/arm/mach-omap2/timer-gp.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/timer-gp.c b/arch/arm/mach-omap2/timer-gp.c
index 7b7c268..fb8d656 100644
--- a/arch/arm/mach-omap2/timer-gp.c
+++ b/arch/arm/mach-omap2/timer-gp.c
@@ -39,10 +39,11 @@
 #include <asm/mach/time.h>
 #include <plat/dmtimer.h>
 #include <asm/localtimer.h>
+#include <plat/common.h>
+#include <plat/omap_hwmod.h>
 
 #include "timer-gp.h"
 
-#include <plat/common.h>
 
 /* MAX_GPTIMER_ID: number of GPTIMERs on the chip */
 #define MAX_GPTIMER_ID		12
@@ -132,9 +133,13 @@ static void __init omap2_gp_clockevent_init(void)
 {
 	u32 tick_rate;
 	int src;
+	char clockevent_hwmod_name[8]; /* 8 = sizeof("timerXX0") */
 
 	inited = 1;
 
+	sprintf(clockevent_hwmod_name, "timer%d", gptimer_id);
+	omap_hwmod_setup_one(clockevent_hwmod_name);
+
 	gptimer = omap_dm_timer_request_specific(gptimer_id);
 	BUG_ON(gptimer == NULL);
 	gptimer_wakeup = gptimer;


--
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


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux