[PATCH FOR v3.10 v2] ARM: shmobile: kzm9g-reference: Update CMT clocksource rating to 80

[PATCH FOR v3.10 v2] ARM: shmobile: kzm9g-reference: Update CMT clocksource rating to 80

[Simon Horman]

Update the CMT clocksource rating from 125 to 80.

This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1
introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp:
Avoid dummy clockevent being preferred over real").

The patch noted above reduces the rating of dummy clockevent from 400 to 100.
This patch reduces the rating of CMT so that it is once again less than that
of the dummy clockevent.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

---

I also plan to reduce the rating of the STI clocksource to less than 100.
However, as I am not aware of any problems relating to STI in v3.10-rc
my plan is to update STI in the v3.11 timeframe.
---
 arch/arm/mach-shmobile/setup-sh73a0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index fdf3894..9696f36 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -252,7 +252,7 @@ static struct sh_timer_config cmt10_platform_data = {
 	.name = "CMT10",
 	.channel_offset = 0x10,
 	.timer_bit = 0,
-	.clockevent_rating = 125,
+	.clockevent_rating = 80,
 	.clocksource_rating = 125,
 };
 
-- 
1.8.2.1

Re: [PATCH FOR v3.10 v2] ARM: shmobile: kzm9g-reference: Update CMT clocksource rating to 80

[Sergei Shtylyov]

On 22-05-2013 18:13, Simon Horman wrote:

> Update the CMT clocksource rating from 125 to 80.

> This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1
> introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp:
> Avoid dummy clockevent being preferred over real").

> The patch noted above reduces the rating of dummy clockevent from 400 to 100.
> This patch reduces the rating of CMT so that it is once again less than that
> of the dummy clockevent.

> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

> ---

> I also plan to reduce the rating of the STI clocksource to less than 100.
> However, as I am not aware of any problems relating to STI in v3.10-rc
> my plan is to update STI in the v3.11 timeframe.
> ---
>   arch/arm/mach-shmobile/setup-sh73a0.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)

    BTW, shouldn't the subject be "ARM: shmobile: sh73a0: Update CMT 
clocksource rating to 80"?

WBR, Sergei

Re: [PATCH FOR v3.10 v2] ARM: shmobile: kzm9g-reference: Update CMT clocksource rating to 80

[Simon Horman]

On Wed, May 22, 2013 at 06:19:28PM +0400, Sergei Shtylyov wrote:
> On 22-05-2013 18:13, Simon Horman wrote:
> 
> >Update the CMT clocksource rating from 125 to 80.
> 
> >This resolves a boot-failure regression for kzm9g-reference in v3.10-rc1
> >introduced by f7db706b132f11c79ae1d74b2382e0926cf31644 ("ARM: 7674/1: smp:
> >Avoid dummy clockevent being preferred over real").
> 
> >The patch noted above reduces the rating of dummy clockevent from 400 to 100.
> >This patch reduces the rating of CMT so that it is once again less than that
> >of the dummy clockevent.
> 
> >Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
> 
> >---
> 
> >I also plan to reduce the rating of the STI clocksource to less than 100.
> >However, as I am not aware of any problems relating to STI in v3.10-rc
> >my plan is to update STI in the v3.11 timeframe.
> >---
> >  arch/arm/mach-shmobile/setup-sh73a0.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> 
>    BTW, shouldn't the subject be "ARM: shmobile: sh73a0: Update CMT
> clocksource rating to 80"?

Yes, silly me.

I'll fix that.