From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 02/10] ARM: imx: allow timer counter to roll over
Date: Tue, 23 Oct 2012 23:22:51 +0800 [thread overview]
Message-ID: <1351005779-30347-3-git-send-email-shawn.guo@linaro.org> (raw)
In-Reply-To: <1351005779-30347-1-git-send-email-shawn.guo@linaro.org>
The timer is configured in free-run mode. The counter should be
allowed to roll over to 0 when reaching 0xffffffff. Let's do that
by always returning 0 in set_next_event.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
arch/arm/mach-imx/time.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index f017302..858098c 100644
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -139,8 +139,7 @@ static int mx1_2_set_next_event(unsigned long evt,
__raw_writel(tcmp, timer_base + MX1_2_TCMP);
- return (int)(tcmp - __raw_readl(timer_base + MX1_2_TCN)) < 0 ?
- -ETIME : 0;
+ return 0;
}
static int v2_set_next_event(unsigned long evt,
@@ -152,8 +151,7 @@ static int v2_set_next_event(unsigned long evt,
__raw_writel(tcmp, timer_base + V2_TCMP);
- return (int)(tcmp - __raw_readl(timer_base + V2_TCN)) < 0 ?
- -ETIME : 0;
+ return 0;
}
#ifdef DEBUG
--
1.7.9.5
next prev parent reply other threads:[~2012-10-23 15:22 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-23 15:22 [PATCH 00/10] Support imx6q WAIT mode with coupled cpuidle Shawn Guo
2012-10-23 15:22 ` [PATCH 01/10] ARM: imx6q: print silicon version on boot Shawn Guo
2012-11-15 18:09 ` Moseley, Drew
2012-11-16 2:23 ` Shawn Guo
2012-11-16 6:25 ` Dirk Behme
2012-11-16 6:54 ` Shawn Guo
2012-11-16 6:39 ` Shawn Guo
2012-10-23 15:22 ` Shawn Guo [this message]
2012-10-23 15:22 ` [PATCH 03/10] ARM: imx6q: select ARM and PL310 errata Shawn Guo
2013-11-28 12:44 ` Dirk Behme
2013-11-29 2:10 ` Shawn Guo
2012-10-23 15:22 ` [PATCH 04/10] ARM: imx: initialize cpu power up counters Shawn Guo
2012-10-23 15:22 ` [PATCH 05/10] ARM: imx: mask gpc interrupts initially Shawn Guo
2012-10-23 15:22 ` [PATCH 06/10] ARM: imx6q: prepare imx6q_set_lpm for cpudile support Shawn Guo
2012-10-23 15:22 ` [PATCH 07/10] ARM: imx6q: get v7_cpu_resume ready for cpuidle Shawn Guo
2012-10-23 15:22 ` [PATCH 08/10] ARM: imx: move imx6q_cpuidle_driver into a separate file Shawn Guo
2012-10-23 15:22 ` [PATCH 09/10] ARM: SMP: add function arch_send_wakeup_ipi_mask() Shawn Guo
2012-10-31 3:43 ` Shawn Guo
2012-11-02 13:42 ` Shawn Guo
2012-11-06 3:18 ` Shawn Guo
2012-10-23 15:22 ` [PATCH 10/10] ARM: imx6q: implement WAIT mode with coupled cpuidle Shawn Guo
2012-10-23 16:09 ` Lee Robert-B18647
2012-10-24 14:04 ` Shawn Guo
2012-10-23 17:35 ` Lorenzo Pieralisi
2012-10-24 13:57 ` Shawn Guo
2012-10-24 15:29 ` Lorenzo Pieralisi
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1351005779-30347-3-git-send-email-shawn.guo@linaro.org \
--to=shawn.guo@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).