RE: [PATCH 1/1] OMAP3:WDT:Enable clk in probe, trigger timer reload

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> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Hugo Vincent
> Sent: Saturday, June 13, 2009 9:28 AM
> To: Kevin Hilman
> Cc: Hald, Ulrik Bech; linux-omap@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH 1/1] OMAP3:WDT:Enable clk in probe, 
> trigger timer reload
> 
> On Sat, Jun 13, 2009 at 4:13 AM, Kevin
> Hilman<khilman@xxxxxxxxxxxxxxxxxxx> wrote:
> > Ulrik Bech Hald <ubh@xxxxxx> writes:
> >
> >> This patch contains two bugfixes:
> >>
> >> 1)In omap_wdt_probe() the watchdog is reset and disabled. This
> >> requires register access and the clks needs to be enabled 
> temporarily
> >>
> >> 2)In omap_wdt_open() the timer register needs to be reloaded
> >> to trigger a new timer value (the default of 60s)
> >>
> >> Signed-off-by: Ulrik Bech Hald <ubh@xxxxxx>
> >
> > Can you change the subject slightly to something like:
> >
> >  watchdog: OMAP fixes: enable clock in probe, trigger timer reload
> >
> > Also add which OMAP platforms you have tested on since this affects
> > OMAP2, OMAP3 and presuably OMAP4.
> 
> Tested on OMAP3 (OMAP3503, Gumstix Overo).
> 
> > After that, you can add
> >
> > Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxxxxx>
> >
> > And sent to watchdog maintiner, and CC linux-omap, here's 
> excerpt from
> > MAINTAINERS:
> >
> > WATCHDOG DEVICE DRIVERS
> > P:      Wim Van Sebroeck
> > M:      wim@xxxxxxxxx
> > T:      git 
> git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-wa
tchdog.git
> > S:      Maintained
> > F:      Documentation/watchdog/
> > F:      drivers/watchdog/
> > F:      include/linux/watchdog.h
> >
> >> ---
> >>  drivers/watchdog/omap_wdt.c |    7 +++++++
> >>  1 files changed, 7 insertions(+), 0 deletions(-)
> >>  mode change 100644 => 100755 drivers/watchdog/omap_wdt.c
> >>
> >> diff --git a/drivers/watchdog/omap_wdt.c 
> b/drivers/watchdog/omap_wdt.c

> >> old mode 100644
> >> new mode 100755

This change is also unnecessary.
Can be avoided in the follow-up submission.

~sanjeev

> >> index f271385..3ed571a
> >> --- a/drivers/watchdog/omap_wdt.c
> >> +++ b/drivers/watchdog/omap_wdt.c
> >> @@ -159,6 +159,7 @@ static int omap_wdt_open(struct inode 
> *inode, struct file *file)
> >>       file->private_data = (void *) wdev;
> >>
> >>       omap_wdt_set_timeout(wdev);
> >> +     omap_wdt_ping(wdev); /* trigger loading of new 
> timeout value */
> >>       omap_wdt_enable(wdev);
> >>
> >>       return nonseekable_open(inode, file);
> >> @@ -313,6 +314,9 @@ static int __devinit 
> omap_wdt_probe(struct platform_device *pdev)
> >>
> >>       platform_set_drvdata(pdev, wdev);
> >>
> >> +     clk_enable(wdev->ick);
> >> +     clk_enable(wdev->fck);
> >> +
> >>       omap_wdt_disable(wdev);
> >>       omap_wdt_adjust_timeout(timer_margin);
> >>
> >> @@ -332,6 +336,9 @@ static int __devinit 
> omap_wdt_probe(struct platform_device *pdev)
> >>       /* autogate OCP interface clock */
> >>       __raw_writel(0x01, wdev->base + OMAP_WATCHDOG_SYS_CONFIG);
> >>
> >> +     clk_disable(wdev->ick);
> >> +     clk_disable(wdev->fck);
> >> +
> >>       omap_wdt_dev = pdev;
> >>
> >>       return 0;
> >> --
> >> 1.5.4.3
> >>
> >> --
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