From: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
To: Shubhrajyoti D <shubhrajyoti-l0cyMroinI0@public.gmane.org>
Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org,
tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
b-cousson-l0cyMroinI0@public.gmane.org,
w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org
Subject: Re: [PATCHv2 7/7] i2c: omap: Restore i2c context always
Date: Mon, 5 Nov 2012 09:56:27 +0200 [thread overview]
Message-ID: <20121105075627.GH32468@arwen.pp.htv.fi> (raw)
In-Reply-To: <1352025873-27492-8-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 1744 bytes --]
Hi,
On Sun, Nov 04, 2012 at 04:14:33PM +0530, Shubhrajyoti D wrote:
> Currently the restore is done based on the flag
> OMAP_I2C_FLAG_RESET_REGS_POSTIDLE.
>
> This helps the following
> - The driver is always capable of restoring regardless
> of the off mode support being there or not.
>
> - While testing omap2430 it is found that in case of certain
> error paths (timeout) a reset is done. However the restore
> never happens as it is dependent on the POSTIDLE flag.
> The other option would be to call a restore in the reset
> case. As there are only a few registers to be restored
> the penalty in the idle case should not be much.
>
> Signed-off-by: Shubhrajyoti D <shubhrajyoti-l0cyMroinI0@public.gmane.org>
Looks ok to me, one less unnecessary flag.
Reviewed-by: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
> ---
> Todo: the flag could be deleted if the patch is accepted.
>
> drivers/i2c/busses/i2c-omap.c | 3 +--
> 1 files changed, 1 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
> index 70d43b7..f66c5ab 100644
> --- a/drivers/i2c/busses/i2c-omap.c
> +++ b/drivers/i2c/busses/i2c-omap.c
> @@ -1314,8 +1314,7 @@ static int omap_i2c_runtime_resume(struct device *dev)
> if (!_dev->regs)
> return 0;
>
> - if (_dev->flags & OMAP_I2C_FLAG_RESET_REGS_POSTIDLE)
> - __omap_i2c_init(_dev);
> + __omap_i2c_init(_dev);
>
> return 0;
> }
> --
> 1.7.5.4
>
> --
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--
balbi
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next prev parent reply other threads:[~2012-11-05 7:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-04 10:44 [PATCHv2 0/7] i2c: omap: updates Shubhrajyoti D
2012-11-04 10:44 ` [PATCHv2 5/7] i2c: omap: re-factor omap_i2c_init function Shubhrajyoti D
[not found] ` <1352025873-27492-6-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:54 ` Felipe Balbi
2012-11-04 10:44 ` [PATCHv2 6/7] i2c: omap: make reset a seperate function Shubhrajyoti D
2012-11-05 7:55 ` Felipe Balbi
[not found] ` <1352025873-27492-1-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-04 10:44 ` [PATCHv2 1/7] i2c: omap: Fix the revision register read Shubhrajyoti D
[not found] ` <1352025873-27492-2-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:50 ` Felipe Balbi
2012-11-05 8:34 ` Shubhrajyoti
[not found] ` <50977A30.6040907-l0cyMroinI0@public.gmane.org>
2012-11-05 9:04 ` Felipe Balbi
2012-11-05 9:24 ` Shubhrajyoti Datta
2012-11-05 10:01 ` Felipe Balbi
[not found] ` <20121105100105.GC3327-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2012-11-05 10:45 ` Felipe Balbi
2012-11-05 9:40 ` Shubhrajyoti Datta
2012-11-04 10:44 ` [PATCHv2 2/7] i2c: omap: use revision check for OMAP_I2C_FLAG_APPLY_ERRATA_I207 Shubhrajyoti D
[not found] ` <1352025873-27492-3-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:51 ` Felipe Balbi
2012-11-04 10:44 ` [PATCHv2 3/7] i2c: omap: remove the dtrev Shubhrajyoti D
[not found] ` <1352025873-27492-4-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:53 ` Felipe Balbi
[not found] ` <20121105075320.GD32468-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2012-11-05 8:44 ` Shubhrajyoti
2012-11-05 9:05 ` Felipe Balbi
[not found] ` <20121105090517.GB2913-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2012-11-05 9:26 ` Shubhrajyoti
2012-11-04 10:44 ` [PATCHv2 4/7] ARM: i2c: omap: Remove the i207 errata flag Shubhrajyoti D
[not found] ` <1352025873-27492-5-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:53 ` Felipe Balbi
2012-11-04 10:44 ` [PATCHv2 7/7] i2c: omap: Restore i2c context always Shubhrajyoti D
[not found] ` <1352025873-27492-8-git-send-email-shubhrajyoti-l0cyMroinI0@public.gmane.org>
2012-11-05 7:56 ` Felipe Balbi [this message]
2012-11-05 7:46 ` [PATCHv2 0/7] i2c: omap: updates Felipe Balbi
2012-11-05 8:34 ` Shubhrajyoti
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