From: Tony Lindgren <tony@atomide.com>
To: "Mohammed, Afzal" <afzal@ti.com>
Cc: "Hunter, Jon" <jon-hunter@ti.com>,
"paul@pwsan.com" <paul@pwsan.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 3/3] ARM: OMAP2+: gpmc: handle additional timings
Date: Thu, 14 Jun 2012 05:29:31 -0700 [thread overview]
Message-ID: <20120614122930.GM12766@atomide.com> (raw)
In-Reply-To: <C8443D0743D26F4388EA172BF4E2A7A93E999AA4@DBDE01.ent.ti.com>
* Mohammed, Afzal <afzal@ti.com> [120614 05:00]:
> Hi Tony,
>
> On Thu, Jun 14, 2012 at 17:22:08, Tony Lindgren wrote:
> > * Mohammed, Afzal <afzal@ti.com> [120614 03:43]:
> > > + t.clk_activation = fclk_offset_ns;
> > > +
> >
> > This too should be fclk_offset, not fclk_offset_ns.
>
> As gpmc_cs_set_timing convert it to ticks from ns,
> shouldn't we put it in ns ?
Hmm I see, something's wrong though.. Some of these we really
want to specify as ticks instead of ns. Your patch was using
1 tick value as 1 ns value, which won't work. When I changed
it back to what I thought was ticks, it just happened to work
probably because of rounding. That's probably the reason why
some of these have been set directly with gpmc_cs_write_reg
as that sets tick values directly.
It seems that we need to still allow both ns and tick values.
Regards,
Tony
WARNING: multiple messages have this Message-ID (diff)
From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] ARM: OMAP2+: gpmc: handle additional timings
Date: Thu, 14 Jun 2012 05:29:31 -0700 [thread overview]
Message-ID: <20120614122930.GM12766@atomide.com> (raw)
In-Reply-To: <C8443D0743D26F4388EA172BF4E2A7A93E999AA4@DBDE01.ent.ti.com>
* Mohammed, Afzal <afzal@ti.com> [120614 05:00]:
> Hi Tony,
>
> On Thu, Jun 14, 2012 at 17:22:08, Tony Lindgren wrote:
> > * Mohammed, Afzal <afzal@ti.com> [120614 03:43]:
> > > + t.clk_activation = fclk_offset_ns;
> > > +
> >
> > This too should be fclk_offset, not fclk_offset_ns.
>
> As gpmc_cs_set_timing convert it to ticks from ns,
> shouldn't we put it in ns ?
Hmm I see, something's wrong though.. Some of these we really
want to specify as ticks instead of ns. Your patch was using
1 tick value as 1 ns value, which won't work. When I changed
it back to what I thought was ticks, it just happened to work
probably because of rounding. That's probably the reason why
some of these have been set directly with gpmc_cs_write_reg
as that sets tick values directly.
It seems that we need to still allow both ns and tick values.
Regards,
Tony
next prev parent reply other threads:[~2012-06-14 12:29 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-11 14:01 [PATCH 0/3] Prepare for GPMC driver conversion Afzal Mohammed
2012-06-11 14:01 ` Afzal Mohammed
2012-06-11 14:01 ` [PATCH 1/3] ARM: OMAP2+: nand: unify init functions Afzal Mohammed
2012-06-11 14:01 ` Afzal Mohammed
2012-06-11 15:43 ` Jon Hunter
2012-06-11 15:43 ` Jon Hunter
2012-06-12 5:50 ` Mohammed, Afzal
2012-06-12 5:50 ` Mohammed, Afzal
2012-06-11 14:01 ` [PATCH 2/3] ARM: OMAP2+: onenand: cleanup for gpmc driver conversion Afzal Mohammed
2012-06-11 14:01 ` Afzal Mohammed
2012-06-11 18:36 ` Jon Hunter
2012-06-11 18:36 ` Jon Hunter
2012-06-12 6:16 ` Mohammed, Afzal
2012-06-12 6:16 ` Mohammed, Afzal
2012-06-12 17:30 ` Jon Hunter
2012-06-12 17:30 ` Jon Hunter
2012-06-13 5:03 ` Mohammed, Afzal
2012-06-13 5:03 ` Mohammed, Afzal
2012-06-13 16:38 ` Jon Hunter
2012-06-13 16:38 ` Jon Hunter
2012-06-14 5:40 ` Mohammed, Afzal
2012-06-14 5:40 ` Mohammed, Afzal
2012-06-14 17:53 ` Jon Hunter
2012-06-14 17:53 ` Jon Hunter
2012-06-15 6:52 ` Mohammed, Afzal
2012-06-15 6:52 ` Mohammed, Afzal
2012-06-11 14:02 ` [PATCH 3/3] ARM: OMAP2+: gpmc: handle additional timings Afzal Mohammed
2012-06-11 14:02 ` Afzal Mohammed
2012-06-11 18:49 ` Jon Hunter
2012-06-11 18:49 ` Jon Hunter
2012-06-12 6:37 ` Mohammed, Afzal
2012-06-12 6:37 ` Mohammed, Afzal
2012-06-12 17:36 ` Jon Hunter
2012-06-12 17:36 ` Jon Hunter
2012-06-13 4:56 ` Mohammed, Afzal
2012-06-13 4:56 ` Mohammed, Afzal
2012-06-13 11:32 ` Tony Lindgren
2012-06-13 11:32 ` Tony Lindgren
2012-06-13 11:54 ` Tony Lindgren
2012-06-13 11:54 ` Tony Lindgren
2012-06-13 11:58 ` Mohammed, Afzal
2012-06-13 11:58 ` Mohammed, Afzal
2012-06-14 10:10 ` Mohammed, Afzal
2012-06-14 10:10 ` Mohammed, Afzal
2012-06-14 10:19 ` Tony Lindgren
2012-06-14 10:19 ` Tony Lindgren
2012-06-14 10:39 ` Mohammed, Afzal
2012-06-14 10:39 ` Mohammed, Afzal
2012-06-14 11:49 ` Tony Lindgren
2012-06-14 11:49 ` Tony Lindgren
2012-06-14 11:59 ` Mohammed, Afzal
2012-06-14 11:59 ` Mohammed, Afzal
2012-06-14 12:09 ` Mohammed, Afzal
2012-06-14 12:09 ` Mohammed, Afzal
2012-06-14 12:21 ` Mohammed, Afzal
2012-06-14 12:21 ` Mohammed, Afzal
2012-06-14 12:30 ` Tony Lindgren
2012-06-14 12:30 ` Tony Lindgren
2012-06-14 11:52 ` Tony Lindgren
2012-06-14 11:52 ` Tony Lindgren
2012-06-14 11:56 ` Mohammed, Afzal
2012-06-14 11:56 ` Mohammed, Afzal
2012-06-14 12:29 ` Tony Lindgren [this message]
2012-06-14 12:29 ` Tony Lindgren
2012-06-14 12:53 ` Mohammed, Afzal
2012-06-14 12:53 ` Mohammed, Afzal
2012-06-14 16:53 ` Tony Lindgren
2012-06-14 16:53 ` Tony Lindgren
2012-06-15 5:42 ` Mohammed, Afzal
2012-06-15 5:42 ` Mohammed, Afzal
2012-06-15 6:16 ` Mohammed, Afzal
2012-06-15 6:16 ` Mohammed, Afzal
2012-06-15 10:45 ` Tony Lindgren
2012-06-15 10:45 ` Tony Lindgren
2012-06-15 10:49 ` Mohammed, Afzal
2012-06-15 10:49 ` Mohammed, Afzal
2012-06-13 12:34 ` Mohammed, Afzal
2012-06-13 12:34 ` Mohammed, Afzal
2012-06-13 12:42 ` Tony Lindgren
2012-06-13 12:42 ` Tony Lindgren
2012-06-13 14:04 ` Mohammed, Afzal
2012-06-13 14:04 ` Mohammed, Afzal
2012-06-14 6:32 ` Tony Lindgren
2012-06-14 6:32 ` Tony Lindgren
2012-06-14 9:29 ` Tony Lindgren
2012-06-14 9:29 ` Tony Lindgren
2012-06-14 9:41 ` Mohammed, Afzal
2012-06-14 9:41 ` Mohammed, Afzal
2012-06-14 11:23 ` Tony Lindgren
2012-06-14 11:23 ` Tony Lindgren
2012-06-12 10:27 ` [PATCH 0/3] Prepare for GPMC driver conversion Mohammed, Afzal
2012-06-12 10:27 ` Mohammed, Afzal
2012-06-13 11:33 ` Tony Lindgren
2012-06-13 11:33 ` Tony Lindgren
2012-06-13 12:40 ` Mohammed, Afzal
2012-06-13 12:40 ` Mohammed, Afzal
2012-06-13 16:46 ` Jon Hunter
2012-06-13 16:46 ` Jon Hunter
2012-06-14 5:58 ` Mohammed, Afzal
2012-06-14 5:58 ` Mohammed, Afzal
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