From: "Terje Bergström" <tbergstrom-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Thierry Reding
<thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
Cc: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH 1/2] ARM: tegra: Add Tegra20 host1x support
Date: Thu, 15 Nov 2012 08:56:17 +0200 [thread overview]
Message-ID: <50A49211.4060303@nvidia.com> (raw)
In-Reply-To: <20121114200415.GA10335-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
On 14.11.2012 22:04, Thierry Reding wrote:
> According to tegra20_clocks_data.c, the maximum clock frequency for
> host1x is 166 MHz, so 216 is probably not a good idea. 150 MHz sounds
> sensible, though.
>
> I was going to send a new version of the patch set tonight, but I'll
> wait until I can test it tomorrow and once Terje has reported back that
> things work fine.
Hi,
I tried with 150MHz, 133.3MHz, 100MHz and as an act of desperation
300MHz. None of them worked. pll_p with 216MHz seems to be the only
option that works on my board.
But, as said, this seems to affect only the case where nvhost is
integrated, too, so your patch creates a working DRM and frame buffer,
so I'm fine with leaving it as it was in the original patch set.
Meanwhile, we need to figure out if we somehow misprogram PLLC or host1x
clock when it's attached to PLLC on Tegra20.
Terje
next prev parent reply other threads:[~2012-11-15 6:56 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-09 13:20 [PATCH 0/2] Device tree updates for host1x support Thierry Reding
2012-11-09 13:20 ` [PATCH 1/2] ARM: tegra: Add Tegra20 " Thierry Reding
2012-11-13 7:45 ` Mark Zhang
[not found] ` <50A1FA7C.4010507-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-13 7:52 ` Thierry Reding
[not found] ` <20121113075247.GB8409-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-13 8:00 ` Mark Zhang
[not found] ` <50A1FE2F.8000107-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-13 8:04 ` Thierry Reding
2012-11-13 8:29 ` Mark Zhang
[not found] ` <1352467202-27903-2-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-11-12 9:39 ` Mark Zhang
[not found] ` <50A0C3BF.90509-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-13 4:38 ` Mark Zhang
[not found] ` <50A1CECA.3090804-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-13 6:41 ` Thierry Reding
[not found] ` <20121113064135.GA31443-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-13 7:37 ` Mark Zhang
2012-11-14 8:35 ` Terje Bergström
[not found] ` <50A357D3.9080002-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-14 8:49 ` Thierry Reding
[not found] ` <20121114084931.GA31837-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-14 10:23 ` Terje Bergström
[not found] ` <50A3712E.7000104-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-14 10:54 ` Thierry Reding
2012-11-14 16:19 ` Stephen Warren
[not found] ` <50A3C485.7080704-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-11-14 16:45 ` Terje Bergström
[not found] ` <50A3CAA3.2060908-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-14 18:12 ` Stephen Warren
2012-11-14 20:04 ` Thierry Reding
[not found] ` <20121114200415.GA10335-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-14 20:15 ` Stephen Warren
[not found] ` <50A3FBFA.3080008-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-11-14 20:21 ` Thierry Reding
2012-11-15 6:56 ` Terje Bergström [this message]
2012-11-15 7:11 ` Thierry Reding
2012-11-14 15:01 ` Thierry Reding
[not found] ` <20121114150125.GA11050-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-14 15:29 ` Terje Bergström
[not found] ` <50A3B8DD.7010607-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-14 15:33 ` Thierry Reding
2012-11-09 13:20 ` [PATCH 2/2] ARM: tegra: Add Tegra30 " Thierry Reding
[not found] ` <1352467202-27903-3-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-11-13 4:37 ` Mark Zhang
2012-11-13 7:45 ` Mark Zhang
[not found] ` <50A1FAB0.8040700-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-13 7:53 ` Thierry Reding
[not found] ` <1352467202-27903-1-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2012-11-09 17:34 ` [PATCH 0/2] Device tree updates for " Stephen Warren
[not found] ` <509D3EB1.8040703-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-11-09 18:44 ` Thierry Reding
[not found] ` <20121109184409.GB7663-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-11-09 21:10 ` Stephen Warren
[not found] ` <509D7145.9000203-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-11-15 8:21 ` Prashant Gaikwad
2012-11-15 8:50 ` Thierry Reding
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