From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Thierry Reding
<thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
Cc: "Mike Turquette"
<mturquette-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Peter De Schrijver"
<pdeschrijver-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"Prashant Gaikwad"
<pgaikwad-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"Terje Bergström"
<tbergstrom-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH 2/2] clk: tegra: Make gr2d and gr3d clocks children of pll_c
Date: Fri, 29 Mar 2013 15:46:44 -0600 [thread overview]
Message-ID: <51560BC4.8020400@wwwdotorg.org> (raw)
In-Reply-To: <1364502688-5135-2-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
On 03/28/2013 02:31 PM, Thierry Reding wrote:
> By default these clocks are children of pll_m, but in downstream kernels
> they are reparented to pll_c. While at it, decrease their frequencies to
> 300 MHz because the defaults aren't in the specified range.
>
> gr2d can reportedly run at much higher frequencies, but 300 MHz works
> and is a more conservative default.
Questions on this patch:
Do we need to do the same thing for Tegra30 and/or Tegra114?
Is 300MHz the right value?
I'm hoping that Peter, Prashant, and/or Terje can provide guidance here.
next prev parent reply other threads:[~2013-03-29 21:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-28 20:31 [PATCH 1/2] clk: tegra: Export peripheral reset functions Thierry Reding
[not found] ` <1364502688-5135-1-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2013-03-28 20:31 ` [PATCH 2/2] clk: tegra: Make gr2d and gr3d clocks children of pll_c Thierry Reding
[not found] ` <1364502688-5135-2-git-send-email-thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>
2013-03-29 21:46 ` Stephen Warren [this message]
[not found] ` <51560BC4.8020400-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-01 6:03 ` Mark Zhang
2013-04-02 5:28 ` Terje Bergström
[not found] ` <515A6C95.4060900-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-04-02 5:47 ` Thierry Reding
[not found] ` <20130402054722.GA21277-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2013-04-02 5:50 ` Terje Bergström
2013-04-02 9:33 ` Peter De Schrijver
2013-03-28 23:23 ` [PATCH 1/2] clk: tegra: Export peripheral reset functions Stephen Warren
2013-03-29 15:34 ` Stephen Warren
2013-03-29 21:45 ` Stephen Warren
2013-04-02 9:34 ` Peter De Schrijver
[not found] ` <20130402093426.GZ18519-Rysk9IDjsxmJz7etNGeUX8VPkgjIgRvpAL8bYrjMMd8@public.gmane.org>
2013-04-02 17:35 ` Mike Turquette
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