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Date: Sun, 20 Feb 2011 20:23:20 -0800 From: Olof Johansson <olof@...om.net> To: Colin Cross <ccross@...roid.com> Cc: linux-tegra@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, konkers@...roid.com, Russell King <linux@....linux.org.uk>, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2 18/21] ARM: tegra: cpufreq: Adjust memory frequency with cpu frequency On Sat, Feb 19, 2011 at 2:26 PM, Colin Cross <ccross@...roid.com> wrote: > Signed-off-by: Colin Cross <ccross@...roid.com> Patch description please. Besides that: Acked-by: Olof Johansson <olof@...om.net> But note for future work: > + /* > + * Vote on memory bus frequency based on cpu frequency > + * This sets the minimum frequency, display or avp may request higher > + */ > + if (rate >= 816000) > + clk_set_rate(emc_clk, 600000000); /* cpu 816 MHz, emc max */ > + else if (rate >= 456000) > + clk_set_rate(emc_clk, 300000000); /* cpu 456 MHz, emc 150Mhz */ > + else > + clk_set_rate(emc_clk, 100000000); /* emc 50Mhz */ > + This hardcodes frequencies that might or might not be used on some systems and some parts. So it'll need to be revisited when enabling other configurations. -Olof -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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