Re: [PATCH] arm: omap4: pandaboard: turn on PHY reference clock atinit

From: Tony Lindgren
Date: Mon Jan 10 2011 - 14:12:16 EST


* Paul Walmsley <paul@xxxxxxxxx> [110110 10:51]:
> On Mon, 10 Jan 2011, Anand Gadiyar wrote:
>
> > The SMSC 3320 USB PHY on the OMAP4 Pandaboard needs a 19.2 MHz
> > reference clock. This clock is provided from the OMAP4's fref_clk3
> > pad.
> >
> > Recent changes to clock44xx_data.c made the clock framework aware
> > of the existence of these fref_clk[i] lines. If the option
> > CONFIG_OMAP_RESET_CLOCKS is enabled in the kernel, then the
> > clock framework will turn these clocks off during bootup.
> >
> > Explicitly request and keep this clock enabled at init for the
> > Pandaboard, so that the PHY receives this clock at all times.
> >
> > Reported-by: Ming Lei <tom.leiming@xxxxxxxxx>
> > Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx>
> > Cc: Benoit Cousson <b-cousson@xxxxxx>
> > Cc: Paul Walmsley <paul@xxxxxxxxx>
> > Cc: Tony Lindgren <tony@xxxxxxxxxxx>
>
> Reviewed-by: Paul Walmsley <paul@xxxxxxxxx>

Will queue as a fix.

Tony
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