linux-kernel - Re: [PATCH 7/8] serial: xilinx_uartps: get clock rate info from dts

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Date:	Fri, 2 Nov 2012 07:39:29 -0600
From:	Josh Cartwright <josh.cartwright@...com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Russell King <linux@....linux.org.uk>,
	Mike Turquette <mturquette@...com>,
	John Stultz <johnstul@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Alan Cox <alan@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	John Linn <John.Linn@...inx.com>,
	Michal Simek <michal.simek@...inx.com>,
	devicetree-discuss@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-serial@...r.kernel.org,
	Michal Simek <monstr@...str.eu>
Subject: Re: [PATCH 7/8] serial: xilinx_uartps: get clock rate info from dts

On Fri, Nov 02, 2012 at 10:20:33AM +0100, Lars-Peter Clausen wrote:
> On 10/31/2012 08:28 PM, Josh Cartwright wrote:
> > Add support for specifying clock information for the uart clk via the
> > device tree.  This eliminates the need to hardcode rates in the device
> > tree.
> > 
> > Signed-off-by: Josh Cartwright <josh.cartwright@...com>
> > ---
> >  arch/arm/boot/dts/zynq-7000.dtsi   |  4 ++--
> >  drivers/tty/serial/xilinx_uartps.c | 30 +++++++++++++++++-------------
> >  2 files changed, 19 insertions(+), 15 deletions(-)
> > 
> > diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
> > index bb3085c..5fb763f 100644
> > --- a/arch/arm/boot/dts/zynq-7000.dtsi
> > +++ b/arch/arm/boot/dts/zynq-7000.dtsi
> > @@ -44,14 +44,14 @@
> >  			compatible = "xlnx,xuartps";
> >  			reg = <0xE0000000 0x1000>;
> >  			interrupts = <0 27 4>;
> > -			clock = <50000000>;
> > +			clocks = <&uart_clk 0>;
> >  		};
> >  
> >  		uart1: uart@...01000 {
> >  			compatible = "xlnx,xuartps";
> >  			reg = <0xE0001000 0x1000>;
> >  			interrupts = <0 50 4>;
> > -			clock = <50000000>;
> > +			clocks = <&uart_clk 0>;
> 
> Shouldn't this be <&uart_clk 1>?

Yes, indeed.

Thanks,
  Josh

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