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

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Date:	Fri, 02 Nov 2012 10:20:33 +0100
From:	Lars-Peter Clausen <lars@...afoo.de>
To:	Josh Cartwright <josh.cartwright@...com>
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 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>?

>  		};
>  
>  		slcr: slcr@...00000 {

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