linux-kernel - Re: [PATCH] ARM: mx28: add dma channels for all auarts

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Date:	Fri, 19 Apr 2013 18:11:34 +0200
From:	Eric Bénard <eric@...rea.com>
To:	Fabio Estevam <festevam@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, shawn.guo@...aro.org,
	linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: Re: [PATCH] ARM: mx28: add dma channels for all auarts

Hi Fabio,

Le Fri, 19 Apr 2013 12:26:33 -0300,
Fabio Estevam <festevam@...il.com> a écrit :
> On Fri, Apr 19, 2013 at 12:05 PM, Eric Bénard <eric@...rea.com> wrote:
> > Only auart0 was filled.
> > Tested on a custom i.MX283 board for ttyAPP1/2/3/4.
> >
> > Signed-off-by: Eric Bénard <eric@...rea.com>
> > ---
> >  arch/arm/boot/dts/imx28.dtsi | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
> > index 25f2243..15933ed 100644
> > --- a/arch/arm/boot/dts/imx28.dtsi
> > +++ b/arch/arm/boot/dts/imx28.dtsi
> > @@ -886,6 +886,7 @@
> >                                 compatible = "fsl,imx28-auart", "fsl,imx23-auart";
> >                                 reg = <0x8006c000 0x2000>;
> >                                 interrupts = <113 72 73>;
> > +                               fsl,auart-dma-channel = <10 11>;
> 
> Now we use the generic 'dmas' binding to passing such information.
> 
> If you look at linux-next tree these UART dma channels are already
> been passed via the new 'dmas' method:
> 
> 			auart1: serial@...6c000 {
> 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
> 				reg = <0x8006c000 0x2000>;
> 				interrupts = <113 72 73>;
> 				dmas = <&dma_apbx 10>, <&dma_apbx 11>;
> 				dma-names = "rx", "tx";
> 				clocks = <&clks 45>;
> 				status = "disabled";
> 			};

OK so forget my patch it was against 3.9-rc

Eric
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