Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753936Ab3GINTd (ORCPT ); Tue, 9 Jul 2013 09:19:33 -0400 Received: from mail-ie0-f180.google.com ([209.85.223.180]:58195 "EHLO mail-ie0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752846Ab3GINTa (ORCPT ); Tue, 9 Jul 2013 09:19:30 -0400 MIME-Version: 1.0 In-Reply-To: <1373372929-17800-4-git-send-email-richard.genoud@gmail.com> References: <1373290193-25300-1-git-send-email-richard.genoud@gmail.com> <1373372929-17800-1-git-send-email-richard.genoud@gmail.com> <1373372929-17800-4-git-send-email-richard.genoud@gmail.com> From: Richard Genoud Date: Tue, 9 Jul 2013 15:19:09 +0200 Message-ID: Subject: Re: [PATCH v3 3/7] Documentation: DT: update atmel SSC with DMA binding To: Mark Brown , Nicolas Ferre , Liam Girdwood Cc: Bo Shen , Lars-Peter Clausen , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, devicetree-discuss@lists.ozlabs.org, Richard Genoud Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2227 Lines: 61 2013/7/9 Richard Genoud : > As atmel-ssc can be used with DMA, the documentation should be updated. > Also, a configuration DMA example is given. > > Signed-off-by: Richard Genoud > --- > .../devicetree/bindings/misc/atmel-ssc.txt | 24 ++++++++++++++++++-- > 1 file changed, 22 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > index 38e51ad..96958ca 100644 > --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt > +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt > @@ -6,10 +6,30 @@ Required properties: > - atmel,at91sam9g45-ssc: support dma transfer > - reg: Should contain SSC registers location and length > - interrupts: Should contain SSC interrupt > +For dma transfer: > +- dmas: DMA specifier, consisting of a phandle to DMA controller node, > + the memory interface and SSC DMA channel ID (for tx and rx). > + See Documentation/devicetree/bindings/dma/atmel-dma.txt for details. > +- dma-names: Must be "tx", "rx". > > -Example: > + > +Examples: > ssc0: ssc@fffbc000 { > compatible = "atmel,at91rm9200-ssc"; > reg = <0xfffbc000 0x4000>; > - interrupts = <14 4 5>; > + interrupts = <14 IRQ_TYPE_LEVEL_HIGH 5>; maybe I should not use macro in the documentation (not sure if I should or not). > }; > + > + > +ssc0: ssc@f0010000 { > + compatible = "atmel,at91sam9g45-ssc"; > + reg = <0xf0010000 0x4000>; > + interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>; > + dmas = <&dma0 1 AT91_DMA_CFG_PER_ID(13)>, > + <&dma0 1 AT91_DMA_CFG_PER_ID(14)>; same here > + dma-names = "tx", "rx"; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>; > + status = "disabled"; > +}; > + > -- > 1.7.10.4 > -- for me, ck means con kolivas and not calvin klein... does it mean I'm a geek ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/