From patchwork Sat Jul 5 11:10:38 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: jianqun X-Patchwork-Id: 4487101 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E60279F358 for ; Sat, 5 Jul 2014 11:12:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2218A203F1 for ; Sat, 5 Jul 2014 11:12:23 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id ECEF0202EC for ; Sat, 5 Jul 2014 11:12:21 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 37262265309; Sat, 5 Jul 2014 13:12:15 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 83829264EBF; Sat, 5 Jul 2014 13:12:05 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id C2B5D264F09; Sat, 5 Jul 2014 13:12:03 +0200 (CEST) Received: from regular1.263xmail.com (regular1.263xmail.com [211.150.99.134]) by alsa0.perex.cz (Postfix) with ESMTP id A65B5262631 for ; Sat, 5 Jul 2014 13:11:51 +0200 (CEST) Received: from xjq?rock-chips.com (unknown [192.168.167.158]) by regular1.263xmail.com (Postfix) with SMTP id 40BFF439B; Sat, 5 Jul 2014 19:11:47 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ABS-CHECKED: 4 X-KSVirus-check: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 9D865291CB; Sat, 5 Jul 2014 19:11:42 +0800 (CST) X-RL-SENDER: xjq@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 127.0.0.1 X-LOGIN-NAME: xjq@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: xjq@rock-chips.com X-DNS-TYPE: 1 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) whith ESMTP id 3301O751VN; Sat, 05 Jul 2014 19:11:42 +0800 (CST) From: jianqun To: heiko@sntech.de, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.de, grant.likely@linaro.org, robh+dt@kernel.org Date: Sat, 5 Jul 2014 19:10:38 +0800 Message-Id: <1404558638-1739-1-git-send-email-xjq@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1404458796-6818-1-git-send-email-xjq@rock-chips.com> References: <1404458796-6818-1-git-send-email-xjq@rock-chips.com> Cc: huangtao@rock-chips.com, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, yzq@rock-chips.com, zhangqing@rock-chips.com, linux-kernel@vger.kernel.org, kever.yang@rock-chips.com, cf@rock-chips.com, Jianqun Xu , kfx@rock-chips.com, zyw@rock-chips.com, hj@rock-chips.com, zhenfu.fang@rock-chips.com Subject: [alsa-devel] [PATCH v3 1/2] ASoC: dt-bindings: add rockchip i2s bindings X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jianqun Xu Add devicetree bindings for i2s controller found on rk3066, rk3188 and rk3288 processors from rockchip. Signed-off-by: Jianqun Xu --- changes since v2: - change the description of dma-names, adviced by Mark - change the description of interrupts, adviced by Mark - list clock-names to be easy to read, adviced by Mark - modify compatible for rk3288 example, adviced by Mark and Heiko changes since v1: - modify the description of clock-names property, adviced by Mark Rutland. - modify the example to fit for rk3288. .../devicetree/bindings/sound/rockchip-i2s.txt | 37 ++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rockchip-i2s.txt diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt new file mode 100644 index 0000000..6c55fcf --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt @@ -0,0 +1,37 @@ +* Rockchip I2S controller + +The I2S bus (Inter-IC sound bus) is a serial link for digital +audio data transfer between devices in the system. + +Required properties: + +- compatible: should be one of the followings + - "rockchip,rk3066-i2s": for rk3066 + - "rockchip,rk3188-i2s", "rockchip,rk3066-i2s": for rk3188 + - "rockchip,rk3288-i2s", "rockchip,rk3066-i2s": for rk3288 +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: should contain the I2S interrupt. +- #address-cells: should be 1. +- #size-cells: should be 0. +- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: should include "tx" and "rx". +- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names. +- clock-names: should contain followings: + - "i2s_hclk": clock for I2S BUS + - "i2s_clk" : clock for I2S controller + +Example for rk3288 I2S controller: + +i2s@ff890000 { + compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s"; + reg = <0xff890000 0x10000>; + interrupts = ; + #address-cells = <1>; + #size-cells = <0>; + dmas = <&pdma1 0>, <&pdma1 1>; + dma-names = "rx", "tx"; + clock-names = "i2s_hclk", "i2s_clk"; + clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>; +};