Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755884AbaGAKJ5 (ORCPT ); Tue, 1 Jul 2014 06:09:57 -0400 Received: from regular1.263xmail.com ([211.150.99.130]:33688 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752804AbaGAKJz (ORCPT ); Tue, 1 Jul 2014 06:09:55 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ABS-CHECKED: 4 X-KSVirus-check: 0 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: <98be10a3bf8c7a3637b5a802b5718f59> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 1 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 Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, devicetree@vger.kernel.org, zhangqing@rock-chips.com, hj@rock-chips.com, kever.yang@rock-chips.com, huangtao@rock-chips.com, zyw@rock-chips.com, yzq@rock-chips.com, zhenfu.fang@rock-chips.com, cf@rock-chips.com, kfx@rock-chips.com, Jianqun Xu Subject: [PATCH 1/2] ASoC: dt-bindings: add rockchip i2s bindings Date: Tue, 1 Jul 2014 18:08:37 +0800 Message-Id: <1404209317-740-1-git-send-email-xjq@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <20140701085442.GI28740@leverpostej> References: <20140701085442.GI28740@leverpostej> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 v1: - dt-bindings: change dmas and clocks description, adviced by mark.rutland .../devicetree/bindings/sound/rockchip-i2s.txt | 44 ++++++++++++++++++++ 1 file changed, 44 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..db26e09 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt @@ -0,0 +1,44 @@ +* Rockchip I2S controller + +The I2S bus (Inter-IC sound bus) is a serial link for digital audio data transfer +between devices in the system and be invented by Philips Semiconductor. + +Required properties: + +- compatible : should be one of the following. + "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 : The interrupt number to the cpu. The interrupt specifier format + depends on the interrupt controller. +- #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: DMA request names should include "tx" and "rx" if present. +- clocks : a list of phandle + clock-specifer pairs, one for each entry in clock-names. +- clock-names : Should include "i2s_hclk" and "i2s_clk", + - "i2s_hclk": support AHB bus interface + - "i2s_clk": work clock for i2s controller +- aliases : Since device need i2s channel number as part of device's name, + driver will get its id by of_alias_get_id(np, "i2s"). + +Example: + +aliases { + i2s0 = &i2s0; +} + +i2s0: i2s@ff890000 { + compatible = "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>; +}; -- 1.7.9.5 -- 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/