Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932153AbaGELMA (ORCPT ); Sat, 5 Jul 2014 07:12:00 -0400 Received: from regular1.263xmail.com ([211.150.99.134]:44331 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752126AbaGELL6 (ORCPT ); Sat, 5 Jul 2014 07:11:58 -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: 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 v3 1/2] ASoC: dt-bindings: add rockchip i2s bindings 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> 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 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>; +}; -- 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/