From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755700AbdCaWGJ (ORCPT ); Fri, 31 Mar 2017 18:06:09 -0400 Received: from mail-pg0-f48.google.com ([74.125.83.48]:33172 "EHLO mail-pg0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755654AbdCaWGH (ORCPT ); Fri, 31 Mar 2017 18:06:07 -0400 From: John Stultz To: lkml Cc: John Stultz , Zhangfei Gao , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Wei Xu , Rob Herring , Andy Green , Dave Long , Guodong Xu Subject: [PATCH 1/3 v4] ASoC: add hi6210-i2s DT bindings Date: Fri, 31 Mar 2017 15:05:59 -0700 Message-Id: <1490997961-31937-2-git-send-email-john.stultz@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1490997961-31937-1-git-send-email-john.stultz@linaro.org> References: <1490997961-31937-1-git-send-email-john.stultz@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adds DT bindings documentation for the hi6210-i2s driver. Cc: Zhangfei Gao Cc: Liam Girdwood Cc: Mark Brown Cc: Jaroslav Kysela Cc: Takashi Iwai Cc: Wei Xu Cc: Rob Herring Cc: Andy Green Cc: Dave Long Cc: Guodong Xu Signed-off-by: John Stultz --- v3: * Simplified and reworked dt binding v4: * Add #sound-dai-cells entry to make it clear multiple dais are possible --- .../bindings/sound/hisilicon,hi6210-i2s.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt diff --git a/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt b/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt new file mode 100644 index 0000000..680bb035 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt @@ -0,0 +1,34 @@ +* Hisilicon 6210 i2s controller + +Required properties: + +- compatible: should be one of the following: + - "hisilicon,hi6210-i2s" +- reg: physical base address of the i2s controller unit and length of + memory mapped region. +- interrupts: should contain the i2s interrupt. +- clocks: a list of phandle + clock-specifier pairs, one for each entry + in clock-names. +- clock-names: should contain following: + - "dacodec" + - "i2s-base" +- dmas: DMA specifiers for tx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: should be "tx" and "rx" +- hisilicon,sysctrl-syscon: phandle to sysctrl syscon +- #sound-dai-cells: Should be set to 1 (for multi-dai) + +Example for the hi6210 i2s controller: + +i2s0: i2s@f7118000{ + compatible = "hisilicon,hi6210-i2s"; + reg = <0x0 0xf7118000 0x0 0x8000>; /* i2s unit */ + interrupts = ; /* 155 "DigACodec_intr"-32 */ + clocks = <&sys_ctrl HI6220_DACODEC_PCLK>, + <&sys_ctrl HI6220_BBPPLL0_DIV>; + clock-names = "dacodec", "i2s-base"; + dmas = <&dma0 15 &dma0 14>; + dma-names = "rx", "tx"; + hisilicon,sysctrl-syscon = <&sys_ctrl>; + #sound-dai-cells = <1>; +}; -- 2.7.4