From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932158AbaKSIHm (ORCPT ); Wed, 19 Nov 2014 03:07:42 -0500 Received: from regular1.263xmail.com ([211.150.99.135]:40717 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754976AbaKSIHl (ORCPT ); Wed, 19 Nov 2014 03:07:41 -0500 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-RL-SENDER: jay.xu@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 127.0.0.1 X-LOGIN-NAME: jay.xu@rock-chips.com X-UNIQUE-TAG: <4b8a38f2930fcf886500744bbe5f1bd2> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Jianqun Xu To: heiko@sntech.de, lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.de, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, huangtao@rock-chips.com Cc: Jianqun Xu Subject: [PATCH v2 1/2] ASoC: rockchip-i2s: dt: add an optional property "i2s_clk_out" Date: Wed, 19 Nov 2014 16:07:27 +0800 Message-Id: <1416384447-29391-1-git-send-email-jay.xu@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1416366365-4632-2-git-send-email-jay.xu@rock-chips.com> References: <1416366365-4632-2-git-send-email-jay.xu@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add an property "i2s_clk_out", which enables to output clock to outside of rockchip SoCs. Let's make it optional since not each board needs it. Signed-off-by: Jianqun Xu --- changes since v1: - make "i2s_clk_out" optional, suggested by Sonny Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt index 9b82c20..6dedd0d 100644 --- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt +++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt @@ -22,6 +22,10 @@ Required properties: - "i2s_hclk": clock for I2S BUS - "i2s_clk" : clock for I2S controller +Optional property: + - "i2s_clk_out" : clock output to outside of chip, usally as master clock for audio + codec chip + Example for rk3288 I2S controller: i2s@ff890000 { @@ -32,6 +36,6 @@ i2s@ff890000 { #size-cells = <0>; dmas = <&pdma1 0>, <&pdma1 1>; dma-names = "tx", "rx"; - clock-names = "i2s_hclk", "i2s_clk"; - clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>; + clock-names = "i2s_hclk", "i2s_clk", "i2s_clk_out"; + clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>, <&cru SCLK_I2S0_CLKOUT>; }; -- 1.9.1