From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752352AbdLLIML (ORCPT ); Tue, 12 Dec 2017 03:12:11 -0500 Received: from mirror2.csie.ntu.edu.tw ([140.112.30.76]:37454 "EHLO wens.csie.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751609AbdLLIL7 (ORCPT ); Tue, 12 Dec 2017 03:11:59 -0500 From: Chen-Yu Tsai To: Maxime Ripard , Rob Herring , Mark Rutland , Liam Girdwood , Mark Brown Cc: Chen-Yu Tsai , Marcus Cooper , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/4] [DO NOT MERGE] ARM: dts: sun8i: a83t: bpi-m3: Enable PCM5122 codec with I2S1 Date: Tue, 12 Dec 2017 16:11:48 +0800 Message-Id: <20171212081148.9194-5-wens@csie.org> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20171212081148.9194-1-wens@csie.org> References: <20171212081148.9194-1-wens@csie.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch enables a PiFi DAC+ V2.0, which is a PCM5122-based audio output DAC add-on board for the Raspberry Pi B+ and later, connected to the GPIO header of the Bananapi M3 via jumper cables. The power, ground, and I2C pins are in the same position, but the I2S ones are not. The I2C controller used is I2C2, while the I2S controller is I2S1. Signed-off-by: Chen-Yu Tsai --- I'm sure I've asked this before, and IIRC the answer was yes: The I2C controllers available on the GPIO header all have proper, always-on, external pull-ups. Does that mean we can enable them by default, seeing as they are likely intended to be used this way (as I2C pins)? I think we have a few boards where either I2C or UARTs on the GPIO header are enabled by default. --- arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts index 6550bf0e594b..a9a208ebda12 100644 --- a/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts +++ b/arch/arm/boot/dts/sun8i-a83t-bananapi-m3.dts @@ -70,6 +70,23 @@ gpio = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ }; + sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "PiFi DAC+ v2.0"; + simple-audio-card,format = "i2s"; + simple-audio-card,mclk-fs = <512>; + simple-audio-card,frame-master = <&link_cpu>; + simple-audio-card,bitclock-master = <&link_cpu>; + + link_cpu: simple-audio-card,cpu { + sound-dai = <&i2s1>; + }; + + simple-audio-card,codec { + sound-dai = <&pcm5122>; + }; + }; + wifi_pwrseq: wifi_pwrseq { compatible = "mmc-pwrseq-simple"; clocks = <&ac100_rtc 1>; @@ -100,6 +117,22 @@ status = "okay"; }; +&i2c2 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c2_ph_pins>; + status = "okay"; + + pcm5122: pcm5122@4d { + #sound-dai-cells = <0>; + compatible = "ti,pcm5122"; + reg = <0x4d>; + }; +}; + +&i2s1 { + status = "okay"; +}; + &mdio { rgmii_phy: ethernet-phy@1 { compatible = "ethernet-phy-ieee802.3-c22"; -- 2.15.0