From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38F02C2D0E0 for ; Tue, 15 Sep 2020 19:08:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EC2592078E for ; Tue, 15 Sep 2020 19:08:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="dJDHqhDL" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727892AbgIOTIU (ORCPT ); Tue, 15 Sep 2020 15:08:20 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:49732 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727984AbgIOTG3 (ORCPT ); Tue, 15 Sep 2020 15:06:29 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 08FJ6HwF013519; Tue, 15 Sep 2020 14:06:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1600196777; bh=DkyZu5LoKU5RAM9n+bYIZ61osvE1080309ep6aCvTeQ=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=dJDHqhDLlbu/voylnBEqiHCcamsxrLf7XEuptb+xoVF1Dy5AtnD6Zdb+GfFaiKH14 0mQ8Swajq7q18FBSuLLnOa7qwHAJPg/3/+xrEPYEoHHisv5tqt5I0parp7Hs2OuFUF boZeL5akkfU/5gvYj5CbHftCbDOExC0ehAQB9neo= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 08FJ6HI8060486 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 15 Sep 2020 14:06:17 -0500 Received: from DLEE108.ent.ti.com (157.170.170.38) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 15 Sep 2020 14:06:17 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 15 Sep 2020 14:06:17 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 08FJ6HpF008040; Tue, 15 Sep 2020 14:06:17 -0500 From: Dan Murphy To: , , , CC: , , , , Dan Murphy Subject: [PATCH 2/6] ASoC: tlv320adcx140: Fix BCLK inversion for DSP modes Date: Tue, 15 Sep 2020 14:06:02 -0500 Message-ID: <20200915190606.1744-2-dmurphy@ti.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200915190606.1744-1-dmurphy@ti.com> References: <20200915190606.1744-1-dmurphy@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix the BCLK inversion for DSP modes This is how it is defined by ASoC: * BCLK: * - "normal" polarity means signal is available at rising edge of BCLK * - "inverted" polarity means signal is available at falling edge of BCLK The adcx140 defines the BCLK edge based on coding type. The PCM (DSP_A/B) should drive on rising and sample on falling edge, so from ASoC pov, it is IB_NF. But from the codec pov if it is configured in DSP mode, then the BCLK should not be inverted, defaults to the coding standard. For i2s, it is NB_NF from ASoC pov (drive on falling, sample on rising). >From the codec's pov BCLK should not invert either, as this is the default for the coding. So, inversion must take the format into account: IB_NF + DSP_A/B == the codec bclk inversion should be disabled NB_NF + DSP_A/B == the codec bclk inversion should be enabled NB_NF + I2S == the codec bclk inversion should be disabled Signed-off-by: Dan Murphy --- sound/soc/codecs/tlv320adcx140.c | 44 +++++++++++++++++--------------- 1 file changed, 23 insertions(+), 21 deletions(-) diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index 3909c1cf52be..73d18e8002e4 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -673,7 +673,7 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai, u8 iface_reg1 = 0; u8 iface_reg2 = 0; int offset = 0; - int width = adcx140->slot_width; + bool inverted_bclk = false; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { @@ -689,24 +689,6 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai, return -EINVAL; } - /* signal polarity */ - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_IF: - iface_reg1 |= ADCX140_FSYNCINV_BIT; - break; - case SND_SOC_DAIFMT_IB_IF: - iface_reg1 |= ADCX140_BCLKINV_BIT | ADCX140_FSYNCINV_BIT; - break; - case SND_SOC_DAIFMT_IB_NF: - iface_reg1 |= ADCX140_BCLKINV_BIT; - break; - case SND_SOC_DAIFMT_NB_NF: - break; - default: - dev_err(component->dev, "Invalid DAI clock signal polarity\n"); - return -EINVAL; - } - /* interface format */ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: @@ -716,16 +698,36 @@ static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai, iface_reg1 |= ADCX140_LEFT_JUST_BIT; break; case SND_SOC_DAIFMT_DSP_A: - offset += (adcx140->tdm_delay * width + 1); + offset = 1; + inverted_bclk = true; break; case SND_SOC_DAIFMT_DSP_B: - offset += adcx140->tdm_delay * width; + inverted_bclk = true; break; default: dev_err(component->dev, "Invalid DAI interface format\n"); return -EINVAL; } + /* signal polarity */ + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_IB_NF: + case SND_SOC_DAIFMT_IB_IF: + inverted_bclk = !inverted_bclk; + break; + case SND_SOC_DAIFMT_NB_IF: + iface_reg1 |= ADCX140_FSYNCINV_BIT; + break; + case SND_SOC_DAIFMT_NB_NF: + break; + default: + dev_err(component->dev, "Invalid DAI clock signal polarity\n"); + return -EINVAL; + } + + if (inverted_bclk) + iface_reg1 |= ADCX140_BCLKINV_BIT; + adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; adcx140_pwr_ctrl(adcx140, false); -- 2.28.0