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=-16.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 03999C433E0 for ; Tue, 2 Mar 2021 20:45:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF89C64F21 for ; Tue, 2 Mar 2021 20:45:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1839946AbhCBUoa (ORCPT ); Tue, 2 Mar 2021 15:44:30 -0500 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:48262 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1347768AbhCBRym (ORCPT ); Tue, 2 Mar 2021 12:54:42 -0500 Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 122H1q3S022910; Tue, 2 Mar 2021 11:05:07 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=ooarnE2nUSCDeXk59FI8XH/GTKr4wdSqYy9xhrQFVEw=; b=B6aJaQHAv/FPhyGDEvJ/05/q+s86+9ZMBq1oZyTw3Fe8AHZeVNuySEVRGgu1caI8xQGu U/ZILiVFx4ag5KjVNmyM5WnjdLtCn84aFEqlVsWL8r1e8pT0bhNAD5i3PvBkZTgFObMu CRJyT8wHgn7s5r5RTEQZwPwv7bg9NZTE1wyIop7/g1hfvpLx5F/YK5b6vOoWUxQS9Cin nO2bZ/JyZAAHMrD8qgUGwpdWLcgxkaKzlccctrWIOcJ1SNy85Q1k5bcdjtjwbM0YGm6x za9+QHOLWepEgu+cC7PoVfVZvlshpZj89YYo1bOlRgJydKgtPLJY5u7mlKScwm1sf3QT Vw== Received: from ediex01.ad.cirrus.com ([87.246.76.36]) by mx0a-001ae601.pphosted.com with ESMTP id 36ymc6usg9-9 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 02 Mar 2021 11:05:06 -0600 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Tue, 2 Mar 2021 17:05:03 +0000 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.1913.5 via Frontend Transport; Tue, 2 Mar 2021 17:05:03 +0000 Received: from mail1.cirrus.com (unknown [198.61.64.35]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id D07C411D0; Tue, 2 Mar 2021 17:05:02 +0000 (UTC) From: Lucas Tanure To: James Schulman , David Rhodes , Mark Brown , Liam Girdwood CC: Richard Fitzgerald , , , Lucas Tanure , Subject: [PATCH 14/15] ASoC: cs42l42: Wait for PLL to lock before switching to it Date: Tue, 2 Mar 2021 17:04:53 +0000 Message-ID: <20210302170454.39679-15-tanureal@opensource.cirrus.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302170454.39679-1-tanureal@opensource.cirrus.com> References: <20210302170454.39679-1-tanureal@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 clxscore=1015 suspectscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 phishscore=0 spamscore=0 priorityscore=1501 mlxlogscore=952 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103020131 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Richard Fitzgerald The PLL should have locked before using it to supply MCLK. Signed-off-by: Richard Fitzgerald --- sound/soc/codecs/cs42l42.c | 12 +++++++++++- sound/soc/codecs/cs42l42.h | 2 ++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 68b5a450623d3..96f4e98ceaa0b 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -830,6 +830,7 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream) struct cs42l42_private *cs42l42 = snd_soc_component_get_drvdata(component); unsigned int regval; u8 fullScaleVol; + int ret; if (mute) { /* Mute the headphone */ @@ -855,9 +856,18 @@ static int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream) } else { if (!cs42l42->stream_use) { /* SCLK must be running before codec unmute */ - if ((cs42l42->bclk < 11289600) && (cs42l42->sclk < 11289600)) + if ((cs42l42->bclk < 11289600) && (cs42l42->sclk < 11289600)) { snd_soc_component_update_bits(component, CS42L42_PLL_CTL1, CS42L42_PLL_START_MASK, 1); + ret = regmap_read_poll_timeout(cs42l42->regmap, + CS42L42_PLL_LOCK_STATUS, + regval, + (regval & 1), + CS42L42_PLL_LOCK_POLL_US, + CS42L42_PLL_LOCK_TIMEOUT_US); + if (ret < 0) + dev_warn(component->dev, "PLL failed to lock: %d\n", ret); + } /* Mark SCLK as present, turn off internal oscillator */ regmap_multi_reg_write(cs42l42->regmap, cs42l42_to_sclk_seq, diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index a0c87f2326e69..7a5048dfade20 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -756,6 +756,8 @@ #define CS42L42_NUM_SUPPLIES 5 #define CS42L42_BOOT_TIME_US 3000 #define CS42L42_CLOCK_SWITCH_DELAY_US 150 +#define CS42L42_PLL_LOCK_POLL_US 250 +#define CS42L42_PLL_LOCK_TIMEOUT_US 1250 static const char *const cs42l42_supply_names[CS42L42_NUM_SUPPLIES] = { "VA", -- 2.30.1