From patchwork Mon May 30 04:01:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hui Wang X-Patchwork-Id: 577855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 834AEC433F5 for ; Mon, 30 May 2022 04:05:43 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A4A951A5E; Mon, 30 May 2022 06:04:51 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A4A951A5E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1653883541; bh=hUIGj+66Z3KjpRGTlRHfZTYIZpZ4igAuWcOXL7FUkOg=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=jWXhM/nKkE56oLCgJ8IDj9p7fR4tbGqcauAmfIry7o2ffBwvckcptQRtT9kzGrJpg ltDcL9zaIlglz49Uj2LYwZFYrf84ske0Z/p1cYC9xE7GIPBOrs6snNZt7y5IhwhlW3 WytE8169zfIEvtMlmOS8txEUUgyflH7h6qTjw/Co= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id CB170F804B4; Mon, 30 May 2022 06:04:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B2920F804BD; Mon, 30 May 2022 06:04:24 +0200 (CEST) Received: from smtp-relay-canonical-1.canonical.com (smtp-relay-canonical-1.canonical.com [185.125.188.121]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 93B5CF8012F for ; Mon, 30 May 2022 06:04:16 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 93B5CF8012F Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=canonical.com header.i=@canonical.com header.b="mg/n9n0n" Received: from localhost.localdomain (unknown [123.112.66.143]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-1.canonical.com (Postfix) with ESMTPSA id 85FA13FC16; Mon, 30 May 2022 04:04:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1653883456; bh=plMwnpl19DuYbav737Lp2hVSLzeRs7TO06F1lmJhPk0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mg/n9n0nPd3jAIza4rPmqFM8Ei6nOj91cmiQaWVCV1eloSh8CywfYyJ1pi5W0GMnM MaNSMIJaDw0/xEh2ZwqTIQqP7CME7oUipup+JAY2rSEiVZFgNxodhiZ8XvKWMJQJ1c UXs65i+SPIJOBZiBdMzCiatEfMSHLPAOQiA7JZt9lfBATiuqegQaCtJqGkzyqUjL5B ghzhw1xMzFUa89tb7C2mlw6kGA3OtBv/HeyyDWvY967Z4oNQqBzDHgjP6fTMfD/BGF mLHL4facBz2lZw3/kVYn6vG2By+du2ki9VszojCYs7hdN6bxXGtB3K6Qf3oGnsaV8a MBCNMvxWKkbTw== From: Hui Wang To: alsa-devel@alsa-project.org, broonie@kernel.org Subject: [PATCH 1/2] ASoC: nau8822: Add operation for internal PLL off and on Date: Mon, 30 May 2022 12:01:50 +0800 Message-Id: <20220530040151.95221-2-hui.wang@canonical.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220530040151.95221-1-hui.wang@canonical.com> References: <20220530040151.95221-1-hui.wang@canonical.com> MIME-Version: 1.0 Cc: wtli@nuvoton.com, kchsu0@nuvoton.com, ctlin0@nuvoton.com, ctlin0.linux@gmail.com X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" We tried to enable the audio on an imx6sx EVB with the codec nau8822, after setting the internal PLL fractional parameters, the audio still couldn't work and the there was no sdma irq at all. After checking with the section "8.1.1 Phase Locked Loop (PLL) Design Example" of "NAU88C22 Datasheet Rev 0.6", we found we need to turn off the PLL before programming fractional parameters and turn on the PLL after programming. After this change, the audio driver could record and play sound and the sdma's irq is triggered when playing or recording. Cc: David Lin Cc: John Hsu Cc: Seven Li Signed-off-by: Hui Wang --- sound/soc/codecs/nau8822.c | 4 ++++ sound/soc/codecs/nau8822.h | 3 +++ 2 files changed, 7 insertions(+) diff --git a/sound/soc/codecs/nau8822.c b/sound/soc/codecs/nau8822.c index 58123390c7a3..b436e532993d 100644 --- a/sound/soc/codecs/nau8822.c +++ b/sound/soc/codecs/nau8822.c @@ -740,6 +740,8 @@ static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source, pll_param->pll_int, pll_param->pll_frac, pll_param->mclk_scaler, pll_param->pre_factor); + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF); snd_soc_component_update_bits(component, NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK, (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) | @@ -757,6 +759,8 @@ static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source, pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT); snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL); + snd_soc_component_update_bits(component, + NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_ON); return 0; } diff --git a/sound/soc/codecs/nau8822.h b/sound/soc/codecs/nau8822.h index 489191ff187e..b45d42c15de6 100644 --- a/sound/soc/codecs/nau8822.h +++ b/sound/soc/codecs/nau8822.h @@ -90,6 +90,9 @@ #define NAU8822_REFIMP_3K 0x3 #define NAU8822_IOBUF_EN (0x1 << 2) #define NAU8822_ABIAS_EN (0x1 << 3) +#define NAU8822_PLL_EN_MASK (0x1 << 5) +#define NAU8822_PLL_ON (0x1 << 5) +#define NAU8822_PLL_OFF (0x0 << 5) /* NAU8822_REG_AUDIO_INTERFACE (0x4) */ #define NAU8822_AIFMT_MASK (0x3 << 3)