From patchwork Thu Apr 7 08:49:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 12804776 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F422DC433EF for ; Thu, 7 Apr 2022 08:49:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243293AbiDGIv4 (ORCPT ); Thu, 7 Apr 2022 04:51:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243423AbiDGIvw (ORCPT ); Thu, 7 Apr 2022 04:51:52 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D37FD102409 for ; Thu, 7 Apr 2022 01:49:52 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ncNpr-0003fs-Dl; Thu, 07 Apr 2022 10:49:47 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1ncNpr-001ZrZ-Qi; Thu, 07 Apr 2022 10:49:46 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1ncNpm-000w4a-QX; Thu, 07 Apr 2022 10:49:42 +0200 From: Sascha Hauer To: alsa-devel@alsa-project.org Cc: Xiubo Li , Fabio Estevam , Shengjiu Wang , kernel@pengutronix.de, Vinod Koul , NXP Linux Team , dmaengine@vger.kernel.org, Sascha Hauer Subject: [PATCH v4 13/21] ASoC: fsl_micfil: use define for OSR default value Date: Thu, 7 Apr 2022 10:49:28 +0200 Message-Id: <20220407084936.223075-14-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220407084936.223075-1-s.hauer@pengutronix.de> References: <20220407084936.223075-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dmaengine@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org The OSR (OverSampling Rate) setting is set once to the default value and never changed throughout the driver. Nevertheless the value is read back from the register for further calculations. Just use the default value because we know what we have written. Signed-off-by: Sascha Hauer --- Notes: Changes since v3: - Drop adding unused 'osr' to struct fsl_micfil sound/soc/fsl/fsl_micfil.c | 9 +++++---- sound/soc/fsl/fsl_micfil.h | 1 - 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 56df916ad55f2..a35c1c580dbc1 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -29,6 +29,8 @@ #define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 #define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) +#define MICFIL_OSR_DEFAULT 16 + struct fsl_micfil { struct platform_device *pdev; struct regmap *regmap; @@ -112,11 +114,11 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, unsigned int rate) { u32 ctrl2_reg; - int qsel, osr; + int qsel; int bclk; + int osr = MICFIL_OSR_DEFAULT; regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); - osr = 16 - FIELD_GET(MICFIL_CTRL2_CICOSR, ctrl2_reg); qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg); switch (qsel) { @@ -282,7 +284,7 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) /* set CICOSR */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_CICOSR, - FIELD_PREP(MICFIL_CTRL2_CICOSR, MICFIL_CTRL2_CICOSR_DEFAULT)); + FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - MICFIL_OSR_DEFAULT)); if (ret) return ret; @@ -673,7 +675,6 @@ static int fsl_micfil_probe(struct platform_device *pdev) micfil->dma_params_rx.addr = res->start + REG_MICFIL_DATACH0; micfil->dma_params_rx.maxburst = MICFIL_DMA_MAXBURST_RX; - platform_set_drvdata(pdev, micfil); pm_runtime_enable(&pdev->dev); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index 5cecae2519795..08901827047db 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -58,7 +58,6 @@ #define MICFIL_QSEL_VLOW2_QUALITY 4 #define MICFIL_CTRL2_CICOSR GENMASK(19, 16) -#define MICFIL_CTRL2_CICOSR_DEFAULT 0 #define MICFIL_CTRL2_CLKDIV GENMASK(7, 0) /* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */