From patchwork Mon Apr 28 10:54:53 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 4076821 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0D93ABFF02 for ; Mon, 28 Apr 2014 11:09:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 16F4F20200 for ; Mon, 28 Apr 2014 11:09:38 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id BED20201B4 for ; Mon, 28 Apr 2014 11:09:36 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id C4A90265176; Mon, 28 Apr 2014 13:09:35 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 4C49326509A; Mon, 28 Apr 2014 13:00:12 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 9F3BE261A73; Mon, 28 Apr 2014 13:00:08 +0200 (CEST) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [92.198.50.35]) by alsa0.perex.cz (Postfix) with ESMTP id F1888261A73 for ; Mon, 28 Apr 2014 12:55:53 +0200 (CEST) Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:a236:9fff:fe00:814]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1WejDV-0008Qq-Nk; Mon, 28 Apr 2014 12:55:21 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.82) (envelope-from ) id 1WejDJ-0001Il-Tu; Mon, 28 Apr 2014 12:55:09 +0200 From: Markus Pargmann To: Mark Brown Date: Mon, 28 Apr 2014 12:54:53 +0200 Message-Id: <1398682498-24357-13-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1398682498-24357-1-git-send-email-mpa@pengutronix.de> References: <1398682498-24357-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:6f8:1178:2:a236:9fff:fe00:814 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: alsa-devel@alsa-project.org Cc: Fabio Estevam , alsa-devel@alsa-project.org, Alexander Shiyan , Sascha Hauer , Timur Tabi , "Li.Xiubo@freescale.com" , kernel@pengutronix.de, Nicolin Chen , linux-arm-kernel@lists.infradead.org Subject: [alsa-devel] [PATCH v4 12/17] ASoC: fsl-ssi: set bitclock in master mode from hw_params X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sascha Hauer The fsl_ssi driver uses the .set_sysclk callback to configure the bitclock for master mode. This is unnecessary since the bitclock is known in hw_params. This patch removes the .set_sysclk callback and configures the bitclock from .hw_params. Signed-off-by: Sascha Hauer --- sound/soc/fsl/fsl_ssi.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index d8f9a5f..8ed724c 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -509,7 +509,7 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream, } /** - * fsl_ssi_set_dai_sysclk - configure Digital Audio Interface bit clock + * fsl_ssi_set_bclk - configure Digital Audio Interface bit clock * * Note: This function can be only called when using SSI as DAI master * @@ -517,8 +517,8 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream, * freq: Output BCLK frequency = samplerate * 32 (fixed) * channels * dir: SND_SOC_CLOCK_OUT -> TxBCLK, SND_SOC_CLOCK_IN -> RxBCLK. */ -static int fsl_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai, - int clk_id, unsigned int freq, int dir) +static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai, unsigned int freq) { struct fsl_ssi_private *ssi_private = snd_soc_dai_get_drvdata(cpu_dai); struct ccsr_ssi __iomem *ssi = ssi_private->ssi; @@ -583,7 +583,7 @@ static int fsl_ssi_set_dai_sysclk(struct snd_soc_dai *cpu_dai, mask = CCSR_SSI_SxCCR_PM_MASK | CCSR_SSI_SxCCR_DIV2 | CCSR_SSI_SxCCR_PSR; - if (dir == SND_SOC_CLOCK_OUT || synchronous) + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK || synchronous) write_ssi_mask(&ssi->stccr, mask, stccr); else write_ssi_mask(&ssi->srccr, mask, stccr); @@ -627,6 +627,7 @@ static int fsl_ssi_hw_params(struct snd_pcm_substream *substream, snd_pcm_format_width(params_format(hw_params)); u32 wl = CCSR_SSI_SxCCR_WL(sample_size); int enabled = read_ssi(&ssi->scr) & CCSR_SSI_SCR_SSIEN; + int ret; /* * If we're in synchronous mode, and the SSI is already enabled, @@ -635,6 +636,14 @@ static int fsl_ssi_hw_params(struct snd_pcm_substream *substream, if (enabled && ssi_private->cpu_dai_drv.symmetric_rates) return 0; + if (fsl_ssi_is_i2s_master(ssi_private)) { + ret = fsl_ssi_set_bclk(substream, cpu_dai, + params_channels(hw_params) * 32 * + params_rate(hw_params)); + if (ret) + return ret; + } + /* * FIXME: The documentation says that SxCCR[WL] should not be * modified while the SSI is enabled. The only time this can @@ -923,7 +932,6 @@ static const struct snd_soc_dai_ops fsl_ssi_dai_ops = { .startup = fsl_ssi_startup, .hw_params = fsl_ssi_hw_params, .set_fmt = fsl_ssi_set_dai_fmt, - .set_sysclk = fsl_ssi_set_dai_sysclk, .set_tdm_slot = fsl_ssi_set_dai_tdm_slot, .trigger = fsl_ssi_trigger, };